الكويز الاول رياضيات Quiz 1

R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [2 (x - 5) + 4 x] â€“ [5 (x - 3) - 2 x]

3x+5

$S o l v e t h e e q u a t i o n : 3 â€“ 4 (x + 1) = 2 (x â€“ 5) â€“ 3 i s :$

x=2

$T h e o p p o s i t e v a l u e o f 1 i s :$

-1

$E v a l u a t e \frac{3 a + 2 b}{5 c}, w h e n a = b = 3 a n d c = 1 .$

$T r a n s l a t e “ T w i c e n u m b e r m o r e t h a n - 1 ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$n m - 1$
	B.	$n m + 1$
	C.	$2 n + 1$
	D.	$2 n - 1$

T r a n s l a t e space space “ T w i c e space n u m b e r space m o r e space t h a n space minus 1 ” space space t o space a n space a l g e b r a i c space e x p r e s s i o n.

$S o l v e t h e e q u a t i o n : 3 - 4 (x + 1) = 2 (x - 5) - 3 i s :$

	A.	$ℝ$
	B.	$x = - 2$
	C.	$x = 2$
	D.	$\emptyset$

S o l v e space t h e space e q u a t i o n colon space space space space space 3 space – space 4 left parenthesis x space plus space 1 right parenthesis space equals space 2 left parenthesis x space – space 5 right parenthesis space – space 3 space space space space space space i s colon

$F o r a n y r e a l n u m b e r x, t h e r e c i p r o c a l s o f x, e x p r e s s e d a s - x .$

صواب

خطأ

F o r space a n y space r e a l space n u m b e r space x comma space t h e space r e c i p r o c a l s space o f space x comma space e x p r e s s e d space a s space minus x. space space space space

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : (6 x - 3 y) - 6 (5 x + 2 y - 10)$

	A.	$60 - 15 x - 24 y$
	B.	$60 + 15 x + 24 y$
	C.	$60 + 15 y + 24 x$
	D.	$60 - 15 y - 24 x$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space space left parenthesis 6 x space – space 3 y right parenthesis space – space 6 left parenthesis 5 x space plus space 2 y space minus space 10 right parenthesis space

$E v a l u a t e 3 (2 a c - a b), w h e n a = b = c = 1$

	A.	$6$
	B.	$- 6$
	C.	$3$
	D.	$- 3$

E v a l u a t e space space space space space 3 left parenthesis 2 a c minus a b right parenthesis space comma space space space space space space w h e n space space space a equals b equals c equals 1

$T r a n s l a t e “ A n u m b e r d i v i d e d b y 5 m o r e t h a n 3 ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$\frac{b}{5} > 3$
	B.	$\frac{b}{5} + 3$
	C.	$\frac{b}{5} < 3$
	D.	$\frac{b}{5} \geq 3$

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : 2 x - 9 - (5 x - 10)$

	A.	$3 x - 1$
	B.	$1 - 3 x$
	C.	$3 x - 19$
	D.	$19 - 3 x$

$E v a l u a t e \frac{3 a - 2 b}{a b}, w h e n a = 2 a n d b = 3$

	A.	$N o t d e f i e n d$
	B.	$0$
	C.	$- 5$
	D.	$5$

$T w o n u m b e r s w h o s e p r o d u c t i s 1 a r e c a l l e d o p p o s i t e s .$

True

False

$S o l v e t h e e q u a t i o n : - 8 x + 7 = 15 - 8 (x + 1) i s :$

	A.	$- 7$
	B.	$7$
	C.	$ℝ$
	D.	$\emptyset$

$E v a l u a t e \frac{a b}{3 a - 2 b}, w h e n a = 2 a n d b = 3$

	A.	$6$
	B.	$- 6$
	C.	$0$
	D.	$N o t d e f i n e d$

$18 i s w h a t p e r c e n t o f 75 ?$

	A.	$0.24 %$
	B.	$\frac{25}{6}$
	C.	$\frac{25}{6} %$
	D.	$24 %$

$T r a n s l a t e “ - 4 l e s s t h a n 8 t i m e s s o m e n u m b e r ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$- 4 \leq 8 k$
	B.	$- 4 < 8 k$
	C.	$- 4 - 8 k$
	D.	$8 k + 4$

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [4 (x - 5) - 2 x] - [3 (x + 1) - 7 x]$

	1.	$4 x - 32$
	2.	$23 - 6 x$
	3.	$6 x - 23$
	4.	$32 - 4 x$

$F o r a n y r e a l n u m b e r n, t h e o p p o s i t e o f n, e x p r e s s e d a s - n .$

True

False

F o r space a n y space r e a l space n u m b e r space n comma space t h e space o p p o s i t e space o f space n comma space e x p r e s s e d space a s space minus n. space space space space space

$S o l v e t h e e q u a t i o n : 3 - 4 (x + 1) = 2 (x - 5) - 3 i s :$

	A.	$ℝ$
	B.	$x = 2$
	C.	$x = - 2$
	D.	$\emptyset$

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : 2 x - 9 - (5 x - 10)$

	A.	$1 - 3 x$
	B.	$3 x - 19$
	C.	$19 - 3 x$
	D.	$3 x - 1$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space 2 x space – space 9 space – space left parenthesis 5 x space – space 10 right parenthesis

$T h e n u m b e r 3.14 i s$

	A.	$I n t e g e r s n u m b e r$
	B.	$I r r a t i o n a l n u m b e r$
	C.	$R a t i o n a l n u m b e r$
	D.	$W h o l e n u m b e r$

$E v a l u a t e \frac{a b}{3 a - 2 b}, w h e n a = 2 a n d b = 3$

	A.	$N o t d e f i n e d$
	B.	$6$
	C.	$- 6$
	D.	$0$

E v a l u a t e space space space fraction numerator a b over denominator bold 3 a minus bold 2 b end fraction comma space space space w h e n space space a equals 2 space space a n d space space b equals 3

$T r a n s l a t e “ A n u m b e r d i v i d e d b y 5 m o r e t h a n 3 ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$\frac{b}{5} > 3$
	B.	$\frac{b}{5} < 3$
	C.	$\frac{b}{5} \geq 3$
	D.	$\frac{b}{5} + 3$

T r a n s l a t e space space “ A space n u m b e r space d i v i d e d space b y space 5 space m o r e space t h a n space 3 ” space space space t o space a n space a l g e b r a i c space e x p r e s s i o n.

$T w o n u m b e r s w h o s e p r o d u c t i s 1 a r e c a l l e d a d d i t i v e i n v e r s e s .$

True

False

T w o space n u m b e r s space w h o s e space p r o d u c t space i s space 1 space a r e space c a l l e d space a d d i t i v e space i n v e r s e s. space space

$S o l v e t h e e q u a t i o n : - 8 x + 7 = 15 - 8 (x + 1) i s :$

	A.	$- 7$
	B.	$7$
	C.	$ℝ$
	D.	$\emptyset$

S o l v e space t h e space e q u a t i o n colon space space space space space minus 8 x space plus space 7 space equals space 15 space – space 8 left parenthesis x space plus space 1 right parenthesis space space space i s colon

$E v a l u a t e - | - 3 m + 4 n |, w h e n m = 5 a n d n = 3 .$

	A.	-3
	B.	-5
	C.	3
	D.	5

E v a l u a t e space space space minus vertical line minus bold 3 m plus bold 4 n vertical line comma space space space w h e n space space m equals 5 space space a n d space space n equals 3.

$T h e s e t {1, 2, 3, 4, \dots is called . . . . . . . .$

	A.	$R a t i o n a l N u m b e r s$
	B.	$W h o l e N u m b e r s$
	C.	$N a t u r a l N u m b e r s$
	D.	$I n t e g e r s N u m b e r s$

T h e space space s e t space space left curly bracket 1 comma 2 comma 3 comma 4 comma horizontal ellipsis space space space space bold is space bold called space........

$T r a n s l a t e “ - 4 l e s s t h a n 8 t i m e s s o m e n u m b e r ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$- 4 < 8 k$
	B.	$- 4 - 8 k$
	C.	$- 4 \leq 8 k$
	D.	$8 k + 4$

T r a n s l a t e space space “ space minus 4 space l e s s space t h a n space 8 space t i m e s space s o m e space n u m b e r ” space space space t o space a n space a l g e b r a i c space e x p r e s s i o n.

$S o l v e t h e e q u a t i o n : 7 - 3 x = 6 - 3 (x + 1) i s :$

	A.	$3$
	B.	$\emptyset$
	C.	$- 3$
	D.	$ℝ$

S o l v e space t h e space e q u a t i o n colon space space space space 7 space – space 3 x space equals space 6 space – space 3 left parenthesis x space plus space 1 right parenthesis space space space i s colon space

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [4 (x y + 3) - 4 x y] - 4 (x y + 3)$

	A.	$x - 4 y$
	B.	$y - 4 x$
	C.	$- 4 x y$
	D.	$4 x y$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space left square bracket 4 left parenthesis x y space plus space 3 right parenthesis space – space 4 x y right square bracket space – 4 left parenthesis x y plus space 3 right parenthesis space space

$E v a l u a t e | - 3 s + 4 t |, w h e n s = 5 a n d t = 3 .$

	A.	3
	B.	-3
	C.	11
	D.	-11

E v a l u a t e space space space space vertical line minus bold 3 s plus bold 4 t vertical line comma space space space space space space w h e n space space s equals 5 space space a n d space space t equals 3.

$T r a n s l a t e “ S o m e n u m b e r l e s s t h a n n e g a t i v e n i n e ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$r < - 9$
	B.	$r \leq - 9$
	C.	$- 9 - r$
	D.	$r + 9$

T r a n s l a t e space space space “ space S o m e space n u m b e r space l e s s space t h a n space n e g a t i v e space n i n e space ” space space space t o space a n space a l g e b r a i c space e x p r e s s i o n. space space

$T h e r e c i p r o c a l v a l u e o f 1 i s :$

	A.	$1$
	B.	$- 1$
	C.	$ℝ$
	D.	$U n d e f i n e d$

T h e space r e c i p r o c a l space v a l u e space o f space 1 space i s colon

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [5 (x + 3) - 4 x] - 4 (x + 3)$

	A.	$3 + 3 x$
	B.	$6 x$
	C.	$3 - 3 x$
	D.	$0$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space left square bracket 5 left parenthesis x space plus space 3 right parenthesis space – space 4 x right square bracket space – 4 left parenthesis x space plus space 3 right parenthesis space space space space space space space space space

$39 i s w h a t p e r c e n t o f 260 ?$

	A.	$\frac{20}{3}$
	B.	$\frac{20}{3} %$
	C.	$15 %$
	D.	$0.15 %$

39 space i s space w h a t space p e r c e n t space o f space 260 ? space

$T w o n u m b e r s w h o s e p r o d u c t i s 1 a r e c a l l e d o p p o s i t e s .$

True

False

T w o space n u m b e r s space w h o s e space p r o d u c t space i s space 1 space a r e space c a l l e d space space o p p o s i t e s. space

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : 3 - 3 (2 x + 1) + 8 x$

	A.	$- 2 x$
	B.	$8 x$
	C.	$2 x$
	D.	$- 8 x$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space 3 space – space 3 space left parenthesis 2 x space plus space 1 right parenthesis space plus space 8 x

$S o l v e t h e e q u a t i o n : 3 - 3 (2 x + 1) + 8 x = 3 x - 3 i s :$

	A.	$x = - 3$
	B.	$x = 3$
	C.	$ℝ$
	D.	$\emptyset$

S o l v e space t h e space e q u a t i o n colon space space space space space 3 space – space 3 space left parenthesis 2 x space plus space 1 right parenthesis space plus space 8 x space equals space 3 x space – space 3 space space space i s colon space

$T h e s e t {\frac{r}{v} | r, v \in ℤ a n d v \neq 0} i s c a l l e d . . . . . . . . . . . . .$

	A.	$W h o l e N u m b e r s$
	B.	$I r r a t i o n a l N u m b e r s$
	C.	$N a t u r a l N u m b e r s$
	D.	$R a t i o n a l N u m b e r s$

T h e space s e t space space space space space left curly bracket space r over v space vertical line space r space comma space v space element of straight integer numbers space a n d space v space not equal to 0 space right curly bracket space space space i s space c a l l e d space............. space

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [4 (x + 3) - 4 x] - 4 (x + 3)$

	A.	$- 4 x$
	B.	$- 2 x$
	C.	$4 x$
	D.	$2 x$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space left square bracket 4 left parenthesis x space plus space 3 right parenthesis space – space 4 x right square bracket space – 4 left parenthesis x space plus space 3 right parenthesis space space space space space space space space space space space

$23 i s 25 % o f w h a t n u m b e r ?$

	A.	$\frac{23}{4}$
	B.	$\frac{1}{92}$
	C.	$\frac{23}{25}$
	D.	$92$

23 space i s space 25 percent sign space o f space w h a t space n u m b e r ?

$E v a l u a t e \frac{x - 2 y}{2 x y}, w h e n x = 2 a n d y = 3$

	A.	$- 3$
	B.	$\frac{1}{3}$
	C.	$\frac{- 1}{3}$
	D.	$3$

E v a l u a t e space space fraction numerator x minus 2 y over denominator 2 x y end fraction space space comma space space w h e n space space x equals 2 space space a n d space space y equals 3

$T h e n u m b e r 0.3434 . \dots i s c a l l e d \dots \dots \dots .$

	A.	$I n t e g e r s n u m b e r$
	B.	$I r r a t i o n a l n u m b e r$
	C.	$W h o l e n u m b e r$
	D.	$R a t i o n a l n u m b e r$

T h e space space n u m b e r space space 0.3434. horizontal ellipsis space space i s space space c a l l e d space horizontal ellipsis horizontal ellipsis horizontal ellipsis.

$T r a n s l a t e “ T h e s u m o f - 9 a n d a n u m b e r ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$y x + 9$
	B.	$y x - 9$
	C.	$y + 9$
	D.	$y - 9$

T r a n s l a t e space space space “ T h e space s u m space o f space minus 9 space a n d space a space n u m b e r ” space space space t o space a n space a l g e b r a i c space e x p r e s s i o n. space

$E v a l u a t e - x^{2} + {(y)}^{2}, w h e n x = 4 a n d y = 4 .$

	A.	0
	B.	32
	C.	-32
	D.	16

E v a l u a t e space space space space minus x to the power of bold 2 plus left parenthesis y right parenthesis to the power of bold 2 comma space space space space space space w h e n space space x equals 4 space space a n d space space y equals 4.

$S o l v e t h e e q u a t i o n : 2 x - 9 - (5 x - 10) = - 4 x - 9 i s :$

	A.	$x = 10$
	B.	$ℝ$
	C.	$\emptyset$
	D.	$x = - 10$

S o l v e space t h e space e q u a t i o n colon space space space space space space 2 x space – space 9 space – space left parenthesis 5 x space – space 10 right parenthesis space equals space minus 4 x space – space 9 space space space space i s colon

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [6 (x y + 3) - 4 x y] - 4 (x y + 3)$

	A.	$2 x y + 6$
	B.	$- 2 x y - 6$
	C.	$2 x y - 6$
	D.	$- 2 x y + 6$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space left square bracket 6 left parenthesis x y space plus space 3 right parenthesis space – space 4 x y right square bracket space – 4 left parenthesis x y space plus space 3 right parenthesis space space space space space space space space space space space

$T w o n u m b e r s w h o s e s u m i s 0 a r e c a l l e d r e c i p r o c a l s .$

صواب

خطأ

T w o space n u m b e r s space w h o s e space s u m space i s space 0 space a r e space c a l l e d space space r e c i p r o c a l s. space space space space space space

$T w o n u m b e r s w h o s e s u m i s 0 a r e c a l l e d o p p o s i t e s, o r a d d i t i v e i n v e r s e s .$

صواب

خطأ

T w o space n u m b e r s space w h o s e space s u m space i s space 0 space a r e space c a l l e d space o p p o s i t e s comma space o r space a d d i t i v e space i n v e r s e s. space space

$E v a l u a t e \frac{3 a + 2 b}{5 c}, w h e n a = b = 3 a n d c = 1 .$

	A.	-5
	B.	-3
	C.	3
	D.	5

E v a l u a t e space space fraction numerator bold 3 a space plus space bold 2 b over denominator bold 5 c end fraction comma space space space space w h e n space space space a equals b equals 3 space space a n d space space c equals 1.

$T r a n s l a t e “ S o m e n u m b e r m o r e t h a n n e g a t i v e n i n e ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$- s \geq 9$
	B.	$s > - 9$
	C.	$s \geq - 9$
	D.	$s - 9$

T r a n s l a t e space space space “ space space S o m e space n u m b e r space m o r e space t h a n space n e g a t i v e space n i n e space space ” space space space t o space a n space a l g e b r a i c space e x p r e s s i o n. space space

$T r a n s l a t e “ S e v e n l e s s t h a n t w i c e s o m e n u m b e r ” t o a n a l g e b r a i c e x p r e s s i o n .$

		$7 < 2 m$
		$2 m - 7$
		$7 < m n$
		$m n - 7$

T r a n s l a t e space space space “ space S e v e n space l e s s space t h a n space t w i c e space s o m e space n u m b e r space ” space space space space t o space a n space a l g e b r a i c space e x p r e s s i o n. space space

$T w o n u m b e r s w h o s e p r o d u c t i s 1 a r e c a l l e d r e c i p r o c a l s, o r m u l t i p l i c a t i v e i n v e r s e s .$

صواب

خطأ

T w o space n u m b e r s space w h o s e space p r o d u c t space i s space 1 space a r e space c a l l e d space r e c i p r o c a l s comma space o r space m u l t i p l i c a t i v e space i n v e r s e s. space

$12 i s 48 % o f w h a t n u m b e r ?$

	A.	$\frac{1}{25}$
	B.	$25$
	C.	$\frac{25}{144}$
	D.	$\frac{144}{25}$

12 space i s space 48 percent sign space o f space w h a t space n u m b e r ? space

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [2 (x - 5) + 4 x] - [5 (x - 3) - 2 x]$

	A.	$5 - 3 x$
	B.	$3 x - 5$
	C.	$3 x + 5$
	D.	$- 3 x - 5$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y space colon space space space space space left square bracket 2 left parenthesis x minus 5 right parenthesis space plus space 4 x right square bracket space – space left square bracket 5 left parenthesis x minus 3 right parenthesis minus 2 x right square bracket

$E v a l u a t e \frac{3 a - 2 b}{a b}, w h e n a = 2 a n d b = 3$

	A.	$0$
	B.	$5$
	C.	$- 5$
	D.	$N o t d e f i e n d$

E v a l u a t e space space space fraction numerator 3 a minus 2 b over denominator a b end fraction comma space space space space w h e n space space a equals 2 space space a n d space space b equals 3

$T h e r e c i p r o c a l o f a n u m b e r h a s t h e s a m e s i g n a s t h e n u m b e r i t s e l f .$

True

False

T h e space r e c i p r o c a l space o f space a space n u m b e r space h a s space t h e space s a m e space s i g n space a s space t h e space n u m b e r space i t s e l f. space space space

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [6 (x + 3) - 4 x] - 4 (x + 3)$

	A.	$6 - 2 x$
	B.	$- 2 x - 6$
	C.	$6 + 2 x$
	D.	$2 x - 6$

R e m o v e space p a r e n t h e s e s space a n d space s i m p l i f y colon space space space space space left square bracket 6 left parenthesis x space plus space 3 right parenthesis space – space 4 x right square bracket space – 4 left parenthesis x space plus space 3 right parenthesis

$T r a n s l a t e “ - 5 l e s s t h a n a n y n u m b e r ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$x + 5$
	B.	$- 5 - x$
	C.	$5 - x$
	D.	$- 5 + x$

T r a n s l a t e space space space “ space minus 5 space l e s s space t h a n space a n y space n u m b e r ” space space space t o space a n space a l g e b r a i c space e x p r e s s i o n. space space

$T h e n u m b e r 3.14 i s$

	A.	$R a t i o n a l n u m b e r$
	B.	$W h o l e n u m b e r$
	C.	$I r r a t i o n a l n u m b e r$
	D.	$I n t e g e r s n u m b e r$

T h e space n u m b e r space space space 3.14 space space i s space

$E v a l u a t e \frac{3 a + 2 b}{5 z}, W h e n a = b = z = 1 .$

	A.	1
	B.	5
	C.	Undefined
	D.	-1

E v a l u a t e space space space space space space space fraction numerator bold 3 bold italic a plus space bold 2 bold italic b over denominator bold 5 bold italic z end fraction comma space space space space space space space space space W h e n space space space space space space a equals b equals z equals 1.

$T r a n s l a t e “ S o m e n u m b e r m o r e t h a n n e g a t i v e n i n e ” t o a n a l g e b r a i c e x p r e s s i o n .$

	A.	$s - 9$
	B.	$- s \geq 9$
	C.	$s > - 9$
	D.	$s \geq - 9$

$R e m o v e p a r e n t h e s e s a n d s i m p l i f y : [4 (x - 5) - 2 x] - [3 (x + 1) - 7 x]$

	1.	$6 x - 23$
	2.	$23 - 6 x$
	3.	$4 x - 32$
	4.	$32 - 4 x$

$S o l v e t h e e q u a t i o n : 3 - 4 (x + 1) = 2 (x - 5) - 3 i s :$

	A.	$x = - 2$
	B.	$x = 2$
	C.	$\emptyset$
	D.	$ℝ$

$T h e n u m b e r π (pi) i s . . . . . . . . .$

	A.	$I r r a t i o n a l n u m b e r$
	B.	$N a t u r a l N u m b e r s$
	C.	$R a t i o n$
	D.	$I n t e g e r s n u m b e r$

$E v a l u a t e - x^{2} + {(y)}^{2}, w h e n x = 4 a n d y = 4 .$

	A.	-32
	B.	32
	C.	16
	D.	0

$18 i s w h a t p e r c e n t o f 75 ?$

	A.	$\frac{25}{6} %$
	B.	$\frac{25}{6}$
	C.	$24 %$
	D.	$0.24 %$

$18 i s w h a t p e r c e n t o f 75 ?$

	A.	$\frac{25}{6} %$
	B.	$\frac{25}{6}$
	C.	$24 %$
	D.	$0.24 %$

الكويز الاول رياضيات Quiz 1

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كتاب الصوتيات والاستماع Level 1

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