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2 years ago

Need help I really do pls my going to get a f and I don’t want to repeat

Mathematics

1 answer:

timofeeve [1]2 years ago

7 0

1. -2<2 2. -4> -5. -20<20. -7>-8. -10<-1. 50>-100

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What is the image of (7, -3) after a reflection over the x-axis?

telo118 [61]

Answer:(7,3)

Step-by-step explanation:

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2 years ago

(28 POINTS)

cestrela7 [59]

Answer:

(a) $-\sqrt{10}y$

(b) $-\sqrt{3}y$

Step-by-step explanation:

(a) $\sqrt{10y^{2}}$ can also be written as $\sqrt{10}$ x $\sqrt{y^{2}}$

the $\sqrt{y^{2}}$ = ± y

Therefore :

$\sqrt{10y^{2}}$ = ± $\sqrt{10}y$

since it was given that y < 0 , then the factor will be $-\sqrt{10}y$

(b) $\sqrt{3y^{2}}$ can also be written as : $\sqrt{3}$ x $\sqrt{y^{2}}$

Therefore , one of the factor is $-\sqrt{3}y$

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2 years ago

Given that <br> x<br> = 7.7 m and <br> θ<br> = 52°, work out AC rounded to 3 SF.

Helen [10]

Answer:

The answer is 12.5cm

Step-by-step explanation:

cos 52= 7.7/AC

AC= 7.7/ cos 52

AC= 12.5

8 0

2 years ago

5 years ago, the age of a man was 7 times the age of his son. After five years, the age of the man will be 3 times the age of hi

Feliz [49]

Answer:

10 years

40 years

Step-by-step explanation:

let present ag e of son=x

5 years ago age of son=x-5

5 years ago age of man=7(x-5)=7x-35

present age of man=7x-35+5=7x-30

after 5 years

age of son=x+5

age of man=7x-30+5=7x-25

also 7x-25=3(x+5)

7x-25=3x+15

7x-3x=15+25

4x=40

x=10

age of son=10 years

age of man=7*10-30=70-30=40 years

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3 years ago

GIVING BRAINLIST!!! SHORT QUESTION PLS ANSWER

SVEN [57.7K]

Answer:

Terms:4x, -2x

Coefficients:4, 2

Constant:3

7 0

2 years ago