3 years ago

Need help I dont know what to do

Mathematics

1 answer:

melomori [17]3 years ago

6 0

5(x+7)=75
x=8

30=3(4x-2)
x=3

5(2x-3)=3(4x-7)
x=-18

-60=5(2x+10)
x=-11

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Z 1 t = [?]√ X = Z 16

LiRa [457]

Answer: $8\sqrt{5}$

Step-by-step explanation:

By the geometric mean theorem,

$\frac{y}{16}=\frac{4}{y}\\\\y^{2}=64\\\\y=8$

So, by the Pythagorean theorem,

$8^2 + 16^2 = x^2\\\\320=x^2\\\\x=\boxed{8\sqrt{5}}$

3 0

2 years ago

Please solve this ASAP.y=x+6

alexdok [17]

Y=x+6

0=x+6

Solution: x=-6

Hope that helps!

6 0

3 years ago

Factorize x2+x-42....please how do I do it

just olya [345]

${\huge {\mathfrak {Answer :-}}}$

✨x^2 + x - 42

= x^2 + 7x - 6x - 42

= x(x + 7) - 6(x + 7)

= (x + 7)(x - 6).

Done.. ✔️

4 0

3 years ago

Mariam has 126 pieces of chocolate and 16 pieces of hard candy. Her sister has

pentagon [3]

Answer:

The answer is 213.

Step-by-step explanation:

The question states "how many pieces of chocolate." Not "How much candy and chocolate in total." Therefore all I have to do is 126 (Mariams chocolate count) + 87 (Her sisters choclate count).

Good luck, I hope this helped!!

6 0

3 years ago

8) What is the y-intercept of the parabola?

kaheart [24]

Answer:

y - intercept = 4

Step-by-step explanation:

I'm not completely sure but I believe this should be right.

8 0

3 years ago

Need help I dont know what to do​

Need help I dont know what to do