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Mariulka [41]
2 years ago
9

2.5x=-10 what is the answer

Mathematics
2 answers:
Nadya [2.5K]2 years ago
7 0

Answer:x=-4

Step-by-step explanation:

2.5x=-10

You will divide both sides by 2.5

2.5x/2.5= -10/2.5

x=-4

Maru [420]2 years ago
4 0

Answer: -4

Step-by-step explanation:

2.5x = -10

1. divide -10 by 2.5

2. x = -4

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(-30(-7))-(210(-3))=
Vlad [161]

Answer:

840

Step-by-step explanation:

(−30)(−7) − (210)(−3)

=210 − (210)(−3)

=210 − (−630)

=840

Hope this helps!

brainliest?

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2 years ago
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Help! This is due today and I'm stuck on this problem.
Varvara68 [4.7K]

Answer:

280.6 m^2

Step-by-step explanation:

<u>find the length of each side:</u>

you're only given h = 9 m

the formula for h is  h=\frac{\sqrt{3} }{2} *a, where a is a side length of the hexagon

plug h in:

9=\frac{\sqrt{3}}{2}*a\\\\a=9*\frac{2}{\sqrt{3}}\\\\

a ≈ 10.392 m

<u>now find the area of a triangle:</u>

1/2 (10.392)(9) = 46.764 m^2

multiply that by 6 and you get 280.584 ≈ 280.6 m^2

you can also use the regular hexagon area formula instead of finding the individual area and multiplying by 6: \frac{3\sqrt{3} }{2} *a^2

7 0
2 years ago
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UnansweredIf Measure of angle a is 155°, what is Measure of angle c?
Gnom [1K]

Answer: 155°

because ∠a and ∠c are 2 opposing angles => m∠a = m∠c = 155°

Step-by-step explanation:

8 0
3 years ago
PPPPLLLLLLSSSS I NEEED HELP
Nuetrik [128]

Answer:

x=63

Step-by-step explanation:

The two interior angles add up the the exterior angle, so 51+x+12=2x. From there, solve to get x=63. Hope this helped!

7 0
2 years ago
Which are correct representations of the inequality –3(2x – 5) &lt; 5(2 – x)? Check all that apply.
k0ka [10]

Answer:

C. -6x+15

A. First Picture

Step-by-step explanation:

We are given the inequality, -3(2x-5).

On simplifying the inequality, we get,

-3(2x-5)

i.e. -6x+15

i.e. -x

i.e. x>5

So, we get the correct representations of the inequality are,

C. -6x+15

A. the First Picture

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2 years ago
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