2 years ago

1.3b+7.8−3.2b write your anwser here

Mathematics

1 answer:

vovangra [49]2 years ago

3 0

Answer:

-19b + 78

Step-by-step explanation:

We multiply by 10 to make it easier

13b+78-32b

-19b + 78

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How many solutions does the following equation have? 0 = -6|9v - 7|

Lunna [17]

Answer: One solution

Step-by-step explanation:

V=7/9

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3 years ago

How much more area does a large pizza with a 12 in. diameter have than a small pizza with an 8 in. diameter? Round your answer t

ivolga24 [154]

Answer: About 63 in²

Step-by-step explanation:

Area of circle = π · r²

r = radius length
π ≈ 3.14

Area of large pizza:

$\pi *r^{2} =3.14*6^{2} =3.14*36=113.04$

Area of small pizza:

$\pi *r^{2} =3.14*4^{2} =3.14*16=50.24$

Difference in area:

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2 years ago

The options for the first blank are 45, 240, 270, and 315

Schach [20]

Answer:

The solutions are 270° and 450°.

Step-by-step explanation:

Given:

$cos\frac{x}{2} =\frac{\sqrt{2} }{2}$ .

So, the second and third quadrant angle to be calculated.

$cos\frac{x}{2}=135$

$=x=270$ °.

And, $cos\frac{x}{2}=225$

$=x=450$ °

Therefore, the solutions are 270° and 450°.

5 0

3 years ago

3. To make green paint, mix 3 parts of blue to 4 parts of yellow. Does the table below show the same ratio

expeople1 [14]

No
3÷4 = .75
4÷5 = .8
5÷6 ≈ .8333
6÷7 ≈ .8571
These ratios are not the same.

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3 years ago

Solve the literal equation for y, 2x-2y=5

sukhopar [10]

Answer:

y=-5/2+x

Step-by-step explanation:

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