4 years ago

What is the answer to this question and how do I get the answer

Mathematics

1 answer:

Svetlanka [38]4 years ago

7 0

I think it is something

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What is the radius and diameter of the following circle?

postnew [5]

Answer:

diameter= 13cm

radius= 6.5 cm

Step-by-step explanation:

please give brainliest! ty!

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3 years ago

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Can someone please help me without using a link?

USPshnik [31]

Answer:

The answer is Prism T (C)

Step-by-step explanation:

R = 24

S = 25

T = 30

U = 28

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

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An ice cream cone has a radius of 3 inches and a height of 6 inches. Which measurement is the closest to the volume in cubic inc

fomenos

56.52 cubic inches. Volume equals pi times the radius squared times the height divided by three.

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What are the solutions to the equation 2x^2 + 9x =5

Maksim231197 [3]

Answer:

$\displaystyle -5 \ and \ \frac{1}{2}$

Step-by-step explanation:

$2x^2 + 9x =5$

we have to move 5 in the other side with a different sign, to get a 2 grade ecuation

$2x^2 + 9x -5= 0$

now we know

a=2

b=9

c=-5

we have to find delta

$\boxed{\Delta=b^2-4ac} \\\\ \Delta=9^2-4\cdot2\cdot(-5)\\ \Delta=81+40 \\ \Delta=121$

and now we have to use the formula to find the root square

$\displaystyle \boxed{ X_{1,2}=\frac{-b\pm\sqrt{\Delta} }{2a} }$

$\displaystyle X_1=\frac{-b-\sqrt{\Delta} }{2a} =\frac{-9-11}{2\cdot2}=\frac{-20}{4} =-5$

$\displaystyle X_2=\frac{-b+\sqrt{\Delta} }{2a} =\frac{-9+\sqrt{121} }{2\cdot4} =\frac{-9+11}{4} =\frac{2}{4} =\frac{1}{2}$

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3 years ago

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Solve for angles a and b

balu736 [363]

Answer:

b=42

a=81

Step-by-step explanation:

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