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3 years ago

Are you smart enough to answer

Mathematics

1 answer:

amid [387]3 years ago

6 0

Answer:

I believe that the first answer is A and the second answer is c I'm not that smart but I have hope that it's correct

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Select the correct answer.

malfutka [58]

Answer:

Step-by-step explanation:

x - 4 squared provides 2 real zeros that are the same. These two are not distinct.

The other two come from x^2 - 7x + 10 which has a discriminate of

sqrt(7^2 - 4*1*10) = sqrt(9) = +/- 3 leading to something real and different.

6 0

3 years ago

How can you rewrite 3(2-b) using the distributive property?

77julia77 [94]

3x2 x -3b
6-3b
Hope this helps

5 0

3 years ago

Read 2 more answers

The total surface area of a hemisphere is 45 <img src="https://tex.z-dn.net/?f=%5Cpi%5Cp" id="TexFormula1" title="\pi\p" alt=

rjkz [21]

Answer:

The volume of the hemisphere

V = 121.33086 cubic centimeter

Step-by-step explanation:

Step(i):-

Given that the total surface area of a hemisphere = 45π cm²

The total surface area of a hemisphere = 3π r²

Equating

3π r² = 45π

$r^{2} = \frac{45}{3} =15$

r = $\sqrt{15} = 3.87$

The radius of the sphere 'r' = 3.87

Step(ii):-

The volume of the hemisphere

$V = \frac{2}{3} \pi r^{3}$

$V = \frac{2}{3} \pi (3.87)^{3}$

we know that π = 3.14

$V = \frac{2}{3} (3.14) (3.87)^{3}$

V = 121.33086 cubic centimeter

7 0

3 years ago

What is the equation of the circle shown in the graph? 6 9 12 36

Naddika [18.5K]

You need to add a picture in order for others to understand what you are referring to.

4 0

3 years ago

Help me expand Expand 2a(a+7)

Evgen [1.6K]

Answer:

$2a^2+14a$

Step-by-step explanation:

$2a*a = 2a^2$

$2a*7=14a$

Add them up and thats your answer

7 0

3 years ago