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3 years ago

Can someone tell me the answer step by step about the surface area please please really I need help

Mathematics

1 answer:

andreev551 [17]3 years ago

8 0

Surface are has a formula which is
SA=L*w+W*h+L*h

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50 POINTS

Alexxx [7]

Answer:

Step-by-step expl45

5 0

2 years ago

Need answer to finish test

PilotLPTM [1.2K]

Answer:

D 30 but im not sure i would go with D tho

Step-by-step explanation:

it might also be a but im not sure sorry

7 0

3 years ago

I did this activity right?

goblinko [34]

Answer:

Nothing seems incorrect to me I feel u are doing great keep up the outstanding work.^-^

Hoped I Have Helped Honey Have A Nice Day "Peace"

Step-by-step explanation:

6 0

3 years ago

Write the equation of the parabola that has its x-intercepts at (1+<img src="https://tex.z-dn.net/?f=%5Csqrt%7B5%7D" id="TexForm

VladimirAG [237]

Answer:

$y=2x^2-4x-8$

Step-by-step explanation:

<u>Factored form of a parabola</u>

$y=a(x-p)(x-q)$

where:

p and q are the x-intercepts.
a is some constant.

Given x-intercepts:

(1+√5, 0)
(1-√5, 0)

Therefore:

$\implies y=a(x-(1+\sqrt{5}))(x-(1-\sqrt{5}))$

$\implies y=a(x-1-\sqrt{5})(x-1+\sqrt{5})$

To find a, substitute the given point (4, 8) into the equation and solve for a:

$\implies a(4-1-\sqrt{5})(4-1+\sqrt{5})=8$

$\implies a(3-\sqrt{5})(3+\sqrt{5})=8$

$\implies4a=8$

$\implies a=2$

Therefore, the equation of the parabola in factored form is:

$\implies y=2(x-1-\sqrt{5})(x-1+\sqrt{5})$

Expand so that the equation is in standard form:

$\implies y=2(x^2-x+\sqrt{5}x-x+1-\sqrt{5}-\sqrt{5}x+\sqrt{5}-5)$

$\implies y=2(x^2-x-x+\sqrt{5}x-\sqrt{5}x+\sqrt{5}-\sqrt{5}+1-5)$

$\implies y=2(x^2-2x-4)$

$\implies y=2x^2-4x-8$

6 0

1 year ago

Classify the following triangle

s2008m [1.1K]

Answer:

B and C

Step-by-step explanation:

It has different angles and an obtuse angle.

Have a nice day!!!!!!!! :-)

5 0

3 years ago