2 years ago

How do i write proofs like this?

Mathematics

1 answer:

kirill115 [55]2 years ago

7 0

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Decide which of the two points lies on the graph of the line <br>2x+y=10<br>A.(4,3)<br>B.(-4,18)

allochka39001 [22]

Answer:

Step-by-step explanation:

when you substitute 4 in x and 3 in y, your result are 11 no 10

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3 years ago

The pressure of a man sitting on a surface with an area of 24 square meters is 15Pa calculate the force exerted by the man

pogonyaev

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Step-by-step explanation:

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3 years ago

Find the equivalent expression of 3+2(2p+4t)

NISA [10]

Remember to follow PEMDAS, and to only combine terms with like variables.

First, distribute the 2 to all terms within the parenthesis:

2(2p + 4t) = 2(2p) + 2(4t) = 4p + 8t

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3 years ago

What is the value of x?<br> Please show the steps

nordsb [41]

Let D be the endpoint of the angle bisector opposite A on lying on side BC. The angle bisector theorem states that the ratio of BD to CD is equal to the ratio of AB to AC. In this case, you have

$\dfrac{2x-1}{3x}=\dfrac9{15}$

(This is the same equation that you have, it's just rearranged.)

Multiply both sides by $3x$ and 15.

$15\times3x\times\dfrac{2x-1}{3x}=15\times3x\times\dfrac9{15}$
$15(2x-1)=3x\times9$

Now you can solve for $x$ .

$30x-15=27x$
$3x=15$
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3 years ago

Please help with this question! Thank you :)

UkoKoshka [18]

Answer:

D. 116

Step-by-step explanation:

$V=(\frac{1}{3})\pi r^{2}h$

V = (1/3)π(4)²(6.9)

V = 36.8π

V ≈ 115.55

<em>Note: You will NEVER use slant height to calculate the area, only to calculate the normal height if unknown. In this problem, we did not use it at all so try not to get confused!</em>

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<h2>BRAINLIEST please if this helped!</h2>

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2 years ago