3 years ago

Hi, please answer this with some proof. Thank you.

Mathematics

2 answers:

Reika [66]3 years ago

3 0

it would be 10square units hope this helps

sasho [114]3 years ago

3 0

1/2* b*h

Is the equation you want to use

Use the most legible side being line PR

Line PR is 4 units long.

Then the height from point Q to the center of line PR which is 3 units

Full in the equation

1/2*4*3 which will get you 6 as the area

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43% of 300 is what number

Stells [14]

129
Find 10% (30) then times by 4 to find 40% (120)
Find 1% (3) then times by 3 to find 3% (9)
Add the 40% to the 3% (120 + 9)
= 129

8 0

4 years ago

7. If A = 2x + 3 and B = x^2 - 5x + 1, what is the value of A-5B?

taurus [48]

Answer:

$\huge \boxed{ \boxed{ \tt - 5 {x}^{2} + 27 x- 2}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

algebra
PEMDAS

<h3>given:</h3>

A=2x+3
B=x²-5x+1

A-5B

<h3>let's solve:</h3>

$step - 1 : define$

A-5B=2x+3-5(x²-5x+1)

$step - 2 : solve$

distribute -5 to the parentheses:2x+3-5x²+25x-5
rewrite:-5x²+2x+25x-5+3
combine like terms:-5x²+27x-2

and

we are done

7 0

3 years ago

Which of the following represents the sentence shown? “Twice a number, n, decreased by six is fourteen.”

Fed [463]

Twice the number n will be expressed as 2n. So, that will be in our final answer. In order to decrease the number by 6, we will subtract 6. So there will be a - 6 in our final answer. Together, this is 2n - 6, and that is the same as the second option. So, the second option is the correct one.

8 0

3 years ago

How do we do this out?

mars1129 [50]

$\dfrac{ {2x}^{2} + 7x + 6 }{x + 2} \\ \\ = \dfrac{(2x + 3)(x + 2)}{x + 2} \\ \\ = 2x + 3$

Answer : 2x + 3

Hope this helps. - M

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4 years ago

What is the equation of the line?

gizmo_the_mogwai [7]

undefined

y=undefined

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3 years ago