1 year ago

Simplify the expression and show work 4(3x-2)-7(x+5)

Mathematics

1 answer:

Gennadij [26K]1 year ago

7 0

Answer:

5x - 43

Explanation:

Given the below expression;

$4\left(3x-2\right)-7\left(x+5\right)$

To simplify the above, we'll go ahead and use the numbers outside the parentheses to multiply the ones inside to clear the parentheses as seen below;

$\begin{gathered} 12x-8-7x-35 \\ =12x-7x-8-35 \\ =5x-43 \end{gathered}$

So the answer is 5x - 43

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AleksandrR [38]

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4 years ago

Determine the slope and y-intercept of the line.<br> y = -69x - 346

MatroZZZ [7]

Answer:

Step-by-step explanation:

Compare y = mx + b to

y = -69x - 346.

Here the slope, m, equals -69 and the y-intercept, b, equals -346 (Answer C)

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4 years ago

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Komok [63]

Answer:

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3 years ago

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Answer:

Step-by-step explanation:

just divide 265 by 7

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3 years ago

What is the volume of the square pyramid with base edges 32 mm and slant height 34 mm?

leonid [27]

Answer:

V = 10,240mm^3

Step-by-step explanation:

The volume of pyramid is given by the following formula:

$V=\frac{1}{3}bh$ (1)

b: base of the pyramid = (32mm)^2

h: height

Thus, it is necessary to find the value of h, by using the Pitagoras's theorem, one half of the base and the slant height (which forms a rectangle triangle with h):

$h=\sqrt{(34)^2-(16)^2}=30mm$

by replacing in (1) you obtain:

$V=\frac{1}{3}(32mm)^2(30mm)=10,240\ mm^3$

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