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3 years ago

Help, im not really understanding this

Mathematics

1 answer:

Mice21 [21]3 years ago

5 0

Steps:

1-29f^2/d^4/2f^2= 58f^2/d^4

All i did in step one was simplify D variables then multiplied 29f^2 and 2f^2 together to get 58f^2

d5/58f^4

Answer is A

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). A construction

charle [14.2K]

Answer:

$y=\frac{11}{20}x+6$

Step-by-step explanation:

Given:

Two points are given

x = number of minutes

y = length of the lin

$(x_{1},y_{1} )$ ⇒ (0, 6)

$(x_{2},y_{2} )$ ⇒ (20, 17)

We need to find the equation that represents the relationship between x, y.

Solution:

Using slope formula to find the slope of the equation of the line.

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute $(x_{1},y_{1} )$ = (0, 6) and $(x_{2},y_{2} )$ = (20, 17) in above equation.

$m=\frac{17-6}{20-0}\\m=\frac{11}{20}$

So, slope of the line $m = \frac{11}{20}$

Using point slope formula.

$(y-y_{1})=m(x-x_{1})$ ------------(1)

Where, m = slope of the line

Substitute $(x_{1},y_{1} )$ ⇒ (0, 6) and $m = \frac{11}{20}$ in equation 1.

$(y-6)=\frac{11}{20} (x-0)$

$y-6=\frac{11}{20}x$

Add 6 both side of the equation.

$y-6+6=\frac{11}{20}x+6$

$y=\frac{11}{20}x+6$

Therefore, the equation that represents the relationship between x and y is written as:

$y=\frac{11}{20}x+6$

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4 years ago

Determining the Scale Factor of a Dilation Consider the dilation of pentagon ABCDE by a scale factor of If AB = 12, then A'B' A&

barxatty [35]

<h3>Answer:</h3>

<u>If AB = 12units, then</u>

A'B' = 1/2 × 12 = 6units.

<u>If C'D' = 5units, then</u>

CD = 2 × 5 = 10units.

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3 years ago

A fifteen-foot tree growing in a fence row is used as a fence post, to which barbed wire is stapled at a height of five feet. Ye

Tanya [424]

Answer:

The fence will still be five feet high because the lengthening of the tree occurs at the apical meristem

Step-by-step explanation:

This is a simple and quick question to solve

years later after the tree is now thirty feet high, The barbed wire has been initially stapled at a height of five feet.

However a tree increases from its apical meristem therefore the barbed wire fence will still remain at that same height of five feet high.

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3 years ago

Evaluate (x^-2y^0)/(x^3y^-2) when x = 2 and y = 5. a. 25/2 b. 25/32 c. 50

sasho [114]

The answer is B. 25/32

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4 years ago

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Given a function f(x)=|x+1|-|x -2|

White raven [17]

Answer:

Step-by-step explanation:

$f(x)=/x+1/-/x-2/\\a=/x+1/-/x-2/\\\text{square both sides}\\a^{2}={(x+1)}^{2}+{(x-2)}^{2}-2(x+1)(x-2)\\a^{2}=x^{2}+2x+1+x^{2}-4x+4-2x^{2}+2x+4\\a^{2}=9\\a=\sqrt{9}\\a=+3\text{ or }-3$

$\text{if }a \in \{-3, 3\},\text{the number of solutions is 2}$

$\text{if }a \in \{-\infty, -3\}\bigcup\{\infty, 3\},\text{it is just like saying from infinity to infinity, which is still 2}$

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3 years ago

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