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miss Akunina [59]

3 years ago

12

Please help me with this

1 answer:

AysviL [449]3 years ago

4 0

Answer:

Step-by-step explanation:

Slope is (80,20)(120,30) is A 1/4

(80,20) 20 is 1/4 of 80

(120,30) 30 is 1/4 of 120

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7)<br> Find the distance between the points B(-2, 14) and C(3, 8) to the nearest tenth.

RoseWind [281]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ B(\stackrel{x_1}{-2}~,~\stackrel{y_1}{14})\qquad C(\stackrel{x_2}{3}~,~\stackrel{y_2}{8})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ BC=\sqrt{[3-(-2)]^2+[8-14]^2}\implies BC=\sqrt{(3+2)^2+(8-14)^2} \\\\\\ BC=\sqrt{25+36}\implies BC=\sqrt{61}\implies \stackrel{\textit{rounded up}}{BC=7.8}$

8 0

3 years ago

In Mrs. Hu’s classroom, 4/5 of the students have a dog as a pet. Of the students who have a dog as a pet, 2/3 also have a cat as

Vlad1618 [11]

Answer:

24 students

Find 4/5 of 45 students, which is 36 students, these have dogs
Find 2/3 of 36 students, which is 24 students, these also have cats

3 0

3 years ago

The scale of the map is 1 inch = 12 miles. The actual distance from Liberty to West Quall is 72 miles and it is 6 inches on the

fgiga [73]

6•12= 72 4•12=48 if each inch equals 12 miles then you times the number of inches by the miles per inch

3 0

3 years ago

What is the domain and range for the following function and its inverse? f(x) = -x + 5

iren2701 [21]

Answer:

Domain: $\mathbb{R}$

Inverse: $f^{-1}(x) = -x + 5$

Step-by-step explanation:

Since this is a linear function, the domain and range is simply the set of real numbers.

The inverse is obtain by switching the places of x and y, then solving for y.

Here,

y = -x + 5

So switching x and y,

x = -y + 5

Solving for y again,

y = -x + 5

Thus,

$f^{-1}(x) = -x + 5$

5 0

4 years ago

Read 2 more answers

What is the value of x? (X+40)

ozzi

-40

Step-by-step explanation:

at the moment your equation is x+40=0

you move the forty to the other side by subtraction and you get x= -40

7 0

3 years ago

Read 2 more answers