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gladu [14]
3 years ago
11

Rewrite 2/5 book over 1/2 as a unit rate

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
6 0

Answer: 3/7

Step-by-step explanation:

I really think that’s it

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(-4, -1) and (8, -9) find the slope.
Anvisha [2.4K]

Answer:

m=-\frac{2}{3}

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Tyree is determining the distance of a segment whose endpoints are A(–4, –2) and B(–7, –7).
PilotLPTM [1.2K]

Answer:

Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.

Step-by-step explanation:

to find the distance between two point A(-4, -2) and B(-7, -7) we use the following distance formula

d=\sqrt{(x_{2} -x_{1})^2+(y_{2}-y_{1}  )^2 \\\\

x1=-4, x2=-7

y1=-2, y2=-7

so,

d=\sqrt{(-7-(-4))^2+(-7-(-2)  )^2\\}\\\\d=\sqrt{(-7+4)^2+(-7+2)^2 }\\\\d=\sqrt{(-3)^2+(-5)^2 }\\\\\\\\d=\sqrt{9+25}\\ \\d=\sqrt{34}

4 0
4 years ago
What is the equation of a line that has a slope of -2 and goes through the origin?
UkoKoshka [18]

Answer:y = -2x


Step-by-step explanation:

slope-intercept form is as follows

y = mx + b

You are given that the slope is -2 and since the line passes through the origin, there is no y-intercept

So you just plug in the slope

y = -2x + b

And since there is no y-intercept, you can take that out.

y = -2x

7 0
3 years ago
Triangles ABC and RST are similar. Find ST.
Bezzdna [24]

Set up;

(15^2)(CB) = (7.5^2)/(ST)

(15^2)/(5) = (7.5^2)/(ST)

Cross-multiply to find ST.

3 0
3 years ago
Read 2 more answers
Please Help <br> Write a system of linear Inequalities to represent each graph.
docker41 [41]

Answer:

\left\{\begin{array}{l}5x-y-7\le 0\\2x+3y-9\ge 0\end{array}\right.

Step-by-step explanation:

1. Blue region. The boundary blue line passes through the points (0,-7) and (3,8), then its equation is

\dfrac{x-0}{3-0}=\dfrac{y+7}{8+7},\\ \\15x=3(y+7),\\ \\5x=y+7,\\ \\5x-y-7=0.

This line is solid, so the sign for the inequality should be with the notion "or equal to".

From the diagram you can see that the origin belongs to the blue region, then its coordinates satisfy the inequality. Thus,

5x-y-7\le 0.

2. Green region. The boundary green line passes through the points (6,-1) and (0,3), then its equation is

\dfrac{x-0}{6-0}=\dfrac{y-3}{-1-3},\\ \\-4x=6(y-3),\\ \\-2x=3y-9,\\ \\2x+3y-9=0.

This line is solid, so the sign for the inequality also should be with the notion "or equal to".

From the diagram you can see that the origin doesn't belong to the blue region, then its coordinates satisfy the inequality. Thus,

2x+3y-9\ge 0.

3. The system of linear inequalities that represents these graphs is

\left\{\begin{array}{l}5x-y-7\le 0\\2x+3y-9\ge 0\end{array}\right.

6 0
3 years ago
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