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bezimeni [28]
3 years ago
6

~Help me with this please I will mark as BRANLIEST and give you 55 POINTS! (If you answer correctly)

Mathematics
1 answer:
kolezko [41]3 years ago
5 0

Answer:

y=50x+75

Step-by-step explanation:

When writing a linear equation from a graph, we need to find two things: the y-intercept (what y is when x is 0) and the slope.

First, let us find the y-intercept.

To do this, we can just look at the graph. When x=0, y=75, so 75 is our y-intercept, which is also known as b.

To find the slope of this line, we will need to look at two points

We already know that (0,75) is a point. From the graph, we can see that (1,125) is also a point on this line.

Now, we can find the slope of this line using the following formula m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{125-75}{1-0} \\\\m=\frac{50}{1} \\\\m=50

Now that we have both the y-intercept and slope, we can put them together in the form of y=mx+b

y=50x+75

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Answer:

associative property

Step-by-step explanation:

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3 years ago
In the diagram below, ST is parallel to PQ. If ST is 4 more than PS,SR = 12, and PQ = 15, find the length of PS. Figures are not
Tpy6a [65]

Since segments ST and PQ are parallel, triangles SRT and PRQ are similar due to the AAA postulate. In general, the ratio between the corresponding sides of two similar triangles is constant; therefore,

\frac{SR}{PR}=\frac{RT}{RQ}=\frac{TS}{QP}

Furthermore,

PS=PR-RS

Finding PR and RS,

\begin{gathered} ST=4+PS \\ SR=12 \\ PQ=15 \end{gathered}

Then,

\frac{12}{PR}=\frac{TS}{15}\begin{gathered} \Rightarrow\frac{12}{PR}=\frac{4+PS}{15} \\ \Rightarrow\frac{12}{PS+12}=\frac{4+PS}{15} \end{gathered}

Solving for PS,

\begin{gathered} 12\cdot15=(PS+12)(PS+4) \\ \Rightarrow180=PS^2+16PS+48 \end{gathered}

Solve the quadratic equation in terms of PS, as shown below

\begin{gathered} \Rightarrow PS^2+16PS-132=0 \\ \Rightarrow PS=\frac{-16\pm\sqrt[]{16^2-4(-132)}}{2}=\frac{-16\pm28}{2} \\ \Rightarrow PS=-22,6 \end{gathered}

And PS is a segment; therefore, it has to be positive.

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3 0
1 year ago
Jeffrey set up chairs for a meeting.
Kazeer [188]

Answer:

9x + 3 = 7x + 19

Step-by-step explanation:

Given that,

Jeffrey set up chairs for a meeting.

He arranged the chairs in 9 equal  rows but had 3 chairs left over.

Let x be the number of chairs. So,

9x+3 .....(1)

Then he arranged the chairs in 7 equal rows  but had 19 chairs left over. So,

7x+19 ......(2)

From equation (1) and (2),

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9x-7x = 19-3

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Hence, the correct option is (b).

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2 years ago
A triangle has an area of 56 square units it's height is 14 units
kobusy [5.1K]
The formula for the area of a triangle is 1/2*b*h=a.
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3 years ago
Place the numbers 40 and 100 into the proportion. (Whole)(percents) ----------- (Part) what goes where?
Ksivusya [100]

Answer:

Step-by-step explanation:

Hard to tell how the question should read.

40/100 = 40%

4 0
3 years ago
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