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WITCHER [35]
3 years ago
6

Demarco wants to find the angle measures of this parallelogram. He knows that the first step is to find the value of x. Which of

these equations will result in the correct value of x?
A. x + 15 = 6x + 4

B. 7x − 19 + 2x − 8 = 180

C. 7x − 19 = x + 15

D. 6x + 4 + 7x − 19 = 180

Mathematics
1 answer:
Debora [2.8K]3 years ago
4 0
The answer is B. You had to check the work in the calculator after you showed the work. Two answers gave you whole numbers , then when you plug it in only one of them solved to 180 correctly

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Given the endpoint (-9,3) and (1,8) partition the segment into the ratio 2:3<br>​
Sindrei [870]

Answer:

P = (-5,5)

Step-by-step explanation:

Let the segments be A and B

A = (-9,3)

B = (1,8)

m:n = 2:3

Required

Determine the endpoints after it is divided into ratios.

<em>Let the point be represented with P</em>

The formula to use is:

P = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})

Where

A = (-9,3)  ----- (x_1,y_1)

B = (1,8) ------ (x_2,y_2)

So:

P = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})

P = (\frac{2 * 1 + 3 * -9}{2 + 3},\frac{2 * 8 + 3 * 3}{2 + 3})

P = (\frac{-25}{5},\frac{25}{5})

P = (-5,5)

6 0
3 years ago
Natalie was given a 30 question test. For each correct question she answered, she earned 2 points. For every incorrect answer sh
RideAnS [48]
T<span>he number of questions Natalie answered incorrectly.</span>
8 0
3 years ago
The probability of passing the math class of Professor Jones is 64%, the probability of passing Professor Smith's physics class
alexgriva [62]

Answer:

The probability of using one or the other is 36%

Step-by-step explanation:

For solving this problem it is easy if we see it in a ven diagram, for this first we are going to name the initial conditions with some variables:

Probability of passing Professor Jones math class = 64% =0,64

P(J) = 0.64

Probabiliry of passing Professor Smith's physics class = 32% =0.32

P(S) = 0.32

Probability of passing both is = 30% = 0.30

P(JnS) = 0.30 (Is is an intersection so it is in the middle of the ven diagram

We need to know which is the probability of pasing one or the other for this we need to take out the probability of passing both for this we have to add the probability of passing  Professor Jones math class with the probabiliry of passing Professor Smith's physics class and substract the probability of passing both for each one:

P(JuS) = (P(J) - P(JnS)) + (P(S) - P(JnS)) = (0.64 - 0.30) + (0.32 - 0.30) = 0.34 + 0.02 = 0.36 = 36%

If you check the ven diagram you can see that if we add all what is in red we will have the probability of passing Professor Jones math class and if we add all what is in blue we wiill have the probability of passing Professor Smith's physics class, and if we add just what is in each corner we will get the same value that is the probabilty of passsing one or the other.

5 0
3 years ago
the equation y=1.25x represents the cost (y) to hit (x) granola bars at the snack shop. The table shows the cost of granola bars
Alla [95]

Answer:

snack shop

Step-by-step explanation:

3 0
3 years ago
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4x - 4 - 8y + 8 - 5x + 1 =
SashulF [63]
-x-8y+5

Hope this helps, we have same name btw
3 0
3 years ago
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