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Leona [35]
2 years ago
10

Look at the figure, PQRS. Find the values of x and y.

Mathematics
1 answer:
bekas [8.4K]2 years ago
4 0

Answer:

C. x = 5, y = 7

Step-by-step explanation:

Diagonals of a parallelogram bisects each other. Therefore:

2x = y + 3, and,

x + 2 = y

✔️To find the value of x, substitute y = (x + 2) in 2x = y + 3.

Thus:

2x = (x + 2) + 3

2x = x + 2 + 3

2x = x + 5

Subtract x from each side

2x - x = 5

x = 5

✔️To find y, substitute x = 5 in x + 2 = y.

Thus:

5 + 2 = y

7 = y

y = 7

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Based on data collected from its production processes, Crosstiles Inc. determines that the breaking strength of its most popular
alexandr1967 [171]

Answer:

16% of its popular porcelain tile will have breaking strengths greater than 412.5 pounds per square inch.

Step-by-step explanation:

We are given that the breaking strength of its most popular porcelain tile is normally distributed with a mean of 400 pounds per square inch and a the standard deviation of 12.5 pounds per square inch.

Let X = <u><em>the breaking strength of its most popular porcelain tile</em></u>

SO, X ~ Normal(\mu=400,\sigma^{2}=12.5^{2})

The z score probability distribution for normal distribution is given by;

                        Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean breaking strength of porcelain tile = 400 pounds per square inch

           \sigma = standard deviation = 12.5 pounds per square inch

Now, probability that the popular porcelain tile will have breaking strengths greater than 412.5 pounds per square inch is given by = P(X > 412.5)

        P(X > 412.5) = P( \frac{X-\mu}{\sigma} > \frac{412.5-400}{12.5} ) = P(Z > 1) = 1 - P(Z \leq 1)

                                                               = 1 - 0.84 = <u>0.16</u>

Therefore, 16% of its popular porcelain tile will have breaking strengths greater than 412.5 pounds per square inch.

7 0
2 years ago
Free 100 plus Brainliest to the first person
Ivanshal [37]

Answer:

thank you!!

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
2 times 2 and three forths
Mrrafil [7]
2 *       2 and 3/4.

2 and 3/4 =   (4*2 + 3) / 4 = (8 + 3) / 4 =   11 / 4

2 * 11/4 =   22 / 4 =   5 and 2/4

= 5 and 2/4  or   5 and 1/2 or   5.5

Hope this helps.
6 0
3 years ago
- 8y + 9x = -5<br> 8y + 7x = -75
IRINA_888 [86]

Answer:

x = -5 , y = -5

Step-by-step explanation:

- 8y + 9x = -5

8y + 7x = -75

__________

0 + 16x = - 80

x = -80 / 16

x = -5

- 8y + 9x = -5

-8y + 9(-5) = -5

-8y - 45 = -5

-8y = -5 + 45

-8y = 40

y = 40/-8

y = -5

hope it helps!

8 0
3 years ago
THe equation of the graph line is 2x-3y=12 what is the x-intercept of the graph
katrin2010 [14]

2x-3y=12


Make y substitute 0


2x-3(0)=12


2x= 12


X= 12-2


X= 10


X-intercept is 10

5 0
2 years ago
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