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Naily [24]
3 years ago
8

Please help me doing 50 points for this since it's complicated ​

Mathematics
1 answer:
loris [4]3 years ago
4 0
Um wow that was rude didn’t even help^ but to find DE you’re gonna look at CD because that is the same height to DE which is 7
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HELPPPP PLEASEEE IM BEGGING SOMEONE PLEASE PLEASE HELP
pychu [463]

Given:

The figure of a rhombus QRST.

To find:

A. The value of x.

B. The measure of angle RQP.

Solution:

A. We need to find the value of x.

We know that the diagonals of a rhombus are perpendicular bisectors. It means the angles on the intersection of diagonals are right angles.

m\angle RPS=90^\circ                       [Right angle]

(5x+15)^\circ=90^\circ

(5x+15)=90

5x=90-15

5x=75

Divide both sides by 5.

x=\dfrac{75}{5}

x=15

Therefore, the value of x is 15.

B. We need to find the measure of angle RQP.

From the given figure, it is clear that

m\angle RQP=(2x+3)^\circ

Putting x=15, we get

m\angle RQP=(2(15)+3)^\circ

m\angle RQP=(30+3)^\circ

m\angle RQP=33^\circ

Therefore, the measure of angle RQP is 33 degrees.

8 0
3 years ago
Section J in an arena has 20 rows each row has 15 seats all tickets cost $18 each if I'll seats are sold how much money will the
12345 [234]
20 rows * 15 seats per row=300 seats in section J
300 seat in Section J * $18 per ticket= $5,400 in revenue
6 0
4 years ago
The school store sells binders for $5 and notebooks for $4. The store needs to sell $80 worth of these two items combined each w
lorasvet [3.4K]

Answer:

<h2>80=5x+4y</h2>

Step-by-step explanation:

Step one:

given

let binders be x

and notebooks be y

let the total sale be T

the cost of binder is $5 each

the cost of notebook is $4 each.

the total sales expected is $80

step two:

the linear model for the total sales is given as

T=x+y

using the given data, the situation can be represented linearly as

80=5x+4y

Therefore the linear expression for the total sale is 80=5x+4y

4 0
3 years ago
Read 2 more answers
Which is not true <br><br> 10 + 9 = 7 + 12<br> 10 = 10<br> 10 - 4 = 3 + 3<br><br> 10 = 19 - 11
Natasha2012 [34]

Answer:

10=19-11

Step-by-step explanation:

that answer is false because 19-11 = 8 not 10

3 0
3 years ago
Read 2 more answers
The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. if one such class is r
rodikova [14]
The distribution is uniform for 50 ≤ x ≤ 52.
where x =  minutes per class.

The probability P(x < 50.6) is the shaded portion of the distribution.
Its value is
(50.6 - 50)/(52 - 50) = 0.3

Answer:
The probability is  0.3 or 30%

7 0
4 years ago
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