Whats the value of x????

Mathematics

2 answers:

Serjik [45]3 years ago

8 0

Answer:

X = 23

Step-by-step explanation:

oppsosite angles are equal so the brackets equal 90 degrees like the right angle opposite.

90-21 = 69

69 / 3 = 23

x = 23

ludmilkaskok [199]3 years ago

4 0

Answer:

Step-by-step explanation:

The equation on the left will equal to 90 due to it being congruent to the angle with the square. Therefore, make the equation out to be 3x+21=90 and subtract 21 from both sides and that will give you 69. Divide 69 by three which will leave you with x=23

You might be interested in

Which table represents a linear function

lesya692 [45]

Answer: B

Step-by-step explanation:

B is the only one of the tables that goes up with a order

3 0

3 years ago

The quantity 4 minus x, divided by 3

rjkz [21]

(4-fx)/3 or (fx-4)/3 i think

4 0

3 years ago

Choose all the fractions that are in simplest form. 4/26 8/21 6/19 9/10 10/22

dimulka [17.4K]

4/26 can be simplified by 2. So, this is not the answer.
8/21 cannot be simplified. So, it is one of the answers.
6/19 cannot be simplified. So, it is one of the answers.
9/10 cannot be simplified. So, it is one of the answers.
10/22 can be simplified by 2. So, this is not the answer.

So, the fractions in simplest forms are 8/21, 6/19, and 9/10.

3 0

3 years ago

Simplify 3(2x+5)-4(2x-7)

Sati [7]

For this you need to expand the brackets first:
3(2x+5)-4(2x-7) = 6x+15-8x-28
And then now you need to add and simplify:
6x+15-8x-28 —> 6x-8x= -2x
15-28= -13
So that leaves
-2x - 13

4 0

4 years ago

Matilda was curious if sample interquartile range (IQR) was an unbiased estimator of population IQR. She placed ping pong balls

Amiraneli [1.4K]

Answer: Sample IQR appears to be a biased estimator since it consistently underestimated the population IQR.

Step-by-step explanation: Checked by Khan Academy

6 0

3 years ago