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s2008m [1.1K]
3 years ago
15

What must be the value of x?

Mathematics
2 answers:
tangare [24]3 years ago
7 0
Type the question out
MA_775_DIABLO [31]3 years ago
5 0

Answer: 25.0

Step-by-step explanation:

In the given figure ST is a diameter of the Circle.

The central angle subtended by a diameter in a circle is 180°.

Then, According to the given figure , we have

(2x+8)^{\circ}+(3x-14)^{\circ}+(3x-14)^{\circ}=180^{\circ}\\\\\Rightarrow\ 2x+8+3x-14+3x-14=180\\\\\Rightarrow\ 8x-20=180\\\\\Rightarrow\ 8x=180+20\\\\\Rightarrow\ 8x=200\\\\\Rightarrow\ x=\dfrac{200}{8}\\\\\Rightarrow\ x==25

Hence, the value of x is 25.0.

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Tires are rotating at a rate of 35 revolutions per minute. Find the angular speed of the tires in radians per minute.
Alexxx [7]

Answer:

35poi

Step-by-step explanation:

7 0
3 years ago
Suppose that a sample of size 100 is to be drawn from a population with standard deviation L0. a. What is the probability that t
NARA [144]

Answer:

The probability that the sample mean will lie within 2 values of μ is 0.9544.

Step-by-step explanation:

Here

  • the sample size is given as 100
  • the standard deviation is 10

The probability that the sample mean lies with 2 of the value of μ is given as

                                            P(| \bar{X}-\mu|

Here converting the values in z form gives

P(-2

Substituting values

P(-2

From z table

P(z\leq 2)=0.9772\\P(z\leq -2)=0.0228\\P(-2\leq z\leq 2)=P(z\leq 2)-P(z\leq -2)\\P(-2\leq z\leq 2)=0.9772-0.0228\\P(-2\leq z\leq 2)=0.9544\\

So the probability that the sample mean  will lie within 2 values of μ is 0.9544.

5 0
3 years ago
What is the slope of the line?
Oduvanchick [21]

Answer:

rise over run

Step-by-step explanation:

how much it goes up over how far it goes to the side

4 0
3 years ago
Find the value of Q. No links plz.
Crank

Answer:

(rounded)17.2=Q

Step-by-step explanation:

Q= 13/cos41

4 0
2 years ago
There are two numbers. The first number is 4/9 of the second number. If the difference between the two numbers is 375, find the
erica [24]
X and y
x=4/9 times y

y is bigger so
y-x=375
x=4/9y
y-4/9y=375
5/9y=375
times both sides by 9/5
y=675

the 2nd number is 675
3 0
3 years ago
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