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2 years ago

Help picture below problem 12

Mathematics

1 answer:

Svet_ta [14]2 years ago

6 0

Answer:

Take a sleep like 25 minutes and then you will be able to answer it for yourself

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Please help me for solve x

dlinn [17]

Answer:

X =6

Step-by-step explanation:

Angles on a straight line add up to 180°

180-110=70

The 70° is the same on the angles above

70+8+17x=180

180-70=110

110-8=102

102/17=6

X=6

3 0

3 years ago

2х + Зу = 24<br> What is the x and y intercept

DochEvi [55]

Answer:

rearrange into y=mx+c

so it becomes

3y= -2x+24

y= (-2/3)x+24

substitute values for x

when x is 0

y is (-2/3)*0=0 +24 =24

for x intercept

0=(-2/3)*x+24

0-24=-2/3*x

-24/(-2/3)=x

3 0

4 years ago

About 78% of the US, population claims that they visit the dentist at least once a year. simple random sample of 200 people is s

Blababa [14]

Answer:

D) 0.78, 0.029

Step-by-step explanation:

Central Limit Theorem:

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$

About 78% of the US, population claims that they visit the dentist at least once a year.

This means that $p = 0.78$

Random sample of 200 people:

This means that $n = 200$

Mean and standard deviation of the sampling distribution:

By the Central Limit Theorem

Mean $\mu = 0.78$

Standard deviation $s = \sqrt{\frac{0.78*0.22}{200}} = 0.029$

So the correct answer is given by option D.

7 0

3 years ago

Two friends went to Best Buy and bought Pokemon cards and baseball cards. Each Pokemon card was the same price and each baseball

Inessa05 [86]

A, $1.42. i found this answer plugging in 1.42 and seeing if it would work or not

4 0

3 years ago

Write an equation in standard form of an ellipse that is 50 units high and 40 units wide. The center of the ellipse is (0,0).

Mariulka [41]

Answer:

$\frac{x^2}{400}+\frac{y^2}{625}=1$

Step-by-step explanation:

The equation of an ellipse that has its center at the origin is given by the formula:

$\frac{x^2}{b^2}+\frac{y^2}{a^2}=1$

The given ellipse is 50 units high.

This means that length of the major axis is 50.

$2a=50$

$2\implies a=25$

The ellipse is 40 units wide.

$2b=40$

$\implies b=20$

We substitute these values into the formula to get:

$\frac{x^2}{20^2}+\frac{y^2}{25^2}=1$

$\frac{x^2}{400}+\frac{y^2}{625}=1$

8 0

3 years ago