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3 years ago

FIND THE SLOPE OF THE LINE

Mathematics

1 answer:

schepotkina [342]3 years ago

3 0

Answer:

4/1

Step-by-step explanation:

To get from one dot to the next, you go up by four and to the right by one, making the slope 4/1

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In the diagram below, OP is circumscribed about quadrilateral ABCD. What is

elena-s [515]

Answer:

The value of X=180-98

=82

6 0

3 years ago

A study was conducted to investigate the relationship between maternal smoking during pregnancy and the presence of congenital m

Pachacha [2.7K]

Answer:

a) In the explanation.

b) P=0.09714

c) P=0.0866

d) p=0.208

Step-by-step explanation:

a) The sampling distribution will have this properties:

1 - The sampling distribution of a proportion is equal to the binomial distribution.

2 - The mean of the sampling distribution will be equal to the proportion of the population (0.328).

$\mu=\pi=0.328$

3 - The standard deviation will be equal to the square root of the product of the proportion and its complementary, divided by the sample size.

$\sigma_s=\sqrt{\pi(1-\pi)/n}=\sqrt{0.328*(1-0.328)/25}=0.094$

B) The fraction with sample proportion of 0.45 or higher is

$z=(p-\pi)/\sigma=(0.45-0.328)/0.094=1.298\\\\P(p\geq0.45)=P(z\geq 1.298)=0.09714$

C) The fraction with sample proportion of 0.20 or lower is

$z=(p-\pi)/\sigma=(0.2-0.328)/0.094=-1.362\\\\P(p\leq0.2)=P(z\geq -1.362)=0.0866$

D) The value of p that cuts off the lower 10% of the distribution corresponds to z=-1.28.

Then we have

$z=(p-\pi)/\sigma\\\\p=\pi+z\sigma=0.328+(-1.28)*0.094=0.328-0.120=0.208$

7 0

3 years ago

a flagpole casts a shadow 160 feet long. At the same time, a boy standing nearby who is 5 feet tall casts a shadow 20 feet long.

Veronika [31]

Answer:

The flagpole is 40 feet tall.

Step-by-step explanation:

So, we are looking for the height of the flagpole. Let h represent this height.

Boy - 5 feet in height and casts a 20-foot shadow

Flag pole - h feet in height and casts a 160-foot shadow

The relationship looks something like this:

5 : 20 :: h : 160

$\frac{5}{20} =\frac{h}{160}$

Now, we can cross multiply to find h!

$20h=800\\h=40$

So, the flagpole is 40 feet tall

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3 0

3 years ago

Read 2 more answers

What is the equation of the axis of symmetry for the parabola y equals start fraction two over three end fraction left parenthes

BabaBlast [244]

So hmm check the picture below

keep in mind, the equation is already in vertex form, and thus, the vertex is clearly at 2 , -5

anyhow, notice the axis of symmetry, the red line

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4 years ago

Once again super confused

Katena32 [7]

Well, you see the yellow colored "face" Think of it as area. So we got a smaller square next to it right...just ignore it and look at the yellow square. So, how do you find the area? Length times width right? So, since this cube has 4 inches all over it, what do you think you have to do if a square has equal sides/measurements. You multiply 4*4, which is 16! NOTE: It is NOT asking for volume! Hope this helps!

7 0

3 years ago