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Irina-Kira [14]
3 years ago
5

WITH GRAPH

Mathematics
1 answer:
Alexus [3.1K]3 years ago
6 0

Answer:

(0, -2) (Answer B)

Step-by-step explanation:

Recall that the y-axis represents x = 0.  The blue line crosses (intercepts) the y-axis when x = 0.  The corresponding y-coordinate is -2.  Thus, the y-intercept is (0, -2), or just -2.

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Plz I need help I don’t want to fail if u know it plz answer thx
vagabundo [1.1K]

Answer:

13

Step-by-step explanation:

5+4+3+1=13

we got that from the sum of the number of runners in the different mile distances for the runners.

7 0
3 years ago
Read 2 more answers
A zookeeper weighed an African elephant to be 9 × 103 pounds and an African lion to be 4 × 102 pounds. How many times greater is
amm1812

Answer:

The African Elephant is 2.27 times heavier than a African Lion.

Step-by-step explanation:

9 × 103 pounds = 927E.

4 × 102 pounds = 408L.

4 0
3 years ago
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Pls help <br> Please write down the step by step of how to do it.. thanks a lot
Sliva [168]

Answer:

a. 29

b. 9.1

Step-by-step explanation:

General = The perimeter is all the sides added togther.

a. x is given to you, so you just add all the numbers.

b. Now the perimeter is given, but not x. So add the numbers you can see. That would be 9+6.5+4.7= 20.2

So something + 20.2 has to equal 29.3

29.3 - 20.2 = 9.1.

I did not answer c. because I'm not very confident that my answer would be right. With my explainaion I hope you can figure it out easily enough. Good Luck!

8 0
3 years ago
The scores of fourth grade students on a mathematics achievement test follow a normal distribution with a mean of 75 and standar
mamaluj [8]

Answer:

The appropriate solution is:

(a) 0.1056

(b) 0

(c) 0.9544

Step-by-step explanation:

The given values are:

Mean,

\mu = 75

Standard deviation,

\sigma = 4

(a)

⇒  P(x>80)=1-(x

                     =1-P[\frac{x-\mu}{\sigma}

                     =1-P[\frac{x-\mu}{\sigma}

                     =1-P(z

By using the table, we get

                     =1-0.8944

                     =0.1056

(b)

According to the question, the values are:

n = 64

\mu_\bar{x} = 75

Now,

⇒  \sigma_\bar{x} = \frac{\sigma}{\sqrt{n} }

         = \frac{4}{\sqrt{64} }

         = \frac{4}{8}

         = 0.5

⇒  P(\bar {x} >80 ) = 1 - P(\bar x

                      =1 - P[\frac{(\bar x-\mu_\bar x)}{\sigma \bar x} < \frac{80-75}{0.5}  ]

                      =1-P(z

By using the table, we get

                      =1-1

                      =0

(c)

As we know,

⇒ \sigma_\bar x = \frac{\sigma}{\sqrt{n} }

        = \frac{4}{\sqrt{64} }

        = \frac{4}{8}

        = 0.5

then,

= P(74< \bar x

= P[\frac{74-75}{0.5} < \frac{\bar x-\mu \bar x}{\sigma \bar x} < \frac{76-75}{0.5} ]

= P(-2

= P(z

By using the table, we get

= 0.9772-0.0228

= 0.9544

7 0
3 years ago
The curtis car traveled an average of 21 miles per gallon of gas. At that rate, how far could the car travel on a full tank of 2
LenaWriter [7]
(21 miles/gallon) x (21 gallons) = 21 x 21 = 441 miles
6 0
4 years ago
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