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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

2 answers:

Degger [83]3 years ago

5 0

Answer: b) 15.7

Step-by-step explanation:

Look at the z-table (below) to find 0.2500

Notice that the value is not on the table but is between 0.2486 and 0.2517 which are located on the z-table at 0.67 and 0.68

The given value is closer to 0.2486 so use 0.67 as the z-score.

Now, let's find the x-value using the formula: $z=\dfrac{x-\mu}{\sigma}$

$-0.67=\dfrac{x-20}{6.4}\\\\\\\text{Multiply both sides by 6.4:}\\-4.288=x-20\\\\\\\text{Add 20 to both sides:}\\\large\boxed{15.712} = x$

Oksanka [162]3 years ago

4 0

Answer:

24.3 cm

Step-by-step explanation: dude trust me. just took the test

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Answer: d
The two smallest sides have to add up to the largest one

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3 years ago

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Reil [10]

Answer:

$y=2x-2$

Step-by-step explanation:

Because the coordinates for x = 0 is (0,-2) so that's your y- intercept.

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3 years ago

This high school stadium contains a track that surrounds a soccer field. The soccer field is 100 yards long and 70 yards

elena-14-01-66 [18.8K]

Answer:

do 70x70=4,900 than do 100 x100=10,000 than add them to gether and you get 10,4900

Step-by-step explanation:

theres 2 sides not just one

5 0

3 years ago

Read 2 more answers

What is the value of n? A. 59 B. 95 C. 23 D. 36

Advocard [28]

Answer:

B. 95 degrees

Step-by-step explanation:

So in this situation we have to find out the value of the angles in the triangle.

To start off we know that 121 is the value of the top outside angle, right.

And the line it is sitting on is flat.

So the angle on the other side should be able to add up with 121 and make 180 degrees.

So 180 minis 121 is 59 degrees.

Now for the other angle, let’s do 144.

So we know that the inside angle has to add up with the outside to make 180 so 180 minus 144 is 36.

Now we know that all the angles inside a triangle should add up it be 180.

So when adding 36 and 59 degrees we get 95.

So the inside angle in the left side has to add with 95 to be 180.

So 180 minus 95 is 85 degrees.

Now that we know the inside angle we have to find out the outside angle.

So we know that 85 has to add up with the outside angle to be 180.

So we do 180 minus 85 which gets us 95 degrees.

4 0

4 years ago

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Please help again forgot everything

attashe74 [19]

Answer:

Step-by-step explanation:

to find a proportion they must equal each other

8/4 in its simplest form is just 2

to make r/3 = 2 r must be 6

6/3 is 2

8 0

2 years ago