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2 years ago

Number 8 please! It's urgent

Mathematics

1 answer:

kykrilka [37]2 years ago

3 0

T chart but thats all i can think of

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The area of a square is 36 square centimeters. A rectangle has the same perimeter as the square. The length of the rectangle is

Irina-Kira [14]

Answer:32sq cm

Step-by-step explanation:

area of square 36

sides are then 6 by 6

6+6+6+6=24

24 can be made into 4+4+8+8 8 is twice as much as 4 8x4=32

4 0

2 years ago

I’m another normally distributed test score is 80 and the standard deviations is 10. How common are values in the less than 60?

lord [1]

Answer:

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

Step-by-step explanation:

If the mean μ = 80 and the standard deviation σ = 10, then we need to find the probability that an X value is less than 60.

Then we find

$P(X$

To find this probability we use the Z statistic.

$Z = \frac{X- \mu}{\sigma}$

$P(\frac{X- \mu}{\sigma}$

$P(Z$

This is the same as

$P(Z> 2)$

We look for this value in the table for the normal distribution of right queue and we have:

$P(X 2) = 0.02275$

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

6 0

2 years ago

Marias bank account balance tripled and then lost 35.50 and is now 13 dollars.

lys-0071 [83]

Answer:

$145.5

Step-by-step explanation:

7 0

3 years ago

Write the quadratic equation whose roots are six and -2 and who’s leading coefficient is 3 use the letter X to represent the var

Artist 52 [7]

Answer:

$3X^{2} - 12X - 36 = 0$

Step-by-step explanation:

6 and - 2 are the only two solutions to the required quadratic equation.

So, if the variable is represented by X then (X - 6) and (X + 2) will be the only two factors of the polynomial function.

Therefore, the equation is

(X - 6)(X + 2) = 0

⇒ $X^{2} - 4X - 12 = 0$

If the leading coefficient of the equation is 3 then we can write the equation as $3X^{2} - 12X - 36 = 0$ (Answer)

6 0

3 years ago

Helppp!!!!

svetlana [45]

Answer:

1. he took 8/12 for lunch, but 1/12 is left

2. she ate 2/5, but there's 4/15 left of the whole cake that is untouched

Step-by-step explanation:

i hope this helps, the wording is a little confusing to me tho

3 0

3 years ago

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