3 years ago

7 x 9 = (1 x 10)-(7 x A)

Mathematics

1 answer:

Ganezh [65]3 years ago

4 0

X^9 is the answer to this problem.

You might be interested in

Rewrite the following phrase as a mathematical expression: twice a number increased by eighteen. 2n + 18 18n + 2 2 + 18 2(18n)

VladimirAG [237]

I am not sure about the last two phrases, but here's what I think.
2(n+18)
18(2+n)

3 0

3 years ago

Read 2 more answers

Select all that apply

liraira [26]

A right triangle can also be an isosceles triangle.

8 0

4 years ago

What’s the answer to this question?

m_a_m_a [10]

Answer:

Quadratic

Step-by-step explanation:

The leading term has a coefficient of 2 (-7 $x^{2}$ )

7 0

4 years ago

Use the data from problem:

navik [9.2K]

Answer:

a) Sample mean: 48.71

Sample median: 48.3

Sample variance: 5.41

Sample standard deviation: 2.37

Step-by-step explanation:

a) Sample mean:

$\bar{X}=\frac{1}{N} \sum X_i=\frac{1}{80}*3896.9=48.71$

Sample median: M=48.3

Note: I order the data increasingly and take the value N / 2 = 40. In this way there are 39 values above and 39 values below the median.

Sample variance:

$s^2=\frac{1}{N-1}\sum (X_i-\bar X)^2 =(\frac{1}{80-1})*427.74=5.41$

Sample standard deviation

$s=\sqrt{s^2}=\sqrt{5.41}=2.37$

5 0

3 years ago

5.066rounded to the nearest hundredth

vladimir2022 [97]

If you round 5.066 to the nearest hundredth it would be 5.07

5 0

3 years ago

Read 2 more answers