All categories

2 years ago

Solve for g g + (-7) = 21

Mathematics

2 answers:

Talja [164]2 years ago

5 0

Answer:

28 = g g.

Step-by-step explanation:

Try solving 21 + 7. This equation will get you the answer. 28 + (-7) = 21.

hope this helped.

Finger [1]2 years ago

3 0

Answer:

g=28

Step-by-step explanation:

g + (-7) = 21

g-7 = 21

g= 21+7

g=28

You might be interested in

Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Ugo [173]

Answer:

$s^2 = 0.01$

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$

First, we calculate the mean

$\overline x = \frac{\sum x}{n}$

$\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}$

$\overline x = \frac{7.4}{4}$

$\overline x = 1.85$

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$ becomes

$s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}$

$s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}$

$s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}$

$s^2 = \frac{0.03}{3}$

$s^2 = 0.01$

<em>Hence, the variance is 0.01</em>

5 0

2 years ago

3² • 9³ = [ ]<br>solve

RideAnS [48]

Answer:

3⁸ or 6561

Step-by-step explanation:

First, let's look at PEMDAS - Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.

There are no parentheses, so let's solve the exponents.

3² • 9³

3² = 9

9³ = 729

Your expression is:

9 • 729

Now let's multiply.

= 6561

This number can also be expressed with exponents.

Since 9 = 3², 9³ = 3²⁽³⁾

Now your expression is:

3² • 3²⁽³⁾

First, solve the exponents by multiplying.

3² • 3⁶

When you multiply two expressions with exponents that have the same base (3), you add the exponents.

3² • 3⁶ = 3⁽²⁺⁶⁾ = 3⁸

3⁸ also equals 6561.

Your answer is 3⁸ or 6561.

Hope this helps!

4 0

2 years ago

Ms Feheley buys 9 bottles of eye of Newt for the same price, and also a new couldron for $9.45. She spent $118.89. How much did

scoundrel [369]

See picture for answer and solution steps.

4 0

3 years ago

Read 2 more answers

Which algebraic expression best represents the following verbal

kap26 [50]

Answer: I think it is 4+$p

Step-by-step explanation:

6 0

2 years ago

Can someone please help me with this?

NARA [144]

The answer is 9 because if you find the two side lengths and find the area of the square then divide it by 2 it equals 9

5 0

3 years ago

Read 2 more answers