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2 years ago

#3 PLEASE HELP WITH QUESTION. BRAINLIEST + 10 POINTS!!!!!! :D

Mathematics

1 answer:

Dimas [21]2 years ago

8 0

I think it is the first one! When you plug in -7 as ^an, it follows the sequence #1.
Example: a1 = 7 an = 2 + an

you would do this:

first term = 7, second = 7+2 = 9, third = 9+2 = 11, ..........

Get it?

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I NEED HELP! I WILL MARK BRANLIEST! I need help with 11 & 12

antiseptic1488 [7]

Answer:

The answer is 17 and no

Step-by-step explanation:

#11 The room is a cube so...

cube root the volume 4913

³√4913=17

The length of the room is 17 feet.

#12

Square root 121

√121=11

Since the car is 13 feet the car will not fit in the garage which is 11ft.

6 0

2 years ago

How would the sum of cubes formula be used to factor x3y3 + 343? Explain the process. Do not write the factorization.

Svetllana [295]

Answer:

Given : Expression - $x^3y^3+343$

To find : How would the sum of cubes formula be used to factor given expression? Explain the process. Do not write the factorization.

Solution :

The formula of sum of cubes is,

$a^3+b^3=\left(a+b\right)\left(a^2-ab+b^2\right)$

First we convert the given expression in $a^3+b^3$

$x^3y^3+343$

Apply exponent rule : $a^mb^m=(ab)^m$

$x^3y^3=(xy)^3$

Rewrite $343=7^3$

Therefore, $x^3y^3+343$ could be written as $=\left(xy\right)^3+7^3$

On comparison with the formula,

a=xy , b=7

$\left(xy\right)^3+7^3=(xy+7)(xy^2-xy(7)+7^2)$

$\left(xy\right)^3+7^3=(xy+7)((xy)^2-7xy+49)$

5 0

2 years ago

Read 2 more answers

What are two numbers that have a product of 12 and a sum of 5

pashok25 [27]

Answer:

there are no two numbers that have a product of 12 and a sum of 5 make sure that the question is correct

yo can find two numbers that have a product of 12 and a sum of 7 the answer is 3 and 4 .

Step-by-step explanation:

6 0

2 years ago

Two in 1 more points

cluponka [151]

Answer:

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Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

28)A regression equation is obtained for a collection of paired data. It is found that the total variation is 24.488, the explai

Doss [256]

Answer: The coefficient of determination = 0.6291

Step-by-step explanation:

Given: Total variation is 24.488, the explained variation is 15.405, and the unexplained variation is 9.083.

The coefficient of determination is computed as:

$\text{ coefficient of determination} =\frac{\text{explained variation }}{\text{total variation}}$

Substituting given values, we get

$\text{coefficient of determination} =\frac{15.405}{24.488}$

$=0.6291$

Therefore, the coefficient of determination = 0.6291

7 0

1 year ago