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4 years ago

CAN SOMEBODY HELP ME??? giving brainliest!!! AREA!

Mathematics

2 answers:

Nikitich [7]4 years ago

8 0

Answer:

Second option. "Sue wants to cover the lid of a box with paper. How much paper should she buy?"

Explanation:

The first option relies upon volume.

The last two options relies on side lengths.

The second option is relies on area because you have to calculate the area of the lid to know how much paper can be used to cover it.

Leviafan [203]4 years ago

5 0

The answer to this question is most definitely letter B. Have fun!

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The scale factor of the scale drawing of a mirror to the actual mirror is

klio [65]

Answer:

Step-by-step explanation:

It’d a

8 0

3 years ago

Find the slope of the line.<br> 9x+y=9

Serggg [28]

Answer: -9/1

Step-by-step explanation: you want to get x and y on opposite sides so you subtract 9x and that gives you y=-9x+9 because the nine on the right side doesn’t have a negative in front of it so you know it’s positive. Your slope is whatever comes before the x so since it’s -9 that means it’s -9/1

6 0

3 years ago

What is the sum of a geometric series Sn=a+ar+ar2+ar3+…+arn-2+arn-1?

algol13

Answer:

$Sn= \frac{a(1-r^n)}{1-r}$

Step-by-step explanation:

A geometric sequence is a sequence such that any element after the first is obtained by multiplying the preceding element by a constant called the common ratio which is denoted by r. The common ratio (r) is obtained by dividing any term by the preceding term.

from the given expression

the given data are

first term a1= $a$

second term a2= $ar$

third term a3= $ar^2$

the common ratio is expressed as $r=\frac{a2}{a1}$ = $\frac{ar}{a} = r$

Sum of Terms in a Geometric Progression

Finding the sum of terms in a geometric progression is easily obtained by applying the formulas:

$Sn= \frac{a1(1-r^n)}{1-r}$

nth partial sum of a geometric sequence substituting the values of a1=a and the common ratio= r we have

$Sn= \frac{a(1-r^n)}{1-r}$

4 0

3 years ago

(1.3t3 + 0.4t2 – 24t) – (0.6t2 + 8 – 18t)

lorasvet [3.4K]

To solve this problem you must apply the proccedure shown below:
1. You have that the the polynomial being subtracted is 0.6t²+8-18t, therefore, <span> to find the additive inverse of the polynomial, you must multiply it by -1, as following:
</span>(0.6t²+8-18t)
(-1)(0.6t²+8-18t)
2. Therefore, you obtain the following result:
-0.6t²-8+18t
Then, tas you can see, the answer is -0.6t²-8+18t.

5 0

3 years ago

2) What is the slope of a line perpendicular to the line y = 2x – 3 ?

-BARSIC- [3]

Answer:

The correct answer is c.

7 0

3 years ago

Read 2 more answers