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ratelena [41]
4 years ago
15

Please answer correctly!! Will mark brainliest!!!

Mathematics
2 answers:
ki77a [65]4 years ago
8 0

Answer:

Step-by-step explanation:

<h2>YOU WILL DO GREAT</h2>
34kurt4 years ago
8 0

Answer:

$\frac{1}{a^{12}b^8}$

Step-by-step explanation:

Considering the expression:

$\left(\frac{a^{-3}}{b^2}\right)^4$

$\frac{\left(a^{-3}\right)^4}{\left(b^2\right)^4}$

Now state the property:

$a^{-1}=\frac{1}{a^n}, a\neq 0  $

$\frac{\frac{1}{a^{12}}}{\left(b^2\right)^4}$

$\frac{\frac{1}{a^{12}}}{b^8}$

$\frac{1}{a^{12}b^8}$

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The largest jaw breaker in a store is spherical with a radius of 2 in, and sells for $4.00. A
maw [93]

Answer:

$36

Step-by-step explanation:

1. Determine the surface area of the  largest jaw breaker

Surface area of a sphere = 4πr²

4 x 3.14 x 2² = 50.24in²

2. Determine the surface area of the new jaw breaker

4 x 3.14 x 6² = 452.16 in²

3. Determine the cost per area

4/ 50.24

4. Determine the price for the new jaw breaker

4/ 50.24 x 452.16 = $36

5 0
3 years ago
Draw a line parallel to a given line at a distance of 5cm
Rus_ich [418]

Step-by-step explanation:

1.Make a line l .

2.Make a perpendicular to this line .

3.Extend the line.

4.Extend compass for 5 cm arc .

5.Place the compass on the line l at the point of perpendicular and make arc on the extended line .

6.Draw line through the point of intersection.

4 0
3 years ago
What are the odds of a person having a boy for their fourth child if the previous three children were all girls?
-BARSIC- [3]
I honestly would of have said its a  50/ 50 chance but I think it all depends on the gene.... hope this helps
8 0
4 years ago
Read 2 more answers
Solve the system by elimination.<br> -8X – 10y = 20<br> -8x – 6y = -4
In-s [12.5K]

Answer:

(5, - 6 )

Step-by-step explanation:

Given the 2 equations

- 8x - 10y = 20 → (1)

- 8x - 6y = - 4 → (2)

Multiply (2) by - 1

8x + 6y = 4 → (3)

Add (1) and (3) term by term to eliminate the x- term, that is

- 4y = 24 ( divide both sides by - 4 )

y = - 6

Substitute y = - 6 into either of the 2 equations and solve for x

Substituting into (1)

- 8x - 10(- 6) = 20

- 8x + 60 = 20 ( subtract 60 from both sides )

- 8x = - 40 ( divide both sides by - 8 )

x = 5

solution is (5, - 6 )

6 0
3 years ago
Can some one please help me
Lesechka [4]
Let's say you only have three points: A, B, and C.
The first step is asking you to construct a parallel of AB through C. You should start by placing a ruler connecting points A and B, then use a set square and rest it on the ruler that's connecting points A and B. Slide the set square over the ruler so it meets point C. Measure at which distance is point C. Then slide the set square to one or another side of the ruler and mark a new point with the same distance of point C from AB. Now connect points C and the new one by tracing a line that passes on both points. That line will be parallel to AB.
Now repeat the process for the other parallels. By the end, you should have three lines that when extend cross each other and form a triangle.
6 0
4 years ago
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