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Marianna [84]
1 year ago
8

If A= [2 6] prove that (A')' = A 3 7 4 9​

Mathematics
1 answer:
Ivanshal [37]1 year ago
3 0

Answer:if A= [2 6] prove that (A')' = A

3 7

4 9​

Step-by-step explanation:

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Helppppp please will give brainlist ​
NeX [460]

Answer:

D or answer 4                   y=-5/2x+7

Step-by-step explanation:

Well we can first start of by finding the y-intercept.

Note that when x=0, you can find your y-intercept.

Knowing this, and looking at the table, 7 is the y-intercept because when y=7, x=0.

So we can eliminate choices 'a' and 'c,' or answers 1 and 3, because they have the y-intercept as -7, when it's just 7.

Please know that in the equation:

y = mx + b

y = y-coordinate or any given point

mx = slope

b = y-intercept

Now we must find slope

To find the slope we need to do:

(y2 - y1) / (x2 - x1) or rise/run

The two coordinates I choose to use is (0, 7) and (6, -8).

(-8 - 7) / (6 - 0) = -5/2

-5/2 is the slope

Finally, look for an equation that has 7 as the y-intercept and -5/2 as the slope.

Answer: D or answer 4

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3 years ago
What is 3000b+28000=2000b+36000
Romashka-Z-Leto [24]
What are you finding or solving?
7 0
3 years ago
6. A prism has bases that are equilateral triangles with sides lengths of 10 inches and a length of 30 inches.
eimsori [14]

Answer:

The volume of the prism is 1,299\ in^{3}

Step-by-step explanation:

we know that

The volume of the prism is equal to

V=BL

where

B is the area of the triangular base

L is the length of the prism

we have

L=30\ in

<em>Find the area of the base B</em>

The area of a equilateral triangle is equal to

B=\frac{1}{2}(10)^{2} sin(60\°)

B=25\sqrt{3}\ in^{2}

substitute

V=(25\sqrt{3})(30)=1,299\ in^{3}

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3 years ago
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Keith_Richards [23]

Answer:

65

Step-by-step explanation:

180-115=65 bc all the lines are parallel.

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2 years ago
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A 8 ft tall cardboard box standing next to a man casts a 20 ft shadow. If the man casts a shadow that is 15 ft long, then how ta
Nataliya [291]

Answer:

The answer is that he would be 27 ft tall

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3 years ago
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