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2 years ago

What is the product?

Mathematics

1 answer:

Fantom [35]2 years ago

8 0

B) is correct
a=-4
b=9t
(a+b)(a-b)=a^2-b^2=16-81t^2

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The figure is the net for a rectangular prism.

oksano4ka [1.4K]

Answer:

$SA=544\ cm^2$

Step-by-step explanation:

we know that

The surface area of a rectangular prism is equal to the area of its six rectangular faces

using the net

The surface area is equal to

$SA=2[(16)(6)]+2[(16)(8)]+2[(8)(6)]$

$SA=192+256+96$

$SA=544\ cm^2$

3 0

2 years ago

In B E C, F is the centroid, and AC = 12. Find A F and F C

klemol [59]

bearing in mind that the centroid in a triangle cuts each of the three medians in a 2:1 ratio.

since we know that A C = 12, let's split it in a 2:1 ratio then, cleary from the picture the larger is F C, so F C : A F is on a 2:1 ratio.

$\bf A C=A F+F C\qquad \qquad \cfrac{F C}{A F}=\cfrac{2}{1}\qquad \qquad \cfrac{2\cdot \frac{12}{2+1}}{1\cdot \frac{12}{2+1}}\implies \cfrac{2\cdot 4}{1\cdot 4}\implies \cfrac{8}{4}$

4 0

2 years ago

What is the solution of the system of equations graphed?

DochEvi [55]

Answer:

A) (-3, 5)

General Formulas and Concepts:

<u>Algebra I</u>

Solving systems of equations by graphing

Step-by-step explanation:

The solution set to any systems of equations is where the 2 lines intersect. According to the graph, we see that the 2 lines intersect at (-3, 5). Therefore, our answer is A.

3 0

2 years ago

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What is an equiangular triangle?

Sergio [31]

<span>An equiangular triangle is a triangle where all three interior angles are equal in measure.</span>

6 0

2 years ago

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How do i write a proof for this

babymother [125]

Since, the co-interior angles(55° and 125°) are supplementary(sum is 180), therefore the lines are parallel.

6 0

2 years ago