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3 years ago

Express as a trinomial. (x + 4)(x - 1)

Mathematics

1 answer:

katovenus [111]3 years ago

8 0

Answer:

x^2+3x−4

Step-by-step explanation:

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Pls help It’s due tomorrow question is in the picture

Slav-nsk [51]

Answer:

Step-by-step explanation:

Let's find the area of each of the two circles.

First Circle:

The first circle has a diameter of 10 inches. That means the radius is 5 inches. So, its area is:

$A=\pi r^2\\A=\pi (5)^2\\A=25\pi$

Second Circle:

The second circle has a diameter twice that of the first. So, the diameter is 20 inches. This means that the radius is 10 inches. Find the area:

$A=\pi r^2\\A=\pi (10)^2\\A=100\pi$

Now, find the ratio between them by dividing:

$\frac{\text{Smaller}}{\text{Larger}}=\frac{25\pi}{100\pi}$

Simplify:

$\frac{\text{Smaller}}{\text{Larger}}=\frac{1}{4}$

1/4 is the same as 1:4

So, our answer is C :)

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3 years ago

What are the missing side lengths in triangle PQR? And how did you find that answer pleaseee helppp!!

Zielflug [23.3K]

6sqrt2 for both since there equivalent

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3 years ago

Anna bakes 12 bluebblueberry muffins 20 bran muffins and 8 Apple muffins.What percent of the muffin are blueberry?

erik [133]

30% are blueberry muffins.

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2 years ago

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What the answer someone help me!!!

True [87]

Step-by-step explanation:

the answer to your question is

16/9

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3 years ago

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Find the angle θθ between the vectors v=2i+kv=2i+k, w=j−3kw=j−3k.

kaheart [24]

Hello :
v . w = | | v | | × | | w | | cos(θ) ....(1)
v(2,0,1) w(0,1,-3)

v . w = (2)(0)+(0)(1)+(1)(-3) = - 3
| | v | | = √((2)²+(0)²+(1)²) = √5
| | w | = √((0)²+(1)²+(-3)²) = √10
by (1) :
cos(θ) = (v . w ) / | | v | | × | | w | |

cos(θ) = = - 3/√50
θ =..... calculate by 2ind function ( calculator)

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3 years ago