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3 years ago

Photo. 10 points! Thank you!

Mathematics

1 answer:

Gnesinka [82]3 years ago

3 0

The correct answer is B. (3x - 4)(3x + 4)

In order to find this we first can note that the term in the front and the term in the back are both perfect squares. Since the middle term is cancelled out, we can use the difference of two squares to factor.

a^2 - b^2 = (a - b)(a + b)

Since the square root of 9x^2 is 3x, we can use that for a. Since the square root of 16 is 4, we can use that b.

(3x - 4)(3x + 4)

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Answer to 5 and 6 please?

yKpoI14uk [10]

Answer:

5. ST 6. AT

Step-by-step explanation:

For a product to be divisible by a number, one of the factors must be that number. This can be achieved by one of the consecutive numbers being that number, or a multiple of that number.

5. 4 x 5 x 6 = 120 which is divisible by 5

1 x 2 x 3 = 6 which is not divisible by 5

6. 1 x 2 x 3 = 6 which is divisible by 6

2 x 3 x 4 = 24 which is divisible by 6

3 x 4 x 5 = 60 which is divisible by 6

4 x 5 x 6 = 120 which is divisible by 6

And now we will just repeat ourselves.

7 0

3 years ago

I got 160 but it is not an answer choice, am I wrong?

Sergio039 [100]

Yes, it is 120 degrees

5 0

3 years ago

Please explain I don’t know how to factor odd numbers

goldenfox [79]

This should be the answer

3 0

3 years ago

The height of the Eiffel Tower is 1050 feet. From the top, the angle of depression to a soccer ball on the ground is 20 degrees.

mihalych1998 [28]

Since the angle of depression from the Eiffel tower is congruent to the angle of elevation from the soccer ball, the angle of elevation from the soccer field is 20°

Now, we can use the trigonometric function tangent to find the distance from the soccer ball to the base of the Eiffel Tower:
 $tan( \alpha )= \frac{opposite.side}{adjacent.side}$
$tan(20)= \frac{1050}{a}$
$a= \frac{1050}{tan(20)}$
$a=2884.85$

We can conclude that the distance from the soccer ball to the base of the Eiffel Tower is 2884.85 feet.

3 0

3 years ago

(x2+x)(x2-2x-3) is equal to?

PtichkaEL [24]

Answer:

x^4-x^3-5x^2-3x

Step-by-step explanation

Use the FOIL Method or factor.

3 0

3 years ago