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2 years ago

Can anyone help?....

Mathematics

2 answers:

stepan [7]2 years ago

8 0

The answer two this question is C.

You can get this answer by multiplying the two polynomials and then simplifying. See the steps below:
(4x^2 - 5)(x + 3) ---> Now multiply the two parenthesis.
4x^3 - 5x + 12x^2 - 15 ---> Arrange the numbers by decreasing exponents.
4x^3 + 12x^2 - 5x - 15

No simplifying can be done since there are no like terms.

Vlad1618 [11]2 years ago

7 0

Answer: $fg(x)=4x^3+12x^2-5x-15$

Step-by-step explanation:

Given: $f(x)=4x^2-5\text{ and } g(x)=x+3$

We know that for any function f(x) and g(x), the multiplication function (fg) (x) is given by :-

$fg(x)=f(x)g(x)$

Now, for the given functions, we have

$fg(x)=(4x^2-5)(x+3)\\\\\Rightarrow\ fg(x)=4x^2(x+3)-5(x+3)\\\\\Rightarrow\ fg(x)=4x^3+12x^2-5x-15$

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HURRY PLEASE I’ll mark you as brainliest

eduard

Answer:

-74

Step-by-step explanation:

First you use term 0, which is 6 because term 1 is 4. The slope is -2x so after 40 terms it would be -74.

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2 years ago

Three-sevenths of a number is 21. Find the number

Neporo4naja [7]

Let x = the unknown number.
Because three-sevenths of the number is 21, therefore
(3/7)x = 21

That is
(3x)/7 = 21

Multiply each side by 7.
3x = 21*7 = 147

Divide each side by 3.
x = 147/3 = 49

Answer: 49

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3 years ago

Find the product. The coefficient of the product of (-5xy2) and (-4x2y) is . The exponent of x in the product is , and the expon

valentinak56 [21]

$(-5xy^2) \times(-4x^2y)$ 

 $= (-5 \times -4) x^{1+2}y^{2+1}$ 

 $= 20 x^3 y^3$

Coefficient 20, exponent of x is 3, exponent of y is 3

6 0

2 years ago

Read 2 more answers

Please help !

Umnica [9.8K]

Given:

In the given triangle the measure of two angles are 102 degree and 28 degrees and the sides of the triangle are a, 27 cm, c.

To find:

The value of a.

Solution:

Let the given triangle be ABC, such that,

$m\angle B=28^\circ$

$m\angle C=102^\circ$

$b=27\ cm$

Using angle sum property of triangles, we get

$m\angle A+m\angle B+m\angle C=180^\circ$

$m\angle A+28^\circ+102^\circ=180^\circ$

$m\angle A=180^\circ-28^\circ-102^\circ$

$m\angle A=50^\circ$

According to the Law of Sines:

$\dfrac{\sin A}{a}=\dfrac{\sin B}{b}$

$\dfrac{\sin 50^\circ }{a}=\dfrac{\sin 28^\circ }{27}$

$\dfrac{27\times \sin 50^\circ }{\sin 28^\circ}=a$

$a\approx 44.06$

Therefore, the value of a is about 44.06 cm.

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2 years ago

What is 37.25% in simplest form of a fraction

Viktor [21]

If you have a graphing calculator, you can type 37.25/100 then that would equal 0.3725. Then you press the MATH button and select frac. This will give you 149/400

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3 years ago