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3 years ago

Which of the following Is a binomial?A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4

Mathematics

1 answer:

zheka24 [161]3 years ago

3 0

Answer: a

Step-by-step explanation:

a is a binomial

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Can somebody explain this to me when 2du = 16xdx ???

tamaranim1 [39]

When you set $u=4x^2+4$ , you end up with the differentials $\mathrm du=8x\,\mathrm dx$ . Multiplying both sides by 2 gives $2\,\mathrm du=16x\,\mathrm dx$ .

Then the integral is

$\displaystyle\int_0^1\frac{16x}{(4x^2+4)^2}\,\mathrm dx=\int_4^8\frac2{u^2}\,\mathrm du=-\frac2u\bigg|_{u=4}^{u=8}=-2\left(\frac18-\frac14\right)=\frac14$

8 0

3 years ago

Which correctly shows how to use the GCF and the distributive property to find an expression equivalent to 24 + 44?

Serggg [28]

24 + 44 = 4(6 + 11) (Answer A)

4(12 + 22) ← 4 is not the greatest, 12 + 22 = 2(6 + 11)

6(4 + 11) ← this is 24 + 66

2(12 + 6) ← this is 24 + 24

6 0

3 years ago

Read 2 more answers

The side lengths of the following right triangle 15,20 and 25, as shown below. The altitude from the right angle splits the hypo

kompoz [17]

Answer:

$h = 12$

$x = 9$

$y= 16$

Step-by-step explanation:

Given

The attached triangle

Required

Find h, x and y

Let the base of the triangle be 15.

So, the area is:

$A = \frac{1}{2} * 15 * 20$

$i.e\ height = 20$

$A = \frac{1}{2} * 300$

$A = 150$

Let the base of the triangle be 25.

So, the area is:

$A = \frac{1}{2} * 25 * h$

$i.e\ height = h$

$A = \frac{1}{2} * 25h$

Substitute $A = 150$

$\frac{1}{2}*25h = 150$

Solve for h

$h = \frac{150 *2}{25}$

$h = 6 *2$

$h = 12$

Considering the smallest triangle

$Hypotenuse = 15$

So:

$15^2 = h^2 + x^2$

$15^2 = 12^2 + x^2$

This gives:

$15^2 - 12^2 = x^2$

$81 = x^2$

Take square roots

$9 =x$

$x = 9$

Solving for y

$x + y = 25$

$y= 25 - x$

$y= 25 - 9$

$y= 16$

7 0

2 years ago

Solve for x (-4/3) x - 6 = -26 A. −27 B. −15 C. 15 D. 27

andre [41]

$- \dfrac{4}{3} x - 6 = -26$

//Add 6 to both sides:
$- \dfrac{4}{3} x = -20$

//Multiply by -1 on both sides:
$\dfrac{4}{3} x = 20$

Multiply by 3 on both sides:
$4x = 60$

Divide by 4 on both sides:
$x = 15$

-----------------------------------------
Answer: x = 15 (Answer C)
-----------------------------------------

5 0

3 years ago

Read 2 more answers

Find the area of each figure. Round to the nearest hundredth where necessary.

Papessa [141]

Answer:

The answer to your question is Triangle's area = 520 in², Square's area = 576 in²

Step-by-step explanation:

Process

1.- Calculate the area of the triangle

-Find the length of the base using the Pythagorean theorem

c² = a² + b²

-Solve for b²

b² = c² - a²

-Substitution

b² = 37² - 35²

-Simplification

b² = 1369 - 1225

b² = 144

b = 12 in

-Find the base

base = 2(12) = 24 in

-Find the area of the triangle

Area = base x height / 2

-Substitution

Area = 24 x 35 / 2

-Simplification

Area = 420 in²

2.- Find the area of the square

Area = side x side

-Substitution

Area = 24 x 24

-Result

Area = 576 in²

3 0

3 years ago

Which of the following Is a binomial?A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4​

Which of the following Is a binomial?A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4