I don’t really know the answer I should be easy

Answer:

a)(5m+3n)^3 b)(4a-3b)^3

Step-by-step explanation:

a)125m^3+27n^3+225m^2 n+135mn^2

Use the binomial cube formula, a^3+3a^2

b+3ab^2+b^3=(a+b)^3, where a=5m and b=3n.

(5m+3n)^3

b)64a^3-144a^2 b+108ab^2-27b^3

Use the binomial cube formula, p^3-3p^2q+3pq^2-q^3=(p-q)^3, where p=4a and q=3b.

(4a-3b)^3

Answer:

D. x² = 576 + 7²

Step-by-step explanation:

i got this correct on my homework :)

Answer:

x = 2[tex]\sqrt{5}[/tex]

Step-by-step explanation:

Since the 2 legs are congruent, both 6 then the triangle is isosceles.

The line from the vertex to the base is a perpendicular bisector, dividing the base into 2 parts of 4 units.

Using Pythagoras' identity in one of the right triangles.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 4² = 6²

x² + 16 = 36 ( subtract 16 from both sides )

x² = 20 ( take the square root of both sides )

x = [tex]\sqrt{20}[/tex] = [tex]\sqrt{4(5)}[/tex] = 2[tex]\sqrt{5}[/tex]

Answer:

Part(A): The expression which represents the number of hours Matthew played soccer in a full week is [tex]5h + 6.5[/tex]

Part(B): the expression models her purchase is [tex]35.79-3b[/tex].

Step-by-step explanation:

Consider the provided information.

Part(A):

Matthew plays soccer for h hours per day for five days and he played a soccer tournament for a total of 6.5 hours.

So the required expression is: [tex]5h + 6.5[/tex]

Where 5h represents time spent in 5 days and 6.5 is the hours of the soccer tournament.

Part(B):

Mariah purchases three hair barrettes by using a gift card.

Let the cost of each barrette is b.

So the cost of 3 barrettes is: [tex]3b[/tex]

She uses a gift card with a balance of $35.79. Therefore subtract  [tex]3b[/tex] from $35.79.

Her purchase can be expressed as:

[tex]35.79-3b[/tex]

Hence, the required expression is [tex]35.79-3b[/tex].

Answer:

5h + 6.5

Step-by-step explanation:

i just did the test on edg

Answer:

there is a black photo

Step-by-step explanation:

make sure to check properly

Answer:

26.68 ft

Step-by-step explanation:

Let a represent the distance from Kelsea to the bird and b be the distance from Landon to the bird.

Let x = angle of the bird. Hence:

x + 45 + 20 = 180 (sum of angles in a triangle)

x + 65 = 180

x = 180 - 65

x = 115°

Using sine rule:

[tex]\frac{100\ ft}{sin(115)} =\frac{a}{sin(45)} =\frac{b}{sin(20)} \\\\\frac{100\ ft}{sin(115)} =\frac{a}{sin(45)}\\\\a=\frac{100\ ft}{sin(115)} *sin(45)\\\\a=78\ ft\\[/tex]

Let h = height of the bird to the ground. Since a right angle is formed. hence:

[tex]\frac{h}{sin(20)} =\frac{78}{sin(90)} \\\\h=\frac{78}{sin(90)}*sin(20)\\\\h=26.68\ ft[/tex]

Answer:

52 7/8 pounds

Step-by-step explanation:

Find the smaller dog's weight by multiplying the larger dog's weight by 0.75:

70.5(0.75)

= 52.875 or 52 7/8 pounds

So, the smaller dog weighs 52 7/8 pounds

The required weight of the smaller dog is 52.875 pounds.

Given that,
Doug has two German Shepherds. The larger dog weighs 70 1/2 pounds. If the smaller dog weighs 75% as much as the larger dog, To find the smaller dog's weight.

In mathematics, it deals with numbers of operations according to the statements.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
Let the weight of the smaller dog be x,
The weight of the smaller dog is 75% of the larger dog
x = 75% of 70 1/2
x = 0.75 * 70.5
x = 52.875

Thus, the required weight of the smaller dog is 52.875 pounds.

Learn more about arithmetic here:

brainly.com/question/14753192

#SPJ2

Answer:

x = 8

Step-by-step explanation:

well using the theorem we have

[tex]\frac{6}{9}=\frac{x}{12}\\\\\frac{2}{3}=\frac{x}{12}\\\\12[\frac{2}{3}]=12[\frac{x}{12}]\\\\4\cdot 2=x\\\\x=8[/tex]

Answer: Hi, sorry if I’m late to answering but the answer is 19

Step-by-step explanation:

You divide each number in the equation by 5. So, 5x divided by 5 = 1. We cannot use 5 divided by 5 because it will equal 1 so we ignore that and go to 95 divided by 5 = 19. Therefore, 19 is your answer!!! (Hope this helped)

Answer:

No. Nina forgot to adjust ticket sales.

Step-by-step explanation:

3/4(1440) + (295.25-33.50)

=1341.75

She didn't add the 1/4 less sales from the next day, Therefore she is wrong.

Answer:

1.61

Step-by-step explanation:

Just subtract 4.7 by 3.09

Answer:

3.75

Step-by-step explanation:

14.20-2.95=11.25÷3=3.75 per burger

Answer:

900,000

I think is the answer

Answer:

(1). x = 14 ; (2). 70°

Step-by-step explanation:

(1). m∠ACD = m∠A + m∠B

6x + 2 = (2x + 1) + (3x + 15)

6x - 5x = 14

x = 14

(2). m∠ABC = 180° - m∠CBD = 140°

m∠A = m∠C = 140° ÷ 2 = 70°

Answer:

45 and 14 are the correct answer

Answer: 264 cubic centimeters

8*8*1=64

8*5*5=200

200+64=264

Answer:

C

Step-by-step explanation: each side by 4 and you get the radius as 2 and the center at 0,0.

Answer: C

Step-by-step explanation: I got this right on Edmentum.

Answer:

16 coins

Step-by-step explanation:

At first: 4 coins

First hour: 4 x 2 = 8

Second hour: 8 x 2 = 16

Total coins: 16 coins

Answer:

256

Step-by-step explanation:

i think it is 256.i hope it was that

Answer:

Step-by-step explanation:

Here you go mate;

STEP 1

2^7 x 2  equation

STEP 2

2^7 x 2  simplify

(2^7)(x^2)

STEP 3

128^2  multiply

answer

16384

9514 1404 393

Answer:

  D.  a ║ b

Step-by-step explanation:

If we figure the other angle of each linear pair, we can directly compare angles to see if corresponding angles are the same. Where they are the same, the lines are parallel.

  Line a is parallel to line b.

Answer:

Step-by-step explanation:

it is a

the fist box

Answer:

no,it's not a solution if you look closely its only on the part of the graph that's blue, for a point to be a solution it has to be in the area that is blue and shaded.

Answer:

third option

r > 11

_

hope it helps

Answer:

7

Step-by-step explanation:

Answer:

A= 113.1 (I rounded my answer)

Step-by-step explanation:

A=πr^2=π·6^2=113.09734

Answer:

113.04 [tex]m^{2}[/tex]

Step-by-step explanation:

Area of a circle is π x [tex]r^{2}[/tex].

I'm assuming that you're using 3.14 as π.

Since the radius of the circle is 6 m, all you need to do is plug it in!

Area = 3.14 × [tex](6)^{2}[/tex]

Area = 3.14 × 36

Area = 113.04 [tex]m^{2}[/tex], which is the third answer choice.

Answer:

Yes you can, you just need to make x be times by 4.

Step-by-step explanation:

4 quarts in a gallon