WILL GIVE BRAINLIEST!!!!!!!!!!
A sandcastle can be modeled with four 6-inch-tall square prisms, one on top of the other, as shown in the figure below.
The base of the bottom prism has a side length of 30 inches, and the base of each of the other three prisms has a side length 7 inches less than the side length of the base of the prism below it. What is the volume of the sand castle?

Answer:

the answer is 4

Step-by-step explanation:

2+2=4

Answer:

The value of x = 1

Step-by-step explanation:

Given

To determine

x = ?

Using the trigonometric ratio

cos Ф = adjacent / hypotenuse

here

Ф = 45°

adjacent of 45° = x

hypotenuse = √2

so substituting Ф = 45°  adjacent = x and hypotenuse = √2  in the equation

cos Ф = adjacent / hypotenuse

[tex]\cos \left(45^{\circ \:}\right)=\frac{x}{\sqrt{2}}[/tex]

switch sides

[tex]\frac{x}{\sqrt{2}}=\cos \left(45^{\circ \:}\right)[/tex]

Multiply both sides by 2

[tex]\frac{2x}{\sqrt{2}}=2\cos \left(45^{\circ \:}\right)[/tex]

[tex]\sqrt{2}x=\sqrt{2}[/tex]             ∵  [tex]\cos \left(45^{\circ \:}\right)=\frac{\sqrt{2}}{2}[/tex]

Divide both sides by √2

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

[tex]x=1[/tex]

Therefore, the value of x = 1

- the type of pair is vertical angle.

- to find x:

-- vertical angles are equal.

4x + 10 = 5x - 1

10 = x - 1

x = 11

here is your answer pls check the answer hope u can understand

Answer: It will take 12 hours for the price of the jacket to decrease by $18

Step-by-step explanation: All you got to do for this problem is 18 divided by 1.50 to get $12.

Answer:

the first one

Step-by-step explanation:

y=ex where k is constant of proportionallty

Answer:

the slope is 1

you find two points that are directly on an intersection of the grid. and then count rise/run

rise is going up and down and run is left and right

start at the point you found furthest to the left and count to the next point that's to the right.

if you have to go down to find it or left to find it, the slope is negative

in this case. theres a point at (-1,0) and (0,1)

you have to count up one and right one, making the slope 1/1 or simplified to 1

Step-by-step explanation:

I hope this helps :)

Answer:

answer is c

Step-by-step explanation

answer is c

Answer:

C is the answer

Brainliest are appreciated :DDD

Answer:

A coefficient is a number in front of a variable. For example, in the expression x 2-10x+25, the coefficient of the x 2 is 1 and the coefficient of the x is -10. The third term, 25, is called a constant.

Step-by-step explanation:

Answer:

22/3

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

all of the others are lower than 0

Answer:

19 times

Step-by-step explanation:

114:6=19

19.5=95

114-95=19

Answer:

1/6 times so about 19 times plz make brainliest

Step-by-step explanation:

Answer:

As a percent: 115%

As a decimal: 1.15

As a fraction: [tex]\frac{23}{20}[/tex]

Step-by-step explanation:

Percentages

Suppose Michael spends some amount of money on food, and that money is set at 100%. He leaves a 15% tip for the waitress.

Thus, he is really paying 100%+15% = 115% of the original price.

To express a percentage as a decimal, we just divide by 100:

115% = 115/100 = 1.15

The same division should be simplified instead of operated to express the percentage as a fraction:

115% = [tex]\frac{115}{100}[/tex]

Simplifying by 5:

115% = [tex]\frac{23}{20}[/tex]

Summarizing:

As a percent: 115%

As a decimal: 1.15

As a fraction: [tex]\frac{23}{20}[/tex]

Answer:

Step-by-step explanation:

Given the equations

-9x + y =  71.... 1

-x - y = -1 .... 2

Using elimination method we can eliminate y first since they have the same coefficient.

To do that we will need to add up both equations. We are adding because the coefficient of y in both equations has different signs. If they have the same sign, we would have subtracted.

Hence the correct option in this case is to add to eliminate y.

Answer:

correct do

Step-by-step explanation:

Part a)

Given the expression

[tex]54m^3n\:+\:81m^4n^2[/tex]

Apply exponent rule:    [tex]a^{b+c}=a^ba^c[/tex]

[tex]54m^3n\:+\:81m^4n^2=54m^3n+81m^3mnn[/tex]     ∵ [tex]m^4n^2=m^3mnn[/tex]

Rewrite 81 as 3 · 27

Rewrite 54 as 2 · 27

                             [tex]=2\cdot \:27m^3n+3\cdot \:27m^3mnn[/tex]

Factor out the common term:   27m³n

                              [tex]=27m^3n\left(2+3mn\right)[/tex]      

Therefore,

[tex]54m^3n\:+\:81m^4n^2=54m^3n+81m^3mnn=27m^3n\left(2+3mn\right)[/tex]

Part B)

Given the expression

[tex]15x^2y^3z+25x^3y^2z+35x^2y^2z[/tex]

Apply exponent rule:    [tex]a^{b+c}=a^ba^c[/tex]

[tex]15x^2y^3z+25x^3y^2z+35x^2y^2z=15x^2y^2yz+25x^2xy^2z+35x^2y^2z[/tex]

Rewrite as

                                               [tex]=3\cdot \:5y^2x^2zy+5\cdot \:5y^2x^2zx+7\cdot \:5y^2x^2z[/tex]

Factor out common term 5y²x²z

                                                [tex]=5y^2x^2z\left(3y+5x+7\right)[/tex]

Therefore,

[tex]15x^2y^3z+25x^3y^2z+35x^2y^2z=5y^2x^2z\left(3y+5x+7\right)[/tex]

Answer:

1; 12.75

2; 47.8 or 47.3

Step-by-step explanation:

52× .25 is 13 then you subtract .25 from 13

and

94.60× .5 is 47.3 then you add the tax, 47.3+ .5 is 47.8.

Answer:

1; 12.75

2; 47.8 or 47.3

Step-by-step explanation:

Answer:

i cant help much.

Step-by-step explanation:

To find the area of the circle you do π (pie) x radius squared.

Answer:

(A).

Step-by-step explanation:

Answer:

There is only six sixes, so that would be 6c.

Step-by-step explanation:

Answer:

2, rise over run. 2/1 =2.

Answer:

625 ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

Given:

The vertices of a triangle are P(4,1), Q(2,-8), and R(-8,1).

To find:

The vertices of the image reflected across the y-axis.

Solution:

The vertices of a triangle are P(4,1), Q(2,-8), and R(-8,1). It is reflected across the y-axis.

If a figure is reflected across the y-axis, then

[tex](x,y)\to (-x,y)[/tex]

Using this rule, we get

[tex]P(4,1)\to P_1(-4,1)[/tex]

[tex]Q(2,-8)\to Q_1(-2,-8)[/tex]

[tex]R(-8,1)\to R_1(8,1)[/tex]

So, the vertices of the image are [tex]P_1(-4,1), Q_1(-2,-8), R_1(8,1)[/tex].

Therefore, the correct option is B.

Note: Options are not in proper form.

Answer:

P'(–4, 1), Q'(–2, –8), and R'(8, 1)

Step-by-step explanation:

Answer:

x=100°

Step-by-step explanation:

x+80°=180°( straight angle)

x=180°-80°

x=100°

hope it helps.