Can someone please check my answer

Answer:

6.5 cm

Step-by-step explanation:

25 -18.5= 6.5 ....im like 95% this is the correct answer-

Answer:

40 yd^2

Step-by-step explanation:

Area for a triangle is A = base * height / 2 = 8*10/2 = 40 yd^2

If it is helpful, plz give me Brainliest.

Answer:

40 yd^2

Step-by-step explanation:

The formula is (B*H)/2

The base is 8 and the height is 10

8*10=80

80/2

= 40

Don't forget to put the units:

40 sq. yards

Answer:

I think D but im bad at 5hat stuff

Step-by-step explanation:

Step-by-step explanation:

1 pound is 16 ounces

2 pounds are 16 x2 which is 32 ounces

she needs 20 ounces

32 -20 is 12

she will have 12 ounces left

Answer:

The least amount of numbers that he can work at his job to have enough for the headphones he wants is 17 hours.

Step-by-step explanation:

To find the number of hours you could divide the cost of the headphones by the amount he earns each hour so you would do $119/ 7 to get 17 and then you could check your answer with multiplication by multiplying 7 * 17 to get 119 which shows that he has to work at least 17 hours to get the headphones he wants.

$119 / 7 = 17

17 * 7 = 119

Answer:

1. 17/12

2. 12/17

Step-by-step explanation:

Answer:

17/2!

Step-by-step explanation:

Have a nice day :)

Hope this helps

Answer:

I believe its G. 2x<8

Step-by-step explanation:

An open circle means that it is only less than OR more than, and since the arrow is pointing towards the left, it means that it is less than 8. I really hope this helps!

Answer:

=3

Step-by-step explanation:

Answer:

x^2 is x2 \x^2 is x 4 - is x^2 easy

Answer:

x cannot = -4 and -3

Step-by-step explanation:

Answer:

B : 18M²

Step-by-step explanation:

2 Triangles ½base times height then 5 times 3

Answer:

18

Step-by-step explanation:

A = 1/2 (a+b) × h

A= 1/2 (7+5) × 3

A = 18

sorry if I got it wrong

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

To find the inverse function, solve for y:

  x = h(y)

  x = √(y +6) -7 . . . . . . . fill in the function definition

  x +7 = √(y +6) . . . . . . .add 7

  (x +7)² = y +6 . . . . . . . square

  (x +7)² -6 = y . . . . . . . . subtract 6

Then the inverse function is ...

  [tex]\boxed{h^{-1}(x)=(x+7)^2-6} \qquad\text{matches choice C}[/tex]

Answer:

Step-by-step explanation:

y = mx +b

m- Slope ; b - y-intercept

1) y = 2x + 5

Slope = 2

y-intercept = 5

2) 2y = 4x - 5

 Divide the equation by 2

[tex]\frac{2y}{2}=\frac{4x}{2}-\frac{5}{2}\\\\y = 2x - \frac{5}{2}[/tex]

Slope = 2

y-intercept = [tex]\frac{-5}{2}[/tex]

3) 3x + 6y = 8

           6y = -3x + 8

            [tex]\frac{6y}{6}=\frac{-3x}{6}+\frac{8}{6}\\\\ y = \frac{-1}{2}x+\frac{4}{3}\\\[/tex]

Slope = -1/2

y-intercept = 4/3

Answer:

90 - 37 will give a solid 53

Step-by-step explanation:

the two sums of A to C to C to B so 22.9(C, B) and 14.1 (A, C)

and know that this angle is 90 degrees, my guess would be to subtract the to given numbers with degrees to earn the sum so 22.9 + 14.1 equals 37

now we add angle degrees and sum and subtract one another,

90 - 37

Answer:

720cm³

Step-by-step explanation:

Answer:

720cm3

Step-by-step explanation:

Volume of a Prism = L × W × H

= 12 × 4 × 15

= 720cm3

Answer:

s(x)

Step-by-step explanation:

s(x) is a linear function, so the average rate of change is its slope.

Its slope is 3.

You are correct.

To find the average rate of change of polynomial function t(x) from -2 to 2, find the values of t(x) at x = -2 and at x = 2.

average rate of change = [t(2) - t(-2)]/[2 - (-2)]

t(x) = 0.1(x^3 - x^2 + 2)

t(-2) = 0.1[(-2)^3 - (-2)^2 + 2)]

t(-2) = 0.1(-8 - 4 + 2)

t(-2) = -1

t(2) = 0.1[(2)^3 - (2)^2 + 2)]

t(2) = 0.1(8 - 4 + 2)

t(2) = 0.6

average rate of change = [t(2) - t(-2)]/[2 - (-2)]

average rate of change = [0.6 - (-1)]/4

average rate of change = 1.6/4

average rate of change = 0.4

average rate of change for s(x) = 3

average rate of change for s(x) = 0.4

Answer: s(x)

D, because both are mirroring angles

Answer:

D

Step-by-step explanation:

60 and 4x - 20 are vertically opposite angles and are congruent, then

60 = 4x - 20 ← is the equation to solve for x

Answer:

1.35m

Step-by-step explanation:

A 2.7 meter ladder leans against a house forming a 30° angle with the house. Exactly how far is the base of the ladder from the house?

We solve the above question using the Trigonometric function of Sine

cos theta = Opposite/Hypotenuse

From the question

Opposite = Distance of base of the ladder from the house = x

Hypotenuse = Length of the ladder = 2.7m

Theta = 30°

Hence,

sin 30 = x/2.7 m

Cross Multiply

x = sin 30 × 2.7m

x = 1.35m

Option b is correct.

The base of the ladder from the house is 1,35 meters, the correct option is B.

Given

A 2.7-meter ladder leans against a house forming a 30° angle with the house.

The sine of an angle is a function that relates to the sides of a right triangle.

Let the base of the ladder from the house be x.

The height of the base of the ladder from the house is given by;

[tex]\rm Sin\theta =\dfrac{Opposite \ side}{Hypotenuse}[/tex]

Substitute all the values in the formula

[tex]\rm Sin\theta =\dfrac{Opposite \ side}{Hypotenuse}\\\\\rm Sin30=\dfrac{h}{2.7}\\\\h = 2.7 \times sin30\\\\h=2.7 \times 0.5\\\\h=1.35 \ meter[/tex]

Hence, the base of the ladder from the house is 1,35 meters.

To know about trigonometric identities click the link is given below.

https://brainly.com/question/583439

Answer:

-86x^2 -2x - 8

Step-by-step explanation:

The solution is:

6x²+2x²+3x-4x-9+1  becomes 8x²- x -8.

Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-) and is the method of calculating the difference between two numbers.

Here, we have,

Subtract -2x^2+4x-1 ( minus 2x squared plus 4x minus 1) from 6x^2+3x-9 (6x squared plus 3x minus 9).

To  subtract -2x^2+4x-1 from 6x^2+3x-9,

that is

6x^2+3x-9 - (-2x^2+4x-1).

This can be written as

6x²+3x-9 - (-2x²+4x-1)

Now, opening the bracket, we will get

6x²+3x-9 +2x²-4x+1

Then, collecting like terms, we get

6x²+2x²+3x-4x-9+1

6x²+2x² = 8x²

3x-4x = -x

-9+1 = -8

∴6x²+2x²+3x-4x-9+1  becomes 8x²-x -8

The answer is 8x²-x -8.

To learn more on subtraction click:

brainly.com/question/2346316

#SPJ2

Answer:

$161.90

Step-by-step explanation:

You divide 1700 by 10.5.

Answer:

8y and 6xy i think

Answer:

$12,741.4

Step-by-step explanation:

If there are no additional deposits, the final balance is $12,741.4, and the the total compound interest is $741.4.

Answer:

(c) The equation, y = -3x + 100, represents the Model S tank.

(f) The Model T tank drains the fastest at 3.5 gallons per minute.

Step-by-step explanation:

Given

See attachment for models S and T

First, we calculate the equation of both models

Model S

[tex](x_1,y_1) = (0,100)\\\\(x_2,y_2) = (6,82)[/tex]

Calculate drainage rate (m)

[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]

[tex]m = \frac{82-100}{6-0}[/tex]

[tex]m = \frac{-18}{6}[/tex]

[tex]m = -3[/tex] -- This implies that model S drains at 3 gallons per minutes

The equation is:

[tex]y = m(x - x_1) + y_1[/tex]

[tex]y = -3(x - 0)+100[/tex]

[tex]y = -3(x)+100[/tex]

[tex]y = -3x+100[/tex]

Model T

[tex](x_1,y_1) = (0,100)\\\\(x_2,y_2) = (4,86)[/tex]

Calculate drainage rate (m)

[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]

[tex]m = \frac{86-100}{4-0}[/tex]

[tex]m = \frac{-14}{4}[/tex]

[tex]m = -3.5[/tex] -- This implies that model T drains at 3.5 gallons per minutes

The equation is:

[tex]y = m(x - x_1) + y_1[/tex]

[tex]y = -3.5(x - 0)+100[/tex]

[tex]y = -3.5(x)+100[/tex]

[tex]y = -3.5x+100[/tex]

From the calculations above, the following options are true:

(c) and (f)

It is required to find which statements are true.

The statements that are true are

The equation, y = -3x + 100, represents the Model S tank.

The Model T tank drains the fastest at 3.5 gallons per minute.

Equation of a line is

[tex]y=mx+c[/tex]

where,

[tex]y=\text{Gallons of water left}[/tex]

[tex]x=\text{Minutes passed}[/tex]

[tex]m=\text{Slope}=\dfrac{\Delta y}{\Delta x}[/tex]

[tex]c=\text{Y intercept}[/tex]

The equation of the line for model S is

[tex]y-100=\dfrac{82-100}{6-0}(x-0)\\\Rightarrow y-100=-3x\\\Rightarrow y=-3x+100[/tex]

The option C is true.

The equation of the line for model T is

[tex]y-100=\dfrac{86-100}{4-0}(x-0)\\\Rightarrow y-100=-3.5x\\\Rightarrow y=-3.5x+100[/tex]

The slope or rate of drain is 3.5 gallons per minute.

So, option F is true.

Learn more:

https://brainly.com/question/18011570?referrer=searchResults

Answer:

2 1/3 of a gallon

Step-by-step explanation:

multiply 1/3 by 7

7/3 = 2 1/3

Answer:

Mika's estimated the sum to be 216. The actual sum is 216.27

Step-by-step explanation:

Mika:

189.27 = 189

15.8 = 16

11.2 = 11

189 + 16 + 11 = 216

Actual:

189.27 + 15.8 + 11.2 = 216.27

Answer:

6x

Step-by-step explanation:

3*2x=6x