Is this right? PLEASE HELP

Answer:

True,

Definition of equation for you: a statement that the values of two mathematical expressions are equal (indicated by the sign =).

Answer:

[tex](4,3)[/tex]

Step-by-step explanation:

Given

[tex]R = (-2,-3)[/tex]

[tex]M = (1,0)[/tex]

Required

Determine the coordinates of S

Midpoint is calculated as:

[tex]M(x,y) = \frac{1}{2}(x_1 +x_2,y_1+y_2)[/tex]

Where:

[tex](x,y) = (1,0)[/tex]

[tex](x_1,y_1) = (-2,-3)[/tex]

Substitute these values in the above formula:

[tex](1,0) = \frac{1}{2}(-2 + x_2,-3+y_2)[/tex]

Multiply through by 2

[tex]2 * (1,0) = 2 * \frac{1}{2}(-2 + x_2,-3+y_2)[/tex]

[tex](2,0) = (-2 + x_2,-3+y_2)[/tex]

By direct comparison:

[tex]2 = -2 + x_2[/tex] and [tex]0 = -3 + y_2[/tex]

Solving for x2

[tex]2 = -2 + x_2[/tex]

[tex]x_2 = 2 + 2[/tex]

[tex]x_2 = 4[/tex]

Solving for y2

[tex]0 = -3 + y_2[/tex]

[tex]y_2 = 0 + 3[/tex]

[tex]y_2 = 3[/tex]

Hence, the coordinates of S is: [tex](4,3)[/tex]

Answer:

b = 4

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define equation

8b - 12 = 5b

Step 2: Solve for b

Step 3: Check

Plug in b to verify it's a solution.

And we have our final answer!

Answer: $50

Step-by-step explanation:

Rounding the numbers, you get 70-20, which equals $50

Answer:

Constant

Step-by-step explanation:

It cannot be a variable because there is no variable. Variables are x,y, z and etc.

Answer:

The answer is constant, variables are letters that are added to numeral like terms.

Step-by-step explanation:

Answer:

a i think

Step-by-step explanation:

Answer:

Y

Step-by-step explanation:

Yes

Answer:

≈3.11

Step-by-step explanation:

The value of the quantity after 21 days, to the nearest hundredth, given the expoenential decay is 3.11.

When a quantity decays , it means that the value of the quantity declines with the passage of time.

The formula that can be used to determine the value of the quantity after a number of weeks is :

FV = P (1 - r)^n

Where:

920 x (1 - 0.85)^3

920 x 0.15^3 = 3.11

To learn more about exponential function, please check: brainly.com/question/18760477

Answer:

hundresths is correct

Answer:

Step-by-step explanation:

.09 the 9 is hundredth place the 0 is tenth place

Answerdddddddddddddddddddddddddddddddddddddddddddddddddddddd

Step-by-step explanation:

Answer:49.75 dollars

Step-by-step explanation:

Khan academy

Answer:

The lengths of the sides of the playground are 14 feet, 6 feet, 7 feet

Step-by-step explanation:

At first, let us find the perimeter of the playground

∵ Perimeter of a triangle is P = S1 + S2 + S3

∵ The sides of the triangular playground are (2x) ft, (x - 1) ft, and x ft

∴ S1 = 2x, S2 = x - 1, S3 = x

→ Substitute them in the rule of the perimeter above

∵ P = 2x + x - 1 + x

→ Add the like terms

∴ P = (2x + x + x) - 1

∴ P = 4x - 1

∵ The perimeter of this playground is 27 feet

∴ P = 27

→ Equate the two values of P

∴ 4x - 1 = 27

→ Add 1 to both sides

∴ 4x - 1 + 1 = 27 + 1

∴ 4x = 28

→ Divide both sides by 4

∵ [tex]\frac{4x}{4}[/tex] = [tex]\frac{28}{4}[/tex]

∴ x = 7

→ Substitute the value of x in each side to find their lengths

∵ S1 = 2(7)

∴ S1 = 14 feet

∵ S2 = 7 - 1

∴ S2 = 6 feet

∵ S3 = 7 feet

∴ The lengths of the sides of the playground are 14 feet, 6 feet, 7 feet

Answer:

x = 6.5 or 13/2

Step-by-step explanation:

4(2x − 1) = 2x + 35

distribute the 4 to 2x - 1

8x - 4 = 2x + 35

subtract 2x

6x - 4 = 35

add 4

6x = 39

divide by 6

x = 6.5 or 13/2

Answer:

The value of cos Ф is ± [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

There are important rules for sin Ф and cos Ф

∵ sin Ф = [tex]\frac{\sqrt{3}}{2}[/tex]

∴ sin²Ф = [tex](\frac{\sqrt{3}}{2})^{2}[/tex]

∴ sin²Ф = [tex]\frac{3}{4}[/tex]

→ By using the third rule above

∵ cos²Ф = 1 - sin²Ф

∴ cos²Ф = 1 - [tex]\frac{3}{4}[/tex]

∴ cos²Ф = [tex]\frac{1}{4}[/tex]

→ Take square root for both sides

∴ cos Ф = ± [tex]\frac{1}{2}[/tex]

∴ The value of cos Ф is ± [tex]\frac{1}{2}[/tex]

Answer:

His total earning for the month would be $8,500.

Step-by-step explanation:

In order to calculate the total earnings for the month, you have to find the 3% of the amount of the sales and add the monthly salary:

Monthly earnings=($250,000*3%)+$1,000

Monthly earnings=$7,500+$1,000

Monthly earnings=$8,500

According to this, the answer is that his total earning for the month would be $8,500.

Answer:

The Answer Is $8,500

Step-by-step explanation:

I just took the test

Answer:

12 pastries

Step-by-step explanation:

30/2.5 = 12

check:

12(1 hour) +12(1 hour) +6(Half hour) = 30

Answer:

7

Step-by-step explanation:

[tex]\frac{r - 2}{-8+7} = -5[/tex]

r - 2 = - 5(- 1) ⇒ r = 7

Answer:

The answer is letter A.

-7+3(-4e-3)

−7+3((−4)(2.718282)−3)

=−48.619382

-4(3e+4)

−4((3)(2.718282)+4)

=(−4)((3)(2.718282)+4)

=(−4)((3)(2.718282))+(−4)(4)

=−32.619382−16

=−48.619382

Answer:

25

Step-by-step explanation:

Answer:

it is 25

Step-by-step explanation:

Answer:

68

Step-by-step explanation:

To get the sample size of the population, we will use the formula for calculating the standard error of the mean. This is expressed as;

SE = zσ/√n

z is the z score at 90% confidence

σ is the standard deviation

n is the sample size

SE is the mean weight loss

Given

z = 1.645

σ = 10

SE = 2

Required

sample size n

Substitute into the given equation;

SE = zσ/√n

2 = (1.645)(10)/√n

2 = 16.45/√n

√n = 16.45/2

√n = 8.225

n = (8.225)²

n = 67.650625

Hence the total sample should be about 68

9514 1404 393

Answer:

  460 feet

Step-by-step explanation:

The tangent relates the measures to the angle:

  tan(angle of elevation) = (Godzilla height)/(distance away)

  tan(49°) = (Godzilla height)/(400 ft)

  Godzilla height = (400 ft)(tan(49°)) ≈ 460 ft

Godzilla is 460 feet tall.

Answer:

godzilla is 393 foot tall

Step-by-step explanation:

Answer:

I mean tbh its pretty easy

The y intercept is: (0, 2.5)

The x-intercept is: (3.5,0)

just look at the graph lol but if im

wrong sorry

Answer:

I believe you mean algebra and inverses when you change it to solve inequalities.

Step-by-step explanation:

Let's use -3 + 4 as an example. In order to change the function, you will switch the sign. (In this case, we change "+" into ")

At this same time, you must change the sign in front of the numbers. (Positive signs become negative and negative signs become positive.

So, -3 + 4 is the same thing as 3 - -4.

3 - 4 = -1

-3 + 4 = 1

Tip: When subtracting a negative number, the answer is likely to go up instead of down.

I hope this helps! I did my best :)

Answer:

$.09 per inch

Step-by-step explanation:

1 foot = 12 inches

Multiply each side by 7

7 ft = 12*7 = 84 inches

Take the cost and divide by the number of inches

$7.56 / 84 inches

$.09 per inch

Answer: 0.09 per inch  because multiply that by 12 and thats a foot and multiply that by 7 and you'll get 7.56

Step-by-step explanation:

Answer:

D. (2 x 0,01) + (7 % 0,001)

Answer:

jhghgfg

Step-by-step explanation:

Answer:

[tex]Change = \$8.82[/tex]

Step-by-step explanation:

Given

[tex]Basketball = \$25.57[/tex]

[tex]Air\ Pump = \$15.61[/tex]

[tex]Amount = \$50[/tex]

Required

Determine the change received

First, we need to calculate the total amount spent

[tex]Total = \$25.57 + \$15.61[/tex]

[tex]Total = \$41.18[/tex]

This implies that Natalie pays a total of $41.18

Next, we calculate the change as thus:

[tex]Change = Amount - Total[/tex]

[tex]Change = \$50 - \$41.18[/tex]

[tex]Change = \$8.82[/tex]

Hence, the change is $8.82

Answer:

0.55

Step-by-step explanation:

all you do is subtract