How do I explain and answer those questions ?? Please help

Answer:

y=-5, x=-1

Step-by-step explanation:

y=5x

/5 /5

y/5=x

y=9(y/5)+4

y=-5

-5=5x

/5   /5

-1=x

Answer:

A. $202.80 EDGE

Step-by-step explanation:

The predicted price of a set that has 2,520 pieces is $202.8.

The correct option is (A).

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

y = 0.08x + 1.20

where x represents the number of pieces in a set and y is the predicted price.

So, for x= 2520 pieces the predicted price is

y= 0.08(2520)+ 1.20

y= 201.6 + 1.5

y= $202.80

Hence, the predicted price is $202.8.

Learn more about Equation here:

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Answer: $20.78

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

1 3 fourths is 7/4

(7/4)*8

4 cancels out with 8

2*7=14

1 3 fourths = 1 3/4 = 7/4

=》 7/4 × 8 (cancel out 4 & 8)

=》 7 × 2 (multiply them)

=》 14

____

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

Step-by-step explanation:

no it does not form a right triangle. 

a+b+c = 250

1002 + 502 does not equal 1002

nor 1002 + 1002  does not equal 502

so therefore the sides are 100, 100, and 50 but these do not make a right triangle

Answer:

17

Step-by-step explanation:

You have length 19 and 3:

19-3 = 16 AND 19+3=22

You have a range of 16 and 22 and the smallest number between this specific interval is 17, you do not include 16 or 22 in the interval.

130 degrees and 30 minutes

That's minutes as in arc-minutes, a sub-division of a degree. 1 degree is made up of 60 minutes.

So 130°30' is the same as 130° + 30/60° = 130.5°.

Yooo how u doin ?

[tex]f( - 4) = ( { - 4})^{2} + 3[/tex]

[tex]f( - 4) = 16 + 3[/tex]

[tex]f( - 4) = 19[/tex]

There it is ....

Don't have a good day , Have a great day ❤

The reciprocal of a whole number is a fraction with the whole number as the denominator.

Set up the equation:

10 * 1/x = 5 * 1/3

Simplify:

10/x = 5/3

Multiply both sides by 3:

30/x = 5

multiply both sides by x:

30 = 5x

Divide both sides by 5:

x = 6

Answer: 6

Answer: 2.4

Step-by-step explanation:

Because they are similar, the lengths of the sides will have the same ratio.

We will use side AB and side XY since it shows both sides.

This shows that the ratio is 3:4

We can then use that to find out that XZ also uses the ratio 3:4

3.2 / 4 = 0.8

0.8 * 3 = 2.4

XY is equal to 2.4

Answer: about 22.364 or 22.365, I depends on how you to round it

Step-by-step explanation: 0.2*111.82

Answer:

22.364

Step-by-step explanation:

11.82x0.2=22.364

Answer:

X^2 + 10x +24

Step-by-step explanation:

I hope this helps!

Answer:

Step-by-step explanation:

1/4 : 2 * 1/4 = 6 : x

0.25 : 2/4 = 6 : x

0.25 : 1/2 = 6 : x

0.25 : 0.5 = 6 : x

0.5 = 6 : x

x = 6 : 0.5

x = 12

Answer:

Step-by-step explanation:

4x² + 20x + 25 = (2x)² + 2* 2x *5 + 5²

{Compare with a² + 2ab + b² = (a+ b)²}

                         = (2x + 5)²

                         = (2x +5)*(2x+5)

Side of the square = 2x+ 5

Answer:

Part A is (2x+5)^2. Part B is  (2x+3y)(2x-3y).

Step-by-step explanation:

Part A: The polynomial is prime. When you split the middle term, it becomes 4x^2+10x+10x+25. Then rewrite using the common factor from the two pairs. 2x(2x+5)+5(2x+5). Rewrite in factored form, which is (2x+5)(2x+5). Then combine which is, (2x+5)^2. The length of each side is (2x+5)^2.

Part B: The polynomial is prime. Rewrite 4x^2 as (2x)^2 and 9y^2 as (3y)^2, which looks like (2x)^2-(3y)^2. Both terms are perfect squares. The answer is (2x+3y)(2x-3y).

Answer:

23:18,23 to 18,23/18

Step-by-step explanation:

the three ways to write a ratio are colon,the word to, and the divide symbol .

Answer:

If you're trying to find h, then the answer is A.

Step-by-step explanation:

5.3 x 2.98 = 15.79, which rounds up to 15.8.

15.8 + 3 = 18.8

Answer:

A. 2.98

Step-by-step explanation:

When you substitute h for the answers shown, you get different numbers.

When you substitute h for 2.98 you are given 15.794

15.794 + 3 is 18.794

Rounding 18.794 to the next tenth is 18.8

Answer: A. 2.98

Answer:2W + 2L = P

P is at most 112.......< or = 112

L = 3W

answer is :

2W + 2(3W) < = 112 (thats less then or equal)

Step-by-step explanation:

Answer:

Well I'm assuming some things based on my logic because I don't see the "five examples" but the normal lowest grade you can get and still get a A would be 90.0%. In order to get a A on a exam you need to understand the content of the exam. Some kids get A's on every exam for every class because they understand the content of their classes. Others get B's, C's, D's, and F's because they don't understand the content. Understanding content has nothing to do with you passing exams but how much effort you put into the class and studding.

Answer:

y=15x+8

Step-by-step explanation:

Have a good day =)

Work Shown:

[tex]z = \frac{\hat{p}-p}{\sqrt{\frac{pq}{n}}}\\\\\\z = \frac{\frac{537}{1851}-0.30}{\sqrt{\frac{0.30*(1-0.30)}{1851}}}\\\\\\z \approx \frac{0.290113-0.30}{\sqrt{\frac{0.21}{1851}}}\\\\\\z \approx \frac{-0.009887}{\sqrt{0.000113}}\\\\\\z \approx \frac{-0.009887}{0.010630}\\\\\\z \approx -0.93010348071496\\\\\\z \approx -0.93\\\\\\[/tex]

Answer:

C

Step-by-step explanation:

Line up all the units and see what needs to cancel. in the final answer provided in the problem it is actually 1500 seconds*hours/minute. Therefore multiplying by minutes and dividing by seconds would cancel those and result in the correct unit being seconds.

Answer:

The answer is C

When the blade makes one complete rotation, how far (in ft) does the tip of the blade travel?

Because the blade is 140, we that means the radius is 140. So we need to find the circumference of the circle.

C=2πr

C = (2)(3.14)(140)

C = 879.2 ft

The blade travels 879.2 feet

What is the surface area (in acres) that the rotating blades cover?

A = πr²

A = (3.14)(140)²

A = (3.14)(19600)

A = 61544 ft²

An acre = 43,560 feet

61544 / 43560 = 1.41285583

The surface area the rotating blades covers is 1.41 acres

Answer: Area= 459.73cm^2

Step-by-step explanation: Circumference of a circle is 2πr

76=2×3.14×r

r= 76÷(6×3.14)

r=12.10

Area of a circle= πr^2

Area= 3.14×(12.10)^2

Area= 456.73cm^2

Answer: 8 grapes

Step-by-step explanation:

Division represents even distribution.  As such, simply rephrase the word problem as 16 ÷ 2, or 8.

Hope it helps :) and let me know if you want me to elaborate.

Answer:

6

5

2

3

1

4

5

6

7

8

9

10

11

12

13

15

16

17

18

19

20

Answer:

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

Step-by-step explanation:

You can find this by looking at a unit circle and locating 45 degrees, and finding the x coordinate at that point.

Answer:

5) b

6) d

Step-by-step explanation:

Answer:

your so funny for a annoying kid

Step-by-step explanation:

A convenience store purchased a magazine and marked it up 100% from the original cost of $2.30. A week later, the store placed the magazine on sale for 50% off. What was the discount price?

Answer:

no question

Step-by-step explanation:

sorry I cant help there's no question

Answer:

Help with what?

Step-by-step explanation:

There is no question.

Answer:

No because its -10 per year so after 10 years the car value will go below zero which makes it useless

Step-by-step explanation:

Step-by-step explanation:

Given the table of values where it represents the relationship between the change in value of a car and number of years.

Before we can establish the linear equation, we need to determine its slope by using two ordered pairs from the table.  

Let (x₁, y₁) = (1, 84)

     (x₂, y₂) = (3, 64)

Substitute these values into the following slope formula:

m = (y₂ - y₁)/(x₂ - x₁)

m = (64 - 84)/(3 - 1)

m = -20/2

m = -10

Therefore, the slope of the linear function is -10.

Assuming that the car's depreciation in value is linear for the first 5 years, then we can establish the following function:

Next, using one of the given ordered pairs from the table, (1, 84), and the slope, m = -10, substitute these values into the slope-intercept form to solve for the value of the car at x = 0 (the y-intercept, b ):    

84 = -10(1) + b

84 = -10 + b

Add 10 to both sides to isolate b:

84 + 10 = -10 + 10 + b

94 = b

Therefore, the linear function is f(x) = -10x + 94.

To verify whether this is the correct function to represent the given linear model, substitute the values for year 5, where the car's value is at 44%:

f(5) = -10(5) + 94

f(5) = -50 + 94

f(5) = 44  ⇒ This matches the value from the given table, where it implies that at year 5, the value of the car is 44%.           

Since the car's value is expressed in percentage (%), then it means that at year = 0, the car's value is 100%.  The value of the car in year 1 is 84%.

Therefore, the car's value will decrease by 16% from the day it was purchased (at year = 0) through year 1.    

To determine the value of the car the day it was purchased and driven off the lot:

Let x = 1 out of 365 days = 1/365 = 0.0027

f(0.0027) = -10(0.0027) + 94

f(0.0027) = -10(0.0027) + 94

f(0.0027) = -0.027 + 94

f(0.0027) = 93.973

The car's value at Day 1 is 93.97%, which means that it decreased by 6%.              

In order to determine whether the linear model would still be useful after 10 years, let x = 10:

f(x) = -10x + 94

f(10) = -10(10) + 94

f(10) = -100 + 94

f(10) = -100 + 94

f(10) = -6

The value of the car by the 10th year will be -6%, implying that it is no longer useful by year 10.  The linear model is only useful up to the 9th year:

f(9) = -10(9) + 94

f(9) = -90 + 94

f(9) = 4 ⇒ The car's value by the 9th year is 4%.

Since in the original function, x represents the number of years, and there are 12 months in a year:

Let 12x = 12 months × 1 year

Substitute 12x as an input into the original function:

f(x) = -10x + 94

f(x) = -10(12x) + 94

f(x) = -120x + 94 ⇒ This represents the function that models linear relationship between the percentage value of a car relative to the number of months that the car is driven.