Mathematics College

A model giving the area A, in square meters, of a path is A = x^2 - 18x +80. Which equivalent expression shows the length and the width of the path?
A. A= (x-15)(x-3)
B. A = (x-10)(x-8)
C. A= (x-16)(x-5)
D. A = (x-20)(x-4)

Answers

Answer 1

Answer:

B

Step-by-step explanation:

A Model Giving The Area A, In Square Meters, Of A Path Is A = X^2 - 18x +80. Which Equivalent Expression
Answer 2

The equivalent expression shows the length and the width of the path is (x-10)(x-8).

What is Quadratic Equation?

An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax² + bx + c = 0, where x is the variable, a and b are the coefficients, and c is the constant term. First, there must be a term other than zero in the coefficient of x² (a≠ 0) for an equation to be a quadratic equation. The x²term is written first when constructing a quadratic equation in standard form, then the x term, and finally the constant term. The numerical values of a, b, and c are typically expressed as integral values rather than fractions or decimals.

Given:

A = x² - 18x +80.

Now, factorizing

x² - 10x - 8x + 80

=x(x-10) - 8(x-10)

=(x-8)(x-10)

Hence, equivalent expression shows the length and the width of the path is (x-10)(x-8).

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How many solutions are there to: 8x + 7 = 7 + 8x.​

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Answer: X make the equation true

Step-by-step explanation:

Does this scatter plot show a positive trend, a negative trend, or no trend?​

Answers

it shows a negative trend

Answer:

no trend

a positive trend would start in the bottom left and go toward the top right

a negative trend would start at the top left and go town the bottom right

this is an example of no trend

Step-by-step explanation:

a "trend" shows an increasing or decreasing relationship between the x and y values, in this they don't have any sort of relationship. you can tell by the repeating y values for multiple different x-values, or the repeating x-values for multiple different y-values.

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An insurance company offers a term life insurance policy with a renewable premium. The first year premium is $900. If the premiums increase 5.5% each year, how much will her premium be in 7 years? A $1,286 B $1,241 C $1,308 D $1,416​

Answers

Answer:

The answer is B

Step-by-step explanation:

If first year premium is $900 and the premiums increase 5.5% each year then the premium be in 7 years is $1308

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

An insurance company offers a term life insurance policy with a renewable premium.

The first year premium is $900

The premiums increase 5.5% each year,

[tex]A=Pe^r^t[/tex]

5.5%=5.5/100 =0.055

[tex]A = 900(e)^0^.^0^5^5^\times^7[/tex]

[tex]A=900e^0^.^3^8^5[/tex]

A=900×1.46

A=$1308

Hence, if first year premium is $900 and the premiums increase 5.5% each year then the premium be in 7 years is $1308

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Abigail invested $29,000 in an account paying an interest rate of 2.1% compounded continuously

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Answer:

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Step-by-step explanation:

Solve the system of equations.
- 52 + 2y = 9
y=73
T =
y =
Show Calculator

Answers

Step-by-step explanation:

(1 point)

No, there isn't a more efficient way to solve this system.

Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.

what is the slope and y intercept of y=4x-5

Answers

Answer:

theres is your answer

Step-by-step explanation:

Explanation: y=4x−5 is in the form of the slope-intercept formula for a linear equation, y=mx+b , where m is the slope and b is the y-intercept. By definition, the y-intercept is −5 .

A hot air balloon can hold up to 300 pounds of weight. The balloon's pilot weighs 140 pounds. How many 20-pound bags of sand (b) can also be carried by the hot air balloon? Select three options.

–2
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5
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Answers

Answer:

8 sand bags

Step-by-step explanation:

300 - 140 = 160

160 ÷ 20 = 8

8 sand bags of 20-pounds each.

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Answers

Answer:

Step-by-step explanation:

t+t+10+t+20=180

3t+30=180

3t=180-30=150

t=150/3=50

t+20=50+20=70

exterior angle=180-70=110°

two football players start running towards each other each other from the opposite ends of a 100- yard football field. The faster player runs at a rate of 30 feet per second. The slower player runs 20 feet per second. After how many seconds will they collide

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Answer:

600

Step-by-step explanation:

Multiply both numbers by 12.

240

360

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Answer: Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

the sum of 26 and twice a number

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Answer:

the answer to your question is 78. and the algebraic expression is 26 times 2 equals 52, then 52 plus 26

PLEASE HELP ME i’ll mark brainliest ! i added some extra points too

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The solutions to the equation are the X coordinates where the graph crosses the X axis.

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Answers

e Value of the Expression a. 50 times the sum of 64 and 36. 50 x(64+36)

Answer:

500 :)

Step-by-step explanation:

Pedro y su hijo tienen juntos 55 años , si Pedro es 25 años mayor que su hijo ¿Cuál es la edad de Pedro? rapido plox

Answers

Answer:

30?...creo que esa es la respuesta

Step-by-step explanation:

55-25=30

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Answer:

1. the first one

2.  the second one

Step-by-step explanation:

The open circle means that it isn't equal to so x is less than two because of where its headed on the line

    The second one is equal to becasue it's filled in. Once again X is less than this number beacause of which way it is going on the graph                    

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4a2 - 1
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Answers

I think that’s factoring

4.
What is the result of (f X g)(x) if
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Answers

Answer:

thank you

Step-by-step explanation:

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Answers

Answer:

first

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Answer:

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Answer:

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Step-by-step explanation:

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Answers

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Answers

Answer: sin(x) / cos(x)

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Answers

Answer:

240

Step-by-step explanation:

2*8*3*5

Answer:

160

Step-by-step explanation:

a P e X

The book store is having a sale. Every book is $5 off, regardless of the original price.

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B. y = × - 5

C. y = 5x

D. y = × ÷ 5

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Answers

Answer:

y=x-5

Step-by-step explanation:

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y = x - 5

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I took the test on A P E X

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Answers

Answer: 1.8 cans

Step-by-step explanation:

Answer:

1.85 cans of dog food.

Step-by-step explanation:

You need to divide 13 cans by 7 dogs.

25 points for correct answer and giving brainliest

Answers

Answer:

y=20x + 4

x = 6 (max amount)

20(6) = 120

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Max of 124.

y=20(0) + 4

y = 4

Min of 4.

Range

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G

ASAP please help me I need this quick
The question and answers are in the picture

Answers

Thé correct answer is the third one

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6

Step-by-step explanation:

PLZ HELP PLZ HELP PLZ HELP PLZ HELP PLZ HELPPLZ HELP

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Answer:

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Step-by-step explanation:

20 x 25 = 500

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