MATHEMATICS HIGH SCHOOL

What expression is equivalent to -5x^(2)-10x

Answers

Answer 1
Answer:

Good morning ☕️

Answer:

-5x(x + 2)

Step-by-step explanation:

the key is factoring:

-5x² - 10x = -5x × (x) - 5x × (2)  {here we notice that -5x is a common factor}

               = -5x(x + 2)

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:)
Answer 2
Answer:

Answer:

- 5 {x}^(2) - 10x \n = - 5 x(x + 2)

hope this helps you

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Luke is keeping track of the total number of hours he exercises. He started the summer having already put in 15 hours, and he then exercises 7 hours each week. The function to keep track of his exercise is f(x) = 7x + 15. What do the f(x) and x represent in Luke's situation? (2 points)A) f(x) represents the total number of hours; x represents the number of weeks he exercises this summer
B) f(x) represents the total number of weeks that he has exercised; x represents the number of hours
C) f(x) represents the number of hours he exercises per day; x represents the number of weeks
D) f(x) represents the total number of hours that Luke has exercised; x represents the number of weeks he exercises per day

Answers

If you would like to know what do the f(x) and x represent in Luke's situation, you can find this using the following step:

f(x) = 7x + 15
7 hours each week
x ... the number of weeks
f(x) ... the total number of hours Luke exercises

The correct result would be A) f(x) represents the total number of hours; x represents the number of weeks he exercises this summer.

f(x) represents the total number of hours; x represents the number of weeks he exercises this summer.

The Murphys’ gross annual family income is $120,500. Mr. Murphy referred to the graph shown below and calculated that his family will spend $28,920 on taxes this year. What is wrong with Mr. Murphy’s calculation?a.
He has calculated only federal taxes.
b.
He has calculated only state taxes.
c.
He does not need to include federal taxes.
d.
He does not need to include state taxes.

Answers

Mr. Murphy's calculation of the taxes they are to pay this year is wrong because a.  He has calculated only federal taxes.

There are several taxes that an employed person must pay including:

  • Federal income taxes
  • Federal social security taxes
  • State taxes

Mr. Murphy only calculated the federal taxes and did not include the state ones which are usually higher than the federal tax. Once he includes the state tax, his calculation will be correct.

In conclusion, state taxes need to be paid for as well.

Find out more on state taxes at brainly.com/question/1775528.

Answer:

A is your answer

Step-by-step explanation:

i just took the big exam

Luis has about 700 baseball cards. What is the greatest amount of cards Luis could have that would round to 700

Answers

Answer:

if you are rounding to the nearest 100 the answer would be 749 baseball cards. if you are rounding to the nearest 10 the answer would be 704 cards.

Step-by-step explanation:

If 8 men can chop down 28 trees in one day, how many trees can 20 men chop down in
one day?

Answers

The number of trees that 20 men chop down in one day will be 70.

What are ratio and proportion?

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

If 8 men can chop down 28 trees in one day.

Let 'x' be the number of trees.

We know that the ratio of man and tree will remain constant. Then the equation is given as,

28 / 8 = 20 / x

Simplify the equation, then we have

8 / 28 = 20 / x

x = 20 (28 / 8)

x = 70

The number of trees that 20 men chop down in one day will be 70.

More about the ratio and the proportion link is given below.

brainly.com/question/14335762

#SPJ2
28 / 8 = 3.5
20 x 3.5 = 70
20 men can chop down 70 trees

Fill two of the pools with water, Each pool will be filled to a depth of 5 feet. The other necessary dimensions are given below. How much water is necessary for each of the elements below? The isosceles triangle pool: height 20ft and base 35ft
The equilateral triangle pool: height 52ft and base 60ft

Answers

Find the volume of each pool. The formula for triangular prisms is length*width*height*1/2. Or, since your numbers give the base, you can just multiply the height and the base, then multiply by 5, then divide by 2 to get the answer.
So, 20*35*5/2 = 1,750 ft³ is the equation for the isosceles triangle, and the equilateral triangle pool is 52*60*5/2 = 7,800 ft³.
The volume = how much water you need for each pool.
Hope that answered your question.

Sean was at batting practice.He swung 25 times but only hit the ball 15 times

Answers

if u are asking how many times he missed it is 10 times bc 25 - 15 is 10
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