MATHEMATICS MIDDLE SCHOOL

Factor the numbers
x^{2} + 13x +36

Answers

Answer 1
Answer:

Answer:

(X+9)(x+4)

Step-by-step explanation:

Find 2 numbers that add to get the middle number and also multiply to get the last number

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What is 2 to the 13th power over 8.

Answers

2 to the 13th power = 8192
8192 divided by 8 = 1024

Isabella saved $15,000 and bought a car that cost $12,700. The insurance for the carwill cost $600 per year. How many full years will Isabella be able to pay for car
insurance with her remaining savings?

Answers

Answer:

3 full years

Step-by-step explanation:

First figure how much she has left over.

15,000-12700=2300

Each year insurance costs $600.

$2300/600 = 3.8

She almost has 4 years but can't quite pay the 4th year so the answer is 3 years.

HOW CAN 5 PEOPLE equally SHARE 4 BROWNIES IN FRACTION TERM?

Answers

Each person would receive in fraction 4/5 of a brownie.

To equally share four brownies among five people,

We need to divide the brownies into five equal parts.

We can represent this as 4/5 of a brownie per person.

To simplify this fraction, we can divide both the numerator and denominator by their greatest common factor,

Which is one. So, 4/5 is already in its simplest form.

Another way to represent this would be to convert the fraction into a mixed number, which is a whole number and a fraction.

To do this, we can divide 4 by 5, which gives us 0.8.

We can then convert this decimal into a mixed number by multiplying the decimal by 100 to get 80/100 and simplifying it to 4/5.

Therefore,

Each person would receive 4/5 of a brownie.

Learn more about the fraction visit:

brainly.com/question/5454147

#SPJ2
split each brownie into fifths then equally give a fifth to each brownie fifth is gone
should be four fifths per person
4=20/5
4/5 + 4/5 + 4/5 + 4/5 + 4/5 = 20/5

Name two different numbers that round to 8.21 when rounded to the nearest hundredth

Answers

Answer:

The two different numbers are 8.211 and 8.209 that round to 8.21 when rounded to the nearest hundredth

Step-by-step explanation:

Given : Number 8.21.

To find : Name two different numbers that round to 8.21 when rounded to the nearest hundredth?

Solution :

To round to the nearest hundredth, we use the thousandths place to determine whether the hundredths place rounds up or stays the same.

We have top round such that number became 8.21.

So, There are two ways to pick the number

1) The thousandths place value is greater than or equal to 5 and hundredths place is 0 then it round to required number.

Example - 8.205,8.206,8.207,8.208,8.209

2) The thousandths place value is less than 5 and hundredths place is 1 then it round to required number.

Example - 8.211,8.212,8.213,8.214

Therefore, The two different numbers are 8.211 and 8.209 that round to 8.21 when rounded to the nearest hundredth
There's an infinite amount of numbers that round to 8.21 when rounded to the nearest hundredth, for example:

8.211
8.209
8.214
8.21145683204
etc...

Just pick whichever two numbers you like :)

Linda did jumping jacks every night for a week.She did 75 on each of the first three nights and 2 times as many on each of the remaining nights.How many total jumping jacks did Linda do that week?​

Answers

Answer:

Total number of jumping Jacks by Linda in 7 days = 825

Step-by-step explanation:

Total number of days Linda jumped = 7 days

Now, for first 3 days, jumping jacks each day  = 75

So, total jumping jacks in first 3 days = 75 x 3 = 225

Now, number of days left in the week = 7 days - 3 days = 4 days

Also,  for next 4 days, jumping jacks each day  = 2 x 75 = 150

So, total jumping jacks in last 4  days = 150 x 4 = 600

Hence, the Total number of jumping Jacks in 7 day

= Jumping Jacks in fist 3 days + Number of jumping jack in last 4 days

= 225 +  600

= 825

Hence, Total number of jumping Jacks by Linda in 7 days = 825

Simplify (x − 4)(x2+ 5x + 2). x3 + x2 − 18x − 8 x3 + x2 + 22x − 8 x3 + 9x2 − 18x − 8 x3 + 9x2 + 22x − 8

Answers

Answer:

{x}^(3) + {x}^(2) - 18x - 8

Step-by-step explanation:

The given expression is:

(x - 4)( {x}^(2) + 5x + 2)

We need to expand using the distributive property:

x( {x}^(2) + 5x + 2) - 4( {x}^(2) + 5x + 2)

This implies that:

{x}^(3) + 5 {x}^(2) + 2x - 4 {x}^(2) - 20x - 8

Regroup similar terms and simplify:

{x}^(3) + {x}^(2) - 18x - 8

The first choice is correct.

Answer:  A) x³ + x² - 18x - 8

Step-by-step explanation:

  (x - 4)(x² + 5x + 2)

= x(x² + 5x + 2) - 4(x² + 5x + 2)

=   x³  + 5x² + 2x - 4x² - 20x - 8

=   x³ + (5x² - 4x²) + (2x - 20x) - 8

=  x³  +       x²        +     -18x      - 8
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