1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nikolay [14]
3 years ago
9

Simplify each algebraic expression by combing like terms 7x^2-5x+10x-8x^2

Mathematics
2 answers:
castortr0y [4]3 years ago
8 0

Answer: -x^2 + 15x

Step-by-step explanation:

dangina [55]3 years ago
5 0
You just add the 7x^2 with the -8x^2 which gives you -x^2. Then you add the 10x with the -5x and get 5x.
You might be interested in
Chris is on vacation at a lake house for the
Leto [7]

Answer:

h=5

Step-by-step explanation:

10+38h=200

-10 -10

38h=190

divide 38 from each side

h=5

5 0
3 years ago
Una calidad de queso vale los 2/5 de $30.000; una segunda calidad vale 1/3 de $24.000 y una tercera calidad vale el doble de un
aev [14]

Answer:

2/5+1/3=6/15+5/15=11/15

30.000+24.000+15.000 =69.000

5 0
2 years ago
Problem PageQuestion
krok68 [10]

Answer:

Jennifer's height is 63.7 inches.

Step-by-step explanation:

Let <em>X</em> = heights of adult women in the United States.

The random variable <em>X</em> is normally distributed with mean, <em>μ</em> = 65 inches and standard deviation <em>σ</em> = 2.4 inches.

To compute the probability of a normal random variable we first need to convert the raw score to a standardized score or <em>z</em>-score.

The standardized score of a raw score <em>X</em> is:

z=\frac{X-\mu}{\sigma}

These standardized scores follows a normal distribution with mean 0 and variance 1.

It is provided that Jennifer is taller than 70% of the population of U.S. women.

Let Jennifer's height be denoted by <em>x</em>.

Then according to the information given:

    P (X > x) = 0.70

1 - P (X < x) = 0.70

    P (X < x) = 0.30

⇒  P (Z < z) = 0.30

The <em>z</em>-score related to the probability above is:

<em>z</em> = -0.5244

*Use a <em>z</em>-table.

Compute the value of <em>x</em> as follows:

          z=\frac{X-\mu}{\sigma}

-0.5244=\frac{x-65}{2.4}

          x=65-(0.5244\times 2.4)

             =63.7414\\\approx63.7

Thus, Jennifer's height is 63.7 inches.

3 0
3 years ago
What is x^5/7 written as a radical expression?
Alona [7]

Answer:

Step-by-step explanation:

If

n

is a positive integer that is greater than

x

and

a

is a real number or a factor, then

a

x

n

=

n

√

a

x

.

a

x

n

=

n

√

a

x

Use the rule to convert

x

5

7

to a radical, where

a

=

,

x

=

, and

n

=

.

7

√

x

5

5 0
2 years ago
The lcm of a set of numbers is equal to one of the numbers in the set.
Lana71 [14]
Then, the number must be greatest in the series.
4 0
3 years ago
Other questions:
  • I don't understand. Please explain or help me find the answer
    7·1 answer
  • ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️PLEASE PLEASE HELP
    14·1 answer
  • The ratio of paws to tails at the dog kennel is 4:1 , because for every 4 paws there is 1 tail. If there are 25 tails in the ken
    8·1 answer
  • 7. If f(x) = -8x +11, find f(-4).​
    5·2 answers
  • Tim has $250 in his account. This is $75 more than his brother Nate has in his account. Write and solve an addition equation to
    15·2 answers
  • Solve for x:<br> 1 1/5x−2 1/3&lt;1/7x+1 1/2
    15·1 answer
  • Which polygon appears to be regular?
    13·1 answer
  • Berto has $12 to put gas in his car. If gas costs $3.75 per gallon, which ordered pair relating number of gallons of gas, x, to
    6·2 answers
  • Which graph represents the system of inequalities?<br><br> y+2&lt;5x<br> y+3x&gt;4<br> y≥2x
    5·1 answer
  • What’s a other word for adjacent I need help
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!