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
nydimaria [60]
3 years ago
5

Help please :) much appreciated

Mathematics
1 answer:
Svet_ta [14]3 years ago
4 0

Answer:

x^2 +2x -5

Step-by-step explanation:

f(x) = 2x+3

g(x) = x^2 -8

f(x)+g(x) =  2x+3+ x^2 -8

Combine like terms

             = x^2 +2x -5

You might be interested in
What is the answer to this problem
Elden [556K]
I think when you have a fraction like that, you multiply the denominator on both sides obviously by the first step

1 - 3x/5 = -7

Multiply on both sides
1 - 3x/5 * 5 = -7 * 5

and Solve
1 - 3x = -35

Subtract 1 from both sides of the equation
-3x = -36

Divide both sides by -3
-3x / -3 = -36 / -3 (← answer)
x = 12

Hope it helps
4 0
3 years ago
What is the volume of a pyramid that is 15mm , 18mm , 21mm in cubic millimeters
Ugo [173]

Answer:

V=1890mm

Step-by-step explanation:

You must use its formula: which is

V=(Length x height x width) / 3

V=(15x18x21)/3

V=5670/3

V=1890mm

3 0
2 years ago
Read 2 more answers
Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was
andrezito [222]

Answer:

The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 100, p = 0.42

92% confidence level

So \alpha = 0.08, z is the value of Z that has a pvalue of 1 - \frac{0.08}{2} = 0.96, so Z = 1.75.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 1.75\sqrt{\frac{0.42*0.58}{100}} = 0.3336

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 1.75\sqrt{\frac{0.42*0.58}{100}} = 0.5064

The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).

4 0
3 years ago
Hector added 30.24 + 16.26. His work is shown.
Yuki888 [10]

Answer:

He did not regroup hundredths when adding digits

Step-by-step explanation:

30.24

+16.26

-----------

46.50

It can't be the first two, and because .04+.06 are hundredths, it must be the third one.

He did not regroup hundredths when adding digits.

7 0
3 years ago
Read 2 more answers
A real estate broker's base salary is $18,000. She earns a 4% commission on total sales. How much must she sell to earn $55,000
evablogger [386]

The salary of the real estate broker = $18,000

Commission earned on total sales = 4% or 0.04

Total income earnings = $55,000

Let the total sales be = x

Equation becomes :

18000+0.04x=55000

0.04x=55000-18000

0.04x=37000

x=925000

Hence, the real estate broker must sell $925,000 worth of real estate to earn $55,000.

6 0
3 years ago
Other questions:
  • If the diameter of the circle is 11 inches, then the radius will be _____ inches.
    8·2 answers
  • Twelve mangoes are to be shared in the ratio of 2:3:1.How many mangoes will each person get​
    9·1 answer
  • Plslllsss helllolpllll
    15·1 answer
  • 2x - 3y --24<br> x + 6y = 18<br> Substitution
    5·1 answer
  • Jose and a group of friends bought concert tickets for $257. The booking agency also charged a fee, bringing the total cost to $
    7·1 answer
  • Slove this plzzzzzzz
    6·1 answer
  • Replace each ? with an expression that will make the right side of the equation equivalent to the right side.
    5·2 answers
  • (I WILL GIVE BRAINLIEST) PLEASE HELP!
    7·2 answers
  • Lindy works at a pizza restaurant and gets a 10% employee discount. She knows that if she orders d drinks and a medium pizza wit
    13·1 answer
  • A number is greater than 8. The same number is less than 10. The inequalities x greater-than 8 and x less-than 10 represent the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!