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
dimulka [17.4K]
1 year ago
9

Please help and show work thank you love you bye

Mathematics
2 answers:
amm18121 year ago
7 0
Answer: 5
Explanation:
7.7 - 3.11 = 4.59
U round up 4.59 and it equals 5
NISA [10]1 year ago
5 0
<h2>5</h2>

To estimate, round the both numbers to the nearest whole numbers:

7.7 → 8

3.11 → 3

Then, subtract 3 from 8. We get:

8 – 3 = 5

We get the final result:

<h3>5</h3>

<em>Hope this helps :)</em>

You might be interested in
Mckinney donated 9 soda bottles to the after
Papessa [141]

Answer:

33%

Step-by-step explanation:

9 - 6 = 3

3 / 9 = 0.33

0.33 x 100 = 33%

Amount of what you have divided by the total amount of something, times by 100 gives you the percentage

4 0
3 years ago
Read 2 more answers
will ran four miles on his first day of training t next day he ran one third that distance how far did he run the second day
andrew11 [14]
<span>(1/3) * 4 = 4/3 = 1 and 1/3 miles</span>
4 0
3 years ago
What is the mean, median, interquartile range, and standard deviation of 20, 20, 28, 28, 30, 30, 30, 36, 36, 40, 40
Kazeer [188]
Median is 30 range is 20 and that's all I'm gonna do sorry I have my own math hope I helped
4 0
3 years ago
4TH TIME ASKING THIS!!! Please help me! Someone pleaseeee. I need the correct answers. I don’t want to fail
Alexeev081 [22]

Answer:

The functions are inverses; f(g(x)) = x ⇒ answer D

h^{-1}(x)=\sqrt{\frac{x+1}{3}} ⇒ answer D

Step-by-step explanation:

* <em>Lets explain how to find the inverse of a function</em>

- Let f(x) = y

- Exchange x and y

- Solve to find the new y

- The new y = f^{-1}(x)

* <em>Lets use these steps to solve the problems</em>

∵ f(x)=\sqrt{x-3}

∵ f(x) = y

∴ y=\sqrt{x-3}

- Exchange x and y

∴ x=\sqrt{y-3}

- Square the two sides

∴ x² = y - 3

- Add 3 to both sides

∴ x² + 3 = y

- Change y by f^{-1}(x)

∴ f^{-1}(x)=x^{2}+3

∵ g(x) = x² + 3

∴ f^{-1}(x)=g(x)

∴ <u><em>The functions are inverses to each other</em></u>

* <em>Now lets find f(g(x))</em>

- To find f(g(x)) substitute x in f(x) by g(x)

∵ f(x)=\sqrt{x-3}

∵ g(x) = x² + 3

∴ f(g(x))=\sqrt{(x^{2}+3)-3}=\sqrt{x^{2}+3-3}=\sqrt{x^{2}}=x

∴ <u><em>f(g(x)) = x</em></u>

∴ The functions are inverses; f(g(x)) = x

* <em>Lets find the inverse of h(x)</em>

∵ h(x) = 3x² - 1 where x ≥ 0

- Let h(x) = y

∴ y = 3x² - 1

- Exchange x and y

∴ x = 3y² - 1

- Add 1 to both sides

∴ x + 1 = 3y²

- Divide both sides by 3

∴ \frac{x + 1}{3}=y^{2}

- Take √ for both sides

∴ ± \sqrt{\frac{x+1}{3}}=y

∵ x ≥ 0

∴ We will chose the positive value of the square root

∴ \sqrt{\frac{x+1}{3}}=y

- replace y by h^{-1}(x)

∴ h^{-1}(x)=\sqrt{\frac{x+1}{3}}

4 0
3 years ago
The monthly cost of a short term disability insurance policy varies directly as the salary of the employee. Wanda has an annual
arlik [135]

Answer: $14.85

Step-by-step explanation:

Ww can solve the question using direct proportion with the formula y = kx

where y = annual salary

x = monthly policy cost.

k = constant of proportionality

Since y = kx

38500 = 11.55k

k = 38500 / 11.55

k = $3333.33

When Randy has an annual salary of $49,500, the amount Randy expect to pay for his policy will be:

y = kx

49500 = 3333.33x

x = 49500 / 3333.33

x = 14.85

The amount that Randy expect to pay for his policy will be $14.85

8 0
2 years ago
Other questions:
  • Suppose p varies directly as d, and p = 2 when d = 7. What is the value of d when p = 10?
    5·2 answers
  • What is a slope of a line passing through the points (5.3) and(7,-2)
    12·2 answers
  • Simplify the expression<br> 9(10 + 5) / (6 - 5)<br><br> A.95<br> B.135<br> C.85<br> D.17
    5·2 answers
  • State the degree of the polynomial -x4
    9·1 answer
  • Evaluate the following equation In which C stands for Combinations : <br><br> 60C₃/15C₃
    7·1 answer
  • This one is also giving me a hard time
    11·1 answer
  • 08- O ponto de encontro do eixo x com eixo y , indicado pelo par ordenado ( 0;0) . É Chamado de : *
    12·1 answer
  • In a geometric sequence, the ratio between consecutive terms is...
    7·1 answer
  • 14 + 6x = 68<br> What does c equal
    8·2 answers
  • Simplify <br><br> 6 ÷ 3 + 32 · 4 − 2
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!