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
Flauer [41]
2 years ago
11

Find what % of 70 is 12​

Mathematics
1 answer:
marshall27 [118]2 years ago
4 0

Answer:

Percentage Calculator: 12 is what percent of 70? = 17.14.

Step-by-step explanation:

plzzzzzzz Mark my answer in brainlist

and follow me

You might be interested in
5. The superintendent of the local school district claims that the children in her district are brighter, on average, than the g
anygoal [31]

Answer:

We conclude that children in district are brighter, on average, than the general population.

Step-by-step explanation:

We are given the following data set:

105, 109, 115, 112, 124, 115, 103, 110, 125, 99

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{1117}{10} = 111.7

Sum of squares of differences = 642.1

S.D = \sqrt{\frac{642.1}{49}} = 8.44

We are given the following in the question:  

Population mean, μ = 106

Sample mean, \bar{x} = 111.7

Sample size, n = 10

Alpha, α = 0.05

Sample standard deviation, s = 8.44

First, we design the null and the alternate hypothesis

H_{0}: \mu = 106\\H_A: \mu > 106

We use one-tailed(right) t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{111.7 - 106}{\frac{8.44}{\sqrt{10}} } = 2.135

Now,

t_{critical} \text{ at 0.05 level of significance, 9 degree of freedom } = 1.833

Since,                  

t_{stat} > t_{critical}

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

We conclude that children in district are brighter, on average, than the general population.

4 0
3 years ago
With one<br> do I pick<br> the right on e
katen-ka-za [31]
The answer is

B) 2n - 5

because it's -5 than twice the width (2n)
8 0
3 years ago
How do you write 125.06 million dollars in at least four different ways.
Ludmilka [50]
$125,060,000

one-hundred twenty-five million, and sixty thousand dollars

I mean 125.06 in fraction form is 6253/50, if that works great.

125.06 million dollars, if you can use the number in the question.
5 0
3 years ago
Read 2 more answers
What is the sum of the geometric series in which a1 = −5, r = 3, and an = −405?
xxMikexx [17]
a_1=-5;\ r=3;\ a_n=-405\\\\a_n=a_1r^{n-1}\\\\subtitute\\\\-5\cdot3^{n-1}=-405\ \ \ |divide\ both\ sides\ by\ (-5)\\\\3^{n-1}=81\\\\3^{n-1}=3^4\iff n-1=4\to n=5\\\\S_n=\dfrac{a_1(1-r^n)}{1-r}\\\\S_5=\dfrac{-5(1-3^5)}{1-3}=\dfrac{-5(1-243)}{-2}=\dfrac{5\cdot(-242)}{2}=5\cdot(-121)=-605\\\\\\Answer:\boxed{S_5=-605}
4 0
3 years ago
Evaluate F(1)
KonstantinChe [14]

ANSWER

B. 1

EXPLANATION

The given function is

f(x) =\left \{ {{x^{2} +3 (if) -5 \leq x< 1} \atop {x (if) 1 \leq x \leq 5 }} \right.

This is a piece-wise defined function.

We want to find f(1)

We substitute x=1 into f(x)=x because, 1 belongs to the interval,

1≤x≤5

f(1)=1

The correct answer is B.

8 0
3 years ago
Other questions:
  • 4√6 •√3 how do I show work for this because the answer is 2√12​
    11·1 answer
  • Help me with number 19 please!
    15·1 answer
  • If x4 + 4y = 8xy, then dy/dx=
    11·1 answer
  • How do u do find vertices of dilation if the factor is k =3
    11·1 answer
  • Solve for x.<br> 6x - 3 + 2x = x + 7 +7x<br><br> A. 5/2<br> B. 5<br> C. -5/2<br> D. no solution
    14·1 answer
  • Ericka observed the total variation in the water level over 6.2 years to be −13.64 mm. She compared this to the average annual t
    11·1 answer
  • 1) The endpoints of AB are A(-3, 8) and B(4,5). If AB is
    12·1 answer
  • What is the solution to the system of equations?
    13·1 answer
  • Thanks to whoever can help me!
    5·2 answers
  • Find the rate of change in the water height with respect to the number of marbles from one row in the table to the next. What do
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!