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2 years ago

Bo

Mathematics

1 answer:

Elenna [48]2 years ago

7 0

If you use the scientific notation to simplify these bigger numbers it will make it easier

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The x-intercepts of a parabola are 5 and -7. What is the equation of the axis of symmetry?

zloy xaker [14]

X=-1
The axis of symmetry will be directly in the middle of the intercepts.

4 0

2 years ago

Find the mean and standard deviation for the set of data.

dem82 [27]

The mean and standard deviation for the set of data will be 16 and 5.87. Then the correct option is A.

<h3>What is a standard deviation?</h3>

It is the measure of the dispersion of statistical data. Dispersion is the extent to which the value is in a variation.

The set of data is given below.

16, 22, 8, 5, 20, 18, 14, 17, 24

The mean of the data set will be

μ = (16 + 22 + 8 + 5 + 20 + 18 + 14 + 17 + 24) / 9

μ = 144 / 9

μ = 16

Then the standard deviation of the data set will be

$\rm \sigma = \sqrt{\dfrac{\Sigma (x_i - \mu)^2}{n}} \\\sigma = \sqrt{\dfrac{(16 - 16)^2 +(22 - 16)^2 + (8-16)^2 + ......+(24-16)^2 }{9}} \\\sigma = \sqrt{\dfrac{310}{9}}\\$

Simplify the expression further, then we have

σ = √34.44

σ = 5.87

The mean and standard deviation for the set of data will be 16 and 5.87.

Then the correct option is A.

More about the standard deviation link is given below.

brainly.com/question/12402189

#SPJ1

3 0

1 year ago

The expression (q16)(q−5)2 is equivalent to qn. What is the value of n? 42 22 -160 13

Lelu [443]

Answer:

Step-by-step explanation:

In order to get one of the answer choices, it appears we need to interpret your input as ...

$(q^{16}q^{-5})^2 = (q^{16-5})^2=q^{11\cdot 2}=q^{22}$

The value of n is 22.

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

(a^b)^c = a^(bc)

8 0

2 years ago

Whats 9+10 answer now or die

Rainbow [258]

Answer:

The answer is 21 ,

Step-by-step explanation:

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3 0

2 years ago

Read 2 more answers

For right triangle , triangle rst shown below, what is tan r

-Dominant- [34]

You know, it would really be helpful if we could have a peek at
the picture that's "shown below". Just a peek would be enough.
Right now, the only thing I see below is my dog.

Now ... follow me here ... if you're looking for tan(r), then 'r' is
one of the angles in the triangle, and I'm guessing that all three
of those letters are angles.

tan(r) is going to be the ratio of two of the sides ... I mean

(one side) divided by (another side).

There's no way to go any farther, because you haven't given us
any names for the sides, or any way to describe them.

Betcha the names of the sides are on that picture that's supposed
to be shown below.

8 0

3 years ago