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Y_Kistochka [10]

3 years ago

13

You actually have to do this

lt="17\frac{1}{2}" align="absmiddle" class="latex-formula">% ÷ 360° × 100% PLease Do this fast

1 answer:

Nady [450]3 years ago

4 0

Answer:

$\frac{17}{72000degrees}$

Step-by-step explanation:

by my calculations I got 17/72000°. please mark brainliest

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The dot plot below shows the numbers of years of experience of the teachers at City High School.

gladu [14]

Answer: Between 14 and 18 years

Step-by-step explanation:

There are no dots in that area.

3 0

3 years ago

Antionie went on vacation to las vegas. his room cost $ 115.62 each night. his flight cost $45.70 and his flight home was $32.49

Zigmanuir [339]

115.62 times 3 equals 346.86
then both flights together would be 45.70 plus 32.49 equals 78.19
15 dollars a day for food times 4 equals 60
if he won 75 and lost 25 that would be like only winning 50
then you add them all up and subtract 50
346.86 + 78.19 + 60 - 50 equals 435.05

so he ended up paying 435.05

5 0

3 years ago

Find the probability of drawing a 10, replacing it, and drawing an ace.

lions [1.4K]

Assuming that you're talking about a standard deck of 52 cards, there are 4 tens and 4 aces.

So, at the beginning, you have probability 4/52=1/13 to draw a ten.

You replace, and you have an identical probability to draw an ace (you still have 4 favourable cases over 52 total cases).

Multiply the two probabilities to find the answer:

$\dfrac{1}{13}\cdot\dfrac{1}{13}=\dfrac{1}{169}$

6 0

3 years ago

A manufacturer of flashlight batteries took a sample of 13 batteries from a day’s production and used them continuously until th

kogti [31]

Answer:

A:

Step-by-step explanation:

***I'm pretty sure A should read "NO, because the test value 1.257 is less than the critical value 1.782. Please check the wording of the problem***

H0 : μ ≤ 400

Ha : μ > 400 (claim)

Sample mean: 6,155/13

Sample standard deviation: √44422.4359

Critical test value: t > 1.782

t = (6,155/13 - 400)/[(√44422.4359)/√13] = 1.257

1.257 < 1.782 ; we fail to reject the null hypothesis

There is not enough evidence at the 5% level of significance to support the claim that the mean battery life is at least 400 hours.

3 0

3 years ago

What is the solution set of 2x(x - 1) = 3?

garik1379 [7]

First you must distribute the 2x to the numbers inside the parentheses

(2x * x) + (2x * -1) = 3

$2x^{2}$ - 2x = 3

To make this a quadratic equation you can solve bring the 3 over to the left side of the equation by subtracting it to both sides

$2x^{2}$ - 2x - 3 = 0

Use the quadratic equation to solve this (image of the quadratic equation is below)

Remember that quadratic functions are set up like so:

$ax^{2} +bx +c = 0$

That means that in this equation...

a = 2

b = -2

c = -3

^^^Plug these numbers into the quadratic equation and solve...

$\frac{2+/-\sqrt{(-2)^{2}-4(2)(-3)}}{2(2)}$

$\frac{2 +/-\sqrt{4+24}}{4}$

$\frac{2+/-\sqrt{28} }{4}$

$\frac{2+/-2\sqrt{7} }{4}$

$\frac{1+/-\sqrt{7} }{2}$

Keep in mind that +/- is ±

$\frac{1+\sqrt{7} }{2}$

$\frac{1-\sqrt{7} }{2}$

^^^Exact answers

Approximations:

1.823

-0.823

Hope this helped!

~Just a girl in love with Shawn Mendes

8 0

3 years ago