3 years ago

Maths ,Please help with mark brainliest

1 answer:

4 0

In the table states the frequency of the marbles. It says in the 40 tries she had a frequency of 24 marbles that are yellow and for green it states the frequency is 16 marbles for green.

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I really need this ASAP! what is 14 2/7 as a fraction

nlexa [21]

Multiply 14 by the denominator of the fraction.

14 • 7 = 98

Then add it to the numerator.

98 + 2 = 100

Your answer is 100/7

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3 years ago

What happens to the minimum point of f(x) = x2 + 5x + 2, when it is changed to f(x) = 5x2 + 5x + 2?

Aleonysh [2.5K]

The answer is B) it shifts up and to the right

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3 years ago

the length of a rectangle is 8in. more than it’s width. the perimeter of the rectangle is 88in. what are the width and length of

bixtya [17]

Step-by-step explanation:

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3 years ago

According to the scores on the last math test, 80%, or 20, of the students in the class received an A. Find the number of studen

Sladkaya [172]

80% is the same as 4/5, so 4/5 of the class= 20. That means that if there was a picture, 4 parts would be shaded, and 1 would not. 1/4 of 20 is 5, so 1 part= 5 people. 5 x 5 = 25. 25 is the answer. :)

8 0

3 years ago

Read 2 more answers

Standard deviation of 300, 785, 670, 187, 760, 724

White raven [17]

STEP 1

Mean = $\frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571$

STEP 2

Subtract the mean from each data value then square the answer
$300-571=-271$ ⇒ $(-271)^{2} =73441$
$785-571=214$ ⇒ $(214)^{2}=45796$
$670-571=99$ ⇒ $(99)^{2}=9801$
$187-571=-384$ ⇒ $(-384)^{2} =147456$
$760-571=189$ ⇒ $189^{2}=35721$
$724-571=153$ ⇒ $153^{2} =23409$

STEP 3

Add the squared answers in STEP 2 then find the mean

$\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3$

STEP 4

Square root the answer in STEP 3
$\sqrt{55937.3} =236.5$

Standard deviation is 236.5

7 0

3 years ago