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2 years ago

Helppppppppppppfpvkvkkvmvmvmvmvmvmgmvm

Mathematics

2 answers:

zepelin [54]2 years ago

6 0

Answer:

I think it's 2.56

you convert the 8 percent to a decimal and then you times it to 3.20

3.20×.8=2.56 (it's wrong)

Papessa [141]2 years ago

6 0

Answer:

$2.94

Step-by-step explanation:

8% of 3.20 is .26

3.20 - .26 = 2.94

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30% × 750 = (30 ÷ 100) × 750 = (30 × 750) ÷ 100 = 22,500 ÷ 100 = 225;

Deffense [45]

Answer:

SOLVE IT UR SELF OR GET A CALCULATOR

Step-by-step explanation:

*urinates on ur property*

ANSWER : 225, 225, 225, 225, 225

7 0

2 years ago

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0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl

balandron [24]

Answer:

The first step is to determine the average

$x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475$

The exercise says it’s a normal distribution: (n=8)

$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained

$t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\ t= -0,3860$

The variable t has 7 grade to liberty, we calculate the p-value as:

$2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108$

This value is very high, therefore the hypothesis is not rejected

7 0

3 years ago

Help me out please !!!

IgorLugansk [536]

Answer:

5/1

Step-by-step explanation:

Cause I say so. Rise/run is rate of change.

6 0

2 years ago

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Which expression is equivalent to -8? A=-2^-3 B=(-1/2)^-3 C=(1/2)^-3 D=2^-3

sladkih [1.3K]

Answer:

The answer is option B.

Step-by-step explanation:

$( - \frac{1}{2} ) ^{ - 3} = ( - 2) ^{3} = - 8$

Hope this helps you

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2 years ago

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A fair coin is tossed three times.

qaws [65]

B 2/3
A 3/3. Hsheikdkekekekld

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3 years ago

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