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3 years ago

What is (-94)÷5+22÷22's square?

Mathematics

1 answer:

Paha777 [63]3 years ago

5 0

Answer:

Error

Step-by-step explanation:

(-94)/5+22/22 Given

-18.8+1 PEMDAS (do -94/5 and 22/2)

-17.8 Add the numbers

After you add the numbers, you take the square root. you will get the answer "Error" because you cannot take the square root of a negative number

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Can anyone please help me with 8th grade math? I will give BRAIN!!!

Anit [1.1K]

The given percentage scores are:

80 , 92 , 91 , 75 , 89 , 84 , 0 , 85

A. Calculate the average

So, the average = (sum of the scores)/(number of the scores)

Sum of the scores = 80 + 92 + 91 + 75 + 89 + 84 + 0 + 85 = 596

The number of the scores = 8

So,

The average = 596/8 = 74.5%

Does the average score really represent her abilities ?

No, because there is outlier which is ( 0 ) which mean it may be absent this test

the other scores are within 75 and 92

Which mean the average is less than the reasonable minimum score

====================================================================

B. Brandee received 78% at the missed test

so, we will find the new mean:

The new sum of the scores = 80 + 92 + 91 + 75 + 89 + 84 + 78 + 85 = 674

The new mean = 674/8 = 84.25%

====================================================================

C. What different did 0% score make ?

So, 0% give us not accurate representation of the student abilities

Does this new mean represent her abilities accurately ?

Yes

7 0

1 year ago

10 points help due tomarrow

strojnjashka [21]

Answer:

$\boxed{0.2}$

Step-by-step explanation:

Convert $\dfrac{12}{60}$ to a decimal

Step 1. Reduce the fraction to its lowest terms.

Divide both numerator and denominator by their greatest common factor (12)

$\dfrac{12}{60} =\dfrac{1}{5}$

Step 2. Convert the denominator to a power of 10

Multiply both numerator and denominator by 2.

$\dfrac{1}{5} \times \dfrac{2}{2} = \dfrac{2}{10}$

Step 3. Divide the numerator by the denominator

Dividing by 10 moves the decimal point one place to the left.

$\dfrac{2}{10} = \boxed{0.2}$

4 0

3 years ago

Tu went to the movies. he bought 2 tickets for $ 9.50 each, popcorn for $ 5.00, and 2 drinks for $ 4.25 each. He give the clerk

alexandr1967 [171]

Answer:

Option A - $ 40.00 - $9.50 - $4.25 - $5.00

Step-by-step explanation:

Given : Tu went to the movies. he bought 2 tickets for $ 9.50 each, popcorn for $ 5.00, and 2 drinks for $ 4.25 each. He give the clerk two $ 20.00 bills.

To find : Which expression can not be used to find the amount of changes Tu got?

Solution :

He give the clerk two $ 20.00 bills i.e. $2\times 20$ or 40

He bought 2 tickets for $ 9.50 each i.e. $-(2\times 9.50)$ or -9.50-9.50

Popcorn for $ 5.00 i.e. $-5$

2 drinks for $ 4.25 each i.e. $-(2\times 4.25)$ or -4.35-4.25

The expression can not be used to find the amount of changes Tu got is

' $ 40.00 - $9.50 - $4.25 - $5.00'.

Therefore, option A is correct.

3 0

3 years ago

Is 5x+6y=1 a direct variation? (yes or no only)

aleksandr82 [10.1K]

Direct variation is y=kx
indirect variation is y=k/x

if we can get it into that form, then it is

5x+6x=1
6y=-5x+1
y=(-5/6)x+1/6
yes

-4x+9y=4
9y=4x+4
y=(4/9)x+4/8
yes

5 0

3 years ago

Josue bought seven boxes. A week later half of all his boxes were destroyed in a fire.

fgiga [73]

Answer:

he started with 44 boxes

6 0

3 years ago