8th grade Math

a. Find the hemisphere’s diameter if its radius is 6 cm.
b. Find the hemisphere’s diameter if its radius is m.
c. Find the hemisphere’s diameter if its radius is 9.008 ft.
d. Find the hemisphere’s radius if its diameter is 6 cm.
e. Find the hemisphere’s radius if its diameter is m.
f. Find the hemisphere’s radius if its diameter is 9.008 ft.

Answer:

3/4 x 2/5

6/9 ÷ 4/7

Step-by-step explanation:

Answer:

explanation down below

18+3-5+6*4=

4+2*(18/3)=

7/7*2-10=

(8+9+10)+4*3/2=

25-7+6*2=

(2*3)*2/9=

(5*2)+4+4/9=

6*2/4+2=

5^2+5/6+10=

7^2+1/10+5/2=

Step-by-step explanation:

18+3-5+6*4=

18+3-5+24=

21-5+24=

16+24=

40

4+2*(18/3)=

4+2*6=

4+12=

16

7*2/7-5=

14/7-5=

7-5=

2

(8+9+10)+4*3/2=

27+4*3/2=

24+12/2=

24+6=

30

25-7+6*2=

25-7+12=

18+12=

30

I didn't finish sry

The ten expressions that requires BEMAS solution are:  + 3 x 2 - 5 ÷ 1

Now, let's solve each of these expressions using the BEDMAS rule:

(1) 4 + 3 x 2 - 5 ÷ 1 = 4 + 6 - 5 = 5

(2) 2 x 3 + 8 ÷ 4 - 1 = 6 + 2 - 1 = 7

(3) 10 ÷ 2 + 5 - 3 x 2 = 5 + 5 - 6 = 4

(4) 7 - 4 x 3 + 2 ÷ 1 = 7 - 12 + 2 = -3

(5) 5 x 2 + 4 - 6 ÷ 3 = 10 + 4 - 2 = 12

(6) 3 ÷ 1 + 4 x 2 - 7 = 3 + 8 - 7 = 4

(7) 6 - 2 ÷ 1 + 5 x 3 = 6 - 2 + 15 = 19

(8) 9 + 1 x 2 - 4 ÷ 2 = 9 + 2 - 2 = 9

(9) 12 ÷ 3 - 1 x 5 + 2 = 4 - 5 + 2 = 1

(10) 8 - 6 ÷ 2 + 3 x 1 = 8 - 3 + 3 = 8

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Answer:

Step-by-step explanation:

reason 1:

opening of brackets to solve the expression

reason 2:

in multiplication order is followed i.e. the number always lead the variable in the expression

reason 3:

for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable

reason 4:

the solved and simplified expression is delivered as a result

whats the question?????????

Answer:

i dont understand why people write these things and then dont even post a question

Step-by-step explanation:

Answer:

5x+6

Step-by-step explanation:

Distribute then add like terms.

Answer:

One number is positive, and the other is negative. The numbers are additive inverses. x + y = 0 -----> y = -x

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis

Answer:

8=729/3

Step-by-step explanation:

The exponent is not suppost to be there so middle ones are wrong and the first one is looking for the middle of the number that is even

Answer:

\( s = \sqrt[3]{729} \: in\)

Step-by-step explanation:

\( \because V= s^3 \)

\( \implies s= \sqrt[3]{V} \)

\(\huge \purple {\therefore s = \sqrt[3]{729} \: in} \)

Hope it helps you in your learning process.

Answer: First blank is 15 then 28 then 25 in the last blank.

Step-by-step explanation:

On the left side column it is going up by 5 and the right column is going up by 7.

Answer:

The least expensive is ham and the most expensive is Roast Beef.

Step-by-step explanation:

Answers rounded to the nearest cent.

Ham

\(\frac{14.50}{1.75}\) = $8.29

Ham costs $8.29 per pound

Turkey

\(\frac{26.25}{2.5}\) = $10.50

Turkey costs $10.50 per pound

Roast Beef

\(\frac{5.50}{\frac{3}{8} }\) = $14.67 per pound.

Answer:The least expensive is ham and the most expensive is Roast Beef.

Step-by-step explanation: I’m sorry if I didn’t explain if this did t help pls don’t report me!! But I do hope this help!

Answer:

10991

Step-by-step explanation:

(3×49×75)-34

11025-34

10991

Answer: Since you didn't exactly say what needed to be done I just simplified it for you. I got 10991.

Step-by-step explanation:

Answer:

6 m,11 m,5 m

Step-by-step explanation:

Answer:

Negative 2 Negative 4.5

Step-by-step explanation:

I am assuming we are starting from the origin (0,0,). "Go left 2 units", so -2 is our x value. "Go down 4.5 units" so -4.5 is our y value, therefore, -2, -4.5 is point P.

Step-by-step explanation:

Jeff spends $2.52 per gallon and buys 14 gallons, so his total expenditure is:

Total spent by Jeff = $2.52/gallon * 14 gallons = $35.28

Anna spends $2.16 per gallon and buys 15 gallons, so her total expenditure is:

Total spent by Anna = $2.16/gallon * 15 gallons = $32.40

To find the difference in their expenditures, we subtract Anna's total from Jeff's total:

Difference = Total spent by Jeff - Total spent by Anna

Difference = $35.28 - $32.40 = $2.88

Therefore, Jeff spends $2.88 more than Anna on gas.

Answer:

D

Step-by-step explanation:

19 - 14 = 5 / 14 x 100 = 35.714 > 36%

The other values by calculating the percent increase were

(from 2-3) = 31.57%

(from 3-4) = 32%

Greatest growth was between years 3 and 4. The growth between those years was about 32%.

percentage, a relative value indicating hundredth parts of any quantity.

Given table is  participation in a school's debate club during the last four years.

Year           1   2   3   4

Students   14 19 25 33

We need to find between which two years did the club see the greatest growth.

From year 1 and 2 the growth is increased by 5 (19-14)

year 2 and 3 the growth is increased by 6 (25-19)

year 3 and 4 the growth is increased by 8 (33-25)

So between 3 and 4 there is greatest growth.

Now let us find the percentage of the growth.

33-25/25

0.32×100

32%

Hence, greatest growth was between years 3 and 4. The growth between those years was about 32%.

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Explanation:

The data set is

{0,0,0,1,2,2,2,2,2,3,4}

The median is the middle-most value. To find it, cross off the outer pair of values until you narrow in on the median of 2. It should be the second copy of it. Check out the diagram below to see what I mean.

Then break up the set into

L = {0,0,0,1,2}

U = {2,2,2,3,4}

Each subset mentioned has 5 items. The diagram below also shows how set L and set U are formed. L is the stuff below the median, aka lower set. Set U is the upper set, which is stuff above the median.

The median of set L is 0, while the median of set U is 2

So we have the first and third quartiles of Q1 = 0 and Q3 = 2

The difference of these is the IQR

IQR = Q3 - Q1 = 2 - 0 = 2

For some reason, the number 2 shows up a lot in this problem.

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

The volume of the original box is given as

V = lwh

V = 10(6)(3)

V = 180 in³

Answer:

Or you could just solve for n and pick the choice that matches what you got :)

Step-by-step explanation:

Answer:

The answer would be .03. How I solved the problem is I moved the decimal of .21 two places to the right resulting in 3. Then I moved the decimal back after getting the answer resulting in .03

Step-by-step explanation:

Answer:

first box is 8 because 8 times 12 would equal 96

and second box is 12 because 4*3 would equal that

Step-by-step explanation:

Answer:

96 in = 8 feet

4 yd = 12 feet

Step-by-step explanation:

When converting inches to feet, we divide the number of inches by 12 because we know that there are 12 inches in 1 foot.

96 in / 12 in = 8 feet

When converting yards to feet, we multiply the number of yards by 3 because we know that there are 1 foot is equal to 3 yards

4 yd * 3 yd = 12 feet

Answer: 5/12

Step-by-step explanation:

Step 1

Whenever you have something OF  something, you just mulltiply.

1/3 of  5/8=  

1/3x5/8

5/24

She used 5/24, and started with 5/8

5/8-5/24= 5/12  left

\(\textsf {Finding the LCM of the 2 quantities :}\)

\(\implies \mathsf {3 \times 8}\)

\(\implies \mathsf {LCM = 24}\)

\(\textsf {Now, take the given quantites with our LCM as the denominator}\\\textsf {and subtract used value from the total :}\)

\(\implies \mathsf {\frac{5}{8} - \frac{1}{3} \times \frac{5}{8}}\)

\(\implies \mathsf {\frac{15}{24} - \frac{5}{24}}\)

\(\implies \mathsf {\frac{10}{24} = \frac{5}{12}}\)

\(\textsf {Therefore, Miranda will have}\)  \(\mathsf {\frac{5}{12}}\) \(\textsf {of the ribbon left. }\)

Answer:

Didn't I answer this for you already?

a) 1200 times

b)72.5 seconds

Step-by-step explanation:

in one second it will strike 1000/10=100 times

so in 12 seconds it will strike 100x12=1200 times

Answer:

415

Step-by-step explanation:

500/60=8.33

8.33x50=415

Answer:

The answer is 415 !!

Step-by-step explanation:

Answer:

the answer for the first #1 is 3/2 for the #2 its 25/16 for number #3 its 1/x^6

Step-by-step explanation

#1 apply the exponet rule a -¹ = 1/a

(2/3) ^-1 =1/2/3 Apply the fraction rule then you get 3/2

#2 (4/5)^-2 = 1/(4/5)^2 ,

(4/5)^2= 16/25

then you get your answer 25/16

#3 ((x/x^2)^3)^2 =(x/x^2) 3times 2

multiply the numbers 3 times 2 = 6

= (x/x^2)^6

(x/x^2)^6= x^6/(x^2)^6

simplify (x^2)^6: x^12

x^6/x^12(fraction)

x^6/x^12= 1/x^12-6

subtract the numbers 12-6=6

=1/x^6

Answer:

7/8 would be it !!