Help please, I suck at maths

Answer:

Yes.

Step-by-step explanation:

Since he only sampled 50/400, 50 of 400 is 1/8.

7x8=56.

Answer:

[tex]\frac{56}{25}[/tex]

Step-by-step explanation:

Exact Form:

[tex]\frac{56}{25}[/tex]

Decimal Form:

2.24

Mixed Number Form:

[tex]2\frac{6}{25}[/tex]

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Answer:

It’s basically 3.

Step-by-step explanation:

Just subtract 9 - 6 which gets you a 3 since there’s a negative sign.

Answer: A

Step-by-step explanation: W is the opposite of Y, and X is the opposite of Z

Answer:

x=3

Step-by-step explanation:

To do this we need to do

10-4=6

Then we do

6/2=3

x=3

Answer:

3 runners will be in the last group

Step-by-step explanation:

So first you need to divide the 819 runners into 6 different groups. Once you do this... you get a total of 136. So there are 136 runners in each of the 6 groups. However, once you get to the end of the division problem, there is a remainder of 3. These three stand for the last 3 runners. Giving you your answer.

I hope this helps you!!!

Answer:

The slope is -3.

Step-by-step explanation:

To find the slope, you need to plug in the values of x and y into the slope formula.

y2 - y1/ x2 - x1

0 - 9 / 8 -5

-9/3

= -3

Answer:

7.25h=348

Step-by-step explanation:

Answer:

$23.61

per hoodie

Step-by-step explanation:

$188.88 divided by 8 = $23.61

Answer:

addition I think addition or division

Answer:

There are 3600 seconds in an hour.

non-statistical

Step-by-step explanation:

Their is 60 minutes in a hour. 1 minute is equally to 60 seconds.

60 * 60 = 3600

Everyone will say the same answer so it is non statistical.

Hope this helps!

Answer: (3) 11

ur welcome

Step-by-step explanation:

Answer:

A. 9 quarts

Step-by-step explanation:

Since he wants to triple the recipe you would multiply the 12 cups by 3 to get 36 cups and then you would convert the cups into quarts and 36 cups is equal to 9 quarts

Answer:

(34, 48)

Step-by-step explanation:

According to the Empirical Rule, 95% of normally distributed data lie within two standard deviations of the mean.  That, in turn, means 95% of the data in this problem lie within 2(3.5 min), or 7 min, of the mean:

41 - 7 < mean < 41 + 7, or

34 < mean < 48, or simply (34, 48)

Answer:

A) 30π mi²

Step-by-step explanation:

area of full circle = πr² = (3.14)(6²) = 113.04 mi²

area of 5π/3 segment = (113.04)(5π/3)/2π) = 94.2 mi² = 30π mi²

Answer:

x = -9

Step-by-step explanation:

mark helpfull give 5str and award brainliest

Answer:

x = -9

Step-by-step explanation:

4 = 4(x + 10)

=> 4/4 = x + 10

=> 1 = x + 10

=> x + 10 = 1

=> x = 1 - 10

=> x = -9

Answer:

i cant give a graph but i can give you a slope formula (although theres no set y intercept so \/

. y=7x

Step-by-step explanation:

rise over run is 7/1(means go up 7 and right 1 then place the point), you put time along the x and amount along the y

Answer:

85

Step-by-step explanation:

Scott took 7* math tests in one semester. His scores were 89 , 73 , 84 , 91 , 87 , 77 , 94.

Find the mean. To solve for the mean, add all the scores together, and divide by the amount of tests he took:

(89 + 73 + 84 + 91 + 87 + 77 + 94)/7

(595)/7 = 85

Scott's mean test score is 85.

~

Answer:

85

Step-by-step explanation:

1. Add up all the numbers

=595

2. Dvivde it by how many numbers their are.

=7

3. Divide

595/7

=85

Answer:

B. Polyhedron, D. Solid, C. Prism.

Step-by-step explanation:

Yw !

Answer:

3445!

Step-by-step explanation:

hI swear i rember tis question!

Answer:

d. 2x+3

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

Step-by-step explanation:

16.76FT^3

Answer: 1404

Step-by-step explanation:

V=πr^2h

(3)(6)^2(13)

(3)(36)(13)=1404

Answer:

The first answer is Surface Area and the second answer is Volume.

Step-by-step explanation:

Remember that Surface Area is the sum of ALL surfaces on a 3D shape. Volume is the amount of space of a three dimensional figure, which is measured in cubic units.

My Explanation:

The first one is surface area because the cube is a 3D shape and it is measured by 5in. The second one is volume because it has three dimensions: 15 inches by 12 inches by 3 inches and it is measured in cubic units.

I hope this answers your question! :)

Answer: Surface area, Volume

Step-by-step explanation:

Answer:

First term: a

Second term: a+d

Third term:a+2d

Step-by-step explanation:

An expression that can model the first three terms of any arithmetic sequence in terms of just a and d is aₙ = a + (n - 1)d.

An ordered group of numbers with a shared difference between each succeeding term is known as an arithmetic sequence. For instance, the common difference in the arithmetic series 3, 8, 13, 18, and 23 is 5. An arithmetic progression is another name for an arithmetic sequence.

Let the a be the initial term of a sequence and d be the common difference, then the nth term of any arithmetic sequence can be written as aₙ = a + (n - 1)d.

If we want first three terms of any arithmetic sequence, then we have to put n = 1, 2, 3 in the above expression.

So, for n = 1, a₁ = a + (1 - 1)d = a + 0d = a

for n = 2, a₂ = a + (2 - 1)d = a + d

for n = 3, a₃ = a + (3 - 1)d = a + 2d

Therefore, an expression that can model the first three terms of any arithmetic sequence in terms of just a and d is aₙ = a + (n - 1)d.

Learn more about arithmetic sequences here -

https://brainly.com/question/14036363

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