Mathematics Middle School

I need help!!
Determine if these questions are valid conclusions for sampling or if their invalid. (why or why not)

I Need Help!!Determine If These Questions Are Valid Conclusions For Sampling Or If Their Invalid. (why

Answers

Answer 1

Answer:

1st is valid 2nd is not valid

Step-by-step explanation:

Related Questions

Help me please dew in 5

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Can you plz take a better pic it’s hard to see

Answer:

c d and e ar correct

Step-by-step explanation:

who ever gets this right will get a brainlest

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Answer:

the answer is $122.00

sorry for getting it wrong before

Step-by-step explanation:

Answer:

$122

Explanation:

so there for 12.5%=15.25

percent means parts out of 100

12.5%=12.5/100=0.125/1

0.125 of money=15.25

'of' means multiply

0.125 times money=15.25

divide both sides by 0.125

money=122

BrainlyEst please

Please help this is due soon!! NO LINKS!!

The volume of a cone with a height of 10 meters is 20pi cubic meters. What is the diameter of the cone? Round your answer to the nearest tenth.​

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Answer:

2.4

Step-by-step explanation:

Answer is 2.4
Hope this helps

Help me out pls

thanks!

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The answer is 2 I hope this is right

A rectangle measures 2 4/5 inches by 2 4/5 inches. What is its area? Answer in a mixed number. WILL MARK BRAINLIEST

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7 21/25

2 4/5 x 2 4/5 = 7 21/25

The airports in the United States serve more than 635,000,000 people each year. Which of the fallowing is the same number written in scientific notation?

f. 635*10^6
g. 6.35*10^-8
h. 6.35*10^8
j. 6.35*10^9

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It’s actually H 6.35 *10^8

PLEASE HELP ASAP!!! I WILL AWARD BRAINLIEST!!

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y=2x the slope is 2 lol
The answer is y=2x+0

A random sample of dogs at different animal shelters in a city shows that 12 of the 65 dogs are puppies. The city's animal shelters collectively house 1,690 dogs each year. About how many dogs in all of the city's animal shelters are puppies?

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65 because you add then subtract so the you go back to 65
1690 divided by 65 = 26
26 x 12 = 312

Tony is making chicken enchiladas. He needs 1/8 jar of sauce for each enchilada. How many whole enchiladas can he make with 5/6 jar of sauce?

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Answer:

7

Step-by-step explanation:

7 whole enchiladas he can make with 5/6 jars of sauce.

Given that, Tony is making chicken enchiladas. He needs 1/8 jar of sauce for each enchilada.

We need to find out how many whole enchiladas can he make with 5/6 jars of sauce.

How to divide two fractions?

The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. Finally, simplify the fractions if needed.

Based on the given condition we can formulate: 5/6 ÷ 1/8

=5/6 × 8

=5/3 × 4

= 20/3

=6.666≈7

Therefore, 7 whole enchiladas he can make with 5/6 jars of sauce.

To learn more about the division of fractions visit:

https://brainly.com/question/17205173.

#SPJ2

Can someone help me? Will mark brainlist!

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Answer:

The total surface area for the left block is 235.2

Step-by-step explanation:

multiply all the sides then add them together

It’s 235.2!!!!
Just multiply all sides then add

I will mark as brainliest!

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So Nelly gets £8 an hour for the first 15 hours, so you have to find the product of 8 and 15 which is £120. Then she gets an extra £10 for every extra hour, so we have tl subtract 15 hours from how many total she worked. To do that, we first have to add all of the hours together which would be 22 hours. Then we have to subtract the 15 which is 7 hours. However, the 5 hours on Saturday are going to pay double so we will calculate that afterwards. so 7 minus 5 is 2. Nelly gets paid £8 pounds for every hour so she gets £16 for 2 hours. Now, since are doubling £8 we get £16. So Nelly gets paid £16 an hour for the hours she worked on Saturday. 5 times 16 is £80. Now we add it all together. £120 + £16 + £80 = £216

Hope this helps :)

Find the surface area. Show work.

Answers

Step-by-step explanation:

first you'll have to cut the triangle in half to make the right angle. when u do the side is whatever the num is 132-??= thats the answer. and then add all of the area nums and then u get the num

hi there i just finished learning this!! anyways here’s the solution for the problem i also drew it as a net incase you’re a visual learner:) here is the formula for finding the area of a rectangle and a triangle if you need it:
: A=bh x height
rectangle: l x w=A
since a triangular prism is made up of 3 rectangles and 2 triangles, add up the answers of their multiplied numbers and it equals the SA. (total SA of you problem is 746)

a) A number is greater than -4 and less than 9. What is the least integer value of this number?
b) What is the greatest possible integer value of this number?

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Answer:

5

Step-by-step explanation:

because of you use a number line -4 is 5 points away from 9

Positive

5 because you use a number line

3)who ever gets this right will get a brainlest

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Answer:

321.25

Step-by-step explanation:

The answer would be 321.25

Please HELP ME!

9 1/2 ÷ 3 7/10 = ?

A. 3 21/37

B. 3 5/7

C. 2 21/37

D. 2 5/7


Which choice is it? A, B. C, or D?

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Answer:

C. 2 21/37

Step-by-step explanation:

Answer:C

Step-by-step explanation: :)

I need help......
25 points

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Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

pls help due in 10 mins

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Answer:

B

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The answer is A.

Find the area of the shape shown below

please any ty:)

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Answer:

240

Step-by-step explanation:

Answer:

240²

Step-by-step explanation:

Okay, so we can split this up into the triangle at the top, and the rectangle on the bottom, so:

4 x 20 ÷ 2 = 40

20 x 10 = 200

40 + 200 = 240

so the area of the shape is 240²

hope this helps:)

Please help me. and thanks

Answers

Answer:

oh dang. I just realized what it was XD

Step-by-step explanation:

you got it lol delete this so no1 stills your points

Give me points AHHHHHGGGG

( I have a couple of questions and I don't want to make separate ones and waste points)
Q1. A large can of soup contains 19 fl. oz. A serving is about 8 oz. How many cans should you buy if you want to serve 7 people?
Q2. A container of strawberry ice cream holds 36 fl. oz. A container of chocolate ice cream holds 2 pt. Which one has more ice cream? How much more?
Q3. A day-care worker wants to give 15 children each 6 fl.oz. of milk. How many quarts of milk does she need?
Q4. This morning, the day-care supervisor bought 3 gal. of milk. the kids drank 2 gal. 3 c. How much milk is left for tomorrow?
Q5. Harriet bought 3 gal. 2 qt. of paint for her living room. She used 2 gal. 3 qt. How much paint is left over?
Q6. Jason's favorite punch takes a pint of raspberry sherbet. If he wants to make 1 1/2 times the recipe, how many fl. oz. of sherbet does he need?

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Q3. Because a don’t no speak inglés
Get an app called SOCRATIC works like a charm

Find the area of the shaded region

helpp!!

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Answer:

1. 116 m

2. 60 cm

Step-by-step explanation:

1. The total area is 12*10 m, or 120 m. The area of the non-shaded region is 7*2 m, or 14. Subtract 14 from 120 to get 116.

BTW the side 12 looks like it is less than the 10, the question is not lengthed properly, just saying

2. A bit trickier, divide the question into 2 parts, a triangle and rectangle.

The rectangle is 12*4 cm, or 48 cm, the triangle is 12 - 3 - 3 = 6 and 8 - 4 = 4

So we use 6 and 4. The area of a triangle is 1/2b * h, half of the base times the height, the base is 6 cm, and the height is 4 cm, 1/2(6) * 4 = 3*4 = 12 cm

48 + 12 = 60 cm

Mrs. Lee baked 225 brownies for a bake sell. She sold 135 brownies ,and put the rest in plastic containers for her friends. Each container had 6 brownies. Which equation can be use to find b ,the number of containers she used.

A. b=(225+135) x 6

B. b(225+135) -6

C. b(225+135) +6

D. b(225+135) divided by 6

Answers

Answer:

D

Step-by-step explanation:

Once you find how many brownies there are divide by six to see how many containers

Answer:

the answer is D

Step-by-step explanation:

225-135=90/6 containers = 15 containers.

Darren's rectangle measures 3 1/3 units by 3 1/3 units. What is its area?

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Answer:

11 1/9

Step-by-step explanation:

3 1/3 x 3 1/3

= 10/3 x 10/3

= 100/9

= 11 1/9

Drag each tile to the correct box.

Place the samples in order from the sample with the greatest variation to the sample with the least variation. sample of 20 women. sample of 5 women, sample of 45 women and a sample of 60 women

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Answer:

A sample of 5 women, a sample of 20 women, a sample of 45 women, a sample of 60 women

Step-by-step explanation:

I hop this helps

Answer:

5, 20, 45, 60

Step-by-step explanation:

The difference between the two roots of the equation 3r2+10x+c=0 is 4 2/3. Find the solutions for the equation.

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Answer:

4 2/3 positive and negative

Step-by-step explanation:

See photo for information

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Answer:

The 7th term is

[tex] \frac{128}{243} [/tex]

Step-by-step explanation:

See photo for solutions

Hope it helps

The formula for the volume of a cylinder is . What is the approximate volume of two refraction cups? Use 3.14 for pi.

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Answer:

Is there more information? I need like the height and stuff

Answer:

Is there more information? I need like the height and stuff

Step-by-step explanation:

plz help me this is over due but i just cant do it.
It's Translations and Reflections.
(40 points)

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Answer:

Donu but i will whatch videos and tell you

Step-by-step explanation:

Hey! After reviewing the pictures, it’s quite obvious which is the reflection and which is the translation. The reflection is always the one that reflects at the opposite side of the original picture. The first one is the top left one. The translation, aka the second one is the bottom left. The bottom right is a reflection of the top left, and the top right is a reflection of the bottom left

What is the minimum y value of the graph above?

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Answer:y=(x)

Step-by-step explanation:

Y=(x)

There is no graph listed here

Pls help ASAP I beg you guys!!!!!!

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Answer:

a.

maroon = 0.75

gold = 1.25g

budget = 90b

Step-by-step explanation:

a.

marron = m and each m is worth $0.75 so that = 0.75m

gold = g and each g is worth $1.25 so that = 1.25g

budget = b and their b is worth $90 so that = 90b

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