MATHEMATICS MIDDLE SCHOOL

What ratio is equivalent to 4 : 13?A. 8 : 17
B. 16 : 52
C. 12 : 33
D. 20 : 55

Answers

Answer 1
Answer: the answer would be b . i know this because if you multiply 4 and 13 by 4 you would get 16 and 52 , so the ration 16 : 52 is equivalent to the ration 4 : 13 .

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Mr. Grayson owns a wood company that sells trees. Mr. Grayson gets a request from a customer to buy a palm tree of a specific height. Mr. Grayson’s tree nursery is very large and is organized by a coordinate plane map system. He finds a palm tree that he thinks might meet the customer’s specifications. The tree is located at coordinates (35, 28). He calls his assistant to come over to help him determine the height of the tree. He asks his assistant where she’s located. His assistant says she is located at (70, 15). Each unit on the coordinate grid represents 1 ft. How far is Mr. Grayson’s assistant from the tree? Round to the nearest tenth. Show your work. Pls and Thank you <3

Answers

distanc formula
the distance betwen points (x1,y1) and (x2,y2)  is
D=\sqrt{(x2-x1)^(2)+(y2-y1)^(2)}

so
distance betwen him and assistant is
distance between (35,28) and (70,15)

D=\sqrt{(70-35)^(2)+(15-28)^(2)}
D=\sqrt{(35)^(2)+(-13)^(2)}
D=√(1225+169)
D=√(1394)
D=37.3363

about 37.3 feet away

Jeff had reached the highest level in his new computer game. The computer reported his score as 1.35x10^5 points. How should Jeff write his score in standard form?

Answers

Answer:

135,000 points

Step-by-step explanation:

An easier way to solve these type of questions is to understand that the 10^(5) is basically asking you to move the decimal point 5 spaces to the right, adding a zero in every free spot. So 1.35x10^5 would be

1.35x10^5 = 135000

In other words Jeff's high score written in standard form would be 135,000

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
you have to use pemdas or as other people call it ... 

(p)lease (e)xcuse (m)y (d)ear (a)unt (sa)lly
parenthesis exponents multiply divide add subtract
you start with the exponent and you take 10 to the 5th power
that will equal 100000
so now you have 1.35x100000=135000

PLEASE HELP WITH MATH. BEST GETS BRAINLIEST.Celina is buying fabric scraps to make koozies for her glasses. Each glass is cylindrical with a diameter of 3 inches and a height of 4 inches. The koozies will cover only the sides of the glasses. What is the amount of fabric she will use? What does this amount represent? Use 3.14 for pi. Show your work.

Answers

What you're looking for here is the surface area of the sides of the glasses (what the koozies will cover). This is also what the amount represents.

The surface area of the sides is equal to the perimeter of the base times the height of the cylinder. It makes sense logically because the sides are basically the perimeter of the base, raised all the way up along the cylinder.

SA = perimeter x height
SA = pi x diameter x height
SA = 3.14 x 3in x 4in
SA = 37.68 in^2

She will use 37.68 square inches of fabric.

Events A and B are mutually exclusive, with P(A) = 0.65 and P(B) = 0.14. What is P(A or B)?







A.
0.091





B.
0.215





C.
0.51





D.
0.79

Answers

Answer: 0.79, D

Work:
The value of the probability of (A or B) when A and B are mutually exclusive is equal to P(A) + P(B). There is no need to subtract the P(A and B) because the events are mutually exclusive which means that they never overlap and P(A and B) is therefore equal to 0. The answer is then 0.65 + 0.14 which equals 0.79, which is the answer.

Jane needs to miss fewer than 1/6 of the words on her spelling list.  If there are 18 words, how many can she miss?  Explain.

Answers

she would have to miss 1 or 2 because 1/6 of 18 is 3 so less than 3 is 2 or 1

hope that helps!

because she needs to miss less than 1/6
therefore, she has to miss less than 1/6*18
thus, she has to miss less than 3

you want to build the rectangular dog pen with 20 yards of fencing against your house which is 20 yards wide. which dimensions will give you the most space for your dog?

Answers

ok so your house is 20 yards wide, that akes care of one side
if you have only 20 yards of fencing then hmm
the way to max the space is to make all side equal

20 is for 3 sides
20/3=6.6666666 per side
assuming you don't need to fence the house side

the amount of fencing is 6 and 2/3 by 6 and 2/3 by 6 and 2/3 yards
the correct answer is 6 2/3 hope this helps 
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