#1
What is the distance between the points (4, 7) and (4, –5)?
A.
2 units
B.
12 units
C.
0 units
D.
4 units
#2 What is the distance between the points (–3, 5) and (2, –6)? Round your answer to the nearest tenth.
A.
1.4 units
B.
5.1 units
C.
12.1 units
D.
16.0 units
(Questions: 3,4 and 5 is the pictures.)

Answers

Answer 1

Answer:

Distance between the points (4, 7) and (4, –5) is 12 units and distance between the points (–3, 5) and (2, –6) is 12.01 units.

What is Distance?

The length along a line or line segment between two points on the line or line segment.

Distance=√(x₂-x₁)²+(y₂-y₁)²

The distance between the points (4, 7) and (4, –5)

x₁=4, y₁=7, x₂=4, y₂=-5

Distance=√(x₂-x₁)²+(y₂-y₁)²

Distance=√(4-4)²+(-5-7)²

=√(-12)²

=√144

=12

Hence distance between the points (4, 7) and (4, –5) is 12 units.

the distance between the points (–3, 5) and (2, –6)

x₁=-3, y₁=5, x₂=2, y₂=-6

Distance=√(x₂-x₁)²+(y₂-y₁)²

=√(2-(-3))²+(-6-5)²

=√(5)²+(-11)²

=√25+121

=√146

=12.08

So distance between the points (–3, 5) and (2, –6) is 12.01 units.

Hence distance between the points (4, 7) and (4, –5) is 12 units and distance between the points (–3, 5) and (2, –6) is 12.01 units.

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Answer 2

Answer: #1 = 12 units

#2 = 5.1 I think

#3...

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Karina rows a boat downstream for 66 miles. The return trip upstream took 16 hours longer. If the current flows at 4 mph, how fast does Karina row in still water?

Answers

Answer:

7 mph

Step-by-step explanation:

Let x be the speed in still water hence

Time to move downstream will be $\frac {66}{x+4}$

Time to move upstream will be $\frac {66}{x-4}$

Difference will be

$\frac {66}{x-4}-\frac {66}{x+4}=16$

$66(x+4)-66(x-4)= 16(x^(2)-16)$

$66x+264-66x+264=16x^(2)-256$

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x=7

Are the ratios 3:1 and 16:4 equivalent

Answers

First, simplify the 16:4 ratio.
• 16:4 ÷ 2 = 8:2 ÷ 2 = 4:1

Now, check to see if they're equivalent:
• 3:1 = 4:1 ???
- 3:1 =/= 4:1

So, NO these ratios are not equivalent.

No they are not equivalent 16:4 is like dividing by 4 which is 4:1

Photo above! How do I find the area of this? I'm more concerned about how to find the answer than the actual answer itself. I just need to know how to find the area

Answers

Well, this is how I do it. Multiply 4 and 10 and get the area of the whole thing. Answer is 40. Then, multiply 3 and 5. (I got 5 from subtracting 2 and 3 from 10). This gives me the area of the missing piece. Answer is 15. Lastly, I subracted. 40 - 15. Gave me 35. My final answer I got is 35. I hope my answer is correct! I hope this helped!

(2·4)+(1·5)+(3·4)=25

15 liters increased by 60 percent

Answers

$15liters\ +60\%*15\ liters=\n\n 15liters+0,6*15\ liters=\n\n 15\ liters+9=24liters\n\n 15\ liters\ increases\ by\ 60\%\ is\ 24\ liters.$

Answer:

The answer is 24 liters

Step-by-step explanation:

I got it right during math class

Farmer Jan is a vegetable farmer who divides his field between broccoli crops and spinach crops. Last year, he grew 6 tons of broccoli per acre and 9 tons of spinach per acre, for a total of 93 tons of vegetables. This year, he grew 2 tons of broccoli per acre and 3 tons of spinach per acre, for a total of 31 tons of vegetables.

Answers

what is the question

Jake has a piece of yarn that is feet long Blair has a piece of yarn that is 4 inches long. who has the longer piece of yarn? Explain. 4. WRITE Math Would you measure the length of jump rope in inches or in feet?

Answers

12 inches is equal to 1 foot, and Blair's is only 4 inches long, therefore Jake's is longer. You'd also probably measure it in inches for accuracy