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I am Lyosha [343]
3 years ago
8

okay so like i was wondering if ya'll could help with some homework? i have to be somewhere in a little bit and i wanna get this

done before i have to go so i don't have to worry about it later.

Mathematics
1 answer:
VladimirAG [237]3 years ago
3 0

Answer:

Im pretty sure the aswer is A

Step-by-step explanation:

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Rachel mows 5 lawns in 8 hours. At this rate how many lawns can she mow in 40 hour?
posledela

We can think of this as an equality

5 Lawns = 8 Hours

If she needs 40 hours, you can multiply 8 hours by 5 to get 40, but now it's not balanced. So, you need to multiply 5 to the other side too so:

5 x (5) = 8 x (5)

Therefore she mows 25 Lawns in 40 Hours

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2 years ago
Area of a semicircle is 308cm. Find the perimeter
fgiga [73]

Answer:

72 cm

Step-by-step explanation:

Find the radius using the given information

308=1/2(πr^2)

r^2=616/π

r=14

The perimeter is πr + 2r so plug in 14

π(14) + 2(14)

43.96+28=71.96

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3 years ago
Last Sunday a certain store sold copies of Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the store so
Artemon [7]
Answer is b 150p(250-p)150p(250-p
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2 years ago
If x=3 then solve the equation: y=10x×10x-7×-12
NNADVOKAT [17]
The answer is y = 545. 
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3 years ago
Read 2 more answers
I need help please answer these two questions for me! Will give points.​
jarptica [38.1K]

Answer:

7.) 7

10.)  0

Step-by-step explanation:

When it means "evaluate the function", it's in essence asking us to see what the function spits out when we feed it a certain input. Our inputs are our x values, which spit out a y value.

Evaluating the function when x = 1:

Let's look at where the function has an x value of 1. We see it near the bottom of the table and see the y value associated with the input is 7. So when the function is fed 1 as an input, it spits out 7.

Evaluating the function when f(x) = - 2:

This one is a weird because of the new notation. Just think of it as some value of f, which we don't know (so we represent it as an x-variable) must equal -2. So let's look at our table to find out where our output is -2. We find that when f(x) = -2 the input is 0. So the input which gives -2 is 0.

7 0
2 years ago
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