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emmainna [20.7K]
3 years ago
10

Solve for w 7=-4w+7 w=

Mathematics
1 answer:
devlian [24]3 years ago
5 0

Answer:

0

Step-by-step explanation:

If I'm not mistaken, the answer must be 0.

7-7 is 0, that cancels out

0 divided by -4w is zero. That leaves w alone

w=0. I think that's the answer.

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A circle is graphed with its center on the origin.The area of the circle is 49 square units.What are the coordinates of the x-in
neonofarm [45]

Answer:

3.95 and -3.95

Step-by-step explanation:

To graph a circle you can use the formula or (x – h)^2 + (y – k)^2 = r^2. So substituting in the given, we get x^2+y^2=49/pi. The x intercept is when y=0. So x^2=49/pi and so

x = sqrt(49/pi) and rounding to the nearest tenth, we get 3.95 and -3.95 because it isn’t a principal square root.

3 0
3 years ago
Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much
nlexa [21]

Answer:

$10 coins: 21

$20 coins: 24

Step-by-step explanation:

heyy me again

So we can create 2 equations where

x = number of $10 coins

y = number of $20 coins:

x + y = 45

10x + 20y = 690

we can move equation 1 around so that we can get a value of x

x = 45 - y

now we can substitute x into the second equation

10(45 - y) + 20y = 690

450 - 10y + 20y = 690

10y = 240

y = 24

Now plug in y back into the first equation

x = 45 - y

x = 45 - 24

x = 21

8 0
3 years ago
Jaşon said that -4, -1.5, 3, and 7 are integers and whole numbers. Is Jason correct? Explain why or why not.​
SIZIF [17.4K]

Answer:

see below

Step-by-step explanation:

-1.5

Integers have no fractional parts

-1.5 is -1 1/2 which has a fractional part

The rest are whole numbers and integers

7 0
3 years ago
Solve the system:
marysya [2.9K]

Answer:

390

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I don’t understand this
coldgirl [10]

Answer:

just use the calculator

3 0
2 years ago
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