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Effectus [21]
3 years ago
7

An equation is a statement that is true for every value in the domain. O True O False

Mathematics
2 answers:
MrRa [10]3 years ago
3 0
The answer is true!

explaination: hope this helped
damaskus [11]3 years ago
3 0

Answer:

the answer is FALSE the other answer is wrong

Step-by-step explanation:

i took a test

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I only need help in #36
Andrei [34K]

The circle is split into 5 parts meaning each is worth 20%, therefore, all five parts of one = 100% and 2 parts of the second one = 40%. That would equal 140%.

8 0
3 years ago
If f(x)=-3x-1, find f(-5)<br>a)16<br>b)15<br>c)-16<br>d)14​
Anuta_ua [19.1K]

Answer:

D) 14

Step-by-step explanation:

f(x) = -3x - 1

f(-5) = -3(-5) - 1

f(-5) = 15 - 1

f(-5) = 14

D) 14

4 0
3 years ago
If 160 is divided by x, then the remainder is 4. What is the remainder when 315 is divided by x?
frutty [35]
Let us rewrite this equation as:
<em>160/x = some number + 4/x
</em>we can assume that some number of x's can fit into 160, but x is greater than 4 so we have a remainder.
We can figure out by using the remainder that x is completely divisible into (160-4) or 156. Knowing this we can assume that x is some factor of 156 that is greater than 4. 
Let us list the factors of 156
1,2,3,4,6,12,13,26,39,52,78,156
Now let us refer back to the restrictions we put on x.
<em>x must be > 4 as anything less than 4 would divide at least 1 more time into it. So now we are left with a bunch of other factors. And the cool thing is that all of the factors excluding anything that is = or < 4 all work for getting a remainder of 4. Thus we can use the largest factor and set it equal to x.
</em>So x = 156
then if we divide 315 by x or <em>315/x = 315/156 = 2 and a remainder of 3
so the answer would be 3.</em>
4 0
3 years ago
A swimming pool has to be drained for maintenance. The pool is shaped like a cylinder with a diameter of 5 m and a depth of 1.4
Korolek [52]

Answer:

8 hours

Step-by-step explanation:

basic equation

Q (flow rate) = V (volume)/ t (time)

so to find the time we just rearrange the equation and become

t = V/Q

V of cylinder

V = πr²T

and r (radius) = ½ diameter

V = 3.14 x 5² x 1.4

V = 109.9 m³

if the Q is 13 m³/hour then

t = 109.9/13 = 8.453 hours

round to nearest hour = 8 hours

6 0
3 years ago
About how many pounds of coffee will you need to make 600 medium cups of coffee?
Veronika [31]

Answer:

A. 10

Step-by-step explanation:

I found a website that explains that you need 8.3 grams of coffee to make one 5-fl oz cup of coffee.

To make 600 cups, you need 600 * 8.3 g = 4980 g

Now we convert 4980 g to lb.

1 lb = 454 g

4980 g * (1 lb)/(454 g) = 11 lb

The closest answer is A. 10

Answer: A. 10

6 0
3 years ago
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