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omeli [17]
4 years ago
13

Why is this wrong? What is the rigth answer?

Mathematics
1 answer:
pantera1 [17]4 years ago
3 0
For every 7 votes for candidate a, there are 4 votes for candidate c
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Please help me with these two questions. And can you tell me how to do this! Thanks you
Vaselesa [24]
(X-10)(X-10) You need to first multiply out the brackets. So, first times X by X, which makes x^2 . Then do -10 x -10 which makes 100. You then need to multiply the X within the first bracket with the minus 10 in the second bracket which makes -10x. Do the same but with the -10 from the first bracket and the X from the second which again makes -10x. So altogether you have x^2-10x-10x+100. This can be simplified down to x^2-20x+100. You then do the same thing for the second question :)
5 0
3 years ago
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Which of the following equations is linear?
scoundrel [369]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Please answer quickly
olya-2409 [2.1K]

Answer:

YZ = 18

Step-by-step explanation:

XY = YZ  because the line indicates they are the same length

XY = 18 so YZ = 18

3 0
3 years ago
It costs a homeowner $4.00 to rent a set of hand tools, plus an additional
nexus9112 [7]

Answer:

The correct graph answer is A.

Step-by-step explanation:

Let

c ----> the total cost to rent a set of hand tools

h ----> the number of hours for the rental

we know that

The linear equation that represent the problem is equal to

---> this is the equation of the line into slope intercept form

where

the slope m is equal to

m=$2 per hour

b=$2 ---> the y-intercept (the value of c when the value of h is equal to zero)

therefore

The correct graph is A.

B. C. and D. are incorrect

6 0
3 years ago
Read 2 more answers
Rewrite 2/20 : 1/40 as a unit rate
Valentin [98]

Answer:

\frac{4}{1}

Step-by-step explanation:

<u>Given:</u>

2/20 : 1/40

A). First re-write the ratio as follows;

(i) Change the ratio sign to division (÷). i.e

2/20 ÷ 1/40

(ii) Solve the expression by changing the division to multiplication(×). This also means you will need to swap the numerator and the denominator of the second term. i.e (1 / 40) becomes (40 / 1)

(2/20) × (40 / 1) = \frac{2}{20} × \frac{40}{1} = \frac{4}{1}

B). Now convert the result from above to unit rate. A unit rate is a rate in which the denominator has a value of 1.

So to convert   \frac{4}{1}  to unit rate, we keep simplifying until the denominator becomes 1.

And since the denominator is already 1, there is no need for further simplification.

Therefore, 2/20 : 1/40 to unit rate is  \frac{4}{1}

5 0
3 years ago
Read 2 more answers
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