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svlad2 [7]
3 years ago
10

If x = -1, then (x - 1)(2 - x) = ?

Mathematics
2 answers:
Lynna [10]3 years ago
6 0
Answer=-6
(-1-1)=-2
(2-(-1))=3
-2*3=-6
zubka84 [21]3 years ago
6 0
Answer= -9

Ok so if x equals -1 we just plug in -1 where we see x
The equation after we plug in -1 for x would look like
(-1-2)(2-(-1))

Then we would solve
-1-2 is -3
(-3)(2-(-1))
2-(-1) is 3
Which leaves us with -3(3)
Which equals -9 :)
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A two digits number is 21 times the difference and 350% of the product of its digit. Find the quotient of the digit of number​
Juliette [100K]
The number is 63, so the quotient is 2.

Two digit numbers divisible by 21:
21, 42, 63, 84

21: 2-1 = 1 * 3.5 = 3.5
3.5*2*1 = 7 but 7 does not equal 21

42: 4-2 = 2 * 3.5 = 7
3.5*4*2 = 28 does not equal 42

63: 6-3 = 3*3.5 = 13.5
3.5*6*3 = 63 :)

Check:
21(6-3)=21(3)= 63 :)
3.5(6)(3) = 21(3) = 63 :)

63: 6/3 = 2
3 0
3 years ago
A group of friends is sharing 2 & 1/2 pounds of berries. If 5 friends are sharing the berries, how many pounds of berries do
Thepotemich [5.8K]

Answer:

1/2 of a pound.

Step-by-step explanation:

Step 1: You take 2 and 1/2 and convert it to an improper fraction.

2 1/2 = 5/2

Step 2: Divide 5/2 by 5.

5/2 / 5 = 1/2

Your answer is 1/2

4 0
3 years ago
A is a special relation where one input is related with exactly one output
Solnce55 [7]

Answer:

function

A function is a relation (such that for each input, there is exactly one output) between sets. The formula and the graph are merely descriptions of this relation.

6 0
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Arnie is an american teaching english in Japan,and the currently has 55,000 yen in his bank account.If the excham=nge rate chang
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4 0
4 years ago
A light bulb consumes 15300 watt-hours in 4 days and 6 hours . How many watt-hours does it consume per day?
timurjin [86]

Answer:

3600

Step-by-step explanation:

It consumes 3600 watt hours per day. Steps are included below.

We know that there is 24 hours in a day so we times 24 by the consumes watt hours that is 15300. So 24 times 15300. After that we need to time 4 times 24+6 = the answer that is 3600. That how you get the answer.

Steps:

1: 24*15300/(4*24+6)=3600

Answer: 3600 watt hours per day

<em><u>Hope this helps.</u></em>

3 0
3 years ago
Read 2 more answers
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