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Shkiper50 [21]
3 years ago
9

True or false: (x−6) is a factor of 4x3−18x2+3x−13.

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer:

The answer is false

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Which of the following ordered pairs represents the solution to the system given below?
castortr0y [4]
X − 4y = 7
5x + 9y = 6

5x − 20y = 35  //1st * 5
5x + 9y = 6

5x +9y - 5x + 20y = 6 - 35  //2nd - 1st
5x + 9y = 6

29y=-29
5x=6-9y

y=-1  //1st : 29
5x=6-9*(-1)

y=-1
x=15:5 //2nd : 5

y=-1
x=3

check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok

answer: (3;-1) represents the solution.

8 0
3 years ago
Read 2 more answers
Linear relationships are important to understand because they are common in the world around you. For example, all rates and rat
emmasim [6.3K]

Two other examples of linear relationships are changes of units and finding the total cost for buying a given item x times.

<h3>Other examples of linear relationships?</h3>

Two examples of linear relationships that are useful are:

Changes of units:

These ones are used to change between units that measure the same thing. For example, between kilometers and meters.

We know that:

1km = 1000m

So if we have a distance in kilometers x, the distance in meters y is given by:

y = 1000*x

This is a linear relationship.

Another example can be for costs, if we know that a single item costs a given quantity, let's say "a", then if we buy x of these items the total cost will be:

y = a*x

This is a linear relationship.

So linear relationships appear a lot in our life, and is really important to learn how to work with them.

If you want to learn more about linear relationships, you can read:

brainly.com/question/4025726

6 0
2 years ago
Chris worked 28 hours last month and earned $9 per hour. He spent $18 of his earnings since then.How much money does he have lef
uranmaximum [27]
The answer would be 234. You will multiply 28 by 9 and minus 18.
6 0
3 years ago
Read 2 more answers
I have been stuck on this forever can you please help
Aneli [31]
6 acts as the base. 15 acts as the height, because it extends from the base to meet vertex opposite the base at a 90° angle.

General formula for triangle area
a = 1/2 × b × h

plug in the numbers
a = 1/2 × 6 × 15
a = 90/2
a = 45

The area of the triangle is 45 units²
8 0
3 years ago
A sphere has a radius of 2.1 cm. what is the volume of sphere in cm3 (use 3.14 for π? round to the nearest whole number.
Ket [755]
2.1 squared is 4.41, 4.41 times 3.14 is 13.84, 13.84 times 4/3 is 18.46.
your answer is 18.46 cm3
5 0
3 years ago
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