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kondaur [170]
3 years ago
5

Need help please and show work

Mathematics
1 answer:
Aloiza [94]3 years ago
7 0
3z + 6
3z and 6 has greatest common factor, that is 3. Divide 3z and 6 by the greatest common factor (3).
3z ÷ 3 = z
6 ÷ 3 = 2

So, we could work on the expression as following.
3z + 6
= 3 × z + 3 × 2

From the expression above, we should separate 3 from z and 2 by a parenthesis to make distributive property.
3 × z + 3 × 2
= 3(z + 2)

SUMMARY
3z + 6
= 3 × z + 3 × 2
= 3(z + 2)
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Solve for x. Round to the nearest tenth, if necessary. 1.8 & x
Valentin [98]

Answer:

x ≈ 1.4

Step-by-step explanation:

Using the sine ratio in the right triangle

sin50° = \frac{opposite}{hypotenuse} = \frac{RS}{RT} = \frac{x}{1.8} ( multiply both sides by 1.8 )

1.8 × sin50° = x , then

x ≈ 1.4 ( to the nearest tenth )

7 0
3 years ago
Three times the sum of a number and 4 is twice a number minus 8.
amm1812

Answer:

Step-by-step explanation:

3(n+4)=2n-8

3n+12=2n-8

5n= -20

n= -4

8 0
3 years ago
Point A(3,2) is on a circle whose center is C(−2,3). What is the radius of the circle?
goldfiish [28.3K]

Answer:

The radius of the circle is √26.

Step-by-step explanation:

Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.

To find the distance between two points, the following equation should be used:

x^{2} =(x_{A}- x_{C}) ^{2} + (y_{A}- y_{C}) ^{2}

Replacing the numeric values:

r^{2} =(3- (-2)) ^{2} + (2-3) ^{2}\\r^{2} =(5) ^{2} + (-1) ^{2}\\r=\sqrt{26}

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6 0
3 years ago
Need some help please and thanks​
Elina [12.6K]

Answer:

answer is c

Step-by-step explanation:

x-15<4          x-15>-4

     +15                 +15

------------------------------------

x<19                    x>11

                or

            11<x<19

3 0
3 years ago
8pq + 20qr – 16s factorise plz
Dafna1 [17]

Answer:

4(2qp + 5qr - 4s)

Step-by-step explanation:

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we can use 4 as a common factor between these numbers.

8/4 = 2

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so

4(2qp + 5qr - 4s) is the most factorized answer we can get

8 0
3 years ago
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