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natita [175]
2 years ago
9

(Please Help me) Read all of it?

Mathematics
1 answer:
Alinara [238K]2 years ago
4 0

Answer:

42 easy :)

Step-by-step explanation:

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Hello, I gotta turn it turn in this question today, help!!!!!!
Sladkaya [172]

Answer:

2 or -2

Step-by-step explanation:

If x² - 8x = -12

Step 1

We find x by solving

x² - 8x = -12

We equate to zero

x² - 8x + 12 = 0

We factorise

x² - 6x - 2x + 12 = 0

x(x - 6) -2(x - 6) = 0

(x - 6) (x - 2) = 0

x - 6 = 0, x = 6

x - 2 = 0, x = 2

x = 6 or 2

Step 2

What is x - 4?

When x = 6

= 6 - 4 = 2

When x = 2

= 2 - 4 = -2

Therefore, x - 4 = 2 or -2

3 0
3 years ago
A rectangle has a base of 5 cm and a height of (x + 2)cm. Its area is 20 cm ^ 2. What is the value of x?
Len [333]
So area is base x height:
5(x+2)=20
5x+10=20
5x=10
x=2
its A
3 0
3 years ago
Is 1-2 of 0.04 what is the answer plz do tell
Inga [223]

Answer:0.02

Step-by-step explanation:

0.04/2

5 0
3 years ago
A student made an error when solving this problem. A number divided by 4 is 3 more than –11. What is the number?
fiasKO [112]
C is the right anskwe
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Amir wants to scale up a photo to create a poster for his room. The original picture is 6 inches in width and 4 inches in height
Amiraneli [1.4K]
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