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navik [9.2K]
3 years ago
12

Help me plz for branliest Question is picture plz show working out

Mathematics
1 answer:
Agata [3.3K]3 years ago
5 0
You must use quadratic formula for each. 

The term in front of the x^{2} is the "a" value in the quadratic formula. The term in front of the x is the "b" value. And the constant term (no x's) is the "c" value. Now you must simply substitute these values into the quadratic formula for each question.

1.) x = -0.268 and x = -3.732

2.) x = -0.838 and x = -7.16

3.) x = 3.56 and x = -0.561

4.) x = 6.70 and x = 0.298

Hope this helps!
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5 0
2 years ago
If 2a-b:2a+b=1:2find the value of a:b​
weqwewe [10]

Answer & Step-by-step explanation:

2a - b : 2a + b = 1 : 2

2a - b = 1

-                         Elimination

2a + b = 2

-b - (b) = -1

-2b = -1

b = 0.5

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

2a + b = 2           Substitution

2a + 0.5 = 2

2a = 1.5

a = 0.75

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a:b

0.75 : 0.5

or

3/4 : 1/2

Hope this helps!!!

 

3 0
3 years ago
What Is The Prime Factorization of 212.
DanielleElmas [232]
212
/ \
2 106
/ \
2 53

2800
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2 1400
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2 700
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2 350
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5 7
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This might help if you need it again
6 0
3 years ago
When subtracting decimals with the same sign you ______________.
Rus_ich [418]

Hey there!

Answer:\boxed{\text{Line up the decimal}}

Explanation:

When always adding or subtracting, you <em>always</em> have to <u>line up the decimal</u>.

When subtracting decimals with the same sign you <u>Line up the decimal</u>.

Hope this helps!

3 0
3 years ago
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Kamila [148]

Answer:

$22

Step-by-step explanation:

20*110/100

=$22 is the amount

8 0
2 years ago
Read 2 more answers
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