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3 years ago

2(x + 4)2 = 20 solve by square roots

Mathematics

1 answer:

DanielleElmas [232]3 years ago

5 0

Answer:

x = − 4 ± √ 10,

Step-by-step explanation:

2(x + 4)² = 20

=> 2(x + 4) (x + 4) = 20

=> 2x + 8 (x + 4) = 20

=> 2x² + 8x + 8x + 32 = 20

=> 2x² + 16x + 32 = 20

=> 2x² + 16x + 12 = 0

=> Now solve using the quadratic formula:

x = − 4 ± √ 10,

Radical form: − 4 ± √ 10,

Decimal form: -0.84, -7.16

Hope this helps!

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What is the greatest common factor of 4k, 18k4, and 12?

levacccp [35]

Factor each
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18k⁴=2*3*3*k*k*k*k
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GCF=2

the greatest common factor is 2

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3 years ago

Read 2 more answers

When a customer wants pie for dessert, you cut whole pies into 7 equal slices. At the end of your shift, 3737 of a cherry pie, 2

matrenka [14]

the answer is 13/7 and here is the correct question

the answer is 13/7 and here is the correct questionwhen a customer wants pie for dessert you cut a whole pies into 7 equal slices...at the end of your shift 3/7 of. a cherry pie.2/7. of an apple pie.3/7 of a peach pie.and 5/7 of a blueberry pie remain...How much pie remains as a fraction of. a whole pie...

Answer:

13/7

Step-by-step explanation:

From the question, we have

3/7 of cherry pie

2/7 of apple pie

3/7 of peach pie

5/7 of blueberry pie

Now we have to add up all of these in order to get the total amount of pie

3/7 + 2/7 +3/7 +5/7

= (3+2+3+5)/7

=13/7

If expressed as a mixed fraction

= 1 6/7

In conclusion, 13/7 pie remains as a fraction of a whole.

4 0

3 years ago

A conditional statement and it's_______ must always have the same truth value.

Romashka [77]

Answer: C) Contrapositive

The original conditional is in the form "If P, then Q"
The contrapositive is in the form "If not Q, then not P"
You flip the order of P and Q, and you also negate each piece. The original conditional and contrapositive can be proven to have the same truth values through the use of a truth table.

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3 years ago

In which quadrant the values of x and y both negative.

HACTEHA [7]

Answer:

The Answer should be Quadrant III

Step-by-step explanation:

Hope this helped!

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2 years ago

Chan receives a bonus from his job. He pays 30% taxes, pays 30% charity and 25% debt. Has $600 remaining from his bonus. What wa

Verdich [7]

Answer:

b = $4000

Step-by-step explanation:

Let b represent the bonus amount.

Then the bonus, b, less the three deductions, is represented by

b - 0.30b - 0.30b - 025b, and this comes to $600. Find the value of b.

b - 0.85b = $600, or

0.15b = $600

Then b = $4000

8 0

3 years ago