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scoundrel [369]
3 years ago
5

Help please!! Simplify the following expression

Mathematics
1 answer:
Andrej [43]3 years ago
7 0

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>D. 8x⁴ + x³ - 4x² + 1</em>

▹ Step-by-Step Explanation

Remove the opposites:

x⁴ + 3x³ - 2x³ - 5x² + x² + 1 + 7x²

Collect like terms:

8x⁴ + 3x³ - 2x³ - 5x² + x² + 1

8x⁴ + x³ - 5x² + x² + 1

8x⁴ + x³ - 4x² + 1

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

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If you borrow $900 for 6 years at
attashe74 [19]

Answer:

$1278

Step-by-step explanation:

First you would need to find out how much the annual interest rate is so you would find out what 7% of $900 is which is 63 meaning that there is an annual fee of $63 and since it was for 6 years you would multiply $63 times 6 to get 378 and then to find the total amount you would pay you have to add the interest to what you borrowed so you would do $900 + $378

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Given: ABCD is a trapezoid, AB = CD, BK ⊥ AD, AK = 10, KD = 20 Find: BC AD
alexdok [17]

Answer:

<u> BC = 10 and AD = 30</u>

Step-by-step explanation:

In figure-1 , AB = CD ,BK ⊥ AD,  AK = 10,  KD = 20.

Since, line AD is sum of AK and  KD, then

AD = AK + KD

AD = 10 + 20

AD = 30

Since, BC ║AD and BK ⊥ AD then similarly we construct CL ⊥ AD

so, BC = KL and AK = LD

KL = AD - LD

KL = 20 - 10

KL = 10

Since, BC = KL then BC = 10

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3 years ago
Last year the math club had nine sixth grade students and 4 4th grade students what is the radio of 4th grade students to the to
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3 0
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Pls help asapp picture attached
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Answer:

50

Step-by-step explanation:

Angle 1 is 110.

Angle 3 is 2x plus 10.

Angle 1 and 3 are vertically opposite angles.

And vertically opposite angles r equal.

Which means, angle 1=angle 3,and angle 2=angke 4.

Here we only Need angle 2 and 3.

Angke 2= angle 3.

Which is 2x plus 10=110.

Therefore 2x=110-10=100

Therefore x = 100÷2=50

There u have it ma'am.

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