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3 years ago

Please help. Polynomial question

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Answer:

Therefore the Difference is

$-2x^{2}-7x+11$

Step-by-step explanation:

Vertical Format to Subtract

Given

4x² - 5x + 7

- (6x² + 2x - 4)

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

- - + ....... Sign will change for Subtraction

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

∴ -2x² - 7x + 11 ....... As Required

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

Therefore the Difference is

$-2x^{2}-7x+11$

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Greeley [361]

Answer:

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3 years ago

Read 2 more answers

Describe how you can use compatible numbers to estimate 17x27

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Answer:

600

Step-by-step explanation:

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I hope that helps you.

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3 years ago

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Answer:

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The total charge on 6 particles is -48units. All the particles have the same charge. What is the charge on each particle?

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3 years ago

Given: ABCD trapezoid, BK ⊥ AD , AB=DC AB=8, AK=4 Find: m∠A, m∠B

Elis [28]

Answer:

$m\angle B=m\angle C=120^{\circ}$

$m\angle A=m\angle D=60^{\circ}$

Step-by-step explanation:

Trapezoid ABCD is isosceles trapezoid, because AB = CD (given). In isosceles trapezoid, angles adjacent to the bases are congruent, then

$\angle A\cong \angle D;$
$\angle B\cong \angle C.$

Since BK ⊥ AD, the triangle ABK is right triangle. In this triangle, AB = 8, AK = 4. Note that the hypotenuse AB is twice the leg AK:

$AB=2AK.$

If in the right triangle the hypotenuse is twice the leg, then the angle opposite to this leg is 30°, so,

$m\angle ABK=30^{\circ}$

Since BK ⊥ AD, then BK ⊥ BC and

$m\angle KBC=90^{\circ}$

Thus,

$m\angle B=30^{\circ}+90^{\circ}=120^{\circ}\\ \\m\angle B=m\angle C=120^{\circ}$

Now,

$m\angle A=m\angle D=180^{\circ}-120^{\circ}=60^{\circ}$

7 0

3 years ago