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3 years ago

9

Please help first answer will get brainliest!

1 answer:

scZoUnD [109]3 years ago

5 0

Answer: -10

Step-by-step explanation: From the start of the equation, we know it must factor to something like (3m + x)(n+y), because the first term must be 3mn. Now, for the next term to be -6n, y must be -2, and for the third term to be 5n, x must be positive 5. So we end up with (3m+5)(n-2). If we factor this out, we get 3mn-6m+5n-10, meaning the final term is -10.

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Anyone know how to do this

Anton [14]

let

(hypotenuse ) c = 10 in

(perpendicular) a = 8 in

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c^2= a^2+b^2

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2 years ago

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nikdorinn [45]

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What is the name for a model that you cannot touch but gives you a mental image of how something works? a. a physical model b. a

likoan [24]

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8 0

3 years ago

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Use the function s=8r+14 to find the value of s when r=3.

Phantasy [73]

Answer: s= 38

Step-by-step explanation:

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4 0

3 years ago

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In ΔNOP, n = 910 inches, o = 110 inches and p=820 inches. Find the measure of ∠P to the nearest degree.

Sophie [7]

Given:

In ΔNOP, n = 910 inches, o = 110 inches and p=820 inches.

To find:

The measure of ∠P to the nearest degree.

Solution:

According to the law of cosine:

$\cos A=\dfrac{b^2+c^2-a^2}{2bc}$

Using law of cosine in triangle NOP, we get

$\cos P=\dfrac{n^2+o^2-p^2}{2no}$

Putting the given values, we get

$\cos P=\dfrac{(910)^2+(110)^2-(820)^2}{2(910)(110)}$

$\cos P=\dfrac{828100+12100-672400}{200200}$

$\cos P=\dfrac{167800}{200200}$

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Taking cos inverse on both sides, we get

$P=\cos^{-1}(0.83816)$

$P=(33.05367)^\circ$

$P\approx 33^\circ$

Therefore, the measure of ∠P is 33°.

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2 years ago

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