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3 years ago

Someone please please help me out on this please

Mathematics

1 answer:

svp [43]3 years ago

4 0

Answer:

Step-by-step explanation:

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9. Write the missing addend. 46 + = 52

Alex73 [517]

Answer:

Step-by-step explanation:

To find the missing number, subtract: 52 - 46 = 6

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3 years ago

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Help ASAP.<br><br><br> 1. What is the equation of the midline of the sinusoidal function

Scilla [17]

Answer:

y = 2

Step-by-step explanation:

The maximum of this function is 5 and the min. is -1. Thus, the range is [-1, 5]. The midpoint of this range is the y-value of the midline:

-1 + 5

--------- = 2

Thus, the equation of the midline is y = 2.

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3 years ago

What is 0 + y, when y = -12

yaroslaw [1]

Answer:

-12

Step-by-step explanation:

Substituting, we get 0 - 12, Which is simply -12

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3 years ago

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5. Express the product as a polynomial in simplest form:<br> (x + 5)(x - 5)(2x + 3)

Tasya [4]

Answer:

2x^3+3x^2-50x-75

Step-by-step explanation:

(x+5)(x-5)=x^2-25

(x^2-25)(2x+3)=2x^3+3x^2-50x-75

Can I have brainliest!

5 0

3 years ago

Geometry Question attached below

Soloha48 [4]

I'm sure there's an easier way to do this, but this method does work:

First, AB = CD = CG + GF + FD, so FG = 2.

By the Pythagorean theorem, in triangle AFD we get

$1^2+3^2=A F^2\implies A F=\sqrt{10}$

and in triangle BCG,

$2^2+3^2=BG^2\implies BG=\sqrt{13}$

Angles AFD and EFG form a vertical pair, so they are congruent and have measure

$m\angle EFG=\tan^{-1}3$

Similarly, angles BGC and FGE are congruent and have measure

$m\angle FGE=\tan^{-1}\dfrac32$

Then the remaining angle in triangle EFG has measure

$m\angle FEG=\pi-\tan^{-1}3-\tan^{-1}\dfrac32$

We can solve for the lengths of FE and GE exactly by applying the law of sines:

$\dfrac{\sin\left(\pi-\tan^{-1}3-\tan^{-1}\frac 32\right)}2=\dfrac{\sin\left(\tan^{-1}3\right)}{GE}=\dfrac{\sin\left(\tan^{-1}\frac32\right)}{FE}$

$\implies GE=\dfrac{2\sqrt{13}}3,FE=\dfrac{2\sqrt{10}}3$

Let $s$ be the semiperimeter of triangle ABE, so that

$s=\dfrac{AB+BE+EA}2$

Then according to Heron's formula, the area of triangle ABE is

$\sqrt{s(s-AB)(s-BE)(s-EA)}=\dfrac{25}2$

5 0

4 years ago