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timurjin [86]
3 years ago
7

Select the correct answer from the drop-down menu.

Mathematics
1 answer:
saul85 [17]3 years ago
3 0

For this case we have the following factorized expression:

(2y-9) (2y-9)

Applying distributive property we have:

(2y) (2y) - (2y) (9) - (9) (2y) + (9) (9) =\\4y ^ 2-18y-18y + 81 =

We add similar terms taking into account that: Equal signs are added and the same sign is placed.

4y ^ 2-36y + 81

ANswer:

4y ^ 2-36y + 81

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Can someone please solve this problem for me
notsponge [240]

Answer:

D. 28.54

Step-by-step explanation:

To find the area of the shaded region, find the area of the circle and divide it in 4. This will the area of the portion with the triangle.

Now, find the area of the triangle and subtract the two. The resulting value will be the area of the shaded region.

Circle:

A = \pi r^2\\A = \pi 10^2\\A = 100 \pi\\A = 314

Divide by 4 for the area of the section with the triangle.

314/4 = 78.5

Triangle:

A = \frac{1}{2}bh\\A = 0.5 (10 )(10)\\A=0.5(100)\\A=50

Subtract the two, 78.5 - 50 = 28.5.

7 0
3 years ago
SOMEONE HELPPPPPPPPP PLEEEASSEEEEEE IMMMM STUCCCCKKKKK PLLEASSE ILL GIVE YOU 24 POINTs: On Monday, Jan made withdrawals of $25,
kolezko [41]
Just write down the negative values of each withdrawal and add up those values for the first two.
1. -25 + -45 + -75 = -145
2.-35 + -55 + -65 = -155
As for the third question, the brother took out $10 more than Julie, so he withdrew $165. A possible equation with possible values could be:
3. -15 + -65 + -85 = -165
Keep in mind that there are multiple ways to answer the third question and that's only one of them. Hope this helped!
8 0
3 years ago
Read 2 more answers
Factor completely 2x^3 + 14x^2 + 6x + 42.
masha68 [24]
Hello,

2x^3+14x^2+6x+42=2x^2(x+7)+6(x+7)
=(x+7)(2x²+6)
=2(x+7)(x²+3)  in IR.

or In C  2(x+7)(x-i√3)(x+i√3)
4 0
3 years ago
If y varies directly as​ x, and y=8 when x=3​, find y when x=15.
Crank

Answer:

y=40

Step-by-step explanation:

The formula for Direct Variation is y=kx or k=y/x. In this case I would use k=y/x. If you're y is 8 and x is 3, this means that K=8/3. Using this, we know that X=15. We have to find a Y value so that the fraction with an x of 15 simplified is 8/3. To do this you would write 8/3 and y/15. Now cross multiply to get 3y=120. Divide by 3 to get y=40. View my attachment for the work!

8 0
3 years ago
Which of the following triangles are impossible to draw? Choose all that apply.
ioda
I would say a triangle with two right angles because a triangle's angles add to 180 degrees. If a triangle has two right angles, it means that two angles will be 90 degrees, which add to 180 degrees. A triangle must have three angles and sides, and it is not possible for the last angle to be 0 degrees.

Hope this helps
7 0
3 years ago
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