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3 years ago

1500+1500 please answer

Mathematics

2 answers:

ehidna [41]3 years ago

7 0

3000 is the freaking right answer

Anit [1.1K]3 years ago

3 0

Answer:

Step-by-step explanation:

3000

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Helpppppppppppppppppp

irina [24]

Option D:

$\left(y^{2}+3 y+7\right)\left(8 y^{2}+y+1\right)=8 y^{4}+25 y^{3}+60 y^{2}+10y+7$

Solution:

Given expression is $\left(y^{2}+3 y+7\right)\left(8 y^{2}+y+1\right)$ .

<u>To find the product of the expression:</u>

$\left(y^{2}+3 y+7\right)\left(8 y^{2}+y+1\right)$

Multiply each term of the first term with each term of the 2nd term.

$=y^{2}\left(8 y^{2}+y+1\right) +3 y\left(8 y^{2}+y+1\right) +7\left(8 y^{2}+y+1\right)$

Using the exponent rule: $a^m \cdot a^n = a^{m+n}$

$=\left(8 y^{4}+y^3+y^2\right) +\left(24 y^{3}+3y^2+3y\right) +\left(56 y^{2}+7y+7\right)$

$=8 y^{4}+y^3+y^2+24 y^{3}+3y^2+3y+56 y^{2}+7y+7$

Arrange the terms with same power.

$=8 y^{4}+y^3+24 y^{3}+y^2+3y^2+56 y^{2}+7y+3y+7$

$=8 y^{4}+25 y^{3}+60 y^{2}+10y+7$

Hence option D is the correct answer.

$\left(y^{2}+3 y+7\right)\left(8 y^{2}+y+1\right)=8 y^{4}+25 y^{3}+60 y^{2}+10y+7$

6 0

3 years ago

When the radius of a circle is multiplied by a factor of 2 22, by what factor will the area of the circle change?

MAXImum [283]

A = pi (r)^2
so with 222r

circle changes by a factor of 222^2

6 0

3 years ago

"The male reproductive structure of a plant produces a sticky substance called pollen. Pollination occurs when a butterfly moves

Reil [10]

Short Answer: B

Long Answer:

The stamen is the male fertilizing organ of a flower. The stigma is the part of pistil that receives the pollen.

3 0

2 years ago

A mptprbpat travels downstream on a river for five hours. The speed of the current is 2km/h. The river flows into a still lake a

stiv31 [10]

Answer:

10 km/hr

Step-by-step explanation:

5 hrs = 40 more with 2 km/hr current

2 hrs= less 40 no current

40-2x5=30

30 without current for three hours

30/3=10 km/hr no current

***

CHECK

10x2=20

10x5=50+2x5=60

***

Hope this helps, and please mark me brainliest! thanks! >//-//<

5 0

2 years ago

Whoever gets the specific and correct answer will get Brainlist.<br> Goooood luckkk <3

Elena-2011 [213]

Answer:

$6 per hour

Step-by-step explanation:

30 for 5 hours

$6 per hour

7 0

3 years ago