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2 years ago

What expression could be used to determine the product of -4 and 3 1/4

Mathematics

2 answers:

nasty-shy [4]2 years ago

4 0

-4*3 1/4 or use it backwards

nikdorinn [45]2 years ago

3 0

-4*3 1/4 would be and expression you can use

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

To find the product of the expression:

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

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

Decompose and use the distributive property to find the product of 5 × 7.3.

swat32

Answer:

36.5

Step-by-step explanation:

5(1+6.3)

6 0

3 years ago

Show me step by step : 0.18x1.5

rosijanka [135]

Answer:

0.27

Step-by-step explanation:

0.1 8

x 0.50

-----------

000

900

x 1800

-----------

2700 = 0.27

3 0

3 years ago

5. Kamala worked for 7 1/2 h. She spent 2/3 of the time on her computer. How long was she on her computer?

Lina20 [59]

Answer:

5 hrs

Step-by-step explanation:

7 1/2 hours equates to 450 minutes total

2/3 of 450 = 300 total minutes

turning the minutes back into hours, 300 / 60 = 5

4 0

2 years ago

Read 2 more answers

Multiplying Integers 2.2 -6.(-6) • (-6)

Kamila [148]

Answer:

−475.2

hope this helps B) hope we can be friends UvU

Step-by-step explanation:

3 0

3 years ago

What expression could be used to determine the product of -4 and 3 1/4￼

What expression could be used to determine the product of -4 and 3 1/4