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Anton [14]
3 years ago
8

Perform the indicated operation. (2x + y)(3x^2 + y)

Mathematics
1 answer:
alekssr [168]3 years ago
4 0

Answer:

(2x+y)(3x^2+y)=6x^3+3x^2y+2xy+y^2)

Step-by-step explanation:

The given expression is (2x+y)(3x^2+y).

We expand the parenthesis using the distributive property to obtain;

(2x+y)(3x^2+y)=2x(3x^2+y)+y(3x^2+y)

We expand further to get;

(2x+y)(3x^2+y)=6x^3+2xy+3x^2y+y^2)

This gives us;

(2x+y)(3x^2+y)=6x^3+3x^2y+2xy+y^2)

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It costs a clothing company $463.45 to make 169 T-shirts.
Artemon [7]

Answer:

The unit price for 1 T-shirt is about $2.74.

Step-by-step explanation:

Set up an equation:

Variable x = unit price for 1 T-shirt

169x = 463.45

Divide both sides by 169:

x = 2.742307...

Round to the nearest cent:

x = 2.74

3 0
3 years ago
in a certain class,10 of 24 students play sports. what is the ratio of students who play sports to those who do not?
nexus9112 [7]

Answer:

Step-by-step explanation:

Student who don't play sports =  24 - 10 = 14

the ratio of students who play sports to those who do not = 10 : 14 = 5:7

7 0
3 years ago
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Please help I have to turn this in by the end of the night
dedylja [7]

Answer:

3 subtracted from the product of 7 and a number b

3 subtracted= -3

product of 7 and a number b= 7b

put those together:

7b-3

hope this helps, also what grade is this

3 0
3 years ago
Can someone please tell me the answer on this.
marishachu [46]

Answer: x = 31

Step-By-Step:

<u>To Find x:</u>

<u />\left(2x+20\right)+\left(x+10\right)+\left(2x-5\right)=180 (Angle Sum Property Of Triangles)

(Remove the brackets)

<u />2x+20+x+10+2x-5=18<u />

(Group Accordingly)

<u />2x+x+2x+20+10-5=180<u />

= 5x+20+10-5=180

= 5x\:+\:25 =180

= 5x= 180 - 25

= 5x = 155

= x=\frac{155}{5}

= 31

<u>Therefore</u> x = 31

So,

Angle A = x + 10 = 31 + 10 = 41

Angle B = 2*x + 20 = 2*31 + 20 = 82

Angle C = 2*x - 5 = 62 - 5 = 57

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3 years ago
Hmmmmmmmmmmmmmmmmmmmm
Marysya12 [62]
Yes the answer is hmmmmm
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