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3 years ago

15

Can someone please help me with the first question?

2 answers:

Paraphin [41]3 years ago

6 0

Answer is A. 18
Because n + 18 =2n

krek1111 [17]3 years ago

3 0

#2 is 60°

All three angles in a triangle will always add up to 180°. You know one of them is 49°. To find the angle U, you can see that it falls on a flat line, which is going to equal 180°, so to find that angle you would subtract 109 from 180, giving you 71°. If two of the angles are stated, all you need is to subtract both from 180 to find what your last angle is.
So 180°-71°-49° = 60°

#4 I think is 75, but I don't feel like explaining it.

Hope this helps :))

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The track team needs new uniforms. The students plan to sell plush toy tigers (the school mascot) for $5 each. The students find

sasho [114]

Answer:

Company C

Step-by-step explanation:

Company A sells 12 tigers for $33.24.

Cost per tiger = $33.34 / 12

= $2.78

Company B sells 16 tigers for $44.80. Company

Cost per tiger = $44.80 / 16

= $2.8

C charges $41.10 for 15 tigers.

Cost per tiger = $41.10 / 15

= $2.74

The company that has the best buy is company C that charges $2.74 per tiger

8 0

3 years ago

Simplify (-4x^2-3y-8)+(5y-2x^2+1)

ddd [48]

Add the like terms.

The like terms in this case are:

-4x^2 and -2x^2

This makes -6x^2

-3y and 5y

This makes 2y

-8 and 1

This makes -7

Your answer is (-6x^2+2y-7)

8 0

3 years ago

Help me find the answer for number problem 2 please

denis23 [38]

S + B = 33

S - B = 2

___________

2S = 35

S = 17,5

B = 15,5

3 0

3 years ago

-9______ -7<br><br> A.><br> B.<<br> C.=

Alla [95]

Answer:

B

Step-by-step explanation:

B, -9 < -7 it is correct ansewer

5 0

2 years ago

Use integration by parts to find the integrals in Exercise.<br> ∫(4x-12)e-8x dx.

stepladder [879]

Answer:

$e(2x^{2} -12x)-4x^{2}+C$

Step-by-step explanation:

We have been given an indefinite integral as $\int \left(4x-12\right)e-8x\:dx$ . We are asked to find the given integral.

Let us solve our given problem.

$\int \left(4x-12\right)e\:dx-\int 8x\:dx$

Take out constant:

$e\int \left(4x-12\right)\:dx-8\int x\:dx$

$e(\int 4x\:dx -\int 12\right\:dx)-8\int x\:dx$

$e(\frac{4x^{1+1}}{2} -12x)-8*\frac{x^{1+1}}{1+1}+C$

$e(\frac{4x^{2}}{2} -12x)-8*\frac{x^{2}}{2}+C$

$e(2x^{2} -12x)-4x^{2}+C$

Therefore, our required integral would be $e(2x^{2} -12x)-4x^{2}+C$ .

5 0

2 years ago