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Citrus2011 [14]
3 years ago
8

Rewrite 15+(72+19)using the Associative Law of Addition.

Mathematics
1 answer:
Maru [420]3 years ago
4 0

Answer:

(15+72)+19

Step-by-step explanation:

you get the same answer in the end bc all you have to do is rearrange the parentheses  

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Find abc !!!!!!!! !!!!!
KonstantinChe [14]

Answer:

58 degreess

3x+11=4x-5

-3x      -3x

11=x-5

+5   +5

16=x

x=6

3(6)+11

18+11

29

29*2

58

Step-by-step explanation:

8 0
2 years ago
Scarlet open a savings account and deposited $100 as principal. The account earns 10% interest, compounded yearly. What is the b
koban [17]

Answer:

190

Step-by-step explanation:

100x10x9/100=90

balance=100+90=190

5 0
3 years ago
Chad know 5 out of every 50 students has blue eyes there are 660 students in the school how many students have blue eyes
BigorU [14]

\frac{5}{50}  =  \frac{x}{660} \\ x = 66

3 0
3 years ago
What is the period of the graph of the equation y = a sin bx?
steposvetlana [31]

T=2π/|b|. The period of an equation of the form y = a sin bx is T=2π/|b|.

In mathematics the curve that graphically represents the sine function and also that function itself is called sinusoid or sinusoid. It is a curve that describes a repetitive and smooth oscillation. It can be represented as y(x) = a sin (ωx+φ) where a is the amplitude, ω is the angular velocity with ω=2πf, (ωx+φ) is the oscillation phase, and φ the initial phase.

The period T of the sin function is T=1/f, from the equation ω=2πf we can clear f and substitute in T=1/f.

f=ω/2π

Substituting in T=1/f:

T=1/ω/2π -------> T = 2π/ω

For the example y = a sin bx, we have that a is the amplitude, b is ω and the initial phase φ = 0. So, we have that the period T of the function a sin bx is:

T=2π/|b|

7 0
3 years ago
You received a ​$100 gift certificate to a clothing store. The store sells​ T-shirts for ​$12 and dress shirts for ​$21. You wan
Kay [80]

Answer:

3 dress shirts and 3 T-shirts

4 dress shirts and 1 T-shirt

Step-by-step explanation:

You must spend at least $93 and no more than $100.

2 dress shirts: $42 + 5 T-shirts: $60 = $102 too much money

2 dress shirts: $42 + 4 T-shirts: $48 = $90 too much money left

3 dress shirts: $63 + 3 T-shirts: $36 = $99 this works

4 dress shirts: $84 + 1 T-shirt: $12 = $96 this works

5 dress shirts: $105 too much money

Answer:

3 dress shirts and 3 T-shirts

4 dress shirts and 1 T-shirt

4 0
3 years ago
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