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Talja [164]
1 year ago
5

Christa had a music lesson every week for one year.

Mathematics
1 answer:
raketka [301]1 year ago
4 0

Answer:

39 hours

Step-by-step explanation:

52 × 45 = 2340

2340 mins into hours = 39 hours

hope this helps :)

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How many teaspoons are in 200 milliliters? 1 tsp = 5 ml 200 mL = [?] tsp​
ludmilkaskok [199]

Answer: 40

Step-by-step explanation:

using dimensional analysis ( you might not have learned this yet, but it's basically multiplying things to cancel out units)...

200 ml * (1 tsp/ 5 ml) = 40 tsp  

8 0
3 years ago
Use f(x) = 2 x and f-'(x) = 2x to solve the problems.
Marrrta [24]

Answer:

a) 1

b) 2

c) 2

Step-by-step explanation:

a) f(2) means find the output for \frac{1}{2}x when x=2.

\frac{1}{2}(2)

\frac{2}{2}

1

b) f^{-1}(1) means find the output for 2x when x=1

2(1)

2

c) If f and f^{-1} are truly inverses then f(f^{-1}(u))=u and f^{-1}(f(u))=u as long as u satisfies the domains.

So we should be able to conclude that f^{-1}(f(2))=2 with no work.

However, I will also show work.

f^{-1}(f(2))

f^{-1}(1)    since    f(2)=1 from part a.

2            since    f^{-1}(1)=2 from part b.

6 0
3 years ago
HELP ILL GIVE YOU BRAINLIEST
Alex Ar [27]

Answer:

1. Distributive Property

2. Addition Property of Equality

3. Multiplicative Property of Equality

Step-by-step explanation:

1. The 3 is multiplied by each number in the parenthesis

3*10=30

3*2=6

So 3*(10-2x)=30-6x

2. The 30 is subtracted from both sides

30-6x-30 = -6x

6-30 = -24

30-6x-30=6-30

So -6x=-24

3. The -6 is divided from both sides

-6x/-6 = x

-24/-6 = 4

-6x/-6 = -24/-6

So x=4

7 0
2 years ago
Which term describes the red curve in the figure below?
EleoNora [17]

Answer:

the answer was circle


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
1. Is the function g(x) increasing or decreasing over the interval -2 < x <-1?
Sergeeva-Olga [200]

Answer:

g(x) increasing

h(x) decreasing

Step-by-step explanation:

Since the value of y gets larger as the value of x increases over the interval -2 <x<-1 for the function g(x), the function is increasing

Since the value of y gets smaller as the value of x increases over the interval -2 <x<-1 for the function h(x), the function is decreasing

5 0
3 years ago
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