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kramer
3 years ago
14

What is the range of f(x)=1/2^x

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
8 0
Downloaded Photomath it’s going to help you a lot
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-4r-11=4r+21 pls help <br>​
Masja [62]

-4r-11=4r+21

Move 4r to the other side

Sign changes from +4r to -4r

-4r-4r-11=4r-4r+21

-4r-4r-11=21

-8r-11=21

Move -11 to the other side

Sign changes from -11 to +11

-8r-11+11=21+11

-8r=21+11

-8r=32

Divide both sides by -8

-8r/-8=32/-8

Answer: r=-4

8 0
3 years ago
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Sin∅=3/5, then cos∅=_____
alexandr1967 [171]

Answer:

4/5.

Step-by-step explanation:

The right triangle with this angle in it has sides 3, 4 and 5.  ( 5^2 = 3^2 + 4^2).

So as sin∅ = 3/5,  the opposite side to angle ∅ is 3 , the hypotenuse is 5 and the adjacent side must be 4 units long.

So cos∅ = adjacent side/hypotenuse = 4/5.

7 0
3 years ago
Need help with these show work pls
Amiraneli [1.4K]

Answer:

3. 35 adults and 420 children

4. The three numbers are 13, 52 and 16

Step-by-step explanation:

3. Let the number of adults be x.

Since there are 12 times more children than adults,

number of children= 12x

Total number of people= 12x +x

13x= 455

x= 455 ÷13

x= 35

12x= 35(12)

12x= 420

Therefore, there are 35 adults and 420 children at the play.

4. Let the first number be x.

Since the 2nd number is 4 times the first,

2nd number= 4x

Third number is 3 more than the first:

3rd number= x+3

sum of numbers= x +4x +x+3

6x +3= 81 (simplify)

6x= 81 -3 (bring constant to 1 side)

6x= 78 (simplify)

x= 78 ÷6

x= 13

Second number

= 4x

= 4(13) (subst. x=13)

= 52 (expand)

third number

= x +3

= 13 +3 (subst. x=13)

= 16

8 0
3 years ago
Hey I'm Chloe can you help me, thanks, I'll give you Brainiest :)
defon

Answer:

4 is the answer

Step-by-step explanation:

gjgffgbfy

3 0
3 years ago
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What interval notation represents the data graphed below?
Nataly_w [17]

Answer: [-2,5)

Step-by-step explanation: A closed circle means a bracket and an open circle means Parentheses.

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3 years ago
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