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Contact [7]
3 years ago
9

Evaluate the expression 3x for x = 7

Mathematics
2 answers:
zavuch27 [327]3 years ago
8 0

Answer:

3(7)

the answer is 21

Step-by-step explanation:

slava [35]3 years ago
8 0

Answer:

the answer is 21.

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Riley is 3 years older than his sister. Which of the following expressions shows the sum of their ages if s represents Riley's s
erik [133]
If s is the Riley`s sister`s age and Riley is 3 years older so Riley`s age is:
s/3 so the sum of their ages is:
s + s/3 = 4s/3 :)))
i hope this is helpful
have a nice day 
3 0
4 years ago
Verify the identity. Show your work.<br> cot0 x sec0= csc0
BabaBlast [244]

(by 0 i mean the "theta" sign)

cot0 x sec0 = csc0

(cos0/sin0) x (1/cos0) = 1/sin0

1/sin0 = 1/sin

6 0
3 years ago
Hiro and his co-workers had lunch at a restaurant near their work. An 18% tip on their bill was $10.08. How much was the bill, n
Ghella [55]

Answer:

$8.27

Step-by-step explanation:

First we need to find the tip.  We know it was 18% of the total. So...

x (the variable we need to find)         18%

__                                                   =     ___

10.08 (the total bill including tip)        100%

cross multiply

100x = 181.44

--------------------   (divide by 100 to get x by itself)

100

x = 1.81 (The 18% tip that was given)

So now we know how much the tip was, we subtract it from the bill

10.08 - 1.81 = $8.27

5 0
3 years ago
Given the following absolute value function find the range.
arlik [135]

Answer:

Range is (-8,00)

Step-by-step explanation:

4 0
3 years ago
*One half of two fifths of x.
Nataly_w [17]

Answer:

one half of two fifths of x would be equivalent to one fifth of x

3 0
3 years ago
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