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Mademuasel [1]
3 years ago
10

Alanna can detail a car in 45 minutes. Robbie can detail a car in 30 minutes. If they work together, how many minutes does it ta

ke them to detail a car? (2 points)
Mathematics
1 answer:
valina [46]3 years ago
6 0
The answer is 18 minutes
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Today is Maria's birthday. She is 7 years old. How old is Maria in months?
Serggg [28]

Answer:

84 months

Step-by-step explanation:

Maria is 7 years old, there are 12 months in a year, multiply 12 by 7.

12 * 7 = 84

Maria is 84 months old

3 0
1 year ago
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Data: (12 ,8 , 6 , 12 , 16 , 12 ) median ............. mode......
Vesna [10]
Ascending order=  6, 8, 12, 12, 12, 16

No of observations (n) = 6
Median = Mean of the values of (n/2) and (n/2+1)
             = Mean values of 3rd and 4th values
             = 12+12/2
             = 12
Therefore, median = 12

Mode = Most number of observations= 12
4 0
3 years ago
Read 2 more answers
2 Points
Inga [223]

Answer:

D

Step-by-step explanation:

Given

9 - 7x = (4x - 3)² + 5 ← expand the squared factor

9 - 7x = 16x² - 24x + 9 + 5, that is

9 - 7x = 16x² - 24x + 14 ( subtract 9 - 7x from both sides )

0 = 16x² - 17x + 5, that is

16x² - 17x + 5 = 0 ← in standard form → D

4 0
3 years ago
F/4 + 16 &lt; 49<br> Solve the inequality
Mnenie [13.5K]

Answer:

f < 132

Step-by-step explanation:

Greetings!

I'm~Isabelle~Williams~and~I~will~be~answering~your~question!

Subtract~16~from~both~sides:

\frac{f}{4} +16-16 < 49-16

Simplify:

\frac{f}{4} < 33

Now,~multiply~both~sides~by~4:

\frac{4f}{4} < 33\times4

f < 132

Hope~my~answer~helps!~Have~a~great~day~ahead!

-Isabelle~Williams

5 0
3 years ago
The domain of f(x)= (2/3)^x is all negative numbers true or false
Salsk061 [2.6K]
False, probably. cause (2/3)^1 is defined
4 0
2 years ago
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