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Feliz [49]
3 years ago
12

Rhonda tutors students after school. She charges $25 per hour to tutor math students and $30 per hour to tutor science students.

Mathematics
2 answers:
Mamont248 [21]3 years ago
6 0

Answer:

[3x25]+[5x30]

Step-by-step explanation:

harina [27]3 years ago
3 0

Answer:D

Step-by-step explanation:

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Riley is 3 years older than his sister Which of the following represents the sum of their age? A-3s B-s+3 C-2(s+3) D-2s+3
Rainbow [258]
It's D-2s+3  have a nice day

4 0
4 years ago
WILL GIVE BRAINLIEST, AMAZING RATING, AND THANKS!
crimeas [40]

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5 0
3 years ago
Read 2 more answers
Simplify 3 squared 2 ⋅ 3 squared 5
Mnenie [13.5K]

Answer:

45

Step-by-step explanation:

(

3

√

5

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2

9

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2

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5

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7 0
3 years ago
Read 2 more answers
A. 20*<br><br> B. 25*<br><br> C. 45*<br><br> D.30*
Tomtit [17]

D. 30* Because This is definitely smaller than a 45 degree angle. If it was a bit wider it would be.

6 0
4 years ago
A toy maker claims his best product has an average lifespan of exactly 14 years. A skeptical quality control specialist asks for
slamgirl [31]

Answer:

interval = [17.3948 , 20.6052]

Step-by-step explanation:

given,

random sample (n) = 45

average product lifespan = 19 years

standard deviation = 4 years

confidence interval of 99 %  = ?

we know,

t* = qt(1.99/2 + 44 ) = qt(0.995,44)

t* = 2.692

so,

interval

x = 19 \pm t* \times (\dfrac{s}{\sqrt{n}})

x = 19 \pm 2.692 \times (\dfrac{4}{\sqrt{45}})

x = 19 \pm 2.692 \times 0.5963

x = 19 \pm 1.6052

interval = [19 - 1.6052 , 19 + 1.6052]

interval = [17.3948 , 20.6052]

4 0
3 years ago
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