2 years ago

Help please and thank you

Mathematics

1 answer:

Aliun [14]2 years ago

5 0

The length of TR is 8

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Keela can read 2/7 of a book in 3/4 of an hour. How long will it take her to read one full book

GuDViN [60]

Answer:

2 hours and 37.5 mins

I think

Step-by-step explanation:

2/7 : 3/4

divide both sides by 2

1/7 : 3/8

multiply both sides by 7

1 : 21/8

simplify

1 : 2 5/8

change 2 5/8 to hours and mins

2 hours and 37.5 mins

5 0

3 years ago

At 2:00 PM a car's speedometer reads 30 mi/h. At 2:20 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:20 the acce

storchak [24]

Answer:

The correct answer will be "60 min/hour".

Step-by-step explanation:

At time 2:00 PM

A car reads = 30 mi/h

At time 2:20 PM

A car reads = 50 mi/h

Now,

At time 2:00 PM

t = 0

At time 2:20 PM

t = $\frac{1}{3}$

$v(0)=30$

$v(\frac{1}{3})=50$

For MVT,

$v'(c)=\frac{v(\frac{1}{3} -v(0))}{(\frac{1}{3} )}$

$=\frac{20}{\frac{1}{3} }$

$=60 \ min/hour$

5 0

3 years ago

Helppppp please can someone please answer this

oksian1 [2.3K]

20 and 24 are the answers

4 0

3 years ago

Can someone show me how to even start with 1 and 2?

diamong [38]

All you need to know is that

$\displaystyle \lim_{x\to\infty}a^x=\begin{cases} \infty \text{ if } a>1\\1 \text{ if } a=1\\0 \text{ if } 0\leq a$

So, the first function grows exponentially and the second decays exponentially. The rate of growth/decay are the bases of the exponentials, which means 1.08 and 0.205

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2 years ago

Which of the following functions would result in a graph that is shifted three

Ivenika [448]

Answer:

B. f(x) = 4 log(x+3)

Step-by-step explanation:

B. f(x) = 4 log(x+3) : shifted three units to the left of g(x) = 4 logx

7 0

2 years ago