Ask question

Ask question

All categories

4 years ago

5

The weather forecast calls for high temperatures between 69° and 75°. Write this as an absolute value inequality, with t as temp

erature.

1 answer:

valentinak56 [21]4 years ago

7 0

| t - 72 | < 3
<span>Two conditions </span>
<span>t - 72 < 3 </span>
<span>t < 75 </span>

<span>t - 72 > - 3 </span>
<span>t > - 3 + 72 </span>
<span>t > 69</span>

You might be interested in

10. Answer True or False for the following statements. If false, justify what would make the statement true. a. If the least-squ

Free_Kalibri [48]

Answer:

a) TRUE

b) FALSE

c) FALSE

d) TRUE

e) FALSE

Step-by-step explanation:

a)

TRUE because the slope of the correlation line is 2 and this is the rate of change of y respect to x

b)

FALSE

The correlation coefficient r is always between -1 and 1, so it can never be greater than one

c)

FALSE

A student might expect that there is a positive correlation between the age of their laptop and its resale value only if after collecting a large enough sample of data that relates age of the student and price of resale of their laptop, he or she finds that there is a positive correlation coefficient r>0

d)

TRUE

If there is a positive correlation, then the greater the x, the greater the y

e)

FALSE

If there is no correlation between the independent and dependent variables, then the value of the correlation coefficient must be 0.

7 0

4 years ago

Question : WHICH OF THE LINES IS PARALLEL ? HOW DO YOU KNOW ?

aleksandr82 [10.1K]

Answer:

B and R

I think that is the name of the lines. If not the the first two lines!!!!

8 0

3 years ago

Willian bought 11 books. He decided to present 2 books to each of his friends and still have one book left. Find the number of f

ira [324]

Answer:

i think he has 5 friends

Step-by-step explanation:

sorry if im wrong

7 0

3 years ago

Read 2 more answers

Is the perpendicular bisector of a line segment also an angle bisector?

algol13

Answer:

yes

Step-by-step explanation:

In an isosceles triangle, one perpendicular bisector is also an angle bisector.

8 0

3 years ago

In 4 minutes, a conveyor belt moves 800 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt

kkurt [141]

Answer:

It takes 2 minutes 4 seconds to move the cans to storage area if both the belts are used.

Step-by-step explanation:

Given - In 4 minutes, a conveyor belt moves 800 pounds of recyclable

aluminum from the delivery truck to a storage area. A smaller belt

moves the same quantity of cans the same distance in 6 minutes.

To find - If both belts are used, find how long it takes to move the cans

to the storage area.

Proof -

Given that,

Larger belt take 4 minutes to transfer the aluminium from delivery truck to storage area.

⇒ Time taken by Larger belt = 4 min/ shifting

Also,

Smaller belt take 6 minutes to transfer the aluminium from delivery truck to storage area.

⇒ Time taken by Smaller belt = 6 min/ shifting

Now,

As we know that Time is inversely proportional to time, so

Rate of Larger Belt = $\frac{1}{4}$ shifting/min

Rate of Smaller Belt = $\frac{1}{6}$ shifting/min

Now,

Let us assume that , if both belts used then,

Total time taken = x min/shifting

Then, Rate = $\frac{1}{x}$ shifting/min

Now,

$\frac{1}{4}$ + $\frac{1}{6}$ = $\frac{1}{x}$

⇒ $\frac{6 + 4}{24} = \frac{1}{x}$

⇒ $\frac{10}{24} = \frac{1}{x}$

⇒10x = 24

⇒x = $\frac{24}{10}$ = 2.4 minutes

∴ we get

It takes 2 minutes 4 seconds to move the cans to storage area if both the belts are used.

3 0

3 years ago