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3 years ago

ANSWER ASAP FOR BRANINETEST

Mathematics

2 answers:

zalisa [80]3 years ago

8 0

Answer:

2 3/5

Step-by-step explanation:

Simply change the 1st fraction into improper form:

17/5 - 4/5

Then subtract

13/5

Then write into mixed fraction

2 3/5

Sedaia [141]3 years ago

5 0

Answer:

13/5 or 2 3/5

Step-by-step explanation:

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Pls can someone answer how to round 5pi to the nearest 10th I’ll give you brain points or whatever

mojhsa [17]

Answer:

Step-by-step explanation:

5 $\pi$ =15.70...

To round a number to the nearest tenth , look at the next place value to the right (the hundredths)which is 0 in this question.

Thus, it will become 15.7

4 0

3 years ago

Help i will mark you as brainliest if u get it correct

svlad2 [7]

Answer:

-0.3125

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

PLEASE HELP LAW OF COSINES

chubhunter [2.5K]

The Law of Cosine states
cos $C=(a^2+b^2-c^2)/2ab$

so plugging in the numbers gives us

cos $J=(13^2+19^2-11^2)/2(13*19) = 409/494$

We now have cosJ so plug that into your calculator and find arccos (arccos(cos(J)) = J)
arccos $(409/494)=34.11$
rounding your answer will give you 34°

7 0

2 years ago

Read 2 more answers

A word processor that was purchased for $600

klasskru [66]

The slope of the graph shows the rate of change, or, in this case, the rate of depreciation, which you are told is $100 per year. So, depending upon the units used in your graph, the slope will be 100/1, and since it is a decrease as the years increase, it will have a negative slope, i.e. -100/1.

Or, if you had drawn your graph with units of $100 dollars on the y-axis, then you might say that the slope was -1 / 1.

The corresponding formula would of course be

y = 600 - 100t

where y = value after t years, and (if you are into calculus) differentiating would give you

slope = dy/dt = -100

<span>as noted above.</span>

4 0

2 years ago

A race track is made from two straights and two semicircles. The straights are 80m long. The race track has a total perimeter of

Dmitriy789 [7]

Answer:

76.4 m

Step-by-step explanation:

The race track has two straights and two semi circles.

Each straight is 80m

total perimeter for the straights is 80 * 2 = 160m

two semi circles which creates a full circle

perimeter of a full circle = $\pi$ d

NB : (d) is the diameter

therefore we can find the value of the diameter

400 = 160 + $\pi$ d

400- 160 = $\pi$ d

240 = $\pi$ d

d = 240/ $\pi$

d = 76.394.....

<u>d = 76.4 m</u>

3 0

3 years ago