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3 years ago

Who want to help me out

Mathematics

1 answer:

Readme [11.4K]3 years ago

4 0

Answer:

A, B, and C

Step-by-step explanation:

Since there are no right angles, 89 is too close to 90 which is a right angles (which there are no angles even close to 90) and 94 would be too large since all angles are less than 90 degrees.

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Find the value of n in the following

Ierofanga [76]

N+3.1/ 6.4= 96
N= 95.515625

7 0

2 years ago

Answer this and EXPLAIN why and HOW you got your answer!<br><br> SHOW YOUR WORK.......

salantis [7]

You will need to set up your table of values for each person.

Let x represent the months, and y for the amount of money.

For Carissa: For Louann:
x = y x = y
-- -- -- --
0 $250     0 $1230
1 $330    1 $1170
2 $410 2 $1110
3 $490     3 $1050
4 $570 4 $990
5 $650   5 $930
6 $730   6 $870
7 $810 7 $810

You could also do the equation:
80x + 250 = -60x + 1250
where you will get x=7.
Then substitute 7 to the x's in the equation which will give you $810 for each.

The answer is: It will take 7 months. Then, they will both have $810 in their accounts.

6 0

3 years ago

Read 2 more answers

Find the volume of the solid that lies between planes perpendicular to the x-axis at x = pi/4 and x = 5pi/4. The cross-sections

svp [43]

Answer:

The volume of the solid = π²

Step-by-step explanation:

As per the given data of the questions,

The diameter of each disk is

D = 2 sin(x) - 2 cos(x)

So its radius is

R = sin(x) - cos(x).

The area of each disk is

$= \pi \times(sinx-cosx)^{2}$

$= \pi \times [sin^{2}(x) - 2 sin(x) cos(x) + cos^{2}(x)]$

$= \pi[1-2sin(x)cos(x)]$

$= \pi[1-sin(2x)]$

Now,

Integrate from $x=\frac{\pi}{4}\ \ \ to\ \ \ x=\frac{5\pi}{4}$ , we get volume:

$V=\int_{\frac{\pi}{4}}^{\frac{5\pi}{4}} \pi[1-sin(2x)]dx$

After integrate without limit we get

$V=\pi[x+\frac{cos2x}{2}]$

Now after putting the limit, we get

V = π²

Hence, the required volume of the solid = π²

3 0

3 years ago

6x – 2х + 8у – 6y simplified expression

Sholpan [36]

Answer:

4x+2y

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

At his last track meet, Eli ran the 400-meter dash in 54 seconds. His friend Kimberly bet him that he couldn't run a whole kilom

Trava [24]

Answer:

Eli has to run for 2.25 minutes at this pace to win the bet.

Step-by-step explanation:

At his last track meet, Eli ran the 400-meter dash in 54 seconds.

So, the speed of Eli's run is $\frac{400}{54} \times 60 = 444.44$ meters per minute.

Now, if Eli is determined to run a whole kilometer with the same speed, then it will take Eli to run 1 kilometer within $\frac{1000}{444.44} = 2.25$ minutes.

Hence, Eli has to run for 2.25 minutes at this pace to win the bet. (Answer)

6 0

3 years ago