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Bumek [7]
3 years ago
6

Me trying to pass test

Mathematics
2 answers:
user100 [1]3 years ago
6 0

Answer:

b

Step-by-step explanation:

b is the answer to your test

nikdorinn [45]3 years ago
4 0

Answer:

C

Step-by-step explanation:

It does not touch two points at once so it passes the vertical line test or pencil test.

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The sum of four numbers is 1,320. The sum of three of the numbers is 40% more than the other number, x. What is the value of x ?
ziro4ka [17]

Answer:

550

Step-by-step explanation:

We aren't given that they are consecutive so lets just pretend the numbers are x, y, z , and r.

We are given x+y+z+r=1320

We are also given that y+z+r=.4x+x

Simplifying my second equation gives us y+z+r=1.4x. I'm going to plug this into first equation giving me

x+1.4x=1320

2.4x=1320

So x=1320/2.4=550

6 0
3 years ago
Read 2 more answers
There are 80 pupils in a school. If 32 are boys, what percentage are boys?
maks197457 [2]

Answer:

40%

Step-by-step explanation:

32/80=.4

8 0
3 years ago
Read 2 more answers
High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers
Maurinko [17]

Answer:

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

Step-by-step explanation:

<u><em>Step:-1</em></u>

Given that the mean of the Population = 540HP

Given that the size of the sample  'n' = 9

Given that the mean of the sample = 570HP

Given that the sample standard deviation = 30HP

<u><em>Step(ii):-</em></u>

<u><em>Degrees of freedom = n-1 =9-1 =8</em></u>

<u><em>t₀.₀₀₅ = 3.3554</em></u>

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(x^{-} - t_{\frac{0.01}{2} ,8} \frac{S.D}{\sqrt{n} } ,x^{2}  + t_{\frac{0.01}{2},8 } \frac{S.D}{\sqrt{n} } )

(570-3.354\frac{30}{\sqrt{9} } , 570+3.354\frac{30}{\sqrt{9} } )

(570 - 33.54 , 570+33.54)

(536.46 , 603.54)

<u><em>Final answer</em></u> :-

<em>The 99% of a confidence interval for the average maximum HP for the experimental engine.</em>

<em>(536.46, 603.54)</em>

<em></em>

4 0
3 years ago
Round 14.603 to the nearest hundredth
Finger [1]

The answer is 14.60. Hope this helps!

7 0
3 years ago
Read 2 more answers
Planet Krypton has 2 times the radius and 2 times the mass of the Earth. What is the best estimate for the magnitude of the grav
kramer

Answer:

a

Step-by-step explanation:

it's a because it would be ×2

7 0
3 years ago
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