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3 years ago

Please answer this question now in two minutes

Mathematics

2 answers:

KengaRu [80]3 years ago

7 0

Pretty sure its 76?

tekilochka [14]3 years ago

6 0

Answer:

Step-by-step explanation:

to check if add all angles and see if they add to 180,

then find the sides that are congruent

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Points if anyone wants them will mark brainlest

Vladimir [108]

Answer: is not a lot of points but thx for the points

it is 5 points

Step-by-step explanation: have a nice day

6 0

2 years ago

Please help like rn !!!!!!!!!!!!!!!

forsale [732]

Answer:

$455.84

Step-by-step explanation:

find area of the two halves of the circle and the rectangle

area of circle= $\pi r^{2}$

where r= 2 ft

therefore

$\pi (2)^{2}\\=12.56 ft^{2}$

area of rectangle= $w*l$

where w= 4ft and l= 5ft

therefore

$(4)(5) \\=20 ft^{2}$

add areas together

$12.566 + 20 \\=32.56 ft^{2}$

it costs $14 per square foot and there are 32.566 square feet, so multiply

$14 * 32.56 \\= $455.84$

3 0

2 years ago

A machine is used to fill Apple Juice bottles with juice. The machine has a known standard deviation of σ = 0.05 liters. The tar

Lina20 [59]

Answer:

The probability that the quality control manager will shut down the machine is 0.0002.

Step-by-step explanation:

We are given that a machine is used to fill Apple Juice bottles with juice. The machine has a known standard deviation of σ = 0.05 liters. The target mean fill volume is µ = 2.0 liters.

A quality control manager obtains a random sample of 50 bottles. He will shut down the machine if the sample of these 50 bottles is less than 1.95 or greater than 2.1.

Let $\bar X$ = sample mean fill volume

The z score probability distribution for sample mean is given by;

Z = $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\mu$ = population mean fill volume = 2 liters

$\sigma$ = standard deviation = 0.05 liters

n = sample of bottles = 50

Now, it is provided that he will shut down the machine if the sample of these 50 bottles is less than 1.95 or greater than 2.1.

So, Probability that the sample of these 50 bottles is less than 1.95 is given by = P( $\bar X$ < 1.95)

P( $\bar X$ < 1.95) = P( $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$ < $\frac{1.95-2}{\frac{0.05}{\sqrt{50} } }$ ) = P(Z < -7.07) = 1 - P(Z $\leq$ 7.07)