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3 years ago

Plz help me this is 7th grade math

Mathematics

1 answer:

Anna007 [38]3 years ago

3 0

Answer:

second

Step-by-step explanation:

No because angles 1 and 2 are same side interior angles but are not supplementary

if the lines were parallel than the same side interior angles 1 and 2 add to 180

60 +115 = 175 so the lines are not parallel

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A bus travels 90 km in 1.5 hours (with a constant speed). How far can it travel in 7.2 hours (with the same speed)?

blondinia [14]

Answer:

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speed of the bus=distance /time

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speed of the bus=60km/h

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3 years ago

For a saturday matinee, adult tickets cost $5.50 and kids under 12 pay only $4.00. if 60 tickets are sold for a total of $285. h

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3 years ago

An accident at an oil drilling platform is causing a circular-shaped oil slick to form. The volume of the oil slick is roughly g

Basile [38]

Answer:

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Step-by-step explanation:

we have

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3 years ago

The lengths of pregnancies are normally distributed with a mean of 269269 days and a standard deviation of 1515 days. a. Find th

kati45 [8]

Answer:

a. 0.38%

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Step-by-step explanation:

We have the following data, mean (m) 269 and standard deviation (sd) 15, therefore:

a. The first thing is to calculate the number z:

z (x) = (x - m) / sd

z (309) = (309-269) / 15 = 2.67

When looking in the normal distribution table (attached), we have that at this value of z, the probability is:

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b. Find the z-value with a left tail of 44%, i.e. 0.44. We look in the table for this value and what value of z corresponds.

invNorm (0.44) = -0.15

Find the corresponding number of days:

x = z * sd + m

we replace

d = -0.15 * 15 + 269 = 266.75 days

7 0

3 years ago

ASAP!! can someone help solve any of these? whoever answers the most gets brainliest, i underlined the questions

Pachacha [2.7K]

Answer:

can u please type out the photo is too dark to see the questions

Step-by-step explanation:

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3 years ago