3 years ago

Is the correct or this wrong, pleaee let me know if its wrong and explain

Mathematics

2 answers:

Natalija [7]3 years ago

6 0

Wrong. its clearly wrong like how can you think that is right.

Reptile [31]3 years ago

4 0

Your y-int. is correct but your slope is wrong . you go up 2 to the right 1 time then repeat

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There are 15 students in a social studies class. Two students will be selected to present their term projects today. In how many

xz_007 [3.2K]

Given:
15 students
2 students must be chosen.
No repetition, no order

This is a combinations problem. We use this formula: n! / (n-r)!(r!)

n = 15 ; r = 2

15! / (15-2)!(r!) ⇒ 15! / 13! * 2! = 105

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2 years ago

Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki

Lena [83]

Mia walked 7km/h so after 1 hour, she is 7 km north of the house of Julia

Samantha walked 11km/h so after 1 hour, she is 11 km west of the house of Julia.

The points where Mia and Samantha are after 1 hour , and the house of Julia form a right triangle with sides 7 and 11 km. The distance between the girls, is the hypotenuse of his triangle.

by the pythagorean theorem:

$MS= \sqrt{ 7^{2} + 11^{2} }= \sqrt{49+121}= \sqrt{170}= 13 (km)$

Answer: 13 km

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3 years ago

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There are 910 scooters in a show room out of which 654are new and rest are old. find out number of old scooters

Soloha48 [4]

Answer:

254

Step-by-step explanation:

Because the are 910 scooters in all and their 654 new that means the remains are old

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1 year ago

A principal at a large high school wants to estimate the number of days freshmen regularly ride the bus to school.

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b. using a sample of size 40

Step-by-step explanation:

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2 years ago

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A notary receives $ 3500 for elaborating a title property and $2000 for the constitutive act of an enterprise. In a month did a

Andrew [12]

Answer:

6 titles and 16 acts were elaborated

Step-by-step explanation:

Let the number of titles be t and the number of acts be a

Since the total is 22 operations:

a + t = 22 •••••••(i)

Total amount from titles = 3500 * t = 3500t

Total amount from acts = 2000 * a = 2000a

2000a + 3500t = 53,000 ••••••(ii)

From i, a = 22-t

Insert this in ii

2000(22-t) + 3500t = 53,000

44,000 - 2000t + 3500t = 53,000

1,500t = 53000-44000

1500t = 9000

t = 9000/1500

t = 6

But a = 22 -

= 22-6 = 16

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3 years ago