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3 years ago

7

The number of students in a school increased by 25%between last year and this year. Last year there were 250 students in the sch

ool what is the population this year?

2 answers:

Gelneren [198K]3 years ago

6 0

Pretty sure it’s 275 students.

alexandr1967 [171]3 years ago

5 0

I think it's 275 sorry if I'm wrong

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Consider the parametric curve:

11Alexandr11 [23.1K]

By the chain rule,

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\frac{\mathrm dy}{\mathrm dt}}{\frac{\mathrm dx}{\mathrm dt}}=\dfrac{4\sec t\tan t}{3\sec^2t}=\dfrac43\sin t$

When $t=\pi$ , we have

$\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{t=\pi}=\dfrac43\sin\pi=0$

7 0

3 years ago

HELP ME WITH 9, 11, 12

mart [117]

Answer:

<u>Question 9</u>

Name the ordered pairs in the table: 3, 4, 5, 6, 7

Ordered pairs: (1,3), (2,4), (3,5), (4,6), (5,7)

Graph the equation: the attachment

Step-by-step explanation:

I don't know how to do questions 11 and 12.

Also sorry if these aren't correct.

8 0

3 years ago

If 2x - 3y = 24 and 3x + 4y = 2, what is the value of x - y?

ruslelena [56]

Answer:

10

Step-by-step explanation:

<u><em>y = -4 </em></u>

<u><em>x = 6 </em></u>

<em><u>x-y = 6-(-4) = 6+4 = 10</u></em>

<em><u /></em>

8 0

3 years ago

25. The temperature was -7°F. During the

Alja [10]

Answer:

13

Step-by-step explanation:

6-(-7)=13

4 0

3 years ago

A rectangle has an area of 28 ft2. If the width of the rectangle is 5 ft, what is the length?

Jobisdone [24]

Area of a Rectangle = Length x Width
28 ft² = L x 5ft
28 ft² / 5ft = Length
5.6 ft = length. CHOICE A.

Perimeter of a Rectangle = 2(L + W)
20 ft = 2(L + 4)
20 ft = 2L + 8
20 - 8 = 2L
12 = 2L
12/2 = 2L/2
6 ft= Length CHOICE A.

5 0

3 years ago