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3 years ago

PLEASE PLEASE HELP!!

Mathematics

1 answer:

HACTEHA [7]3 years ago

4 0

The answer is 1, 4, and 5 because to be linear, they have to make up a straight line together.

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Determine the equation of a line parallel to the line y = 3 that contains the point (2,-3).

NeX [460]

The line would be y=-3

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3 years ago

After 9 new members joined the ski club, there were 38 members. How many members had been in the club previously?

dezoksy [38]

Answer:

Previously, there were 29 members in the ski club

Step-by-step explanation:

Subtract 9 from 38

6 0

3 years ago

Read 2 more answers

confirm or disprove ernest's work by selecting two different points and applying the slope formula. be sure to identify the poin

yan [13]

Answer:

Part a) Ernest's calculation was correct

Part b) Ernest's calculation was correct

Step-by-step explanation:

The picture of the question in the attached figure

<u><em>The complete question is</em></u>

Ernest calculated the slope of the graph during the uphill climb to be 10. His work is shown below.

Points: (60.900). (15, 450)

Slope : 900-450/60-15=450/45=10

Part a) Determine whether his calculation was correct or incorrect, and then explain why.

Part b) Confirm or disprove Ernest's work by selecting two different points and applying the slope formula. be sure to identify the points you chose

Part a)

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the points

A(60,900),B(15,450)

Remember that

$m_A_B=m_B_A$

step 1

Find $m_A_B$

substitute in the formula

$m_A_B=\frac{450-900}{15-60}\\\\m_A_B=\frac{-450}{-45}=10$

step 2

Find $m_B_A$

substitute in the formula

$m_B_A=\frac{900-450}{60-15}\\\\m_B_A=\frac{450}{45}=10$

therefore

Ernest's calculation was correct, because $m_A_B=m_B_A$

Part b) selecting two different points

we take the points

(0,300) and (50,800) -----> see the attached figure

substitute in the formula of slope

$m=\frac{800-300}{50-0}$

$m=\frac{500}{50}$

$m=10$

therefore

Ernest's calculation was correct

8 0

3 years ago

The ampitude/frequency/period of y=1/4cos1/2x is 4 pie

Fantom [35]

Amplitude: 1/4 (= |a|)
Frequency: 1/2 (= |b|)
Period: 4pi (= 2pi/|b|)

7 0

4 years ago

an apple tree grew 8 feet tall to 10 feet tall over the course of a year what is the percentage change in the tree height ASAP P

ikadub [295]

Answer:

25%

Step-by-step explanation:

height grown in a year = 10 - 8 = 2

$\frac{2}{8}*100=\frac{2*100}{8}\\\\=\frac{200}{8}=25%$

5 0

4 years ago