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3 years ago

Write a linear equation in point slope form for the line that goes through (-1,1) and (1,-3)

Mathematics

1 answer:

lara [203]3 years ago

7 0

C I think but not positive

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Jasmine is planning a surprise birthday for one of her coworkers. One pizza is $11 and a cake is $18. If Jasmine has $84, how ma

Irina-Kira [14]

84-18=66
66 divided by 11 =6
Jasmine can buy 6 pizzas and 1 cake with $84

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3 years ago

A disk with radius 3 units is inscribed in a regular hexagon. Find the approximate area of the inscribed disk using the regular

grigory [225]

Answer:33

Step-by-step explanation:

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3 years ago

At lunch a waiter had seven customers and two of them didn’t leave a tip.If he got seven each from the ones who did tip how much

11Alexandr11 [23.1K]

Answer:

$35

Step-by-step explanation:

7 customers - 2 who didn't tip = 5 who did tip

$7 from those who did tip * 5 ppl who tipped = $35 earned

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2 years ago

Identify the sequence graphed below and the average rate of change from n = 1 to n = 3.

dsp73

Answer:

The required sequence is $a_n=20(\frac{1}{2})^{n-1}$ . The average rate of change from n = 1 to n = 3 is -7.5.

Step-by-step explanation:

From the given graph it is clear that the sequence is a GP because the all terms are half of their previous terms.

Here, $a_2=10,a_3=5,a_4=2.5,a_5=1.25$

$r=\frac{a_3}{a_2}=\frac{5}{10}=\frac{1}{2}$

The common ratio of GP is 1/2.

$r=\frac{a_2}{a_1}$

$\frac{1}{2}=\frac{10}{a_1}$

$a_1=20$

The first term of the sequence is 20.

The formula for sequence is

$a_n=a(r)^{n-1}$

Where a is first term and r is common difference.

The required sequence is

$a_n=20(\frac{1}{2})^{n-1}$

The formula for rate of change is

$m=\frac{f(x_2)-f(x_1)}{x_2-x_1}$

The average rate of change from n = 1 to n = 3 is

$m=\frac{f(3)-f(1)}{3-1}$

$m=\frac{5-20}{3-1}$

$m=\frac{-15}{2}=-7.5$

Therefore the required sequence is $a_n=20(\frac{1}{2})^{n-1}$ . The average rate of change from n = 1 to n = 3 is -7.5.

8 0

4 years ago

Read 2 more answers

10) Solve the equation for the variable "a":<br> 2(x + a) = 4b

masya89 [10]

Answer:

a= 2b-x

Step-by-step explanation:

You have to isolate the variable by dividing each side of the factors that does not contain the variable "a".

3 0

3 years ago