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4 years ago

9

Davia draws a shape with 5 sides . two sides are each 5 inches long. two other sides are each 4 inches long. the perimeter of th

e saphe is 27 inches . what is the length of the fifth side ?

1 answer:

soldier1979 [14.2K]4 years ago

5 0

The fifth side is 9 inches

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The price of a share of stock in JZMobile was $74 two weeks ago. Seven weeks ago, the price was $59 a share. Which linear equati

jok3333 [9.3K]

Given:

The price of a share of stock in JZMobile was $74 two weeks ago.

Seven weeks ago, the price was $59 a share.

To find:

The linear equation to find the price p of a share of JZMobile w weeks from now.

Solution:

Let, p be the price of a share of JZMobile w weeks from now.

The price of a share of stock in JZMobile was $74 two weeks ago. It means, the graph of linear equation passes through (2,74).

Seven weeks ago, the price was $59 a share. It means, the graph of linear equation passes through (7,59).

The graph of linear equation passes through two points (2,74) and (7,59). So, the linear equation is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

$y-74=\dfrac{59-74}{7-2}(x-2)$

$y-74=\dfrac{-15}{5}(x-2)$

$y-74=-3(x-2)$

$y-74=-3x+6$

Adding 74 on both sides, we get

$y=-3x+6+74$

$y=-3x+80$

$y=80-3x$

Therefore, the correct option is C.

6 0

3 years ago

lauren wants to keep her cell phone bull under $60 per month. Her current cell phone plan is $30 per month plus $0.50 per text.

stellarik [79]

Answer:

The correct answer is t < 60.

Step-by-step explanation:

Lauren wants to keep her cell phone bill below $60 per month.

Lauren's current cellphone plan charges her a fixed price of $30 and per text price for one text is $0.50.

Let Lauren sends t texts in a complete month.

Total money spent on texts in a month is given by $ (0.50 × t)

Therefore Lauren's total spent in a month is given by $ (30 + (0.50 × t)).

But this amount should be under $60 as per as the given problem.

∴ 30 + (0.50 × t) < 60

⇒ (0.50 × t) < 30

⇒ t < $\frac{30}{0.50}$

⇒ t < 60.

So in order to keep her phone monthly bill under $60, Lauren should keep her number of texts below 60.

8 0

3 years ago

Which of the following is not an ordered pair from the function f(x) = 5x - 6?

DerKrebs [107]

We have been given a function $f(x) = 5x - 6$ . We are asked to choose the point from given choices, which is not a solution of given function.

Let us check each given point one by one.

A. (3,9)

$f(x) = 5x - 6$

$9= 5(3)-6$

$9=15-6$

$9=9$

Since both sides of function are equal, therefore, point (3,9) is the solution of our given function.

B. $(1,-1)$

$f(x) = 5x - 6$

$-1= 5(1)-6$

$-1= 5-6$

$-1=-1$

Since both sides of function are equal, therefore, point $(1,-1)$ is the solution of our given function.

C. $(5,19)$

$f(x) = 5x - 6$

$19= 5(5)-6$

$19= 25-6$

$19=19$

Since both sides of function are equal, therefore, point $(5,19)$ is the solution of our given function.

D. $(4,10)$

$f(x) = 5x - 6$

$10= 5(4)-6$

$10= 20-6$

$10\neq 14$

Since both sides of function are not equal, therefore, point $(4,10)$ is not a solution of our given function and option D is the correct choice.

7 0

4 years ago

What is the value of a in this linear system?

Sergio [31]

Answer:

Step-by-step explanation:

C

5 0

3 years ago

Which equation describes the relationship shown in the table?

Andrew [12]

Answer:

A

Step-by-step explanation:

i = items sold

p = profit

Based on the table, the profit is twice the number of items sold. Therefore the answer is A. Correct me if I'm wrong. I hope it helps.

7 0

3 years ago

Read 2 more answers