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2 years ago

Given x=7 y=3 and z=10, calculate the value of:5x =

Mathematics

2 answers:

bulgar [2K]2 years ago

8 0

The answer is 35 because it would be 5 times x which is 7

suter [353]2 years ago

7 0

Answer: 5x= 35

Step-by-step explanation:

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(a−2b)^3 when a=−4 and b=−12

erma4kov [3.2K]

Answer:

8,000

Step-by-step explanation:

You can simplify it to (-4+24)^3a

7 0

2 years ago

In the year 2019, Lee County used approximately 55 million gallons of water. Historical trends show that each year the water dem

Harlamova29_29 [7]

Answer:

Approximately 62 gallons of water will be used by Lee County by the year 2025.

Step-by-step explanation:

The amount, in millions gallons of water, spent by Lee County, in t years after 2019, is given by the following equation:

$P(t) = P(0)(1 + r)^{t}$

In which P(0) is the amount spent on 2019 and r is the increse rate, as a decimal.

In the year 2019, Lee County used approximately 55 million gallons of water.

This means that $P(0) = 55$

Historical trends show that each year the water demand is increasing by a rate of approximately 2.1%.

This means that $r = 0.021$

$P(t) = P(0)(1 + r)^{t}$

$P(t) = 55(1 + 0.021)^{t}$

$P(t) = 55(1.021)^{t}$

Approximately how many million gallons of water will be used by Lee County by the year 2025?

2025 is 2025 - 2019 = 6 years after 2019. So this is P(6).

$P(t) = 55(1.021)^{t}$

$P(6) = 55(1.021)^{6}$

$P(6) = 62.3$

Rounded to the nearest millions

Approximately 62 gallons of water will be used by Lee County by the year 2025.

3 0

3 years ago

The area of the rectangle shown is 13 ft2.<br> Find the length and the width of the rectangle.

const2013 [10]

Answer:

Step-by-step explanation:

13x2=26 you can also do 13+13=26 if easier

3 0

2 years ago

Read 2 more answers

Donde esta lache?????????????????????????/ danny duncken

lianna [129]

HUHHHHHHHHHHHHHHHHHHHHH

3 0

2 years ago

Find rules for quadratic functions with graphs meeting these conditions.

Elena L [17]

1.) (x - 4)(x + 1) = 0
x^2 + x - 4x - 4 = 0
y = x^2 - 3x - 4

2.) (x - 2)(x - 6) = 0
x^2 - 6x - 2x + 12 = 0
x^2 - 8x + 12 = 0
since the function has a maximum point the leading coefficient is negative.
Therefore, required equation is y = -3x^2 + 24x - 36

3.) a(x + 3)^2 = ax^2 + 6ax + 9a
since the y intercept is at y = 18 => 9a = 18 => a = 2
Therefore, required function is y = 2x^2 + 12x + 18

8 0

3 years ago

Given x=7 y=3 and z=10, calculate the value of:5x =​

Given x=7 y=3 and z=10, calculate the value of:5x =