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2 years ago

A. y = - 1/4x +9

Mathematics

1 answer:

Vikentia [17]2 years ago

6 0

It's B= 1/4x+6 because I solve it

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Help me solve this paper mathematical

Murrr4er [49]

I wish i can help you

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3 years ago

The length of a rectangular flower bed is 2ft longer than the width. If the area is 6ft, then what are the exact length and widt

Marizza181 [45]

Answer:

Exact dimensions:

$width=-1+\sqrt{7}$

$length=-1+\sqrt{7}+2$

$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

Step-by-step explanation:

Let's assume width of rectangle is w ft

The length of a rectangular flower bed is 2ft longer than the width

so,

length =w+2

$L=w+2$

now, we can find area

$A=L\times W$

now, we can plug it

$A=(w+2)\times w$

$A=w^2+2w$

we are given area =6

so, we can set it equal

and then we can solve for w

$w^2+2w=6$

$w^2+2w-6=0$

we can use quadratic formula

$ax^2+bx+c=0$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

now, we can compare and find a,b and c

a=1 , b=2 , c=-6

$w=\frac{-2\pm \sqrt{2^2-4\cdot \:1\left(-6\right)}}{2\cdot \:1}$

$w=-1+\sqrt{7},\:w=-1-\sqrt{7}$

we know that dimension can never be negative

so, we will only consider positive value

Exact dimensions:

$width=-1+\sqrt{7}$

$length=-1+\sqrt{7}+2$

$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

7 0

3 years ago

An 18-foot board is leaning against a wall. It is set 6 feet from the base of the wall. How far up the wall does the board reach

pav-90 [236]

Answer: 19

Step-by-step explanation:

8 0

2 years ago

The population of a school and is increasing at a rate of 2%per year;6yearsPLEASE HElp <br> Thanks

Shkiper50 [21]

Answer:

It can be modeled with the equation $A=P(1.02)^6$ but needs a starting population number to finish.

Step-by-step explanation:

To find the population in a future year, use the formula:

$A = P (1+/-r)^t$

where A is the amount, p is the starting population, r is 2% or 0.02, and t is the number of years.

Since the population is increasing it is addition. Substitute r=0.02 and t=6. Without a starting population, we cannot find the population in 6 years.

$A = P (1+r)^t\\A=P(1+0.02)^6\\A=P(1.02)^6$

3 0

3 years ago

Negative 15 plus 6 equals 5 minus 32.

svetoff [14.1K]

Answer:

-15+6 = 5-32

Step-by-step explanation:

If you are asking for the expression of that, then the answer is:-15+6 = 5-32.

6 0

3 years ago

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