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bogdanovich [222]

2 years ago

9

The area of the square is a function of its perimeter. Graph the function on a second sheet of grid paper. Explain whether the f

unction is linear and if the graph is increasing or decreasing.
How am I supposed to do this problem?

1 answer:

kolbaska11 [484]2 years ago

4 0

The answer is not a linear equation and the graph is decreasing. sorry i had made a mistake the first time

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Two brothers have ages that are consecutive odd integers. The product of their ages is 38 less than the older brother's age squa

Lemur [1.5K]

answer = the elder bother is 17 and the younger one is 15

constructive odd integers= 15 and 17

17×15= 255

255+38 = 293

Square root of 293 = 17

5 0

3 years ago

Which statement is necessarily true if || ?

sp2606 [1]

Can you give the choices please

7 0

2 years ago

Marco is 8 years younger than his brother Paolo. If their product of their ages is 105, how old is Marco? plz help

Nina [5.8K]

Answer:

Marco's age is 7 years old

Step-by-step explanation:

Let

x ----> Marco's age

y ----> Paolo's age

we know that

$x=y-8$ ----> $y=x+8$ ----> equation A

$xy=105$ ----> equation B

substitute equation A in equation B

$x(x+8)=105$

$x^2+8x-105=0$

Solve the quadratic equation

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^2+8x-105=0$

so

$a=1\\b=8\\c=-105$

substitute in the formula

$x=\frac{-8(+/-)\sqrt{8^{2}-4(1)(-105)}} {2(1)}$

$x=\frac{-8(+/-)\sqrt{484}} {2}$

$x=\frac{-8(+/-)22} {2}$

$x=\frac{-8(+)22} {2}=7$

$x=\frac{-8(-)22} {2}=-15$

Remember that the solution cannot be a negative number

so

The solution is x=7

therefore

Marco's age is 7 years old

4 0

3 years ago

Need help 21,22,23,24,25 pleasee help

zimovet [89]

Answer:

21. C

22. D I got 263.89

23. I'm not sure about this one

24. C

25. D

Step-by-step explanation:

I hope the ones i answered were correct if not i am sorry

3 0

2 years ago

PLEASE HELP,, MARKING BRAINLIEST!!!<br><br> Solve for x

Trava [24]

9514 1404 393

Answer:

x = 10

Step-by-step explanation:

The marked sides are proportional, so we have ...

x/8 = (x +5)/12

3x = 2(x +5) . . . . . multiply by 24 to clear fractions

3x = 2x + 10 . . . . . eliminate parentheses

x = 10 . . . . . . . . . . subtract 2x

_____

<em>Alternate solution</em>

We observe that the difference between the upper segment lengths is ...

(x +5) -(x) = 5

and the difference between the lower segment lengths is ...

12 -8 = 4

This means the upper segment lengths are 5/4 times as long as the lower segments. Then ...

x = (5/4)(8) = 10

4 0

2 years ago