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bagirrra123 [75]
3 years ago
7

If x=4 and y=5 work out 5xy+x squared

Mathematics
1 answer:
Verdich [7]3 years ago
5 0
5xy+x^2 \hbox{ for } x=4, \ y=5 \\ \\
5 \times 4 \times 5 + 4^2=100+16=\boxed{116}
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The table shows the marginal relative frequencies of surveyed drivers’ plans for their next vehicle.
Maslowich

:Answer:

1.) The majority of drivers, about 62 percent, plan to buy a used vehicle next.

3.) Ten percent of drivers lease their current vehicle.

5.) The least percentage of people will lease their next car.

Correct on EDGE2021

3 0
3 years ago
You have 800 feet of fencing and you want to make two fenced in enclosures by splitting one enclosure in half. What are the larg
katovenus [111]
Problema Solution

You have 800 feet of fencing and you want to make two fenced in enclosures by splitting one enclosure in half. What are the largest dimensions of this enclosure that you could build?

Answer provided by our tutors

Make a drawing and denote:


x = half of the length of the enclosure


2x = the length of the enclosure


y = the width of the enclosure


P = 800 ft the perimeter


The perimeter of the two enclosures can be expressed P = 4x + 2y thus


4x + 3y = 800


Solving for y:

........

click here to see all the equation solution steps

........

y = 800/3 - 4x/3


The area of the two enclosure is A = 2xy.


Substituting y = 800/3 - 4x/3 in A = 2xy we get


A = 2x(800/3 - 4x/3)


A =1600x/3 - 8x^2/3


We need to find the x for which the parabolic function A = (- 8/3)x^2 + (1600/3)x has maximum: 


x max = -b/2a, a = (-8/3), b = 1600/3


x max = (-1600/3)/(2*(-8/3))


x max = 100 ft


y = 800/3 - 4*100/3


y = 133.33 ft


2x = 2*100


2x = 200 ft

3 0
3 years ago
Domain and Range for this equation? F(x)= 3x^7+0x^6-0x^5-2x^4-3x^3-2x^2-x^1+x^0
sp2606 [1]
The domain is equal all real numbers
D=\mathbb{R}

The degrees of the polynomial is odd (3x^7, 7 is odd), therefore the range is equal all real numbers

R=\mathbb{R}
8 0
3 years ago
What's the answer? Can't figure it out
soldier1979 [14.2K]
9x⁹ - 90x⁸ - 351x⁷

What do each of these numbers have in common?

They ALL have 9x⁷ in them!

So, divide each one of these by 9x⁷

9x⁹ ÷ 9x⁷ = 9x²

-90x⁸ ÷ 9x⁷ = -9x

-351x⁷ ÷ 9x⁷ = -39

So, factorized completely, it is :

9x² - 9x - 39

~Hope I helped!~


4 0
3 years ago
A building with a height of 14 m casts a shadow that is 16 m long while a taller building casts a 24 m long shadow. What is the
uranmaximum [27]
26 i am not really sure cuz what i did was 16-14= 2 
2+24= 26

5 0
3 years ago
Read 2 more answers
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