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3 years ago

PLEASE HELP, WILL GIVE 20 POINTS.

Mathematics

1 answer:

OverLord2011 [107]3 years ago

6 0

Answer: $200cm^{2}$

Step-by-step explanation:

To double the dimensions, you must multiply both the length and width by 2, so instead of just $l*w=a$ , you have $2l*2w=b$ , which can be simplified even further to $2*2*l*w=b$

Now, multiply the 2s together to get 4, making the equation $4lw=b$ . Since $lw$ is $a$ , and $b$ is 4 times as much as $a$ , you just need to multiply the original area by 4 to get the new area.

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Is y=(x+3)^3 a function?

disa [49]

Answer: Yes

Step-by-step explanation:

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3 years ago

You spend $4.50 on 5 pounds of apples. What is the unit rate in dollars per pound?

vredina [299]

Answer:

$0.90 per pound.

Step-by-step explanation:

4.50:5

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3 years ago

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hich function has a range of {y|y ≤ 5}? f(x) = (x – 4)2 + 5 f(x) = –(x – 4)2 + 5 f(x) = (x – 5)2 + 4 f(x) = –(x – 5)2 + 4

Brums [2.3K]

Answer:

$f(x)=-(x-4)^2+5$

Step-by-step explanation:

The function $f(x)=-(x-4)^2+5$ has the vertex at $(4,5)$ .

Since $a=-1\:$ , the graph of the function is a maximum graph.

The highest y-value is the y-coordinate of the vertex which is 5.

Therefore the range is { $y|y\le 5$ }

Therefore the correct answer is B.

6 0

3 years ago

PLEASE HELP NOBODY WILL HELP ME I WILL GIVE BRAINLIEST

d1i1m1o1n [39]

Answer:

See below

Step-by-step explanation:

Let the number of Payday be p and Baby Ruth be b

Then sub of the candy bars:

p + b = 220

Payday candy bars worth ⇒ $2p
Baby Ruth candy bars worth ⇒ $3b
Total ⇒ $600

1. Required equations:

p + b = 220
2p + 3b = 600

2. Solving by substitution:

p = 220 - b, consider it in the second equation

2(220 - b) + 3b = 600
660 - 2b + 3b = 600
660 + b = 600
b = 660 - 600
b = 60

60 Baby Ruth candy bars sold

4 0

3 years ago

How can all the solutions to an equation in two variables be represented?

OLga [1]

How do linear, quadratic, and exponential functions compare?

Answer:

How can all the solutions to an equation in two variables be represented?

The solution to a system of linear equations in two variables is any ordered pair x,y which satisfies each equation independently. U can Graph, solutions are points at which the lines intersect.

How can all the solutions to an equation in two variables be represented?

you can solve it by Iterative method and Newton Raphson's method.

How are solutions to a system of nonlinear equations found?

Solve the linear equation for one variable.

Substitute the value of the variable into the nonlinear equation.

Solve the nonlinear equation for the variable.

Substitute the solution(s) into either equation to solve for the other variable.

How can solutions to a system of nonlinear equations be approximated? U can find the solutions to a system of nonlinear equations by finding the points of intersection. The points of intersection give us an x value and a y value. Using the example system of nonlinear equations, let's look at how u can find approximate solutions.

6 0

2 years ago

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