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3 years ago

PLEASE HELP.

Mathematics

1 answer:

pentagon [3]3 years ago

3 0

Let x represent the number of shirts. Let y represent the number of pens.

If shirts are on sale for $11.99 each, then x shirts cost $11.99x.

If pants are on sale for $12.99 each, then y pants cost $12.99y.

The total cost is $(11.99x+12.99y).

Sarah can spend up to $65. Then an inequality that represents this situation is

11.99x+12.99y≤65 (this inequality holds when Sarah can spend $65 too)

11.99x+12.99y<65 (this inequality holds when Sarah can spend less than $65).

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Factor by using the GCF.

Lady_Fox [76]

Both terms have a 2x^4 in common. When this GCF is factored out you get 2x^4(x^2 - 6).

Answer is C

5 0

3 years ago

Consider the function f(x)=15x^2+60x-19 <br> Name the vertex for the function

Assoli18 [71]

The vertex for this function would be (-2,-79)

5 0

2 years ago

Read 2 more answers

While waiting for a bus, Todd decided to play with consecutive numbers (whole numbers that increase in order without skipping, s

Lesechka [4]

Answer:

A: 8+9+10=27

9+10+11=30

10+11+12=13

B: 19+20+21

C: There isn't any.

Step-by-step explanation:

It just is lol.

4 0

3 years ago

Find a vector function, r(t), that represents the curve of intersection of the two surfaces. the paraboloid z = 9x2 y2 and the p

dolphi86 [110]

The vector function is, r(t) = $\bold{ < t,2t^2,9t^2+4t^4 > }$

Given two surfaces for which the vector function corresponding to the intersection of the two need to be found.

First surface is the paraboloid, $z=9x^2+y^2$

Second equation is of the parabolic cylinder, $y=2x^2$

Now to find the intersection of these surfaces, we change these equations into its parametrical representations.

Let x = t

Then, from the equation of parabolic cylinder, $y=2t^2$ .

Now substituting x and y into the equation of the paraboloid, we get,

$z=9t^2+(2t^2)^2 = 9t^2+4t^4$

Now the vector function, r(t) = <x, y, z>

So r(t) = $\bold{ < t,2t^2,9t^2+4t^4 > }$

Learn more about vector functions at brainly.com/question/28479805

#SPJ4

7 0

2 years ago

3. 152.64 + 123 +0.024

AnnZ [28]

Answer:

i got 275.664

Step-by-step explanation:

8 0

3 years ago