Ask question

Ask question

All categories

LuckyWell [14K]

2 years ago

5

Jim bought 4 pairs of pants for $30, 2pairs of t shirts for $15, 3 pairs of shorts for $20 what is an expression that can be use

d to find the total amount Jim spent

1 answer:

Elanso [62]2 years ago

5 0

Answer:

$30+$15+$20

Step-by-step explanation:

You might be interested in

Leah's parents are planning to give her a gift and want to wrap it first. The gift is in a rectangular box with a height of 3 in

jekas [21]

128 square inches of wrapping paper, since the width would be the Z Axis, That would make a Square 3X4= 12, 12X2= 24. 3X7= 21X4= 104, 104+24=128? That's what I figured. Can you send me a photo of the problem?

8 0

3 years ago

Please help asap 50 pts

Alexxx [7]

A. The smaller the number, the wider the graph. That equation had the smallest number, so therefore it will produce the widest graph.

6 0

3 years ago

Read 2 more answers

Explain why an equation is extraneous. Explain why an equation is non extraneous.

TEA [102]

Answer:

I hope it's helpful.

Step-by-step explanation:

In mathematics, an extraneous solution (or spurious solution) is a solution, such as that to an equation, that emerges from the process of solving the problem but is not a valid solution to the problem.

5 0

2 years ago

Convert the Cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation.

SashulF [63]

<u>ANSWER</u>

${r}^{2} = 4 \cos2\theta$

<u>EXPLANATION</u>

The Cartesian equation is

${( {x}^{2} + {y}^{2} )}^{2} = 4( {x}^{2} - {y}^{2} )$

We substitute

$x = r \cos( \theta)$

$y = r \sin( \theta)$

and

${x}^{2} + {y}^{2} = {r}^{2}$

This implies that

${( {r}^{2} )}^{2} = 4(( { r \cos\theta) }^{2} - {(r \sin\theta) }^{2} )$

Let us evaluate the exponents to get:

${r}^{4} = 4({ {r}^{2} \cos^{2}\theta } - {r}^{2} \sin^{2}\theta)$

Factor the RHS to get:

${r}^{4} = 4{r}^{2} ({ \cos^{2}\theta } - \sin^{2}\theta)$

Divide through by r²

${r}^{2} = 4 ({ \cos^{2}\theta } - \sin^{2}\theta)$

Apply the double angle identity

$\cos^{2}\theta -\sin^{2}\theta= \cos(2 \theta)$

The polar equation then becomes:

${r}^{2} = 4 \cos2\theta$

7 0

3 years ago

Susan wants to divide 2 hours of computer time equally among 10 students. What fraction of an hour of computer time will each st

Andreas93 [3]

2 hours of computer time divide by 10 students:

2/10 = 1/5

7 0

2 years ago