What operations never change the solution set of an equation

Mathematics

1 answer:

kykrilka [37]3 years ago

4 0

Answer:

x values

Step-by-step explanation:

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Find the present value of the annuity.

shusha [124]

Pv=4,725×((1−(1+0.10÷2)^(−2
×15))÷(0.10÷2))=72,634.83

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3 years ago

The instructions for building a kite tell you to begin by cutting a strip of wood to 45 cm in length, but your ruler only measur

Phantasy [73]

If one inch = 2.54 centimeters, then 45 centimeters divided by 2.54 centimeters will give you the amount of inches the piece of wood needs to be.

45/2.54 = 17.72 ---- Rounded to the nearest quarter, would be 17.75 inches.

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3 years ago

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Jean’s salary last month was $3200. Because of worse beneficial result of her company, this month her salary decreased to $2720.

vesna_86 [32]

Answer:

15%.

Step-by-step explanation:

3200 x .15 = 480

3200 - 480 = 2720

Feel free to let me know if you need more help! :)

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3 years ago

A farmer grows corn, tomatoes, and sunflowers on a 320-acre farm. This year, the farmer wants to plant twice as many acres of to

svet-max [94.6K]

Set it up with variables; tomatoes=t, sunflowers=s, corn=c

320=t+s+c

This year;
t=2s
c=t+40

so, replace 2s for t; c=2s+40

now we can put those factors in for 320=t+c+s

320= 2s+2s+40+s
(SIMPLIFY)---> 320=5s+40----> 5s+280----> s=56

now incorporate the s value into the other equations.

c=2s+40----> c=56(2)=40 ----> c=152
t=2s -----> t=2(56) ----> t=112

TOMATOES= 112 acres
CORN= 152 acres
SUNFLOWERS= 56 acres

To check your work: 320=t+s+c ----> 320=112+156+56

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Classify the real number. <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B15%7D%20" id="TexFormula1" title=" \sqrt{15} " alt="

lilavasa [31]

Answer:

<h2>Irrational </h2>

Step-by-step explanation:

Firstly, 

According to rational and irrational,

$\sqrt{15} \: is \: irrational$