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2 years ago

If A= 3x^2+5x-6 and B = -2x^2-6x+7 then A-B equals

Mathematics

1 answer:

Ber [7]2 years ago

5 0

Answer:

A-B=x^2-x+1

Step-by-step explanation:

A-B=3x^2+5x-6+(-2x^2-6x+7)

=3x^2+5x-6-2x^2-6x+7

=x^2-x+1

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Sally saved 65% of her pay check. If she made $500, how much did she save?

melisa1 [442]

Answer: 325 dollars

Step-by-step explanation:

In order to find out a percentage of somethin, you can simply multiply and divide

$500*65=32500$

32500÷100= 325

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3 years ago

If ABC ~ DEF what is the scale factor of abc to def

Yuri [45]

Answer:

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3 years ago

A golf course charges $18 to golf 18 holes and $7 for a cart for a no-member.

balandron [24]

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4 years ago

What sum of money amounts to rupees 545 4 at 8% BA in 30 months

Mars2501 [29]

Answer:

let sum of money be x

amount=rupees5454

rate=8%

time=30 months

convert month into year

30/12=5/2 years

Step-by-step explanation:

interest=p*t*r/100

=x*5*8/100*2

=40x/200

=x/5

so to find principal use formula

amount=principal +interest

5454=x+x/5

5454=5x+x/5

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4545=x

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Hope this helps u!!

5 0

3 years ago

Madeline is standing 2x−4 feet from the base of a tree. The height of the tree is 5x+6 feet. Find the equation that shows the st

klemol [59]

Answer:

Required equation is $\sqrt{(2x-4)^2+(5x+6)^2}$ .

Step-by-step explanation:

Given,

Height of the tree=5x+6

Distance from feet of the tree=2x-4

To find straight distance from feet of Madeline to top of the tree.

Let the tree as y-axis and distance from base along x-axis. Then the distence of straight line from foot of Madeline to top is become the hypotenuse of the triangle. Thus if we let,

Distance from feet of Madeline to top of tree= p, then, according to law of finding third side of a triangle we get,

$p^2=(\textit{distance from base})^2+(\textit{height of tree})^2$

$\therefore p=\sqrt{(2x-4)^2+(5x+6)^2}$

Hence the result.

5 0

3 years ago

If A= 3x^2+5x-6 and B = -2x^2-6x+7 then A-B equals ​

If A= 3x^2+5x-6 and B = -2x^2-6x+7 then A-B equals