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3 years ago

What is additive inverse of 1/2?

Mathematics

1 answer:

Serjik [45]3 years ago

7 0

Hello from MrBillDoesMath!

Answer:

- (1/2)

Discussion:

Let the "additive inverse" be x. By definition of additive inverse, x,

x + (1/2) = 0.

Subtract (1/2) from both sides to get

x + (1/2) - (1/2) = 0 - (1/2) =>

x + 0 = - (1/2) =>

x = - (1/2)

Thank you,

MrB

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40 is 80% of what number?

agasfer [191]

Answer:

Step-by-step explanation:

.80n = 40

n = 40 divided by .80

40/8/10 = 400 / 80 = 50

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- I.A. -

6 0

3 years ago

A teacher shares pencils among his three students Anne, Lucy and John. Anne gets 5 times as many pencils as Lucy, and Lucy gets

Anna [14]

Answer:

step back u idiot

Step-by-step explanation:

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3 years ago

ONLY SERIOUS ANSWERS!!!! 25 POINTS

AveGali [126]

Answer:

FD≈25.94.. rounded = 26

Step-by-step explanation:

FD²=12²+(4x+11)²

FD²=144+16x²+88x+121

FD²=265+16x²+88x

also

FD²=12²+(13x-16)²

FD²=144+169x²-416x+256

FD²=400+169x²-416x

thus

265+16x²+88x = 400+169x²-416x

16x²-169x²+88x+416x+265-400 = 0

-153x²+504x-135 = 0

we will solve this quadratic equation by suing the quadratic formula to find x

x=(-504±sqrt(504²-4(-153)(-135)))/2(-153)

x=(-504± $\sqrt{504^{2}-4(-153)(-135) }$ )/2(-153)

x=(-504± $\sqrt{254016-82620 }$ )/-306

x=(-504± $\sqrt{171396}$ )/-306

x=(-504±414)/-306

x=(-504+414)/-306 and x=(-504-414)/-306

x=-90/-306 and x=-918/-306

x= 5/17 , 3

substituting x by the roots we found

check for 5/17:

4x+11 = 4×(5/17)+11 = (20/17)+11 = (20+187)/17 = 207/17 ≈ 12.17..

13x-16 = 13×(5/17)-16 = (65/17)-16 = (65-272)/17 = -207/17 ≈ -12.17..

check for 3:

4x+11 = 4×3+11 = 12+11 = 23

13x-16 = 13×3-16 = 23

thus 3 is the right root

therfore

ED=23 and CD=23

FD²=FE²+ED² or FD²=FC²+CD²

FD²=12²+23²

FD²=144+529

FD²=673

FD=√673

FD≈25.94.. rounded = 26

5 0

3 years ago

Read 2 more answers

Use synthetic division to solve (4x3-3x2+5x+6)/ (x+6). What is the quotient?

makkiz [27]

Your answer in photo↑↑↑

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4 years ago

Solve the equation 4(3y-1)-3(2y)=6

olga nikolaevna [1]

Answer:

$4(3y - 1) - 3(2y) = 6$

Remove backets

$12y - 4 - 6y = 6$

Group and Evaluate like terms

$12y - 6y = 6 + 4$

$6y = 10$

$y = 10 \div 6$

$y = 1.67$

$y = \frac{5}{3}$

6 0

3 years ago