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3 years ago

I need help asap plzz

Mathematics

1 answer:

mamaluj [8]3 years ago

6 0

Answer:

x = 6

Step-by-step explanation:

If I'm wrong I will give you free 30 brainly points because I will be so embarrassed :| Just friend request me and I'll make one that says free 30 brain points and click it my guy then add answer.

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The lifetime of a certain brand of battery is normally distributed with a mean value of 8 hr and a standard deviation of 0.8 hr

AveGali [126]

Answer:

Step-by-step explanation: o847434y3u3u44y4u5u5u5uu6

6 0

3 years ago

I really need help asap!!

Firdavs [7]

Given:

A figure of a parallelogram.

The vertex angles are $(12b+8)^\circ,(5b+2)^\circ,2a^\circ$ .

To find:

The values of a and b.

Solution:

We know that the pairs of consecutive angles of a parallelogram are supplementary angles. It mean their sum is 180 degrees.

$(12b+8)^\circ+(5b+2)^\circ=180^\circ$ (Supplementary angles)

$(17b+10)^\circ=180^\circ$

$17b+10=180$

Subtract 10 from both sides.

$17b=180-10$

$17b=170$

Divide both sides by 17.

$b=\dfrac{170}{17}$

$b=10$

Now,

$(5b+2)^\circ=(5(10)+2)^\circ$

$(5b+2)^\circ=(50+2)^\circ$

$(5b+2)^\circ=52^\circ$

And,

$(5b+2)^\circ+2a^\circ=180^\circ$ (Supplementary angles)

$52^\circ+2a^\circ=180^\circ$

$2a^\circ=180^\circ-52^\circ$

$2a^\circ=128^\circ$

Divide both sides by 2.

$a^\circ=\dfrac{128^\circ}{2}$

$a^\circ=64^\circ$

$a=64$

Therefore, the value of a is 64 and the value of b is 10.

5 0

3 years ago

Solve for x.<br> 0 < 3x - 6 s 18<br> 0 2 x<0 or x >8<br> x<2 or x > 8

docker41 [41]

Answer:

Step-by-step explanation:

4 0

3 years ago

HELP ME I'M STUCK!!!! PLEASE AND THANK YOU!!!!

Darya [45]

Answer: 1/8

Step-by-step explanation: The sample space are all of the different outcomes an event can lead to. The H and T combinations at the bottom are all of the different outcomes. I think the probability of getting 3 tails for the coins (or TTT) is 1/8. This is because there are 24 total outcomes (HHH, HHT, HTH, HTT, THH, THT, TTH, TTT). There is 3/24 TTTs (also, 1/8 if you count the groups/simplify). Therefore, it is 1/8. Hope this helps!

3 0

3 years ago

Factor the quadratic expression. x2 + 16x + 48

Bingel [31]

I will do my best to explain this “ x method “ I use
Basically, two factors of the first and last number must multiply together to sum up to equal the middle number
1 X 12
1 4
(x+12) (x+4)
Hope this helps!

3 0

3 years ago

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