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3 years ago

Please help- ill mark brainlyest, for whoever gets it right and whoever is first

Mathematics

1 answer:

choli [55]3 years ago

6 0

we know there are 9 dashes between 0 and 0.5. meaning each place represents 0.05 apart.

0_0.05_0.10_0.15_0.20_0.25_0.30_0.35_0.40_0.45_0.5

k is between 0.10 and 0.15

L is between 0.15 and 0.20

M is between 0.30 and 0.35

N is between 0.40 and 0.45

1/3 as a decimal is normally .3333 repeating

meaning M is the best answer

c. M

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A brick has a mass of 2,000 grams. What is the mass of the brick in kilograms?

Mademuasel [1]

The answer is "a" because 1000 grams go into every kilogram, meaning that to convert grams into kilograms you would divide by 1000. In this case, that would result in an answer of 2 kg.

I hope this helps!

5 0

3 years ago

When you flip a biased coin the probability of getting a tail is 0.6. How many times would you expect to get tails if you flip t

laiz [17]

Answer: I believe it’s 192 times

Step-by-step explanation:

You multiply 0.6 by 320, giving you 192

4 0

3 years ago

Solve the equation x−62=7

mel-nik [20]

Answer:

x = 69

hope this helped you

8 0

3 years ago

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Mean absolute deviation of 75, 89, 145, 85, 80, 92, 104, 90, 100?

Mama L [17]

First, compute the mean: $m=\frac{75+89+145+85+80+92+104+90+100}9=\frac{860}9=95.555$

Next compute the absolute deviations for each datapoint:
|75-95.555|=20.555
|89-95.555|=6.555
|145-95.555|=49.445
|85-95.555|=10.555
|80-95.555|=15.555
|92-95.555|=3.555
|104-95.555|=8.445
|90-95.555|=5.555
|100-95.555|=4.445

Next we'll take the mean of these deviations: $\frac{20.555+6.555+49.445+10.555+15.555+3.555+8.445+5.555+4.445}9=\frac{124.665}9=13.8517$

The mean absolute deviation of your data is 13.8517

7 0

3 years ago

Anyone that can help me with this please?Not soo good at math.

kakasveta [241]

As it is right angled , we can use pythagoras theorem.

Using the therorem :

(x+2)² + (4x+4)² = (5x)²

x² + 4x + 4 + 16x² + 32x + 16 = 25x²

25x² - 17x² - 36x - 20 = 0

8x² - 36x - 20 = 0

2x² - 9x - 5 = 0

2x² -10x + x - 5 =0

2x(x-5) + 1(x-5) =0

(x-5)(2x+1) = 0

x = 5 or x = -1/2

x cannot be -1/2 as it would make hypotenuse negative.

So x = 5

Sides are 7 m, 24 m , 25 m

The area = 1/2 × base × height

Area = 1/2 × 24 × 7 = 84 m²

5 0

3 years ago

Read 2 more answers