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3 years ago

Help please!

Mathematics

1 answer:

Akimi4 [234]3 years ago

5 0

Answer:

I think it's the 3rd choice

Step-by-step explanation:

$\sqrt{81} = 9$

$\sqrt{88} = 9.38083...$

$\sqrt{100} = 10$

I think it is the third choice because it is between the numbers 9 and 10.

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I need help with this problem ASAP!

Karo-lina-s [1.5K]

Form a right angle triangle joining both given points to the origin, we get:

Perpendicular = 2 ( distance is always positive)

Base = 4 ( same logic)

Applying Pythagorus theorem

Hypotenuse = root of ( perpendicular squared + base squared)

Hypotenuse = root of 20 = 2 * root 5

Using x instead of theta

Sin x = perpendicular/hypotenuse

Cos x = base/hypotenuse

Sin x = -1/ root 5

Cos x = -2/ root 5

High probability of this answer being wrong.

Double check recommended.

4 0

3 years ago

Which one pls HELP PLSSSS

Dafna11 [192]

Answer:

Its the first one

Step-by-step explanation:

5(x+y)

-8x

4 0

3 years ago

Read 2 more answers

Please help! I will mark you as brainliest!

ludmilkaskok [199]

a) 3 goals

The median is the middle number of a data set. The best way to find the median is to list out all of the goals (and their frequencies!) and cross off numbers from the outside in until we find the median, or middle number.

0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4

1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4

1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4

1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3

1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3

2, 2, 2, 2, 3, 3, 3, 3, 3, 3

2, 2, 3, 3, 3, 3

3, 3

The median is 3 goals.

b) 2.33 goals

To find the mean, we add up all of our listed numbers below and divide by the total number of terms we added together.

0(2) + 1(8) + 2(4) + 3(10) + 4(6) = 70

total number of terms = 2 + 8 + 4 + 10 + 6 = 30

70 / 30 = 2.33

The mean number of goals conceded was approximately 2.33.

Hope this helps! :)

4 0

4 years ago

Help please! I’m really confused

mylen [45]

I wpuld say B...because that can be the one Delta planet

6 0

4 years ago

In regional spelling bee, the 8 finalists consist of 3 boys and 5 girls. Find the number of sample point the sample space S for

Minchanka [31]

Answer:

i) There are 40320 possible orders

ii) There are 336 possible orders for the first 3 positions.

Step-by-step explanation:

Given: The number of finalists = 8

The number of boys = 3

The number of girls = 5

To find the number of sample point the sample space S for the number of possible orders, we need to find factorial of 8!

The number of possible orders = 8!

= 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8

= 40320

ii) From all 8 finalist, we need to choose first 3 position. Here the order is important. So we use permutation.

nPr = $\frac{n!}{(n - r)!}$

Here n = 8 and r = 3

Plug in n =8 and r = 3 in the above formula, we get

8P3 = $\frac{8!}{(8 - 3)!}$

= $\frac{8!}{5!} \\= \frac{1.2.3.4.5.6.7.8}{1.2.3.4.5}$

= 6.7.8

= 336

So there are 336 possible orders for the first 3 positions.

3 0

3 years ago