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3 years ago

Can someone please explain how to do this?

Mathematics

1 answer:

vovikov84 [41]3 years ago

6 0

Answer:

14)

tan θ = BC/AC = 9/13
θ = arctan (9/13)
θ = 34.7°

15)

cos 45° = 14/x
x = 14 / cos 45°
x = 19.8

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Work out the area of this circle

Svetach [21]

Answer:

A = 50.3 cm²

Step-by-step explanation:

Area of a circle = $\pi r^2$

Where r = 4 cm

A = π(4)²

A = 16(3.14)

A = 50.3 cm²

5 0

3 years ago

Question 37 (1 point)

o-na [289]

Answer:

The probability is:

$P =\frac{1}{16}$

Step-by-step explanation:

Keep in mind that the probability of getting a head is always the same for each

$p = 0.5$

Therefore the probability of not having a head is:

$q = 1-p = 0.5\\q = 0.5$

So if we throw the coin 4 times the probability P of not getting any head is:

$P = q * q * q * q\\\\P = q ^ 4\\\\P = 0.5 ^ 4\\\\$

$P =\frac{1}{16}$

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3 years ago

Read 2 more answers

PLEEEEEAAAAAASEEEEE HELLLPPPPPP!!! 20 POINTS!!!! list question number then answer

KiRa [710]

A is the correct answer I hope that helps :)

7 0

3 years ago

Complete the table and then graph the function. y = x + 1 look at photo

JulsSmile [24]

Since y=x+1 you get your first x value which is 2 and add one which is 3. Your first coordinate is (2,3) now the second one is 5 so 5+1=6 meaning your coordinate is (5,6) and so on a so forth so technically just add one to the x able and use your x value and the new value you just solved for to create the new coordinate to graph

7 0

3 years ago

dusya [7]

Step-by-step explanation:

Quotient rule,

$a {}^{n} \div a {}^{m} = a {}^{n - m}$

Do this,

a^(n-3)=a^9

Since the exponents have to be the same, this turned into a simple one step equation:

n-3=9

+3 +3

**n = 12, so the final answer is 12.

7 0

2 years ago

Can someone please explain how to do this? ​

Can someone please explain how to do this?