3 years ago

Help please asap will mark brainliest!!

Mathematics

1 answer:

Mumz [18]3 years ago

7 0

Answer:

m∠ABC = 24.5°

Step-by-step explanation:

m(arc)FG = 360 - 70 - 143 - 98 = 49°

m∠ABC = ½(m(arc)AC - m(arc)FG) = ½(98 - 49) = 24.5°

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2.6.5 A plant physiologist grew birch seedlings in the green-house and measured the ATP content of their roots. (See Example 1.1

Ilya [14]

Answer:

$(a)\ \bar x = 1.19$

$(b)\ \sigma_x = 0.18$

Step-by-step explanation:

Given

$n = 4$

$x: 1.45\ 1.19\ 1.05\ 1.07$

Solving (a): The mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{1.45 + 1.19 + 1.05 + 1.07}{4}$

$\bar x = \frac{4.76}{4}$

$\bar x = 1.19$

Solving (b): The standard deviation

This is calculated as:

$\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n - 1}}$

So, we have:

$\sigma_x = \sqrt{\frac{(1.45 -1.19)^2 + (1.19 -1.19)^2 + (1.05 -1.19)^2 + (1.07 -1.19)^2}{4 - 1}}$

$\sigma_x = \sqrt{\frac{(0.1016}{3}}$

$\sigma_x = \sqrt{0.033867}$

$\sigma_x = 0.18$

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3 years ago

The local video store charges a monthly membership fee of $ 5 and $ 2.25 per video

LiRa [457]

ok what the question

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4 years ago

What is the approximation value of square root 74 to the nearest 10 in words please and is square root 53, 7?

Svet_ta [14]

Answer:

10, 10, 0

Step-by-step explanation:

Square root 74 is 8.6 so to the nearest 10 is 10

Square root 53 is 7.2 so also 10

Square root 7 is 2.6 so 0

4 0

3 years ago

This equation shows how the cost of a photography session is related to its duration in hours.

joja [24]

Answer:

1 hour

Step-by-step explanation:

c= 20d

here, c=$20

$20=20d

or, d= 1 hr

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3 years ago

A package of cheese weighs 10 ounces. 200 grams is approximately 7 ounces.

Kruka [31]

Answer:

285.7 grams

Step-by-step explanation:

You will do this:

200/7 =28.57

28.57*10=285.71

3 0

3 years ago

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