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sveticcg [70]
3 years ago
13

How do I do this? Please provide steps.

Mathematics
1 answer:
matrenka [14]3 years ago
6 0

Answer:

3/5

Step-by-step explanation:

Soh Cah Toa

In some trigonometry classes, this acronym is very important to solving questions like this.

Why?

It tells us the right triangle-definition of these trigonometry functions.

We have that cosine of an angle is equal to tge side that is adjacent to it over the hypotenuse.

So here we are asked to find cos(B).

Lets look at triangle respect to the angle B

The measurement of the side that is opposite is 64.

The measurement of the side that is adjacent is 48.

The measurement of the hypotenuse is 80.

So cos(B)=48/80.

Let's reduce. 48 and 80 have a common factor of 8 so divide numerator and dexter by 8. This gives us:

cos(B)=6/10.

One more step in reducing. Both factors are even so cos(B)=3/5.

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Greg has to carry 191 apples from a farm to the market. how many baskets will need, given that each basket can hold 42 apples?
soldi70 [24.7K]
191 / 42 = 4.5.....so Greg is gonna need 5 baskets....but the last basket is only gonna be half full.
8 0
3 years ago
Write an expression that represents the height of a tree that begins at 10 feet and increases by 3 feet per year. Let t represen
mestny [16]
  • t represents number of years
  • initial height=10ft
  • Increases per year=3ft

Expression:-

\\ \sf\longmapsto 10+3t

3 0
3 years ago
Will mark the brainliest
Sati [7]

Answer:

B.   60x^8

Step-by-step explanation:

4x^2\sqrt{5x^4} \cdot 3\sqrt{5x^8} =

= 4x^2 \times 3 \sqrt{5x^4 \times 5x^8}

= 12x^2 \sqrt{25x^{4+8}}

= 12x^2 \sqrt{25} \sqrt{x^{12}}

= 12x^2 \times 5 \times x^6

= 60x^8

6 0
2 years ago
The sum of 2 of the exterior angles of a triangle is 222 degrees. What is the measure of the third exterior angle?
zysi [14]

Answer:

Exterior angles always add up to 360 degrees, therfore 360 - 222 = 138

Step-by-step explanation:

360 - 222 = 138

the answer to your question is 138degrees.

For any shape the exterior angles will always add up to 260 degrees.

Hope this helps in the future!

5 0
3 years ago
Read 2 more answers
A researcher studying reaction time of drivers states that, "A 95% confidence interval for the mean time it takes for a driver t
torisob [31]

Answer:

The answer to the question is

Point Estimate = 1.5

Margin of error = 0.3

Step-by-step explanation:

A point estimate as opposed to an interval estimate, presented in the question which consist of a range of values, is a specific point or single value to describe a given set of collected data. An example of a point estimate is the mean of a range of values hence the point estimate is given as

(1.2 + 1.8) ÷ 2 which is equal to 1.5

The margin of error is used to describe the required allowance in terms of statistical points or percentage points by which a given set of result could vary from the actual sample. It represents the expected error between the actual population and the survey result

In this case the margin of error from the mean  is

1.5 - 1.2 = 0.3

Margin of error formula is z ×σ/√(n)

where z = z-score

σ = standard deviation

n = number of sampled data

4 0
3 years ago
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