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2 years ago

PLZ HELP

Mathematics

1 answer:

Lelechka [254]2 years ago

7 0

Answer:

5 quartz would make the most sense, hope this helps

Step-by-step explanation:

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PLEASE HELP!!

PSYCHO15rus [73]

Answer:

The bird is approximately 9 ft high up in the tree

Explanation:

The required diagram is shown in the attached image

Note that the tree, the cat and the ground form a right-angled triangle

Therefore, we can apply special trigonometric functions

These functions are as follows:

$sin(\alpha)=\frac{opposite}{hypotenuse} \\ \\ cos(\alpha)=\frac{adjacent}{hypotenuse} \\ \\tan(\alpha)=\frac{opposite}{adjacent}$

Now, taking a look at our diagram, we can note the following:

α = 25°

The opposite side is the required height (x)

The adjacent side is the distance between the cat and the tree = 20 ft

Therefore, we can use the tan function

This is done as follows:

$tan(\alpha)=\frac{opposite}{adjacent}\\ \\ tan(25)=\frac{x}{20}\\ \\x=20tan(25) = 9. 32 ft$ which is 9 ft approximated to the nearest ft

Hope this helps :)

5 0

3 years ago

Tyra makes $21.40 per hour at her job for the first 40 hours and $32.10 for anything over 40 hours. if tyra typically works 45 h

Debora [2.8K]

She works for 40 hours, and then 5 hours.
So, for these first 40 hours, Tyra earns $21.40 per hour. We can find how much she earns in 40 hours:

21.40 x 40 = 856.
So, in the first 40 hours, she makes $856.

Now, for any number of hours Tayra works more that 40 hours, she will earn $32.10 each hour.

She works 5 hours over 40 hours, since it is 45 hours in total.
Hence, Tayra will earn $32.10 every hour for the 5 hours:

5 x 32.10 = 160.5.
Therefore, she will earn $160.50 for the 5 hours.

Now we have both of the earning amounts that make up how much she makes in the 45 hours. We can add them together

40 hours + 5 hours = 45 hours.
Substitute the amounts in the hours.

856 + 160.5 = 1016.5.

Thus, the answer is that Tyra will warn $1,016.50 in the total 45 hours.
Ergo, the correct answer is C.

Hope this helps, let me know if you need anything else! :)

7 0

3 years ago

Read 2 more answers

Jeff uses 3 fifth size strips to model 3/5 he wants to use tenth size strips to model an equivalent fraction how many tenth size

PilotLPTM [1.2K]

3/5 x2= 6/10

he needs 6 stirps
﴾͡๏̯͡๏﴿ O'RLY?

7 0

3 years ago

What is the value of x in the equation x + 10 = 13? O-3 03 0 13 O 23

gayaneshka [121]

Answer:

Step-by-step explanation:

x+10=13

x+10-10=13-10

Simplfiy

x=3

3 0

2 years ago

Read 2 more answers

PLEASE HELP!!! WILL GIVE BRAINLIEST AWARD FOR BEST EXPLAINED! PLEASE HELP

Arada [10]

Answer:

[1]

Given: $(5x^3 + 3x^2 - 7x + 10) - (3x^3 - x^2 + 4x - 1)$

Remove the parenthesis, we get;

$(5x^3 + 3x^2 - 7x + 10) - (3x^3-x^2+ 4x -1)$

$5x^3 + 3x^2 - 7x + 10- 3x^3 + x^2- 4x + 1$

Like terms are the those terms with same variable and powers.

Combine like terms;

$2x^3 + 4x^2 - 11x + 11$

To write this polynomial in standard form, you write starting with the term with the highest degree, or exponent(i.e $x^3$ ), and then in decreasing order .