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const2013 [10]
3 years ago
8

3. Solve for x. Round to the nearest tenth. 14 х 49°

Mathematics
1 answer:
Elis [28]3 years ago
4 0
So for this triangle you are going to use Cos, which is adjacent/hypotenuse.
In this case x is your hypotenuse.

So your equation is going to be Cos(49)= 14/x.
So in order to get x, you are going to have to multiply x by each side. So:

x • Cos(49)= 14/x • x.
Multiplying x and x is going to cancel each other out so your new equation is going to be:

xCos(49)=14.

Now we are going to divide each side by Cos(49). Dividing Cos(49) by itself, will cancel itself out, so then your new equation will be:

x = 14/Cos(49)

Now you are going to put that into your calculator and your answer will be

x = 9.18.

If i’m wrong please tell me and correct me.
Here is a photo of you don’t understand.

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stich3 [128]

Answer:

Yes, women better at multitasking than men.

Step-by-step explanation:

Given

n_1=120 --- Men

n_2=120 --- Women

\bar x_2 > \bar x_1 --- Women with greater average speed

Required

Does women better at multitasking?

When making comparison between two variables that are subjected to the same conditions;

If both variables have different mean values; the variable with the greater mean value performs better.

So, in this case:

\bar x_2 > \bar x_1 means that women perform better than men, at multitasking.

5 0
3 years ago
Manufacturers don’t like defective products because it can give their brands a bad reputation. However, no production line is pe
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Answer:

0.99804932311

Step-by-step explanation:

We solve this using binomial probability

Binomial probability formula

= nCx × p^x × q^n - x

= n!/(n - x)! x!

Where n = Number of trials = 25 samples

x = Number of successes = 23

p = probability of success = 99% = 0.99

q = probability of failure = 1 - p

= 1 - 0.99

= 0.01

Hence,

p(at least 23 are properly filled) = p(X ≥ x)

= [25!/(25 - 23)! × 23! × 0.99^23 × 0.01^25 - 23 ]+ [25!/(25 - 24)! × 24! × 0.99^24 × 0.01^25 - 24 ]+ [25!/(25 - 25)! × 23! × 0.99^25 × 0.01^25 - 25]

= [300 × 0.99 ^23 × 0.01^2] + [25 × 0.99^24 × 0.01^1] + [1 × 0.99^25 + 0.01^0]

= 0.0238084285 + 0.1964195352 + 0.7778213594

= 0.99804932311

3 0
3 years ago
Which equation could represent function R
IgorLugansk [536]
I think the answer would be B that could represent function R
8 0
3 years ago
Due tomorrow! Please
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3 years ago
If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?
gayaneshka [121]

Answer:

id say D

Step-by-step explanation:

Lemme know if you need anything !!

7 0
3 years ago
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