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diamong [38]
3 years ago
5

Please help anyone know how to do this.

Mathematics
2 answers:
Mademuasel [1]3 years ago
7 0

Answer:

Pythagoras theorem states a^2 + b^2 = c^2  

(The two smallest sides squared will make the hypotenuse squared)

a, b and c are sides of triangle

Answer is option 3

Step-by-step explanation:

dexar [7]3 years ago
6 0

sides of right angle triangle follows Pythagoras theorem

a^2 + b^2 = c^2

where a, b and c are sides of triangle

if you check, option 3 follow this. so answer is option 3

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Do any of y'all know how to do this I'm so confused and I need help ​plz
nekit [7.7K]

Answer:

the 2nd

Step-by-step explanation:

8 0
3 years ago
The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment
9966 [12]

Answer:

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.

Population mean, μ =  140 mm

Sample mean, \bar{x} =  139 mm

Sample size, n = 51

Sample standard deviation, s = 5 mm

Thus, we can design the null hypothesis and alternate hypothesis as

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.

Thus, the correct answer is

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

3 0
3 years ago
Help! If you know this can you tell me how to do it?
aleksandr82 [10.1K]

Answer:

c

Step-by-step explanation:

Here's how this works:

Get everything together into one fraction by finding the LCD and doing the math.  The LCD is sin(x) cos(x).  Multiplying that in to each term looks like this:

[sin(x)cos(x)]\frac{sin(x)}{cos(x)}+[sin(x)cos(x)]\frac{cos(x)}{sin(x)} =?

In the first term, the cos(x)'s cancel out, and in the second term the sin(x)'s cancel out, leaving:

\frac{sin^2(x)}{sin(x)cos(x)}+\frac{cos^2(x)}{sin(x)cos(x)}=?

Put everything over the common denominator now:

\frac{sin^2(x)+cos^2(x)}{sin(x)cos(x)}=?

Since sin^2(x)+cos^2(x)=1, we will make that substitution:

\frac{1}{sin(x)cos(x)}

We could separate that fraction into 2:

\frac{1}{sin(x)}×\frac{1}{cos(x)}

\frac{1}{sin(x)}=csc(x)  and  \frac{1}{cos(x)}=sec(x)

Therefore, the simplification is

sec(x)csc(x)

5 0
3 years ago
What is the value of x in this equation?<br> 8x + 40 = 180
antiseptic1488 [7]

Answer:

17.5  

Step-by-step explanation:

180 = 40+ 8x

140 = 8x

17.5  = x

6 0
3 years ago
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Pierre's company bought cement for $5.25 per bag . If they sold the cement for $7.35 per bag. What was the markup rate ?
qwelly [4]
2.15$ would be the mark up rate.
5 0
3 years ago
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