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3 years ago

Which of the following is figure are complementary

Mathematics

2 answers:

Murrr4er [49]3 years ago

7 0

Options 1, 2, and 3 (:

Alja [10]3 years ago

6 0

1, 2, and 3 are the answer

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Write the following phrase as an expression.<br> half of n

PtichkaEL [24]

Translating the half to symbols would be 1/2. Therefore, your answer is 1/2(n)

Hope this helps!

3 0

3 years ago

Read 2 more answers

If the mean score on a stress test is 5, the standard deviation is 2, and the distribution is normal, what would be the mean val

expeople1 [14]

Answer: 0

Step-by-step explanation:

Given that :

Mean score on test = 5

Standard deviation on test = 2

Distribution = normal

The mean value when Converted to a z - distribution :

Zscore = (x - mean) / standard deviation.

Hence z score for the mean score will be :

X = mean score

Zscore = ( 5 - 5) / 2

Zscore = 0 / 2

Zscore = 0

Mean value when Converted to a z distribution will be 0

5 0

3 years ago

Let a be the vector of length 125 that when drawn in standard position makes a 144° angle with the positive x-axis. Let b be the

umka2103 [35]

Answer:

The length is 90.033 and the angle that v makes with the positive x-axis is 153.339°

Step-by-step explanation:

Firstly we will have to convert our given vectors to their rectangular Cartesian vector form as follow,

$a=125(icos(144)+jsin(144))=-101.127i+73.473j\\b=39(icos(302)+jsin(302))=20.667i-33.074j$

Now that we have these, we can add them to obtain v as follows,

$v=a+b\\v=-80.46i+40.399j$

Now that we have the Cartesian vector form we can calculate its length and its direction with respect to the positive x-axis as follows(In fact we usually refer the angles from the positive x-axis),

$|v|=\sqrt{80.46^{2}+40.399^{2}}=90.033\\ angle(v)=tan^{-1}(40.399/(-80.46))=153.339$

So the length of the vector is 90.033 and the angle it makes with the positive x-axis is 153.339°.

6 0

3 years ago

(x2+x)(x2-2x-3) is equal to?

PtichkaEL [24]

Answer:

x^4-x^3-5x^2-3x

Step-by-step explanation

Use the FOIL Method or factor.

3 0

3 years ago

A car is traveling at a speed of 108 kilometers per hour. What is the cars speed in kilometers per minute? How many kilometers w

cluponka [151]

The distance travelled by the car will be 3.6km in 2 minutes.

<u>Explanation:</u>

Given:

Speed, s = 108 km/hr

s in km/min = ?

1 hr = 60 min

So,

108 km/hr = $\frac{108}{60} km/min$

= 1.8 km/min

time, t = 2 min

Distance, d = ?

We know:

distance = speed X time

$d = 1.8 X 2\\\\d = 3.6km$

Therefore, the distance travelled by the car will be 3.6km in 2 minutes.

6 0

3 years ago

Read 2 more answers

Which of the following is figure are complementary ​

Which of the following is figure are complementary