1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin2010 [14]
3 years ago
12

HELP WILL GIVE BRAINLIEST FOR ANSWER QUICKLY PLEASE HELP

Mathematics
1 answer:
Helen [10]3 years ago
5 0

Answer:

We have sinθ = 12/13

The  method here is to figure out the value of θ

Using a calculator sin^(-1)(12/13) =67.38°

67.38° is in quadrant 1  so we must substract 67.38° from 180° wich is π

  • 180-67.38= 112.61° ⇒ θ= 112.61°

Now time to calculate cos2θ and cosθ using a calculator

  • cosθ = -5/13
  • cos2θ =  -0.7

The values we got make sense since θ is in quadrant 2 and 2θ in quadrant 3

You might be interested in
PLEASE HELP
Crank

Answer:

Listeriosis is an infection caused by the bacteria Listeria monocytogenes. People become infected by eating foods contaminated with the bacteria. Listeria may infect many different sites in the body, such as the brain, spinal cord membranes, or the bloodstream

Step-by-step explanation:

People with invasive listeriosis usually report symptoms starting 1 to 4 weeks after eating food contaminated with Listeria

5 0
3 years ago
Read 2 more answers
What is the value of 2 3/4 ➗ 3/4​
Ivan

Answer:

3 2/3 is the answer

Step-by-step explanation:

Conversion a mixed number 2 3/

4

to a improper fraction: 2 3/4 = 2 3/

4

= 2 · 4 + 3/

4

= 8 + 3/

4

= 11/

4

To find new numerator:

a) Multiply the whole number 2 by the denominator 4. Whole number 2 equally 2 * 4/

4

= 8/

4

b) Add the answer from previous step 8 to the numerator 3. New numerator is 8 + 3 = 11

c) Write a previous answer (new numerator 11) over the denominator 4.

Two and three quarters is eleven quarters

Divide: 11/

4

: 3/

4

= 11/

4

· 4/

3

= 11 · 4/

4 · 3

= 44/

12

= 4 · 11 /

4 · 3

= 11/

3

Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 3/

4

is 4/

3

) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step , cancel by a common factor of 4 gives 11/

3

.

so you simplify to get 3 2/3

8 0
3 years ago
I NEED THESE DONE ASAP I DONT KNOW WHAT TO DO
zavuch27 [327]

Answer:

The answer to question 4 is 25.

Step-by-step explanation:

25 ÷ 5 = 5

"/" the slanted thing is another way of saying divide.

7 0
2 years ago
Read 2 more answers
If the weight (in grams) of cereal in a box of Lucky Charms is N(489,6), what is the probability that the box will contain less
Wittaler [7]

Answer:

0.000064 = 0.0064% probability that the box will contain less than the advertised weight of 466 g.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

N(489,6)

This means that \mu = 489, \sigma = 6

What is the probability that the box will contain less than the advertised weight of 466 g?

This is the p-value of Z when X = 466. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{466 - 489}{6}

Z = -3.83

Z = -3.83 has a p-value of 0.000064

0.000064 = 0.0064% probability that the box will contain less than the advertised weight of 466 g.

3 0
2 years ago
If 24 = 3 • 2× then x =
solniwko [45]

Answer:

4

Step-by-step explanation:

24 = 3 * 2x

1. Switch sides.

3 * 2x = 24

2. Divide both sides by 6.

3 * 2x / 6 = 24 / 6

3. Simplify.

4

6 0
3 years ago
Other questions:
  • Change each mixed number into an equal improper fraction. a. 17⁄16 b. 115⁄9 c. 305⁄7 d. 1010⁄13 e. 243⁄5 f. 1291⁄2
    13·2 answers
  • Garth got 117 votes in the class election. 240 people voted. What percent of all the votes did he get?
    14·1 answer
  • For this item, any answers that are not whole numbers should be entered as decimals, rounded to the hundredth.
    13·1 answer
  • I really need help on this question anyone
    10·1 answer
  • How many cm are in 6.9km<br><br>6.9cm<br><br>690,000cm<br><br>6,900cm​
    6·1 answer
  • Drag the green point on the tape diagram to model a discount of 27%.
    12·1 answer
  • 2. Samantha's mom has a koi fish pond at the corner of her backyard. Samantha wanted to install a brick walkwa on two sides of t
    15·1 answer
  • Because there are 12 inches in a foot, consider an inch as 1/12 of a foot. Subtract 23'-6" from 90'-1" using fractions.
    8·1 answer
  • An x-intercept is __________________________________________________________, (also called a __________),
    13·1 answer
  • Help me with this Please.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!