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
yuradex [85]
3 years ago
15

Determine the first expressions to evaluate the problem.

Mathematics
1 answer:
Helga [31]3 years ago
8 0

Answer:

31

Step-by-step explanation:

5+9+15+2= 31

by order of pemdas

parentheses

exponents

multiply

divide

add

subtract

first is (4+9)

next is 3^2

third is 8/4

finally you add them all together

You might be interested in
The following data set represents the number of siblings 6students have in much class
yuradex [85]

Answer:

there is nothing there

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What angle does a semicircle have
dolphi86 [110]

Assuming you mean the central angle, semicircles have central angles of \boxed{180 ^{\circ}}.

7 0
3 years ago
Read 2 more answers
Suppose that θ is an acute angle of a right triangle and that sec(θ)=52. Find cos(θ) and csc(θ).
insens350 [35]

Answer:

\cos{\theta} = \dfrac{1}{52}

\csc{\theta} = \dfrac{52}{\sqrt{2703}}

Step-by-step explanation:

To solve this question we're going to use trigonometric identities and good ol' Pythagoras theorem.

a) Firstly, sec(θ)=52. we're gonna convert this to cos(θ) using:

\sec{\theta} = \dfrac{1}{\cos{\theta}}

we can substitute the value of sec(θ) in this equation:

52 = \dfrac{1}{\cos{\theta}}

and solve for for cos(θ)

\cos{\theta} = \dfrac{1}{52}

side note: just to confirm we can find the value of θ and verify that is indeed an acute angle by \theta = \arccos{\left(\dfrac{1}{52}\right)} = 88.8^\circ

b) since right triangle is mentioned in the question. We can use:

\cos{\theta} = \dfrac{\text{adj}}{\text{hyp}}

we know the value of cos(θ)=1\52. and by comparing the two. we can say that:

  • length of the adjacent side = 1
  • length of the hypotenuse = 52

we can find the third side using the Pythagoras theorem.

(\text{hyp})^2=(\text{adj})^2+(\text{opp})^2

(52)^2=(1)^2+(\text{opp})^2

\text{opp}=\sqrt{(52)^2-1}

\text{opp}=\sqrt{2703}

  • length of the opposite side = √(2703) ≈ 51.9904

we can find the sin(θ) using this side:

\sin{\theta} = \dfrac{\text{opp}}{\text{hyp}}

\sin{\theta} = \dfrac{\sqrt{2703}}{52}}

and since \csc{\theta} = \dfrac{1}{\sin{\theta}}

\csc{\theta} = \dfrac{52}{\sqrt{2703}}

4 0
3 years ago
Help plzz be serious
Rzqust [24]

Answer: 864

Step-by-step explanation:

mulitiply all

5 0
3 years ago
A square pyramid is shown below:
padilas [110]

Answer:

8.01 Is the answer your welcome

3 0
3 years ago
Other questions:
  • The formula for any arithmetic sequence is an = a1 + d(n - 1), where an represents the value of the nth term, a1 represents the
    7·2 answers
  • Which is greater??<br> One cup or 250 mm
    14·1 answer
  • PLEASE HELP ME! I NEED A MATH PRO! (see attachment) best answer get's brainliest, 5 stars, and a thanks! Sorry for asking the sa
    5·1 answer
  • There are 21 students in a class. The ratio of the number of boys to the number of girls is 4:3. How many girls are in the class
    5·2 answers
  • 80 has how many significant digits?
    5·2 answers
  • What are the coordinates of the image of the point (-2, 8) when rotated 180 degrees around the origin?
    12·1 answer
  • Pls answer correctly :)
    13·1 answer
  • Melanie needs 5,000 chocolates for an event so far she has brought 2 cases of 1,125 chocolates each how many more does she need
    9·2 answers
  • The seagull population on a small island in the Atlantic Ocean can be calculated using the formula
    5·1 answer
  • 40 Points!!!<br> What are the domain and the range of this function?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!