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
cupoosta [38]
3 years ago
7

What is the length of leg s of the triangle below? 45 4-12 90° 45

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Using the cosine ratio in the right triangle and the exact value

cos45° = \frac{1}{\sqrt{2} } , then

cos45° = \frac{adjacent}{hypotenuse} = \frac{s}{4\sqrt{2} } = \frac{1}{\sqrt{2} } ( cross- multiply )

s × \sqrt{2} = 4\sqrt{2} ( divide both sides by \sqrt{2} )

s = 4 → A

You might be interested in
What is the value of 12⁰?​
MatroZZZ [7]

Heyo! ;D

So, I think I may of heard about this topic in the past...are you working with degrees of circles? Plane angles? If so, you can use this formula to find your answer:

12° × \pi ÷ 180 = <u>0.2094(rad)</u>

I'm not entirely sure, however I hope this somewhat helped! If so, please lmk! Tysm and good luck!

8 0
3 years ago
Read 2 more answers
Find the interquartile range from 2, 5, 9, 1, 6, 9, 3 round to the nearest tenth
MariettaO [177]
Put the numbers in order
1,2,3,5,6,9,9

Q1 = 2
Q2 (median -- middle number) = 5
Q3 = 9

IQR = Q3 - Q1 = 9 - 2 = 7
4 0
3 years ago
Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the s
Furkat [3]

Answer:

\frac{16\pi}{3}.

Step-by-step explanation:

I graphed the region in the image below. The blue line is y=3, the purple line is x=1 and the green curve is y = 4x-x^{2}. The shaded region in blue is the region we are going to rotate.

Now, to find the volume  v= 2\pi \int\limits^a_b {p(x)h(x)} \, dx where a=1, b=3 (left and right points of the region), p(x) is the distance from the rotation axis to the diferential Δx, we say p(x)=x and h(x) is the height of the region, in this case is h(x)= 4x-x^{2}-3. Then,

v =  2\pi \int\limits^1_3 {x(4x-x^{2}-3)} \, dx

=  2\pi \int\limits^1_3 {4x^{2}-x^{3}-3x} \, dx

= 2\pi (\frac{4x^{3}}{3}-\frac{x^{4}}{4}-\frac{3x^{2}}{2})^{3}_1

= 2\pi (36-\frac{81}{4}-\frac{27}{2}-\frac{4}{3}+\frac{1}{4}+\frac{3}{2})

= 2\pi*\frac{8}{3}

=  \frac{16\pi}{3}.

8 0
3 years ago
He mean potassium content of a popular sports drink is listed as 140 mg in a 32-oz bottle. Analysis of 20 bottles indicates a sa
mezya [45]

Answer: (A) H0: μ = 140 mg vs. H1: μ ≠ 140 mg

Step-by-step explanation:

Usually null hypothesis represents the claim that the values associated to the groups being tested have no statistical difference but alternative hypothesis supports the claim that there is statistical difference.

Let \mu be the population mean .

We are given that the mean potassium content of a popular sports drink is listed as 140 mg in a 32-oz bottle.

i.e. Null hypothesis :H_0:\mu=140

Alternative hypothesis for two tail hypothesis has sign (≠).

i.e. Alternative hypothesis : H_1 : \mu\neq140

∴ The hypotheses for a two-tailed test of the claimed potassium content:

H0: μ = 140 mg vs. H1: μ ≠ 140 mg

3 0
4 years ago
What is the slope of the line?<br> $<br> 2<br> 45<br> 6&gt;x<br> -3
Nikitich [7]

Step-by-step explanation: i am pretty sure it is 1

4 0
4 years ago
Other questions:
  • 4/5 equivalent to 5/6
    13·1 answer
  • If m and n are real numbers such that 4m + n = 10, then which of the following expressions represents m?
    15·2 answers
  • DONT ANSWER IF UR NOT SURE SHOW WORK
    14·2 answers
  • Help please show work
    15·2 answers
  • Which model shows the correct factorization of x2 – x – 2? Image for option 1 Image for option 2 Image for option 3 Image for op
    13·2 answers
  • in Manufacturing Company with 450 employees begins a new product line and must increase their number of employees by 18%. How ma
    12·1 answer
  • Given the function f(x) = 3x + 1 what is f(-2)?
    11·2 answers
  • Simplify: 299.081+59.26-95.32-365.195
    5·1 answer
  • A copy machine makes 36 copies per minute. How long does it take to make 117 copies
    15·2 answers
  • Use Distance Formula or Pythagorean Theorem to Solve for the following segment. The points are (-5,3) and (-2,-3).
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!