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
Wewaii [24]
3 years ago
5

In triangle ABC and triangle XYZ , if angle A and angle B are acute angles such that cos A = cos X then show that angle A = angl

e X
Mathematics
1 answer:
just olya [345]3 years ago
3 0
6x3=18-3=15 Hope it helps.
You might be interested in
The price of a picture is £80. Find the new price after it has been decreased by 20%.
rusak2 [61]
Hello there, and thank you for posting your question here on brainly.

You have to find the 20% decrease in 80.

To find the decrease, you have to multiply 80 and 20%.

80 * 20% ===> 64

The price is now 
<span>£64.

Hope this helped!! ☺♥
</span>
7 0
2 years ago
Write slope-intercept form an equation of the line passes through (-1,-1), (1,5)
kherson [118]
Knowing that slope-intercept form is y=mx+b. mx being the slope and b being the y-intercept.

First, you will first find the slope, which is (y2-y1)/(x2-x1):
5-(-1) / 1-(-1) = Which becomes 6/2.
6/2 = 3. So the slope is 3x

Now when you plot the dots on a graph with a slope of 3 (basically 3/1 knowing that slope is rise over run) you will see that the point that intercepts on the y-axis is 2. So your y-intercept, or b in this equation, is 2.

I believe the slope-intercept form: y=3x+2



3 0
3 years ago
According to a study conducted by the Gallup Organization, the the proportion of Americans who are afraid to fly is 0.10. A rand
notsponge [240]

Answer: 0.1457

Step-by-step explanation:

Let p be the population proportion.

Given: The proportion of Americans who are afraid to fly is 0.10.

i.e. p= 0.10

Sample size : n= 1100

Sample proportion of Americans who are afraid to fly =\hat{p}=\dfrac{121}{1100}=0.11

We assume that the population is normally distributed

Now, the probability that the sample proportion is more than 0.11:

P(\hat{p}>0.11)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.11-0.10}{\sqrt{\dfrac{0.10(0.90)}{1100}}})\\\\=P(z>\dfrac{0.01}{0.0090453})\ \ \ [\because z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}} ]\\\\=P(z>1.1055)\\\\=1-P(z\leq1.055)\\\\=1-0.8543=0.1457\ \ \ [\text{using z-table}]

Hence, the probability that the sample proportion is more than 0.11 = 0.1457

3 0
3 years ago
What are the coordinates of the point (-3,4) after a translation of 2 units down and 5 units left
marta [7]

Answer:

(-8, 2)

Step-by-step explanation:

Start with (-3, 4).  Subtract 5 units from -3, obtaining -8, and subtract 2 units from 4, obtaining 2:  (-8, 2)

5 0
3 years ago
How many cups is there in 1 quart?
iren [92.7K]
There is 4 cups in 1 quart.
4 0
2 years ago
Other questions:
  • What is the value of x, when -25(x - 4) = -55(x - 10)?
    9·2 answers
  • Solve for x in each problem 4x +2=42
    8·2 answers
  • What is the additive inverse of the complex number 9 - 4i
    8·1 answer
  • Solve for x. The two figures are similar.<br> 24<br> 1<br> 16<br> 21<br> 100<br> 27-6<br> I
    15·1 answer
  • 13 An archaeologist plans to excavate a circular burial
    11·1 answer
  • 13 is 26% of what number? Explain.<br>​
    14·2 answers
  • *PLEASE ANSWER!!!, I DONT GET IT!! HELP!!*
    5·1 answer
  • 3x times (7 times x)
    13·1 answer
  • Someone please help me with this question And you can get 20 points
    5·1 answer
  • HELP HELP I NEED HELP​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!