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
Scorpion4ik [409]
4 years ago
11

rhombus has sides of length 10 cm. and the angle between two adjacent sides is 76 degrees. Find the lengths of the other diagona

l.
Mathematics
1 answer:
lisabon 2012 [21]4 years ago
3 0
Let the length of one of the diagonals be 2x and the other be 2y, then
cos (76/2) = x/10
x = 10 cos 38 = 7.88 cm

sin (76/2) = y/10
y = 10 sin 38 = 6.16 cm
You might be interested in
What is the value of d when 11(d+1)=4(d+8)
andreev551 [17]
The answer is D=3     11(3*+1)=4(3*+8)
                                      11(4)=4(11)
                                         44=44
4 0
3 years ago
Read 2 more answers
The ratio of goldfish to gallons of water is 9 to 4.
Salsk061 [2.6K]
For every 9 goldfish, there are 4 gallons of water.
7 0
3 years ago
Use the vertical line test to determine whether or not the graph is a graph of a function.
netineya [11]

Answer:

29 is yes

and

30 is no

Step-by-step explanation:

hope this helpss

6 0
3 years ago
20% of a store’s sale are toys. If the store sells $1,200 in toys during one month, what are the store’s total sales?
hjlf

Answer:

$6000

Step-by-step explanation:

20%= 1/5

So you know that $1,200 is 1/5 of the total amount the store made in one month. To find the total amount you need to multiply 1,200 by 5.

1200*5= 6000

4 0
3 years ago
Which expression should you simplify to find the 90% confidence interval,
bogdanovich [222]

Answer:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.2870.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

Step-by-step explanation:

The estimated proportion of interest is \hat p=0.45

We need to find a critical value for the confidence interval using the normla standard distributon. For this case we have 95% of confidence, then the significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025.

And the critical value is:z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the true population proportion is interest is given by this formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

Replacing the values provided we got:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.287\\\\0.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

And we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

5 0
3 years ago
Other questions:
  • Simplify (w^6c) (-3w^4c^3)
    6·1 answer
  • Using the formula, find the slope of the line through the given points (9,7) and (7,9)
    13·1 answer
  • Why is 9 a square number:
    5·1 answer
  • Help that one side is 2x-2
    7·1 answer
  • Find the midpoint of the line segment joining the points (-1,-2) and (-3,13)
    6·1 answer
  • Which ratio is equal to the number π
    7·1 answer
  • What is the solution to this number sentence?<br> y-1 3/4=3
    9·1 answer
  • What is the inverse of F(x)= x^3+1
    15·2 answers
  • What is the value of the expression below?<br> 28+87+3]2^{3}
    7·1 answer
  • What is the missing side length???
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!