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
djverab [1.8K]
3 years ago
12

Question 4 Use the figure below to find the value of x and y

Mathematics
1 answer:
Tpy6a [65]3 years ago
4 0

Answer:

x=4, y=8

Step-by-step explanation:

step 1

Find the value of y

we know that

In the right triangle of the figure

cos(30\°)=\frac{4\sqrt{3}}{y}

Remember that

cos(30\°)=\frac{\sqrt{3}}{2}

so

\frac{\sqrt{3}}{2}=\frac{4\sqrt{3}}{y}

Simplify

y=8\ units

step 2

Find the value of x

In the right triangle of the figure

sin(30\°)=\frac{x}{8}

Remember that

sin(30\°)=\frac{1}{2}

so

\frac{1}{2}=\frac{x}{8}

x=4\ units

You might be interested in
IREADY MATH LEVEL G<br><br> HELP ASAP DUE AT 11:59!!
lesya692 [45]
I believe this is the answer

6 0
3 years ago
The volunteers at a high school football team's concession stand are trying to decide on the price of the hot dogs they are sell
Dovator [93]

Answer:

The constant term in the polynomial is 140 and it represents the revenue when the price is not increased.

Step-by-step explanation:

To find: What is the constant term in the polynomial expression, and what does it represent?

The given expression is -8x^2 + 54x + 140.

To find the constant term we can simply put x=0 in the given equation where x represents the number of $1 increase in price.

=-8(0)^2 + 54(0) + 140

=140

The constant term is 140 and it represents the revenue when the cost of a hot dog is $2.

Hence, the constant term in the polynomial is 140 and it represents the revenue when the price is not increased.

8 0
3 years ago
A bag of corn tortilla chips costs 2.89 after a 15% discount. What is the original price?
Montano1993 [528]

Answer:

3.4

Step-by-step explanation:

Let the original price of the bag be = P, the selling price =2.89 after a 15% discount,

Then, Selling price= Original price- Discount on original price

2.89=P-P(0.15)

2.89=P(1-0.15)

2.89=0.85P

P=\frac{2.89}{0.85}

P=3.4

Thus, the original price was 3.4.

4 0
3 years ago
Read 2 more answers
C an some one help me<br>​
Pavlova-9 [17]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
To estimate μ, the mean salary of full professors at American colleges and universities, you obtain the salaries of a random sam
GenaCL600 [577]

Answer:

<h3>73220±566.72</h3>

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

CI = xbar ± z*s/√n

xbar is the sample mean =  $73,220

z is the z score at 99% CI = 2.576

s is the standard deviation = $4400

n is the sample size = 400

Substitute the given values into the formula;

CI = 73,220 ± 2.576*4400/√400

CI = 73,220 ± 2.576*4400/20

CI = 73,220± (2.576*220)

CI = 73220±566.72

Hence a 99% confidence interval for μ is 73220±566.72

5 0
3 years ago
Other questions:
  • Which number sentence best represents this story problem? Carol picks 42 apples. She puts an equal number of apples in each of 6
    8·2 answers
  • 2 times what equals 36
    9·1 answer
  • Simplify 13 + 2 - 5 - 15 a -25 b -5 c 5
    6·2 answers
  • NEED HELP!! #6,7,8 PLEASE
    8·1 answer
  • A television station shows commercials for 1312 minutes each hour. How many 45-second commercials can it show? Enter your answer
    9·1 answer
  • Trapezoid WXYZ is shown on the coordinate grid. Trapezoid WXYZ is dilated with the origin as the center of dilation using the ru
    11·1 answer
  • If you have a jumbo pack of gum and 4 friends ask for 8 How much gum do you have left?
    5·2 answers
  • Can someone please help me
    6·1 answer
  • Write the word sentence as an inequality a number b is less than 15​
    15·1 answer
  • Jasmin rakes at two different houses. It takes her 2 1/3 hours to rake leaves at the first. It takes her 1/2 of that time to rak
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!