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
oee [108]
1 year ago
14

28.)Find the value of x.320(3x-10°A.) x = 22.67B.) x = 34.67C.) x = 21.6D.) x = 24.25

Mathematics
1 answer:
katen-ka-za [31]1 year ago
7 0

Since the big triangle is an isosceles one, we conclude that the angles of the left triangle are: 32, 90 and 3x-10. Sinche the sum of this angles have to be 180° we have:

(3x-10)+32+90=180

Solving for x, we have:

\begin{gathered} (3x-10)+32+90=180 \\ 3x-10+32+90=180 \\ 3x=180+10-90-32 \\ 3x=68 \\ x=\frac{68}{3} \\ x=22.67 \end{gathered}

Therefore, x=22.67 and the answer is A.

You might be interested in
A=1/2(a+b)h solve for h
max2010maxim [7]
H= 2a/a+b woolud be the answer
5 0
2 years ago
I need help with this
miv72 [106K]
Your answer would be 3
3 0
2 years ago
Determine the margin of error, m , of a 99% confidence interval for the mean IQ score of all students with the disorder. Assume
madreJ [45]

Answer:

E= 6.45

standard deviation is σ = 15,

The critical value is z(α/2) = 2.58.

Step-by-step explanation:

Margin error is the value that is lie above and below the sample.It gives percentage of numbers.Its is the product of critical value standard deviation and standard error of statistic.

General formula for the margin of error is

Margin of error = critical value  ×   standard error of statistic

                        = z \alpha /2  ×   σ √n

z-value from two tailed is listed below:

From the table of standard normal distribution, probability value of 0.10.

row and column values gives the area to the two tail of z.

The positive z value is 2.58.

standard deviation is σ = 15,

The critical value is z(α/2) = 2.58.

after putting these vales we obtain the margin of error value that is

E= 6.45

7 0
3 years ago
Please help! solve for the value of y
rewona [7]

Answer:

26

Step-by-step explanation:

5y-3+2y+1=180

7y-2=180

7y=182

y=26

7 0
2 years ago
Is it possible for two quantities to have the same dimensions but different units? yes. no?
Debora [2.8K]

Yes.

1 inch = 2.54 centimeters, for example. These two dimensions are the same, but the units are different.

3 0
2 years ago
Other questions:
  • A restraunt is making a large amount of salad dressing. the recipe use 72 ounces of vinegar and 126 ounces of oil.what is the ra
    8·1 answer
  • Please help me with this
    6·1 answer
  • Write the equation of a vertical ellipse with a major axis of 20, a minor axis of 12, and a center of (6, 3)
    7·1 answer
  • Solve the system of linear equations by substitution. y−x=0y−x=0 2x−5y=9
    13·1 answer
  • You read 105 pages of a novel over 7 days what is the mean number of pages you read each day
    12·2 answers
  • Which point is not on the graph of the equation y = x2 + 3x - 5. A.(2,5)
    7·1 answer
  • Factor completely 4x2 - 121
    5·2 answers
  • The distance that a spring will stretch varies directly as the force applied to the spring. A force of 8080 pounds is needed to
    14·1 answer
  • Use synthetic division to find the remainder. When 3x^ 2 - 2x - 4 is divided by x - 3.
    8·1 answer
  • Evaluate: 5 + 2 • 42?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!