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
Svetllana [295]
2 years ago
12

Describe and correct the error in finding the value of x.

Mathematics
1 answer:
Colt1911 [192]2 years ago
5 0

Answer: 4+5 not 5 the real x is 13.5

Step-by-step explanation:

It is supposed to be 4/6 = (4+5)/x

So

2/3 = 9/x

x = 27/2 = 13.5

You might be interested in
José’s mother is trying to decide whether or not she should buy a 12-ounce package of coffee on sale for $7.50. She knows that s
Leya [2.2K]
She should chose the $9 because it is cheaper ;)
8 0
3 years ago
Need help with A and C <br><br>please :)
Dennis_Churaev [7]

First step: name the sides according to geometry standards, namely, the sides are named the same lowercase letter as the opposing angle. A revised diagram is shown.

Second step: we need to know the relationships of the trigonometric functions.

cosine(A)=cos(63) = adjacent / hypotenuse = AC/AB .................(1)

sine(A)=sin(63) = opposite / hypotenuse = CB/AB .......................(2)

We're given AB=7, so

using (1)

AC/AB=cos(63)

AC=ABcos(63)=7 cos(63) = 7*0.45399 = 3.17993 = 3.180 (to three dec. figures)

Using (2)

BC/AB=sin(63)

BC=ABsin(63) = 7 sin(63) = 7*0.89101 = 6.237 (to three dec. figures).


3 0
3 years ago
Which the parabola opens,
Dmitrij [34]

Table (A) represents the parabola y = x² - 6x in which the parabola opens and the y-intercept is (0, 0) table (A) is the correct choice.

<h3>What is a parabola?</h3>

It is defined as the graph of a quadratic function that has something bowl-shaped.

We have the tables shown in the picture.

We know the quadratic form of a parabola is:

y = ax² + bx + c

If a > 0 the parabola opens

In the equation:

y = x² - 6x

1 > 0 the parabola opens and y-intercept is:

y = 0 (plug x = 0 in the given equation)

a = 1, b = -6, and c = 0

Thus, table (A) represents the parabola y = x² - 6x in which the parabola opens and the y-intercept is (0, 0) table (A) is the correct choice.

Learn more about the parabola here:

brainly.com/question/8708520

#SPJ1

8 0
2 years ago
What is the value of x?<br> What is the measure of Angle WXZ?
bija089 [108]

Please find attached photograph for your answer

3 0
2 years ago
Read 2 more answers
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $23 monthly fee
algol [13]

Answer:

460 minutes, or 7 hours and 20 minutes.

Step-by-step explanation:

Your formula is 0.14x+23=0.19x

X represents your minutes.

0.14*460+23=87.4

0.19*460=87.4

6 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of three consecutive integers is 267. What is the largest integer
    11·1 answer
  • 7th grade math help me pleasee
    10·2 answers
  • Use the stem-and-leaf plot of Monthly Sales Goals to answer the question that follows.
    11·1 answer
  • I need help with this problem. Find the standard score (z) such that the area above the mean and below z is about 34% of the are
    10·1 answer
  • The area of a trapezoid is 144 ft squared if the height is 8 feet and one of the bases is 12 ft what is the length of the other
    10·1 answer
  • Plz help- In the diagram below, line L is parallel to line M, and line W is a transveral.
    10·1 answer
  • Please it is timed will give 30 points
    15·2 answers
  • Three machines turn out all the products in a factory, with the first machine producing 30% of the products, the second machine
    7·1 answer
  • Are there any inputs that cannot be evaluated by the function 6/x-3?
    11·1 answer
  • The length of one side of a parallelogram is 3 more than twice the length of the adjacent side.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!