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
xeze [42]
3 years ago
15

Error Analysis A math test asks the students to solve the inequality X-2<16, and then graph the

Mathematics
2 answers:
Vitek1552 [10]3 years ago
6 0

Answer:

The solution is X<18

Step-by-step explanation:

When Mason was solving the inequality he subtracted two from the equation instead of adding two to solve for x.

X-2<16

X<18

yaroslaw [1]3 years ago
6 0

Answer:

<h2>x < 18</h2>

Step-by-step explanation:

x - 2 < 16

We eliminate 2 to isolate the variable, x by adding 2 to both sides. -2 + 2 = 0.

x < 18

We can test this because 17 is less than 18. Pretend x = 17

17 < 18✅

Mason subtracted 2, instead of adding 2.

In order to graph this, put an <em>open circle </em>at 18, and the arrow should point to the <em>left.</em>

<em />

<em>Hope this helps ;D</em>

You might be interested in
Which expression is equal to 5^4 ⋅ 5^8?
alex41 [277]

It should be A. You would keep the 5, and the exponent should be 4+8, which is 12.

3 0
3 years ago
Read 2 more answers
I can’t figure out, can someone please explain how to get the correct answer?
Karolina [17]

Answer:

  a)  CD = 9

  b)  AB = 20

Step-by-step explanation:

<h3>a)</h3>

In this geometry, all of the right triangles are similar. This means The ratio of short side to long side is the same for all of the triangles.

You are given the short and long sides of ΔADB, and the long side of ΔCDA. You are asked for the short side of ΔCDA, so you can write the proportion ...

  CD/AD = AD/BD

  CD/12 = 12/16

  CD = 12(12/16)

  CD = 9

__

<h3>b)</h3>

There are a couple of options for finding AD. One you may be familiar with is the Pythagorean theorem.

  AB² = AD² +DB²

  AB² = 12² +16² = 144 +256 = 400 . . . . fill in known values

  AB = √400 = 20 . . . . . take the square root

__

Alternatively, you can use the same proportional relationship that is described above. Here, we make use of the ratio of the hypotenuse to the long side.

  AB/BD = CB/AB

  AB² = BD·CB = 16·(16+9) = 16·25 . . . . cross multiply; fill in known values

  AB = √(16·25) = 4·5 . . . . . take the square root

  AB = 20

_____

<em>Additional comment</em>

This geometry, where the altitude of a right triangle is drawn, has some interesting properties. We have hinted at them above.

You can write three sets of proportions for this geometry: the ratios of short side and long side; the ratios of short side and hypotenuse; and the ratios of long side and hypotenuse. When you look at the way the sides touching the longest hypotenuse relate to that hypotenuse, you see three similar relations:

  AC = √(CD·CB)

  AD = √(DC·DB)

  AB = √(BD·BC) . . . . . . . . the relation used in part (b) above

This "square root of a product" is called the <em>geometric mean</em>. In effect, the length of a side touching the longest hypotenuse is the geometric mean of the two segments of that hypotenuse that it touches.

7 0
2 years ago
Which triangle shows the incenter at point A? <br><br>The Images are placed in order A- D
vaieri [72.5K]

Answer:

B

Step-by-step explanation:

the incenter is found by constructing angle bisectors and then intersecting the three angle bisectors.

3 0
3 years ago
Read 2 more answers
Lia has 7 blue pencils and 28 red pencils. Maria has 14 blue pencils and 42 red pencils, and Tia has 10 blue pencils and 30 red
Sergeeva-Olga [200]
Maria and Tia have the same ratio
6 0
3 years ago
Read 2 more answers
For a ride on a rental scooter, John paid an $8 fee to start the scooter plus 6 cents per minute of the ride. The total bill for
enot [183]

The linear equation is 8+0.06x=19.94 and John rode the scooter for 199 minutes.

Fee to start the scooter = $8.

Fee to ride per minute = 6 cents = $0.06.

Total bill = $19.94.

Let x be the minutes for which he rides the scooter.

The linear equation is formed as:

8+0.06x=19.94

0.06x=19.94-8

0.06x=11.94

x=199 minutes.

So, John rode the scooter for 199 minutes.

Learn more about linear equation here:

brainly.com/question/24794429?referrer=searchResults

5 0
1 year ago
Read 2 more answers
Other questions:
  • How do you write a ratio for NINE SLICES OF PIZZA FOR SEVEN KIDS?
    14·1 answer
  • 1. (a) What is the complement of the angle 42°?<br>(b) What is the supplement of the angle 135°?​
    15·1 answer
  • If sine theta equals one half and pi over two is less than theta is less than pi, what are the values of cos Θ and tan Θ?
    10·1 answer
  • 1. I need help with question in the attached picture!
    6·1 answer
  • If point F is the midpoint of segment DE, which statement is true?
    13·1 answer
  • Help me please And ty
    11·1 answer
  • Please help me with my math! Thank you!
    6·1 answer
  • Solve for x in these two similar triangles
    8·1 answer
  • A freight trains departs from one train station to its destination at a constant speed. Suppose the distance the train is from t
    11·1 answer
  • What is the area of a triangle with a base of 10 cm and a height of 12 cm?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!