All categories

3 years ago

Find the student’s error in solving the following inequality.

Mathematics

1 answer:

Leto [7]3 years ago

6 0

Answer:

The student should have switched the direction of the inequality sign to

get –5 > x for a final answer.

Step-by-step explanation:

When multiplying or dividing an inequality by a negative "flip" the inequality sign

The student should have switched the direction of the inequality sign to

get –5 > x for a final answer.

---------------

Note:

For a more conventional appearance the entire inequality can be flipped to

–5 < x

You might be interested in

The number cube is rolled and a coin is tossed .How can you sketch a tree diagram to represent the sample space ?

nevsk [136]

Answer:

Refer to the diagram in the attachment.

Step-by-step explanation:

There are two events here: the first one is the number on the cube. The second one is the outcome of the coin toss. This tree should contain two columns, one for each event.

Start with the first column. Let $N$ be the outcome of the number cube. There are six possible values: $\text{$1,\, 2,\, 3,\, 4,\, 5,$ and $6$}$ . That corresponds to six branches, one for each outcome.

Continue to the second column. Let $C$ be the outcome of the coin toss. No matter which number was obtained for $N$ , there would always be two possible outcomes for

3 0

3 years ago

an exponential function of form f(x)=b^x includes the points (2, 16), (3, 64), and (4, 256) what is the value of b

timofeeve [1]

The value of b is 4

Step-by-step explanation:

The form of an exponential function is $f(x)=a(b)^{x}$ , where

a is the initial value (value f(x) at x = 0
b is the growth/decay factor
T find the values of a and b substitute x and f(x) by the coordinates of any points belong to the function

∵ $f(x)=b^{x}$

∵ The function includes the points (2 , 16) , (3 , 64) , (4 , 256)

- To find b substitute x and f(x) by the coordinates if any point above

∵ x = 2 and f(x) = 16

∴ $16=(b)^{2}$

- Take √ for both sides

∴ ± 4 = b

Substitute x by 3 and f(x) 64 to check your answer

∵ $64=(b)^{3}$

- Take ∛ for both sides

∴ 4 = b

∴ The value of b is 4 only

The value of b is 4

Learn more:

You can learn more about the inverse of the exponential function in brainly.com/question/11921476

#LearnwithBrainly

5 0

3 years ago

Solve for x. This figure is a trapezoid.<br> A) 12<br> B)9<br> C)3<br> D) 10

kicyunya [14]

Answer:

c)3

Step-by-step explanation:

numbers between 6 and 10 are, 7, 8, and 9

the median is 8 so the line in the middle has to be 8

8-5=3 so x=3

7 0

3 years ago

Read 2 more answers

What is the largest number you can form from the numbers $2,5,8,9,10$ and the operations $\times,+,+,-$, and exactly one pair of

Levart [38]

Answer:

The largest number is 218.

Step-by-step explanation:

The given numbers are 2,5,8,9,10, given operations are ×,+,+,- and exactly one pair of parentheses.

We need to find the largest number which can be form by using given information.

We know that multiplication of two lager numbers is greater than their addition.

We need to multiply 10 and sum of 9,8,5. To get the largest number we have subtract the smallest number.

So, the largest possible number is defined by the expression

$10\times (9+8+5)-2$

$10\times (22)-2$

$220-2$

$218$

Therefore, the largest number is 218.

6 0

3 years ago

If 80 out of 160 students voted for bulldog what precent of students voted for bulldog

amid [387]

To figure out percents you can set it up like:
80/160 = x%/100%
Then cross multiply:
160x = 8000; now divide each side by 160 to isolate x, and you get x = 50%
The answer makes sense, because 80 is half (or 50%) of 160

8 0

4 years ago