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Anna35 [415]
3 years ago
15

Consider the following sets.

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
7 0

Answer:

[2,3] is the answer

assuming you didn't have equal symbols under the inequality signs, you know \le and \ge.

Step-by-step explanation:

Ok let's solve 3x+4>13 or 1/2 x+3<4.

Let's begin with 3x+4>13.

3x+4>13

Subtract 4 on both sides:

3x>9

Divide both sides by 3:

x>3

Now the other 1/2 x +3<4.

Subtract 3 on both sides:

1/2 x<1

Multiply both sides by 2:

x<2

So we have x>3 or x<2

If we graph this, this will give us better idea of what is and isn't a solution.

~~~~~~~~O                            x<2

                             O~~~~~~ x>3

------------(2)---------(3)---------

The only numbers not included are between 2 and 3 (inclusive).

So if x is between [2,3] then A or B has no solution.

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T(x) = 7x, t(x) = 49
lawyer [7]

Answer:

x = 7

Step-by-step explanation:

7 * x = 49

x = 49

um i dont really know what you meant but i hope this helps in some way!

3 0
3 years ago
Read 2 more answers
Kareem wants to find the number of hours the average sixth-grader at his school practices an instrument each week. Which is the
melomori [17]

Answer:

He can randomly survey 50 sixth-graders in the school. Because if he asked 30 people in the band some people might be in a different grade, if he randomly 50 boys in the school then what if half didn't even play anything. If he did friend what if most friends don't even play a instrument.

Then which one would it be it would be more easier if he did 50 random sixth-graders because they might know friends or themselves and a person who plays an instrument.

Hope this helps

4 0
3 years ago
Read 2 more answers
If xy=0 what must be true about either x or y?
Anettt [7]

Answer:

D. either x or y must equal 0​

Step-by-step explanation:

Its given that xy = 0

Remember that product of two numbers can be zero only if:

Both of them are zero or Either of them is zero as zero multiplied to any non-zero number will always be equal to zero. This is known as Zero Product Property.

So, if the product of x and y is equal to 0 there are two possibilities:

  • Both x and y are equal to 0
  • Either x or y must be equal to 0

Note that the condition both x and y are equal to zero is not a must condition, because even if one of them is equal to zero, the entire expression will be equal to zero.

Hence, the condition which has to be true in all cases for xy = 0 is:

D. either x or y must equal 0​

6 0
3 years ago
This data set represents the number of cups of flour used in different recipes. What is the mean of this data set? {1/2, 1/3, 2/
g100num [7]

Answer:

what is the answer

Step-by-step explanation:

I'm doing the test right now

5 0
2 years ago
What is the area of this triangle?
Diano4ka-milaya [45]

ANSWER

56.1 square inches.

EXPLANATION

The area of this triangle can be calculated using the formula,

Area =  \frac{1}{2} ab \sin( C)

where a=8in.

b=14.2 in.

and C=99° is the included angle.

We plug in these values to obtain,

Area =  \frac{1}{2} \times  8 \times 14.2 \sin( 99 \degree)

Area = 56.1007

We round to the nearest tenth to get,

56.1 sq. inch

6 0
3 years ago
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