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3 years ago

Must Just one match to fix the equation ? 6 + 4 = 4

Mathematics

2 answers:

givi [52]3 years ago

4 0

You could put a match over the equal sign. Turn this equals into this does not equal.

This would look like this:

6+4 ≠4

And that would be your answer! Hope this helps :)

zhannawk [14.2K]3 years ago

3 0

Answer:

6 + 4 × -2/4 = 4

Step-by-step explanation:

hi hope u understand

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What formula should be used to find the circumference of a circle

Inessa05 [86]

The circumference = π x the diameter of the circle (Pi multiplied by the diameter of the circle). Simply divide the circumference by π and you will have the length of the diameter. The diameter is just the radius times two, so divide the diameter by two and you will have the radius of the circle

3 0

3 years ago

Read 2 more answers

Which of the following is an example of an exponential function?

Orlov [11]

Answer: Choice D $p(\text{x}) = 500(1.02)^{\text{x}}$

Reason:

Exponential functions have the variable in the exponent.

Choice A is a polynomial, which means we can rule it out. Choice B is a log function, so we can rule it out also.

Choice C is a rational function because it is a ratio of two polynomials. This rules out choice C.

Choice D is the only function with the variable in the exponent. That is assuming you meant to say $p(\text{x}) = 500(1.02)^{\text{x}}$ instead of $p(\text{x}) = 500(1.02){\text{x}}$

4 0

2 years ago

The marketing club at school is opening a student store. They randomly survey 50 students about how much money they spend on lun

Luden [163]

Answer:

The expected value for a student to spend on lunch each day = $5.18

Step-by-step explanation:

Given the data:

Number of students______$ spent

2 students______________$10

1 student________________$8

12 students______________$6

23 students______________$5

8 students_______________$4

4 students_______________$3

Sample size, n = 50.

Let's first find the value on each amount spent with the formula:

$\frac{num. of students}{sample size} * dollar spent$

Therefore,

For $10:

$\frac{2}{50} * 10 = 0.4$

For $8:

$\frac{1}{50} * 8 = 0.16$ l

For $6:

$\frac{12}{50} * 6 = 1.44$

For $5:

$\frac{23}{50} * 5 = 2.3$

For $4:

$\frac{8}{50} * 4 = 0.64$

For $3:

$\frac{4}{50} * 3 = 0.24$

To find the expected value a student spends on lunch each day, let's add all the values together.

Expected value =

$0.4 + $0.16 + 1.44 +$2.3 + $0.64 + $0.24

= $5.18

Therefore, the expected value for a student to spend on lunch each day is $5.18

7 0

2 years ago

The measure of one acute angle is 3 times the sum of the measure of the other acute angle and 8

Anettt [7]

Let x be the unknown angle.

Make an equation using the formula.

"measure of one acute angle is 3 times" Since we know that x is the one acute angle, we can multiply that by 3 to get 3x.

"the sum of" when ever you see the word 'sum' it means that there will be an addition process involved and in this case it also means that 3x will equal to the rest of the equation. (3x=)

"measure of the other acute angle and 8" We already know that the other angle is x . Since there is no other indicator of the 8 being subtracted, multiplied, and divided and that we know this is an addition problem, we can conclude that 8 will be added to the other angle. (x+8)

So, now we have the equation and all we have to do is simplify it.

3x= x+8
-x -x *Move constants and variables to opposite sides*
------------
2x=8
--- --- *Divide by 2 to isolate the variable*
2 2

x=4

So, I'm assuming you want to know the measure of both angles. All you have to do is plug in the x in the 3x and x+8 depending on which angle you want.

3x
3(4)=12
The measure of the first angle is 12.

x+8
4+8= 12
The measure of the second angle is also 12.

8 0

2 years ago

Is the opposite of a rational number also a rational? Explain. Please do not use google to answer.

Sunny_sXe [5.5K]

opposite means the sign changes (from positive to negative or vice versa)

since a rational number includes both positives and negatives, then the opposite of a rational is also a rational.

For example: $\frac{3}{5}$ is a rational number. Its opposite is $-\frac{3}{5}$ , which is also a rational number.

Hope this helped!

Answer: YES

7 0

2 years ago