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drek231 [11]
3 years ago
15

Can you use a calculator to determine if a number is rational or irrational?

Mathematics
1 answer:
Softa [21]3 years ago
7 0
No, calculators aren't that advanced
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Anyone who knows this mathematic question.to help please. Am giving the brainliest.
Oksana_A [137]
Log of 2x cube - log x = log 16 +log x

Use the identities!

Log 2x square = log 16x
2x square = 16 x
2x sqr - 16x = 0
2x(x-8) = 0
X = 0 or 8
According to logarithms x can’t be 0 so it’s 8
5 0
3 years ago
Two lines in intersecting planes are_____ skew<br> A)never<br> B)sometimes<br> C)always
EastWind [94]
I think the answer is B.

5 0
3 years ago
There are 800 members in an astronomy club, and 320 of them are females. What percent of the members are males.
Liula [17]
ANSWER: 60% of the members are males

How?
-800 total
-320 females
800 - 320 = 480
480/800 = 0.6

Hope this Helps!
8 0
3 years ago
Read 2 more answers
The cost of 4 cookies, 6 doughnuts, and 3 boxes of doughnut holes is $8.15. The cost of 2 cookies, 3 doughnuts, and 4 boxes of d
Naddika [18.5K]

Answer:

$1.25

Step-by-step explanation:

This can best be determined using a set of linear equations that are solved simultaneously.

This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations.

Let the cost of a cookie be c, cost of a doughnut be d and that of a box of doughnut hole be h then if cost of 4 cookies, 6 doughnuts, and 3 boxes of doughnut holes is $8.15, we have

4a + 6d + 3h = 8.15

and the cost of 2 cookies, 3 doughnuts, and 4 boxes of doughnuts holes is $7.20 then

2a + 3d + 4h = 7.20

Dividing the first by 2

2a + 3d + 1.5h = 4.075

subtracting from the second equation

2.5h = 3.125

h = 1.25

The cost of a box of doughnut holes is $1.25

5 0
3 years ago
True or false<br> The solution to the inequality 5x+2&lt;175x+2&lt;17 is x&lt;3x&lt;3.
Aloiza [94]

Answer:

I believe it is true. So sorry if it's not.

7 0
4 years ago
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