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3 years ago

Which one of these numbers is not like the others 25,16,49,63,81

Mathematics

2 answers:

Elena-2011 [213]3 years ago

8 0

16 is the only even and the rest are ods

PSYCHO15rus [73]3 years ago

7 0

1 way: You can see that

$25=5^2;$
$16=4^2;$
$49=7^2;$
$81=9^2;$
63 is not a perfect square.

Answer: 63 is not like the others.

2 way:

numbers 25, 63, 49 and 81 are odd numbers;
number 16 is even number.

Answer: 16 is not like the others.

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Read 2 more answers

Write the equation of the line in slope-intercept form.

Ymorist [56]

Answer:

y = 1/40x + 20

Step-by-step explanation:

Slope-intercept equation format:

y = mx + b

m = slope/ gradient/ constant of variation/ rate of change

b = y-intercept

To find the slope, use the formula:

$\frac{y_2-y_1}{x_2-x_1}$

Find two random points:

1 - (0.5, 40) , 2 - (1, 60)

Plug in:

$\frac{60-40}{1-0.5}$

Solve:

$\frac{20}{0.5}$

Divide:

$\frac{1}{40}$

The y-intercept is when the x-coordinate is equal to 0.

The y-intercept is always the beginning.

So observing the graph, the first point is (0, 20)

The x-coordinate is 0.

Y intercept = 20.

Plug in both slope and y-intercept:

y = 1/40x + 20

8 0

2 years ago

Help and explanation.

Natasha_Volkova [10]

Answer:

Andrew

Step-by-step explanation:

Abby:

Since red cards are negative, a red 9 would represent the number -9. And because black cards are positive, a black 6 would represent the number 6. To get the sum, we add the two numbers together:

-9 + 6

That gives us a total of -3.

Ashley:

We can do the same thing as before. A black seven would represent 7 and a red 8 would represent -8. Next we again add them together:

7 + (-8)

That gives us a total of -1.

Andrew:

The red 4 is -4, while the black 4 is 4:

-4 + 4

That gives us a total of 0.

Anna:

Anna has a red 8 which represents -8 and another red, a three, which would represent -3. We can add the two to get:

-8 + (-3)

That gives us a total of -11.

In all, Andrew has the highest sum of 0, which means he won the game.

6 0

3 years ago

Can someone help me and explain on paper , I’m still so confused

Oksanka [162]

Answer:

Your answer is -5

Step-by-step explanation:

On paper;

8 0

3 years ago