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3 years ago

Why is 0 not an identity for subtraction? explain

Mathematics

1 answer:

ki77a [65]3 years ago

5 0

When zero is added to or subtracted to a number, the number is not affected.

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If we assume that all possible poker hands (comprised of 5 cards from a standard 52 card deck) are equally likely, what is the p

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Answer:

See the attached photo for the calculations and answers

Step-by-step explanation:

The calculations and explanations are shown in the 3 attached photos below.

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3 years ago

A line passes through the origin and the point (12,9). Identify the slope of the line.

cestrela7 [59]

Answer:

the slope (m) = 3/4

Step-by-step explanation:

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3 years ago

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(4.7) and (6,10) find slope

hichkok12 [17]

Answer: $3/2$

<u>Use the slope formula</u>

$y_{2}-y_{1}/x_{2}-x_{1}$

$10-7/6-4$

$=3/2$

$(x_{1},y_{1} )=(4,7)\\(x_{2},y_{2} )=(6,10)$

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3 years ago

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Wrote a linear function f with the values f(-4)=0 and f(4)=2

LenKa [72]

Answer:

y = (1/4)x + 1

Step-by-step explanation:

The points mentioned are (-4,0) and (4,2).

We can find the slope m:

(2-0)/(4-(-4)) = 2/8 = 1/4

We now have the equation y = (1/4)x + b

Now we must find the y-intercept.

Plugging in the first point:

0 = (1/4)*(-4) + b

0 = -1 + b

1 = b

y = (1/4)x + 1

6 0

3 years ago

Which is a factor of 144 − 49x2? 12 - 7x2 72 – 7x2 12 – 7x 72 + 7x

Elena-2011 [213]

For this case we have the following expression:

$144 - 49x ^ 2$

We can rewrite the expression by factoring

Rewriting the expression we have:

$- (7x-12) (7x + 12)$

Then, using the distributive property for the negative sign we have:

$(12-7x) (7x + 12)$

Thus, we have that one of the factors of the given expression is:

12-7x

Answer:

A factor of the given expression is:

12-7x

option 3

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3 years ago

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