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larisa86 [58]
3 years ago
13

Help! is it a or b?

Mathematics
1 answer:
Yuri [45]3 years ago
7 0
All real numbers satisfy the equation, try plugging in a number into x and you'll find out
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Find the value of x in the triangle shown below
JulijaS [17]

Answer:

x = 3

Step-by-step explanation:

we can use the Pythagorean theorem to solve this problem

x^2 + 4^2 = 5^2

x^2 + 16 = 25

x^2 = 9

x = +/- 3

we take only the positive value because a length can‘t be negative

x = 3

5 0
3 years ago
What is 3divided by 1000 divided by5
Tanzania [10]
0.0006 would be your answer based on the order you put them in.
6 0
3 years ago
What is the product? (9t − 4)(−9t − 4) −81t2 − 16 −81t2 16 −81t2 − 72t 16 −81t2 72t 16
Alexxandr [17]
<span>We have to find the product : ( 9 t - 4 ) ( - 9 t - 4 ) = - ( 9 t - 4 ) ( 9 t + 4 ) After that we can use the difference of squares. The formula is: ( a + b ) ( a - b ) = a^2 - b^2. In this case: - ( 9 t - 4 ) ( 9 t + 4 ) = - ( 81 t^2 - 16 ) = - 81 t^2 + 16 . Answer: B ) - 81 t^2 + 16.</span>
5 0
3 years ago
The probability of spinning a 4 on a spinner is 0.125.If you spun 150 times approximately how many times would the spinner land
Ksivusya [100]

Answer:

19

Step-by-step explanation:

To calculate this, all we need to do is 150 * 0.125 ≈ 18.75 which rounds to 19. We round to the nearest integer because you can't land on the 4 18.75 times.

6 0
3 years ago
Read 2 more answers
Prove that if one solution for a quadratic equation of the form x 2 + bx + c = 0 is rational (where b and c are rational), then
erica [24]
x^2+bx+c = (x-r)(x-s)\\&#10;x^2+bx+c = x^2-(r+s)x+rs\\\\&#10;b = -(r+s)\\ c = rs

Say r is rational. Suppose for a second, that s is not. Then, r+s is irrational. But this contradicts the fact that b is rational.

So, if one root is rational, then the other root is also rational
7 0
3 years ago
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