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2 years ago

What is the correct way of doing N- (-15)= -1. In ALGEBRA 8?

Mathematics

1 answer:

dybincka [34]2 years ago

6 0

Answer:

i need help too

Step-by-step explanation:

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Which statement is true about the quadratic equation 8x2 – 5x + 3 = 0?

Artyom0805 [142]

Answer:

c. the leading coefficient is 8

Step-by-step explanation:

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3 years ago

Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which bestdescribes t

Katyanochek1 [597]

Discriminant Formula: b² - 4ac, with a = x^2 coefficient, b = x coefficient, and c = constant

So firstly, using our equation plug in the values into the discriminant formula and solve as such:

(-7)² - 4 × 3 × 4

49 - 48

So our discriminant is 1. Since 1 is positive and a perfect square, this means that there are 2 real, rational solutions.

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3 years ago

Help please integral of sqrt (x^2+6x) dx

s344n2d4d5 [400]

The integral of (x^2 + 6x)dx is 1/3x^3 + 3x^2 + c.
Because this is not an integration with specific bounds, you must include a constant at the end. In general, to integrate, add 1 to the exponent of x and then whatever number is the exponent of x, divided the number in front of x by that.

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3 years ago

Hey can you please help me posted picture of question

Aleksandr [31]

When the events are independent, the probability of both is the product of the probabilities of the individual events.
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3 years ago

Find the measure of.. (Image included) I'll take all the help I can get please :)

sergey [27]

Answer:

$\sf\Huge\boxed{C.40}$

Step-by-step explanation:

Hello There!

Remember: sum of interior angles of a triangle = 180

so to find x we use this equation

180 = 90 + 7x + 5 + 9x + 5 ( the little square in the triangle indicates that the angle is a right angle. right angles have a measure of 90 so that's where the 90 came from.)

now we solve for x

step 1 combine like terms

90 + 5 + 5 = 100

7x + 9x = 16x

now we have 180 = 16x + 100

step 2 subtract 100 from each side

180 - 100 = 80

100 - 100 cancels out

now we have 80 = 16x

step 3 divide each side by 16

80/16 = 5

16x/16=x

we're left with x = 5

Finally we plug in 5 into x for angle a

7(5)+5

7*5=35

35+5=40

so we can conclude that the measure of angle A is 40 degrees

4 0

2 years ago