ComeQuestion 14
8.0 x105 +6.0 x107 =
A
14,000,000,000,000
B
140,000,000
с
60,800,000
D
68,000,000

Answers

Answer 1

Answer:

Answer:

с 60,800,000

Step-by-step explanation:

Any scientific or graphing calculator can evaluate this expression for you.

When adding numbers in scientific notation, they need to have the same multiplier exponent. Here, it is convenient to use 10^6:

8.0×10^5 = 0.8×10^6

6.0×10^7 = 60×10^6

Then the sum is ...

(0.8 +60)×10^6 = 60.8×10^6 = 60,800,000

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3x-165=7x=105
What is x?

Answers

Answer:

tutoring is available right now

Which polynomials are prime? Check all of the boxes that apply.x² +9
x²_9
x2 + 3x + 9
-2x² +8

Answers

Final answer:

A polynomial is prime if it cannot be factored into polynomials of lower degree. In this case, x² +9 and x² + 3x + 9 are prime polynomials while x² -9 and -2x² +8 are not.

Explanation:

In mathematics, a polynomial is said to be prime if it cannot be factored into polynomials of lower degree, at least one of which must be non-constant. To determine if a polynomial is prime, we try to factor it. In our case:

x² +9 is a prime polynomial because it is a sum of squares and cannot be factored into real polynomials of lower degree.
x² -9 is not a prime polynomial because it can be factored into (x-3)(x+3).
x² + 3x + 9 is a prime polynomial because it cannot be factored into real polynomials of lower degree.
-2x² +8 is not a prime polynomial as it can be factored into -2(x²-4).

Learn more about Prime Polynomials here:

brainly.com/question/17489661

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Answer: x^2+9 and x^2+3x+9

Step-by-step explanation:

a model rocket is launched from a roof into a large field the path of the rocket can be modeled by the equation y equals -0.04 ^ 2 + 8.3 x + 4.3 where X is the horizontal distance in meters from the starting point on the roof and why is the height in meters of the rocket above the ground how far horizontally from its starting point will the rocket land round your answer to the nearest hundredth meter

Answers

Answer:

208.02 m

Explanation:

When the model rocket lands, y = 0; therefore, the equation becomes

$-0.04x^2+8.3x+4.3=0$

Using the quadratic formula we solve for x.

$x=\frac{-8.3\pm\sqrt[]{8.3^2-4(-0.04)(4.3)}}{2(-0.04)}$

Which simplifies to give

$x=\frac{-8.3\pm\sqrt[]{69.578}}{(-0.08)}$

Hence, we have the solutions

$\begin{gathered} x=208.02 \n x=-0.52 \end{gathered}$

since lengths cannot be negative, we choose x = 208.02 as our answer.

Hence, the model rocket lands 208.02 m from the starting point.

Find the GCF of the set of numbers 12 30

Answers

Answer:

D. 6

Step-by-step explanation:

GCF means greatest common factor, so if you test out all of the answers, the factors you come up with is 2 and 6. Since 6 is larger, that is your answer.

Answer: the answer is 6

Step-by-step explanation:

Square root of -61 to the nearest tenth

Answers

Answer:

7.8 i

Step-by-step explanation:

Since -61 is negative, you simply do the square root of positive 61 and add an i (imaginary) so signify that it's negative.

To save money you set aside $50. For each following month you set aside 10% more than the previous month.How much money will you save in a year? Explain each step.