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solmaris [256]
3 years ago
8

For what values of them will the expression below be a perfect square? 9x^2+30x+m

Mathematics
1 answer:
matrenka [14]3 years ago
4 0
I am so so so sorry I do not know the answer but I might later in the shool year
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You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as
Lesechka [4]

The correct question is;

You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as a fraction or percent. If necessary round your answer to the nearest hundredth. Find the probability of spinning an odd number, flipping heads, then spinning another odd number? Write your answer as a fraction in simplest form.

Answer:

If the spinner has an even number of spaces, the probability of spinning an odd number, flipping heads, then spinning a yellow is = 1/8

Whereas, if the spinner has an odd number of spaces, more information is needed

Step-by-step explanation:

The answer will depend on whether the spinner has an odd or even number of spaces.

Now, if we suppose that the spinner has an even amount of numbers on it, there will be an equal number of odd and even numbers.

Thus the probability of spinning an odd number is ½.

Also, the probability of flipping heads on a coin is ½.

Thus, the probability of spinning an odd number, flipping heads, then spinning another odd number is;

= ½ × ½ × ½ = ⅛

Similarly,

If the spinner has an odd amount of numbers on it, the probability of spinning an odd number will vary. For instance, if there are 5 spaces on the spinner, the probability of spinning an odd number will be

3

However, if there are 9 spaces, the probability will be 5/9

So,we can conclude that;

If the spinner has an even number of spaces, the probability of spinning an odd number, flipping heads, then spinning a yellow is = 1/8

Whereas, if the spinner has an odd number of spaces, more information is needed.

6 0
3 years ago
The equation of the graphed line is 2x-3y=12 what is the x-intercept of the graph ?
Natali [406]

Answer:

(6,0)

Step-by-step explanation:

7 0
3 years ago
BC -<br> Round your answer to the nearest hundredth.<br> B<br> ?<br> 35<br> A<br> с<br> 2.
mario62 [17]

Answer:

BC ≈ 1.40

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

<u>Step 1: Identify</u>

Angle θ = 35°

Opposite Leg BC = <em>x</em>

Adjacent Leg AC = 2

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute [Tangent]:                    tan35° = x/2
  2. Isolate <em>x</em>:                                        2tan35° = x
  3. Rewrite:                                          x = 2tan35°
  4. Evaluate:                                        x = 1.40042
  5. Round:                                            x ≈ 1.40
4 0
3 years ago
Read 2 more answers
write a expression that represents the height of a tree that begins at 8 feet and increases by 2 feet per year. Let t represent
lyudmila [28]

Answer:

8 + 2t

In five years, 18 feet

8 0
3 years ago
Read 2 more answers
What does find the constant rate of change mean?
natulia [17]

The change of the cost changes when the pounds of ham changes. When the pounds of ham is 0, it costs 0 dollars. When the pounds of ham is 3, it costs 12 dollars. The cost changes consistently with the pounds of ham. They change together. Every time the pounds of ham goes up by 3, the cost goes up by 12.

7 0
3 years ago
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