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3 years ago

(1) How many hours are in 34.5 year?

Mathematics

2 answers:

Alex787 [66]3 years ago

5 0

1 year have <span>8760 hours。
So, 34.5 years have 8760x34.5=</span>302220 hours.
That's your answer.

Elenna [48]3 years ago

4 0

If there are 24 hours in one day and 365 days in one year, we can do 365*24 to find the amount of hours per year to be 8,760. Then we can multiply 8,760 by 34.5 to find that there are 302,220

Hope this helps

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If using the method of completing the square to solve the quadratic equation x2 - 6x – 7 = 0, which number would have to be adde

Vanyuwa [196]

Answer:

(-3)^2

Step-by-step explanation:

You add 7 on both sides, giving you x^2 - 6x = 7

Then, take half of b, and square it. Giving you x^2 - 6x +(-3)^2 = 7

The answer will be (-3)^2 for this question, but this is not the full solution.

Hope this helped. Good luck on the rest!

3 0

3 years ago

Let a,b,c ∈ Z. Define the highest common factor hcf(a,b,c) to be the largest positive integer that divides a,b and c. Prove that

kakasveta [241]

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3 years ago

write the equation of the parabola and a vertex form and standard form given the following information

beks73 [17]

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

(9)

Here (h, k) = (3, - 2), thus

y = a(x - 3)² - 2

To find a substitute (2, 3) into the equation

3 = a(2 - 3)² - 2 ( add 2 to both sides )

5 = a(- 1)² = a , then

y = 5(x - 3)² - 2 ← in vertex form

y = 5(x² - 6x + 9) - 2

= 5x² - 30x + 45 - 2

y = 5x² - 30x + 43 ← in standard form

(10)

Here (h, k) = (2, - 5), thus

y = a(x - 2)² - 5

To find a substitute (5, 4) into the equation

4 = a(5 - 2)² - 5 ( add 5 to both sides )

9 = a(- 3)² = 9a ( divide both sides by 9 )

a = 1

y = (x - 2)² - 5 ← in vertex form

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4 0

3 years ago

Read 2 more answers

HELP WHAT IS THE SLOPE!!!!!!

fiasKO [112]

Answer:

1.5 is the slope of the graph.

Step-by-step explanation:

slope of the graph :-

=》

$\frac{y2 - y1}{x2 - x1}$

=》

$\frac{50 - 20}{20 - 0}$

( by taking coordinates, (20,50) and (0,20) )

=》

$\frac{30}{20}$

=》

$\frac{3}{2}$

=》

$1.5$

3 0

3 years ago

Use the distributive property to show why the product (-6)(-3) is positive .

Alla [95]

Porque menos por menos es más es una regla

Si multiplicas (-6)(-3) La respuesta es 18 es positivo porque se cumple la regla de menos por menos es más

REPASA

MENOS POR MENOS = MÁS

MÁS POR MÁS = MÁS

MAS POR MENOS = MENOS

MENOS POR MAS = MENOS

3 0

3 years ago