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3 years ago

Which of the following best defines 2 to the second power / 3

Mathematics

1 answer:

tresset_1 [31]3 years ago

5 0

Answer:

2×2=4

Step-by-step explanation:

Multiplying by powers is the same as multiplying one number by itself

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(30 POINTS!!!) One press can run the day’s newspapers in 6 hours, while another can do the same job in 8 hours. After running to

mr_godi [17]

Amount of the job done after 2 hours:

2(1/6 + 1/8)

2(4/24 + 3/24)

2(7/24)

7/12 (amount of job finished)

amount of job left to do:

1 - 7/12

12/12 - 7/12

5/12 (remaining)

Let x = time (hours) slower press takes to finish job

then

x(1/6) = 5/12

multiplying both sides by 6:

x = 5/12 *6

x = 5/2 hours

x = 2 hours and 30 minutes

The slower press (8-hour press), will take h 3 hours, 20 minutes to complete the job

8 0

3 years ago

Which equation written in two variables is equivalent to the function: f(x)=-2(x-4)<br><br>y=-2(x-4)

artcher [175]

Answer:

Step-by-step explanation:

5 0

3 years ago

How many zeroes are in the product of

otez555 [7]

Answer:

C.8 is my answers of the many zeros in the product of 40

7 0

3 years ago

45% of the students at Mannion Middle School walk to school. If 234 students walk to school, how many students are at Mannion Mi

Kazeer [188]

Answer:

520

Step-by-step explanation:

234=45%

26=5%

100/5=20

20X26=520

6 0

2 years ago

Read 2 more answers

Between which two ordered pairs does the graph of f(x) = one-halfx2 + x – 9 cross the negative x-axis?

Doss [256]

None of Option are correct

Step-by-step explanation:

The Given function is f(x) = y = $\frac{1}{2} x^{2} + x -9$

Here, f(x) is quadratic function and it asked that when function cross the Negative X-axis.

If any function cross the X-axis then, Point of intersection will have y component as zero.

Therefore, f(x) = y = $\frac{1}{2} x^{2} + x -9$

y = $\frac{1}{2} x^{2} + x -9 = 0$

Solving quadratric equation,

Comparing with $ax^{2} + bx + c= 0$

We get a= $\frac{1}{2}$ , b=1, c=(-9)

Since,

$x=\frac{-b+\sqrt{b^{2}-4ac } }{2a}$

$x=\frac{- 1+\sqrt{(1)^{2}-4(\frac{1}{2})(-9) }}{2(\frac{1}{2})}$

$x=\frac{-1+\sqrt{1+(2)(9)}}{1}$

$x=\frac{-1+\sqrt{19}}{1}$

$x=-1+\sqrt{19}and x=-1-\sqrt{19}$

Thus, None of option are correct.

Verification.....

A) (–6, 0) and (–5, 0) give quadratic function : y = $x^{2} + 11x +30$

B) (–4, 0) and (–3, 0) give quadratic function : y = $x^{2} + 7x +12$

C) (–3, 0) and (–2, 0) give quadraric function : y = $x^{2} + 5x +6$

D) (–2, 0) and (–1, 0) give quadratic function : y = $x^{2} + 3x +2$

3 0

3 years ago

Read 2 more answers