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Nataly [62]
3 years ago
12

8. Mario walks 7 blocks from his home to

Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0
I believe the answer is 2. i hope this helps
lozanna [386]3 years ago
5 0

Answer:

2 Blocks from his house

Step-by-step explanation:

Mario walks <u>7 blocks</u> from his home

0+7

to a restaurant. He then walks back toward home for <u>five blocks</u>, where he stops at a bookstore. How many blocks is Mario from his home?

0+7= 7

7-5= 2 Blocks

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The sun appears to move across the sky, because the earth spins on its axis. To a person standing on the earth, the sun subtends
Liono4ka [1.6K]

Answer:

128 seconds

Step-by-step explanation:

The sun subtends an angle \theta=9.28\times10^{-3} rad

Angular velocity equation is \omega = \frac{\theta}{t}

where \omega is angular velocity and t is time.

Earth spins at a rate of :

\omega = \frac{2 \pi rad}{24 h \times \frac{3600 s}{1 h}} = 7.27221\times10^{-5}  rad/s

Isolating time (t) from angular velocity equation gives:

\omega = \frac{\theta}{t}

t = \frac{\theta}{\omega}

t = \frac{9.28\times10^{-3}}{7.27221\times10^{-5}}

t = 128 s

8 0
3 years ago
Assume the exponential growth model ​A(t)equals=Upper A 0 e Superscript ktA0ekt and a world population of 5.95.9 billion in 2006
Whitepunk [10]

Answer:

1.4% is the maximum acceptable annual rate of​ growth such that the population must stay below 24 billion during the next 100​ years.

Step-by-step explanation:

We are given the following in the question:

The exponential growth model ​is given by:

A(t) = A_0e^{kt}

where k is the growth rate, t is time in years and A_0 is constant.

The world population is 5.9 billion in 2006.

Thus, t = 0 for 2006

A_0 = 5.9\text{ billions}

We have to find the maximum acceptable annual rate of​ growth such that the population must stay below 24 billion during the next 100​ years.

Putting these values in the growth model, we have,

24 = 5.9e^{100k}\\\\k = \dfrac{1}{100}\ln \bigg(\dfrac{24}{5.9}\bigg)\\\\k = 0.01403\\k = 0.01403\times 100\% = 1.4\%

1.4% is the maximum acceptable annual rate of​ growth such that the population must stay below 24 billion during the next 100​ years.

8 0
2 years ago
Find the zeros of the function. Enter the solutions from least to greatest.
Harman [31]

9514 1404 393

Answer:

  x = 5, x = 11

Step-by-step explanation:

Set f(x) = 0 and solve for x.

  0 = (x -8)² -9

  9 = (x -8)² . . . . . add 9

  ±√9 = x -8 . . . . . take the square root

  ±3 +8 = x . . . . . . . add 8

That is, ...

  x = 8 -3 = 5 . . . . lesser x

  x = 8 +3 = 11 . . . greater x

3 0
2 years ago
If cos(x) = Three-fourths and tan(x) &lt; 0, what is cos(2x)?
makvit [3.9K]

Step-by-step explanation:

The value of sin(2x) is \sin(2x) = - \frac{\sqrt{15}}{8}sin(2x)=−

8

15

How to determine the value of sin(2x)

The cosine ratio is given as:

\cos(x) = -\frac 14cos(x)=−

4

1

Calculate sine(x) using the following identity equation

\sin^2(x) + \cos^2(x) = 1sin

2

(x)+cos

2

(x)=1

So we have:

\sin^2(x) + (1/4)^2 = 1sin

2

(x)+(1/4)

2

=1

\sin^2(x) + 1/16= 1sin

2

(x)+1/16=1

Subtract 1/16 from both sides

\sin^2(x) = 15/16sin

2

(x)=15/16

Take the square root of both sides

\sin(x) = \pm \sqrt{15/16

Given that

tan(x) < 0

It means that:

sin(x) < 0

So, we have:

\sin(x) = -\sqrt{15/16

Simplify

\sin(x) = \sqrt{15}/4sin(x)=

15

/4

sin(2x) is then calculated as:

\sin(2x) = 2\sin(x)\cos(x)sin(2x)=2sin(x)cos(x)

So, we have:

\sin(2x) = -2 * \frac{\sqrt{15}}{4} * \frac 14sin(2x)=−2∗

4

15

∗

4

1

This gives

\sin(2x) = - \frac{\sqrt{15}}{8}sin(2x)=−

8

15

6 0
2 years ago
Read 2 more answers
Talk to me /:<br> pleases
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Answer:

5

Step-by-step explanation:

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5 0
2 years ago
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