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2 years ago

Can someone help me with this

Mathematics

2 answers:

viktelen [127]2 years ago

6 0

Answer:

For number 7 I think it is B

For number 8 it will be positive 3 (on the right) and -3 (on the left).

Step-by-step explanation:

Hope this helps :)

Have a Great Day!

schepotkina [342]2 years ago

3 0

i’m not 100% sure but i think that it is d

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A train leaves Boston at noon going to NYC at a speed of 60 mph. Two hours later, an express train leaves NYC going to Boston at

lana66690 [7]

Train A: Speed of 60 mph. (1 mile per minute)

Train B: Speed of 90 mph. (1.5 miles per minute)

after 2 hours: (2:00)

Train A has gone 120 miles. (half-way mark)

Train B has gone 0 miles.

Hour 2:48: (2:48)

Train A has gone 168 miles.

Train B has gone 72 miles.

72 ----><---------------168

At 2:48 P.M the two will meet. 72+168=240

I hope this helps! :)

4 0

2 years ago

What is 0.5, three sixteenths, 0.75, and five and forty eighths in order from least to greatest

butalik [34]

I'm just estimating here,
5/48,3/16,0.5,0.75

8 0

3 years ago

Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B24%20%5Ctimes%205%20%2B%201%7D%20" id="

Orlov [11]

Answer:

your answer will be 11

Step-by-step explanation:

Thanks again!!

4 0

3 years ago

Read 2 more answers

Trigonometry question! find the vaule of x. round to the nearest tenth!

atroni [7]

Answer:

Step-by-step explanation:

Look at the picture.

Use tangent:

$tangent=\dfrac{opposite}{adjacent}$

We have a measure of the angle and length of the adjacent:

$\alpha=10^o,\ adjacent=500$

$\tan10^o\approx0.17633$

Substitute:

$\dfrac{x}{500}=0.17633$ <em>multiply both sides by 500</em>

$x=88.165\to x=88.2$

8 0

2 years ago

Review the table.

Lynna [10]

Answer:

The function that models the scenario is given as follows;

$P(t) = \dfrac{500}{1 + 49 \cdot e^{-0.5 \cdot t}}$

Step-by-step explanation:

The table of values are presented as follows;

The number of days, t, since the rumor started: 0, 1, 2, 3, 4, 5

The number of people, P, hearing the rumor: 10, 16, 26, 42, 66, 100

Imputing the given functions from the options into Microsoft Excel, and

$A = P(t) = \dfrac{250}{1 + 24 \cdot e^{-0.5 \cdot t}}$

$B = P(t) = \dfrac{500}{1 + 49 \cdot e^{-0.5 \cdot t}}$

$C = P(t) = \dfrac{750}{1 + 74 \cdot e^{-0.5 \cdot t}}$

$D = P(t) = \dfrac{1000}{1 + 99 \cdot e^{-0.5 \cdot t}}$

solving using the given values of the variable, t, we have;

P t A B ${}$ C D

10 ${}$ 0 ${}$ 10 ${}$ 10 ${}$ 10 ${}$ 10

16 ${}$ 1 ${}$ 16.07021 16.27604 16.34583 ${}$ 16.38095

26 ${}$ 2 ${}$ 25.43466 26.2797 26.574 26.72363

42 ${}$ 3 ${}$ 39.33834 41.89929 42.82868 43.30901

66 ${}$ 4 ${}$ 58.85058 65.51853 68.09014 69.45316

100 ${}$ 5 ${}$ 84.17395 99.55866 106.0177 109.5721

Therefore, by comparison, the function represented by $B = P(t) = \dfrac{500}{1 + 49 \cdot e^{-0.5 \cdot t}}$ most accurately models the scenario.

7 0

3 years ago

Read 2 more answers