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2 years ago

Which of the following statements about time zones is true?

Mathematics

2 answers:

liraira [26]2 years ago

5 0

Answer:

Step-by-step explanation:

i did the work

andrew-mc [135]2 years ago

3 0

Answer:

B. Time zones sometimes follow the borders of countries

Step-by-step explanation:

i did the question myself.

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Let b be a number such that (2b+5)(b-1)=6b. What is the largest possible value of b? Express your answer as a common fraction.

Oksi-84 [34.3K]

Answer:

Foil the expression and solve the derivative with respect to b at f'(x)=0 $2b^2+3b+5=6b\\d/dx(2b^2+9b+5=0)\\4b+9=0\\b=-9/4$

Step-by-step explanation:

4 0

3 years ago

HELP ASAP GIVING BRAINLIEST

Alborosie

Hey sorry if I’m wrong but I think it is the 665 sorry if I’m wrong let me know

8 0

3 years ago

Read 2 more answers

H function is even, odd, or neither. b. g(x) = x² - 2 Is it odd or even

o-na [289]

$g(x) = x^2 - 2 \text{ is even function }$

Solution:

Given that,

$g(x) = x^2 - 2$

We have to find whether the above function is odd or even

If a function is: y = f(x)

If f(-x) = f(x), the function is even

If f(-x) = - f(x), the function is odd

Which is,

$\mathrm{Even\:Function:\:\:A\:function\:is\:even\:if\:}f\left(-x\right)=f\left(x\right)\mathrm{\:for\:all\:}x\in \mathbb{R}\\\\\mathrm{Odd\:Function:\:\:A\:function\:is\:odd\:if\:}f\left(-x\right)=-f\left(x\right)\mathrm{\:for\:all\:}x\in \mathbb{R}$

From given,

$g(x) = x^2 - 2$

Replace x with -x

$g(-x) = (-x)^2 - 2\\\\g(-x) = x^2 - 2$

Therefore,

$g(x) = g(-x)$

Thus the function g(x) is even

4 0

3 years ago

Solve for x. 4(x−214)=−3.7 Enter your answer as a decimal in the box. x =

andre [41]

X = 213.075
First you have to get rid of the 4 and since it’s multiplying you to the opposite and that’s dividing.
-3.7 divided by 4 = -0.925
X - 214 = -0. 925
Then you add 214 to -0.925 and get 213.075

7 0

3 years ago

Using the formula r=d/t where d is the distance in miles, r is the rate and t is the time in hours at which rate must you travel

valentina_108 [34]

$r = \frac{337.5}{4.5} \\ r = 75$
the answer is c-75mph

6 0

3 years ago

Read 2 more answers