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2 years ago

Which type of display best shows a change over time? A. Stem-and-leaf plot B. Histogram C. Line Graph D. Cumulative frequency

Mathematics

2 answers:

Rainbow [258]2 years ago

7 0

Answer:

the answer is c:

liubo4ka [24]2 years ago

4 0

C. line graph hope this helps

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An oil exploration firm is formed with enough capital to finance ten explorations. The probabil- ity of a particular exploration

tensa zangetsu [6.8K]

Answer:

μ = 1 The firm expects that one oil exploration will be successful.

v(x)= 0.9

Step-by-step explanation:

The first step is to define the random variable x as:

x: number of oil explorations being succesful

Then x can be take this values:

x = 0 , x =1 ... x =10

x is a binomially distributed random variable with parameters.

p = 0.1 and n=10

And the mean or the expected value of x is:

μ = E(x) = np

Then μ = 10*0.1 = 1

And the variance of x is:

V(x) = np(1-p)

V(x) = 10(0.1)(1-0.1)= 0.9

6 0

2 years ago

He short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than an unknown number of inches

goldenfox [79]

The sum of two adjacent sides is 11 inches, so the long sides are 9 inches. The "unknown number" must be 12.

7 0

3 years ago

Y= sqrt(8 x^3 as it reaches the point (2, 4, the y-coordinate is increasing at a rate of 5 cm/s. how fast is the x-coordinate of

AysviL [449]

Y = √8x³

dy/dt = 2√2 * 3/2 * √x * dx/dt
⇒ 5 = 2√2 * 3/2 * √2 * dx/dt
⇒ 5 = 6 dx/dt
⇒dx/dt = 5/6 cm/s

x coordinate is changing at 5/6 cm/s

Hope it helps!

6 0

3 years ago

Write the equation in slope-intercept form of the line that includes the point (3,2) and has a slope of 4/3.

UkoKoshka [18]

Answer:

$y = \frac{4}{3}x - 2$

Step-by-step explanation:

Given:

Slope (m) = ⁴/3

Point on the line = (x, y) = (3, 2)

Required:

Write the equation in slope-intercept form which is y = mx + b

Solution:

Since we know the slope(m), we need to find the y-intercept (b).

This, substitute (x, y) = (3, 2) and m = ⁴/3 into y = mx + b, and solve for b. Thus:

2 = ⁴/3(3) + b

2 = 4 + b

2 - 4 = b

-2 = b

b = -2

To write the equation, substitute m = ⁴/3 and b = -2 into y = mx + b

$y = \frac{4}{3}x - 2$

4 0

2 years ago

Please answer this questions please. Will mark brainliest!!! The one with red circled.

patriot [66]

Answer/Step-by-step explanation:

1.a)(iv). $\frac{1}{6} + (-\frac{7}{8}$

Positive multiplied by negative = negative

$\frac{1}{6} - \frac{7}{8}$

$\frac{4 - 21}{24} = \frac{-17}{24} = -\frac{17}{24}$

2a.) 73.48 +(-37.3)

$Note: + * - = -$

73.48 - 37.3 = 36.18

3c.) $3\frac{3}{4}$ ÷ $(-4\frac{2}{7})$

Convert to proper fraction

$\frac{15}{4}$ ÷ $(-\frac{30}{7})$

Change ÷ to × and flip the fraction on your right upside down

$\frac{15}{4} * (-\frac{7}{30})$

$-\frac{15*7}{4*30}$

$-\frac{1*7}{4*2} = -\frac{7}{8}$

3d.) -52.25 ÷ (-5.5) = $\frac{-52.25}{-5.5}$

(Note: - ÷ - = + )

$\frac{-52.25}{-5.5} = 9.5$

3 0

3 years ago