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3 years ago

The data and evidence from the experiment is used to determine if the hypothesis is

Mathematics

1 answer:

vladimir2022 [97]3 years ago

5 0

Correct or incorrect

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What are the values of a and b in the equation

Nat2105 [25]

Answer:

a= -2 b =4

Step-by-step explanation:

I put it in a calculator and found the answer

5 0

3 years ago

A) how many men have a waist measurement of more than 85 cm

KATRIN_1 [288]

Answer:

(a)29

(b)91cm

Step-by-step explanation:

(a)From the graph, 11 men have a waist measurement of 85cm and below.

Since the cumulative frequency is 40

Number of men who have a waist measurement of more than 85 cm

$=40-11\\=29$

(b)Median

$\text{Median}=\dfrac{N}{2}\\N=40\\Median=\dfrac{40}{2}=20th$ item$

Tracing 20 from the y-axis to the x-axis, the median waist measurement is 91cm.

(c)Interquartile Range

Interquartile Range = $Q_3-Q_1$

$Q_1=\dfrac{N}{4}=\dfrac{40}{4}=10th$ item$

From the graph, at y=10, x=84 cm

$Q_3=\dfrac{3N}{4}=\dfrac{3*40}{4}=30th$ item$

From the graph, at y=30, x=97 cm

Therefore:

Interquartile Range=97-84=13cm

5 0

3 years ago

Solve the system by the addition method.

Xelga [282]

The answer is the 2nd circle

3 0

4 years ago

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George drew a line on a coordinate system by starting at (0,-5), then moved 2 units to the right and 1 unit up to locate each ne

faltersainse [42]

Answer:

y = 1/2x - 5

Step-by-step explanation:

I'm going to use slope-intercept form. Your y-intercept is already shown when x is zero, which is (0,-5). Your slope is defined as rise over run, so 1/2 in this case. This gives you an equation of f(x) = 1/2x-5

8 0

3 years ago

Which is the equation of a line perpendicular to the line with the equation 3x+4y=7

Gemiola [76]

Answer:

Any line with the slope of 4/3 would be perpendicular.

Step-by-step explanation:

To find this, first solve the equation for y.

3x + 4y = 7

4y = -3x + 7

y = -3/4x + 7/4

Perpendicular lines always have opposite and reciprocal slopes. Therefore, we flip the slope in the original equation (-3/4 becomes -4/3) and then we change the sign (-4/3 becomes 4/3)

3 0

4 years ago

Read 2 more answers