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2 years ago

Can someone please answer this question please answer it correctly and please show work please help me I need it

Mathematics

1 answer:

vaieri [72.5K]2 years ago

3 0

Answer:

Step-by-step explanation:

Lets find the values:

Gained 2.2 kg = 2.2

Lost 1.5 kg = (-1.5)

Lost 3.7 kg = (-3.7)

Adding these would be represented by the equation:

2.2 + (-1.5) + (-3.7) = ?

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Answer:

Step-by-step explanation:

64 spaces. 18 empty

64 - 18 = 46

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2 years ago

One line passes through the points \blueD{(-3,-1)}(−3,−1)start color #11accd, (, minus, 3, comma, minus, 1, ), end color #11accd

mart [117]

Answer:

The lines are perpendicular

Step-by-step explanation:

we know that

If two lines are parallel, then their slopes are the same

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

Remember that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Find the slope of the first line

we have the points

(-3,-1) and (1,-9)

substitute in the formula

$m_1=\frac{-9+1}{1+3}$

$m_1=\frac{-8}{4}$

$m_1=-2$

Find the slope of the second line

we have the points

(1,4) and (5,6)

substitute in the formula

$m_2=\frac{6-4}{5-1}$

$m_2=\frac{2}{4}$

Simplify

$m_2=\frac{1}{2}$

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$m_2=\frac{1}{2}$

Find out the product

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therefore

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8 0

2 years ago

Read 2 more answers

For males in a certain town, the systolic blood pressure is normally distributed with a

GREYUIT [131]

Answer:

99.7%

Step-by-step explanation:

Note that 92 and 128 are 3 standard deviations from the mean

The emperical rule or the 68–95–99.7 rule states that 68% of outcomes are wihtin 1 standard deviation from the mean

95% of outcomes are within 2 standard deviations from the mean

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This is 3 standard deviations so the answer is 99.7

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2 years ago

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Reika [66]

Answer:

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Step-by-step explanation:

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1 year ago

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A runner passes the 12-mi point after 2 hours and reaches the 15-mi point 30 minutes later. Assuming a constant rate, find th

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Answer:

6 mph

Step-by-step explanation:

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time taken

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= 1/2 hour

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2 years ago