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4 years ago

Interquartile range of 6 26 27 28 29 30 32 36 38 40

Mathematics

1 answer:

geniusboy [140]4 years ago

7 0

The first quartile is 27 and the third is 36 you would subtract 36 - 27 = 9.

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I have a two expressions 3z-4 and 2z+5

aleksley [76]

Answer:

The answers are 3z-16 and 2z+10

Step-by-step explanation:

Do 3 x z (3z) and then do 3 x 4 (16) and then you got 3z-16

Do 2 x z (2z) and then do 2 x 5 (10) and then you got 2z + 10

6 0

4 years ago

How do I solve this equation: (3+2i)+(2+bi)=5-4i

oksian1 [2.3K]

$(3+2i)+(2+bi)=5-4i$

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3 years ago

The Hydro water department has a monthly service charge of $10.10 and a volume charge of $1.58 for every 100 cubic feet of water

cluponka [151]

Answer:

B. a decrease in their water bill of $3.16.

Step-by-step explanation:

Monthly service charge =$10.10

Volume charge = $1.58 for every 100 cubic feet of water.

Total monthly cost = 1.58x + 10.10

If the Johnson family used $200ft^3$ less water this month than last month, then they can expect a reduction in their bill by the Volume charge for $200ft^3$ .

Volume Charge per $100ft^3$ of water = $1.58

Therefore: Volume Charge for $200ft^3$ of water = 2 X $1.58=$3.16

Therefore, the Johnson family can expect a decrease in their water bill of $3.16.

3 0

3 years ago

What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−2/3x+5

swat32

Let $k:y=m_1x+b_1$ and $l:y=m_2x+b_2$

$l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}$

We have $y=-\dfrac{2}{3}x+5\to _1=-\dfrac{2}{3}$

Therefore

$m_2=-\dfrac{1}{-\frac{2}{3}}=\dfrac{3}{2}$

We have the equation of a line: $y=\dfrac{3}{2}x+b$ .

Put the coordinates of the point (8, 1) to the equation of a line:

$1=\dfrac{3}{2}(8)+b$

$1=(3)(4)+b$

$1=12+b$ <em>subtract 11 from both sides</em>

$-11=b\to b=-11$

Answer: $\boxed{y=\dfrac{3}{2}x-11}$

3 0

4 years ago

What is another name for the height of a prism or a pyramid

Tcecarenko [31]

Another name for the height of a prism is "Altitude."
~Silver

3 0

3 years ago

Read 2 more answers