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2 years ago

Help please no wrong answer

Mathematics

2 answers:

Reptile [31]2 years ago

8 0

3 to the 6th power the third one

butalik [34]2 years ago

4 0

Answer:

3 with the 6 on top

Step-by-step explanation:

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Refer to the various selling prices of various homes in a community that follow the normal distribution with mu (population mean

blsea [12.9K]

Answer:

0.43715

Step-by-step explanation:

We solve using z score calculator

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $276,000

σ is the population standard deviation = 32,000

For x = $276,000

z = 276,000 - 276,000/32000

z = 0

Probability value from Z-Table:

P(x = 276000) = 0.5

For x = $325,000

z = 325,000 - 276,000/32000

z = 1.53125

Probability value from Z-Table:

P(x = 325000) = 0.93715

The probability that the next house in the community will sell for between $276,000 and $325,000 is

P(x = 325000) - P(x = 276000)

= 0.93715 - 0.5

= 0.43715

8 0

2 years ago

How to do number 13 and 14

Murrr4er [49]

From the information: v is 64 while c is 5

Differentiate the new equation h=-16 $t^{2}$ + 64t + 5 to get $\frac{dh}{dt}$ = -32t + 64.

no 13). At maximum height this derivative equals zero so: -32t + 64 = 0; -32t = -64; t=2.Hence ans is 2 secs

no 14). put t as 2 sec in the equation: h=-16 $t^{2}$ + 64t + 5. This gives

h=-16( $2^{2}$ ) + 64(2) + 5; h=-64+128+5=69. Hence h is 69ft

7 0

3 years ago

Through: (-3,0), perp. to y = 3x - 1

Marrrta [24]

Answer:

$y=-\dfrac{1}{3}x-1$

Step-by-step explanation:

Given:

line y=3x-1

point (-3,0)

Write: equation of the line that is perpendicular to the given and passes through the point (-3,0)

Solution:

The slope of the given line is $m=3$

If $m_1$ is the slope of perpendicular line, then

$m\cdot m_1=-1\\ \\3m_1=-1\\ \\m_1=-\dfrac{1}{3}$

So, the equation of the needed line is $y=-\dfrac{1}{3}x+b.$

Find b. This line passes through the point (-3,0), so its coordinates satisfy the equation:

$0=-\dfrac{1}{3}\cdot (-3)+b\\ \\0=1+b\\ \\b=-1\\ \\y=-\dfrac{1}{3}x-1$

7 0

2 years ago

If ABCD is a parallelogram, what can we say about the diagonals BD and AC?

lidiya [134]

B. The diagonals bisect each other.

4 0

3 years ago

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What is the slope of the line in the graph below?

Advocard [28]

Answer:

Step-by-step explanation:

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5 0

2 years ago