3 years ago

Write the equation of the line that passes through the given point and is perpendicular to the given line (-6,-3);y=-2/5x

Mathematics

1 answer:

Paladinen [302]3 years ago

6 0

Answer:

5x-3y+36=0

Step-by-step explanation:

ME TrYINg

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The age of trees in a forest is known to be approximately normal with an average age of 40 years and a standard deviation of 10

Keith_Richards [23]

Answer: D. -0.6

Step-by-step explanation:

Z score formula= x-mean/ SD

34-40/10= -3/5= -0.6

6 0

3 years ago

For breakfast, Mrs. Ryan bought a cup of coffee for $2.18 and a pastry for $1.65. How much change will she get back from $5.00?

Tom [10]

Answer:

1.17

Step-by-step explanation:

5-(2.18+1.65)

5 0

2 years ago

A student wants to estimate the mean score of all college students for a particular exam. First use the range rule of thumb to m

Wewaii [24]

Answer:

See explanation below

<u>Step-by-step explanation:</u>

range = 2200 - 300 = 1900

To find standard deviation, we have:

standard deviation = range/4 = $\frac{1900}{4}$ = 475

The range rule of thumb estimate for the standard deviation is 475

Given:

Standard deviation, $\sigma$ = 475

Margin of Error, ME = 100

$\alpha$ = 1 - 0.90 = 0.10

Za/2 = Z0.05 = 1.64

Find sample size, n:

n ≥ $[Z_\alpha_/_2 * (\frac{\sigma}{ME})]^2$

n ≥ $[1.64 * (\frac{475}{100})]^2$

n ≥ 60.68

≈ 61

Minimun sample size,n = 61

5 0

3 years ago

there are 39 members in a marching band for a food drive each member must bring 3 cans of fruit and 5 cans of soup how many cans

bonufazy [111]

The Answer is 312 -- this is because, as we want know the total amount of cans, you add 5 + 3 which gives you 8.yoy can then times that by the members (39) to give you 312 which is the total

7 0

3 years ago

if a cell phone provider offers a plan that costs $20 per month plus $0.10 text messages sent or received a comparable plan cost

ruslelena [56]

Answer: You would have to send 300 text messages

Step-by-step explanation:

1. Turn problem into 20 + 0.10x = 50

2. Subtract 20 from both sides to get 0.10x = 30

3. Divide both sides by 0.10 to get x = 300

4 0

3 years ago