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3 years ago

Find 2 numbers with a sum of 46 and a product of 408

Mathematics

1 answer:

Firlakuza [10]3 years ago

4 0

Answer:

12 and 34

Step-by-step explanation:

Start with the bigger numbre of 408. Divide by several numbers, tending to range from 10 and up. I divided by 12 which gave me the answer of 34. Taking that answer, I added 12 which gave me the sum of 46.

Thus, adding 12 and 34 would give my 46 and multiplying them would give me 408.

Hope this helps!

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The line y=-3 is what I need help

Stolb23 [73]

Answer:

Look at the attachment below :)

Step-by-step explanation:

When we are given just a X or a Y coordinate, we just graph that. In this example, y will always be -3 and x will be anything so its a straight line.

3 0

4 years ago

The mean weight of five complete computer stations is 167.2 pounds. The weights of four of the computer stations are 158.4 pound

Lynna [10]

The mean weight of five complete computer stations is 167.2 pounds.

The weights of four of the computer stations are 158.4 pounds, 162.8 pounds, 165 pounds, and 178.2 pounds.

We have to determine the weight of fifth computer station.

Let the weight of fifth computer station be 'x' pounds.

Mean is calculated by sum of all the observations divided by the total number of observations.

So, $\frac{158.4+162.8+165+178.2+x}{5}=167.2$

$\frac{664.4+x}{5}=167.2$

${664.4+x}=167.2 \times 5$

${664.4+x}=836$

x= 171.6 pounds

The weight of fifth computer station is 171.6 pounds.

3 0

3 years ago

Read 2 more answers

"Sonia had band practice 2 _1/3 hours on Saturday and 1_3/4 hours on Monday. How many total

bagirrra123 [75]

Answer:

3_5/6 hours

Step-by-step explanation:

2_4/12 + 1_6/12 = 3_10/12

3_10/12 = 3_5/6

4 0

3 years ago

An observation from a normally distributed population is considered "unusual" if it is more than 2 standard deviations away from

Aleks [24]

Answer:

Step-by-step explanation:

Hello!

X: nitrate concentration in the city's drinking water supply.

X~N(μ;δ²)

A concentration above 10 ppm is a health risk for infants less than 6 months old.

The reported nitrate concentration is between 1.59 and 2.52 ppm, values outside this range are considered unusual.

If any value of a normal distribution that is μ ± 2δ is considered unusual, it is determined that:

μ - 2δ= 1.59

μ + 2δ= 2.52

20) and 21)

I'll clear the values of the mean and the standard deviation using the given information:

a) μ - 2δ= 1.59 ⇒ μ = 1.59 + 2δ

b) μ + 2δ= 2.52 ⇒ Replace the value of Mu from "a" in "b" and clear the standard deviation:

(1.59 + 2δ) + 2δ= 2.52

1.59 + 4δ= 2.52

4δ= 2.52 - 1.59

δ= 0.93/4

δ= 0.2325

Then the value of the mean is μ = 1.59 + 2(0.2325)

μ = 1.59 + 0.465

μ = 2.055

22)

Acording to the empirical rule, 68% of a normal distribution is between μ±δ

Then you can expect 68% of the distribution between:

μ-δ= 2.055-0.2325= 1.8225

μ+δ= 2.055+0.2325= 2.2875

Correct option: C. 1.823 and 2.288 ppm

I hope it helps!

3 0

3 years ago

Nathan wants to use coordinate geometry to prove that the opposite sides of a rectangle are congruent. He places parallelogram A

Fynjy0 [20]

The formula used to find the length of a line segment is the same formula as the Pythagoras theorem.

We take CD as the hypotenuse of the right-angled triangle and the distance between the x-coordinates and y-coordinates as the length of two short sides.

We can write the formula as
CD = $\sqrt{( x_{1}- x_{0}) ^{2}+ ( y_{1}- y_{0}) ^{2} }$
CD = $\sqrt{(a-0)^{2}+ (b-b)^{2} }$

7 0

4 years ago

Read 2 more answers