All categories

4 years ago

PLEASE HELP QUICKLY 20 POINTS

Mathematics

1 answer:

pickupchik [31]4 years ago

8 0

The correct answer is c, because it repeats the x value 4 twice in the series of coordinates.

Hope this helps!

You might be interested in

Ron estimates that it will cost $400,000 to send his daughter to a private college in

faust18 [17]

Answer: simple interest rate is 19%

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the amount invested.

P represents the principal or amount invested.

R represents interest rate

T represents the duration of the investment in years.

From the information given,

P = 90000

I = 400000 - 90000 = $310000

T = 18 years

Therefore,

310000 = (90000 × R × 18)/100

310000 = 16200R

R = 310000/16200

R = 19%

7 0

3 years ago

A flare is launched upwards from a platform that is 20 feet in the air with an initial velocity of 128 feet per second. What is

Nastasia [14]

Answer:

Hmax = 269.76 feet

Step-by-step explanation:

This movement is vertical shot up.

We will accept value of g= 10m/s², but we must convert meters in the feets.

We know that 1 meter = 3.28 feets => 10meters = 32.8 feets

According to this g= 32.8 feet/s²

A flare is launched upwards from the height platform H₁ = 20 feet.

Initial velocity is 128 feet per second, when the flare reaches the highest point the final velocity is zero.

We will marked velocity with V and use this formula

V₀² - V² = 2 · g · H₂ and V= 0 => V₀² = 2 · g · H₂ => H₂ = V₀²/ 2 · g

H₂ = 128² / 2 · 32.8 = 16384 / 65.6 = 249.76 feet

The highest point in feet , that the flare reaches is:

Hmax = H₁ + H₂ = 20 + 249.6 = 269.6 feet.

God with you!!!

3 0

3 years ago

Last year your professor wanted to study the pattern in class grades. The following table contains a sample of grades collected

Maslowich

Answer:

mean = 78.4

median = 77.5

mode = 75

This is Right - skewed (positive skewness) distribution

Step-by-step explanation:

Mean:-

The mean (average) is found by adding all of the numbers together and dividing by the number of items and it is denoted by x⁻

mean = $\frac{64+80+75+98+75}{5}$

mean (x⁻ ) = 78.4

The mean of the given data = 78.4

Median:

The median is found by ordering the set from lowest to highest and finding the exact middle.

64 ,75, 80, 98

The middle term of the given data set = $\frac{75+80}{2} =77.5$

Mode :

The mode is the most common repeated number in a data set.

64 ,75, 75, 80, 98

in data the most common number = 75

Conclusion:-

mean = 78.4

median = 77.5

mode = 75

This is Right - skewed (positive skewness) distribution

8 0

3 years ago

Please help me!

Grace [21]

Answer:

f(t) = 6 t+8

Step-by-step explanation: I believe that's the answer

3 0

3 years ago

A rocket is launched into the air. The height h(t), in yards, of the rocket is a function of time, t, in seconds, as shown in th

Vesna [10]

Answer:

Step-by-step explanation:

Average rate of change is the same thing as the slope. Because this is parabolic, we cannot find the exact rate of change as we could if this were a linear function. But we can use the same idea. When t = 3, h(t) = 33, so the coordinate point is (3, 33). When t = 6, h(t) = 0, so the coordinate is (6, 0). Plug those values into the slope formula:

$m=\frac{0-33}{6-3}$ and

$m=\frac{-33}{3}$ which is -11

From 3 to 6 seconds, the rocket is falling 11 yards per second.

8 0

4 years ago