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fgiga [73]
3 years ago
12

Which answer is correct ? Please explain why !!

Mathematics
2 answers:
Vika [28.1K]3 years ago
7 0
Yeah it’s c your figuring out the expression so your figuring out how much each one would rebpresent
Arturiano [62]3 years ago
3 0
C because there are 10 cents in a dime, and 5 cents in a nickel
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5. The Riverside Geyser in Yellowstone National Park erupts
Anastasy [175]

Answer:

Step-by-step explanation:

<h3>A.</h3>

The equation for the model of the geyser is found by substituting the given upward velocity into the vertical motion model. The problem statement tells us v=69. We assume the height is measured from ground level, so c=0. Putting these values into the model gives ...

  h(t) = -16t² +69t

__

<h3>B.</h3>

The maximum height is at a time that is halfway between the zeros of the function.

  h(t) = -16t(t -4.3125) . . . . . has zeros at t=0 and t=4.3125

The maximum height will occur at t=4.3125/2 = 2.15625 seconds. The height at that time is ...

  h(t) = -16(2.15625)(2.15625 -4.3125) = 16(2.15625²) ≈ 74.39 . . . feet

The maximum height of the geyser is about 74.4 feet.

4 0
2 years ago
What is the solution of n^2 - 49 = 0
Jlenok [28]
N² - 49 = 0
<u>   + 49  + 49</u>
        n² = 49
         n = <u>+</u>7

The solution to the problem is {7, -7}.
5 0
3 years ago
Read 2 more answers
Whats the Mean Meadian Mode <br> 83,97,85,84,96,80,87,91
Airida [17]

Answer:

Mean: 87 Median:85 Mode:80

8 0
3 years ago
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4. The equation of the line on the graph below is a direct variation equation. What is the constant of variation?
choli [55]

\frac{1}{4} → a

the equation is y = mx ( where m is the slope / constant of variation )

calculate m using the gradient formula

m = ( y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁) = (0, 0 ) and (x₂, y₂ ) = (4, 1) ← 2 points on the line

m = \frac{1-0}{4-0} = \frac{1}{4}


3 0
3 years ago
Find the area of the figure. If you need to use Pi in your computation, approximate its value as 3.14. Round to the nearest hund
arsen [322]

Answer:

area of figure= area of rectangle+area of semi-circle

area of rectangle= length ×width

5×4

= 20in²

area of semi circle= 1/2πr²

1/2×22/7×2×2

<u>2</u><u>2</u><u>×</u><u>2</u>

7

<u>4</u><u>4</u>

7

= 6.29in²

area of figure= 20+6.29

= 26.29in²

4 0
3 years ago
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