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deff fn [24]
3 years ago
10

BEST GETS BRAINLIEST

Mathematics
1 answer:
polet [3.4K]3 years ago
3 0
A) Water height, H(g) = 8g^2 + 3g -4 - [9g^2 -2g -5] = 8g^2 + 3g -4 -9g^2 + 2g +5 = -g^2 +5g +1

b) g = 1
H(g) = -(1)^2 + 5(1) + 1 = -1 + 5 + 1 = 5

g=2
H(g) = -(2)^2 + 5(2) + 1 = -4 + 10 + 1 = 7

g=3
H(g) = -(3)^2 + 5(3) + 1 = -9 +15 +1 = 5

c) Greatest height

Find the vertex of the parabole

The vertex is at the mid point between the two roots.

To find the roots you can use the quadratic equation

The result is g = 5/2 + [√29]/2 and g = 5/2 - [√29]/2

The middle poin is 5/2 = 2.5

Now find H(2.5) = -(2.5)^2 + 5(2.5) + 1 = 7.5 ≈ 7.3


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jek_recluse [69]

Answer:

180 cubic centimeters

Step-by-step explanation:

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4. Frank bought lunch for $5.60 at a diner. He spent $2.00 to ride the bus to the mall and back, and spent $6.50 while he was at
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Frank had $19.60 dollars when he left home that morning. If you add the $5.60, $2.00, and $6.50 that he spent while he was away from home, because he had that money when he left, you get a total of $24.60. You should then subtract the $5.00 his friend gave him, since he didn't have that when he left home. This brings you to a total of $19.60, which is the amount Frank left home with.
8 0
4 years ago
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Which of the following statements is not true about the numbers 7 and -7? They are opposite numbers. They form a zero pair. They
Irina-Kira [14]

We need to find which statement is not true:

Let us check each statement:

-They are opposite numbers.

Opposite numbers have the same distance away from zero. Hence, 7 and -7 are opposite numbers.

-They form a zero pair:

7-7 =0, the statement is true.

- They have the same absolute value

The absolute value is the not negative value no matter the sign.

Hence, l7l= 7 and l-7l= 7.

-They have a sum of -14.

Then:

7+(-7) = 0

Therefore, the last statement "They have a sum of -14" is not true.

7 0
1 year ago
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