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mel-nik [20]
2 years ago
11

When x=2 and y=4, by how much does the value of 4x^2 - y exceed the value of 3x^2 - 3y​

Mathematics
1 answer:
kakasveta [241]2 years ago
6 0

Step-by-step explanation:

4(2)² - 4 =

4(4) - 4 = 12

3(2)² - 3(4)

3(4) - 12

12 - 12 = 0.

It exceeds the value by 12 :)

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Please help my grade is a 68 i need a 70 at least
aleksklad [387]

Answer:

10s²-6s+9

Step-by-step explanation:

C = -3 + 5s²

B = -2s + 5

2(-3 + 5s²) = -6 + 10s²

3(-2s + 5) = -6s + 15

10s² - 6s + 9

8 0
3 years ago
Jane purchased a concert ticket on a web site. The original price of the ticket was $55. She used a coupon code to receive a 20%
Licemer1 [7]

Answer:

28%

Step-by-step explanation:

-The price after the coupon discount is calculated as;

P_{ad}=P_r(1-d)\\\\=55(1-0.2)\\\\=\$44

We reduce the discounted price by the service fee to determine the effective purchase price:

P_f=P_{ad}(1-f)\\\\=44(1-0.1)\\\\=\$\ 39.6

#Compare this final price to the original price:

\bigtriangleup=1-\frac{Final}{Original}\\\\=1-\frac{39.6}{55}\\\\=0.28 \ \ or \ 28\%

Hence, the final price was 28% less than the original price.

5 0
4 years ago
1t = 1000kg.
natka813 [3]

Answer:

i think ur question is wrong

4 0
3 years ago
There are s swimmers in the swimming club. The club bought 15 swimming caps to split among its members. Write an expression that
vivado [14]

Answer:

15/s

Step-by-step explanation:

15 caps ÷ s = 15/s caps per swimmer

6 0
3 years ago
Does the equation below define a liner function​
Komok [63]
<h3>Answer: No, this function is not linear</h3>

This function is a hyperbola. It graphs out two disjoint curves. A linear function produces a single straight line graph. All linear functions can be written in the form y = mx+b. The x being in the denominator is one indicator we cannot write the original equation in the form y = mx+b.

y = 3/x is the same as xy = 3; this tells us every point on y = 3/x has its (x,y) coordinate pair multiply to 3.

8 0
4 years ago
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