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Alex17521 [72]
3 years ago
7

Can u guys pls help me on this question and pls explain how u got the answer

Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

17.4 cm²

Step-by-step explanation:

base = 3x2.6x0.5 = 3.9 cm²

3 sides = 3(3)(3)(0.5) = 13.5 cm²

13.5 + 3.9 = 17.4 cm²

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Function 2
balandron [24]

Answer:

Function 2 has larger max value.

Step-by-step explanation:

We know that the graph of Function 1 has the maximum value of 1 at x = 4 by looking at the graph.

But since we don't know what the maximum value of Function 2 is (Because Function 2 isn't given as a graph but rather an equation.) which means that we have to find the maximum value of Function 2.

\large{f(x) =  -  {x}^{2}  + 4x + 1}

It is not necessary to find x-value for a function because we want to know which function has larger maximum value. We will be using the formula below.

\large \boxed{y =  \frac{4ac -  {b}^{2} }{4a} }

As you may know, a max-min value is indeed y-value. From Function 2, we know the value of a, b and c from standard form y = ax²+bx+c

Substitute our a, b and c in the formula.

\large{y =  \frac{4( - 1)(1) -  {(4)}^{2} }{4( - 1)} } \\ \large{y =  \frac{ - 4 - 16}{ - 4} } \\ \large{y =  \frac{ - 20}{ - 4}  = 5}

Since our maximum value or y-value is 5 for Function 2. Since we also know that Function 1 has 1 as maximum value and Function 2 has 5 as maximum value. Therefore, Function 2 has larger maximum value.

5 0
3 years ago
Solve the equation using multiplication or division.
Brut [27]

Answer:

y=-4

Step-by-step explanation:

-7y=28

DIVIDE BY -7

28/-7=-4

Answer=-4

3 0
1 year ago
A rocket travels in a trajectory given by the equation s = -4.9t 2 + v0t, where s is meters above ground, t is time in seconds a
Reptile [31]

Step-by-step explanation:

s = -4.9t² + 49t

The vertex of the parabola is at t = -b/(2a).

t = -49 / (2 × -4.9)

t = 5

The rocket reaches its maximum height after 5 seconds.

5 0
3 years ago
Helppp me please!!! ​
Artist 52 [7]

Answer:

18 hdhb

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Are y = 1/4 -2 and y = 1/4 + 2 parallel?
zhenek [66]

Answer:

yes because the slope is equal. so these two lines are parallel.

3 0
3 years ago
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