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AVprozaik [17]
3 years ago
9

Lol can someone help asap i need this done for a quiz, i’ll give brainliest.

Mathematics
1 answer:
maksim [4K]3 years ago
7 0

Answer:

8.06

Step-by-step explanation:

\sqrt{4^{2}+7^{2}  }

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Can someone help? I’ll give brainliest!
Shkiper50 [21]

Answer:

V=65.94 in^3 (inches cubed)

Step-by-step explanation:

V=πr^2h/3

h = 7

r = 3

V = (3.14)(3^2)(7/3)

V= (3.14)(9)(2.333)

V=65.94 in^3

4 0
2 years ago
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HURRY I NEED HELP PLEASEE. what is 98.5764x876.347
navik [9.2K]

Answer:

It is:

86387.13241

Step-by-step explanation:

3 0
3 years ago
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Ed buys a box of eggs costing £2.20, two packs of bacon for £2.80 each and two tins of baked beans.
Vika [28.1K]

Solving a linear equation, we can conclude that each tin costs £0.75

<h3>How much does a tin of beans cost in pounds?</h3>

First, we know that Ed buys one box of eggs for £2.20.

Also two packs of bacon for £2.80 each.

And two tins of beans for X each.

Then the total cost is:

C =  £2.20 + 2*£2.80 + 2*X

Now, we also know that when he pays with £10, he gets a change of £0.70.

Then we can solve the linear equation:

£10 - (£2.20 + 2*£2.80 + 2*X) = £0.70

£2.20 - 2*X = £0.70

£2.20 - £0.70 = 2*X

£1.50 = 2*X

£1.50/2 = X = £0.75

In this way, we can conclude that each tin costs £0.75

If you want to learn more about linear equations:

brainly.com/question/1884491

#SPJ1

4 0
1 year ago
A firefighter climbs a ladder from the ground to the top of a building. The angle of elevation of the ladder is 34 and the dista
Vlad1618 [11]
You use tan34=x/15
so x=15*tan(34degrees)
x=10.12 ft
3 0
3 years ago
A rock is thrown in the air from the edge of a seaside cliff. Its height in feet is represented by f(x) = –16(x^2 – 8x – 9), whe
algol13
Since x is the number of seconds it took the rock to hit the water, x is the value that we are looking for. When the rock hits the water, it's height is 0, therefore, f(x) = 0. So, we can set the expression on the right equal to 0, and solve for 0. Let's do just that:
0 = -16(x^2-8x-9)

We can divide by -16, nothing will happen because 0 divided by anything is 0:
0 = x^2-8x-9

To factor any trinomial in standard form (given below), we must find two numbers that add to "b" and multiply to "c":
0 = ax^2 + bx + c

So, for this specific question, let's find two numbers that add to -8 and multiply to 9. These are clearly 9 and -1. We can write it in this way now:
0 = (x-9)(x+1)

Both answers would be valid, but there can't be negative time, so your answer is "It takes 9 seconds for the rock to reach the water."
4 0
3 years ago
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