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pashok25 [27]
3 years ago
12

Could you please provide the answer as well as explain it, I will be very grateful...

Mathematics
1 answer:
Vilka [71]3 years ago
7 0
Hello,

There is a mistake: it is 816 cm² !!! (an area)

length are multiplied by 2,
so area are mutiplied by 2²=4
Area B=816*4=3264 (cm²)


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Please help me. I can't figure this out. I've been doing math for 5 hours and that's not an exaggeration.
svetlana [45]

Well you have to do PEMDAS

So we have an exponent so that will turn into a positive X

X+4x=10

So now we combine our X's together to get 5X=10

Now we divide both sides by X which gives us 2

Sorry read the problem wrong

Ask questions if you still need help :)


6 0
4 years ago
Read 2 more answers
3. A man of mass 80 kg standing at the top of a tall
Alex

Step-by-step explanation:

Gravitational potential energy is:

PE = mgh

Given PE = 96000 J and m = 80 kg:

96000 J = (80 kg) (9.8 m/s²) h

h ≈ 122 m

Round as needed.

3 0
3 years ago
Willing to brainlist solve 16-17 please during this exam
ivann1987 [24]

Answer:

16. B

17. B

Step-by-step explanation:

16. The intercept form of the parabola is

y=a(x-x_1)(x-x_2),

where x_1, x_2 are two x-intercepts.

In your case,

x_1=2\\ \\x_2=-8

so

y=a(x-2)(x-(-8))\\ \\y=a(x-2)(x+8)

To find <em>a</em>, substitute coordinates of the point (-6,-4) parabola is passing through

-4=a(-6-2)(-6+8)\\ \\-4=-16a\\ \\a=\dfrac{1}{4}

and

y=\dfrac{1}{4}(x-2)(x+8)

17. The vertex form of the parabola equation is

-2p(y-k)=(x-h)^2,

where <em>(h,k)</em> are the coordinates of the vertex and sign "-" because parabola goes down.

In your case, vertex is (2,3), so

-2p(y-3)=(x-2)^2

The vertex is 3 units from the focus, then

\dfrac{p}{2}=3\\ \\p=6

The equation of the parabola is

-2\cdot 6(y-3)=(x-2)^2\\ \\y=-\dfrac{1}{12}(x-3)^2+3

8 0
4 years ago
Answer answer please please
tamaranim1 [39]

Answer:

B. <

Step-by-step explanation:

2.7 * 10^3 is < 27 * 10^3

since

27 * 10^3 = 27000

2.7 * 10^3 = 2700

2700 < 27000

now since multiplying by 10 moves the decimal to the right, just looking and mentally comparing them. since they are both multiplied by 10^3 you're left with 2.7 and 27

27 is greater than 2.7

so

your answer is B or <

hope this helps :)

3 0
2 years ago
Read 2 more answers
A right cubic prism has edges of 3 1/4 inches. How many cubes with side lengths of 1/4 inches would be needed to fill the prism?
choli [55]
<span>(195/8)/(1/64) = (195/8)(64) = 1560 cubes is your answer.</span>
3 0
3 years ago
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