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weqwewe [10]
3 years ago
7

Please solve with working quick please

Mathematics
1 answer:
murzikaleks [220]3 years ago
6 0

Answer:

\displaystyle V=16500\ m^3

Step-by-step explanation:

<u>Volume Of A Pyramid </u>

The volume of a pyramid is computed as one third of the product of the area of the base (B) by the height (H):

\displaystyle V=\frac{1}{3}BH

<em>The question doesn't ask for anything in particular, so I'm computing the volume of the solid shown in the image </em>

We have a rectangular base of dimensions 15m x 60 m. The area of the base is

B=(15m)(60m)=900m^2

We now calculate the volume, knowing the height is 55 m

\displaystyle V=\frac{1}{3}(900\ m^2)(55\ m)

\boxed{\displaystyle V=16500\ m^3}

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The line through (1,6) and (0,3) passes through every quadrant expect one. Which one?​
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4 quadrant

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What is 3/4 to the power of 4 as a fraction?
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Answer:

81 / 256

Step-by-step explanation:

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(Just because I'm a high schooler doesn't mean that I don't know this I take AP and IB classes)

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Read 2 more answers
Help me please ASAP!!
Tcecarenko [31]
Hello there k12 user. - i am in k12 too :)

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6 0
3 years ago
Please Help. I really don’t get this concept, if you could explain it in detail it would be very appreciated
Dafna11 [192]
<h3>Answer: 24/25</h3>

=================================================

Explanation:

Sine is given to be negative, and so is tangent. This only happens in quadrant Q4

Recall that y = sin(theta), so if sin(theta) < 0, then we're below the x axis.

If tan(theta) < 0, then this means cos(theta) > 0

So we have y < 0 and x > 0 which places the angle somewhere in Q4.

--------------------------

Draw a right triangle as shown below in the attached image. We have AC = 25 and BC = 7. Use the pythagorean theorem to find that AB = 24

So this is what your steps may look like

a^2+b^2 = c^2

7^2+b^2 = 25^2

b^2+49 = 625

b^2 = 625-49

b^2 = 576

b = sqrt(576)

b = 24

So because AB = 24, we know that the cosine of the angle is adjacent/hypotenuse = 24/25

---------------------------

As an alternative, you could use the trig identity

sin^2(x) + cos^2(x) = 1

and plug in the given value of sine to solve for cosine. The cosine value result will be positive since we're in Q4.

So,

sin^2(x) + cos^2(x) = 1

(-7/25)^2 + cos^2(x) = 1

(49/625) + cos^2(x) = 1

cos^2(x) = 1 - (49/625)

cos^2(x) = (625/625) - (49/625)

cos^2(x) = (625-49)/625

cos^2(x) = 576/625

cos(x) = sqrt(576/625)

cos(x) = sqrt(576)/sqrt(625)

cos(x) = 24/25

This is effectively a rephrasing of the previous section since the pythagorean trig identity is more or less the pythagorean theorem (just in a trig form)

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3 years ago
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Answer:f ( x - 1 ) = 3x² - 5x - 7

Step-by-step explanation:

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