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4 years ago

15

30 points if you can answer this question and tell me how to do it

1 answer:

vlabodo [156]4 years ago

7 0

Answer for a)

Since the coordinates are arranged as (x, y, z), then 3 would be for x, 0 would be for y, and 1 would be for z. The x is the length, the y is the height, and the z is the width. It is said that the x-axis value is 3 so there are 4 letters on the 3 value which are: P, S, B, and A. Now, let's look at the 0 on the y-axis. Since the y-axis is the height, then there are 2 letters remaining: A and B. Now, the z-axis is 1. So the letter for point (3, 0, 1) is... B.

Answer for b)

For the x-axis, P is at 3. For the y-axis, P is at 2. For the z-axis, P is at 1. So the coordinate of P is: (3, 2, 1).

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The length of the rectangle is x cm. The length of a diagonal of the rectangle is 8 crn. The perimeter of the rectangle is 20 cm

klemol [59]

Answer:

$x^2-10x+18=0$

<em>a</em> = -10 and <em>b</em> = 18.

Step-by-step explanation:

Let <em>w</em> represent the width of the rectangle.

We are given that the perimeter of the rectangle is 20 cm, this means that:

$20=2(x + w)$

Let's put <em>w</em> in terms of <em>x</em>. Divide both sides by two:

$10=x+w$

And solve for <em>w:</em>

<em /> $w=10-x$ <em />

So, the rectangle measures <em>x</em> by (10 -<em> x</em>) cm.

<em />

According to the Pythagorean Theorem:

$a^2+b^2=c^2$

<em>a</em> and <em>b</em> are the legs and <em>c</em> is the hypotenuse.

Substitute <em>x</em> for <em>a, w</em> for <em>b</em>, and 8 for <em>c:</em>

<em /> $x^2+w^2=8^2$ <em />

Simplify and substitute:

$x^2+(10-x)^2=64$

Square:

$x^2+(100-20x+x^2)=64$

Isolate the equation. So:

$2x^2-20x+36=0$

Since the leading coefficient is one, divide both sides by two:

$x^2-10x+18=0$

Therefore, <em>a</em> = -10 and <em>b</em> = 18.

6 0

3 years ago

Helpp pls fastttttttttttttttttttt

Aleksandr [31]

Answer:

35 square inches

Step-by-step explanation:

S = ( 1/3 x 15 ) x ( 1/3 x 21 ) = 5x7= 35 square inches.

Hope this helps you.

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1 year ago

Michela’s skateboard ramp is at an incline of 40°. When she attempts a trick on the ramp, she finds that it is too steep. She ad

marissa [1.9K]

Answer:

22.7604763 degrees

Step-by-step explanation:

Note that the answer is NOT 20 degrees.

She adjusted the ramp to half the original <em>incline</em>

Therefore we have tan 40 = x = 0.839099631.

We want an incline of y degrees where tan y = x/2 = 0.839099631/2 = 0.419549815

Taking the arctan of both sides, we get

y = arctan(0.419549815) = 22.7604763 degrees

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3 years ago

A sweater is marked down from $25 to $18. What is the percent of change

zhenek [66]

Answer:

28 percent off is the answer :)

Step-by-step explanation:

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3 years ago

Read 2 more answers

100 point please help. It's not 28 or 52

Vedmedyk [2.9K]

Answer:

The answer is 39 ...........

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2 years ago