If no mechanical energy were lost, a skateboarder descending a straight 40 meter slope would arrive at its foot with speed of 15 m/s.Calculate the angle the slope makes with the horizontal​

Answer:

7 times (*) 8

Step-by-step explanation:

Product in this case means multiplication

Answer:

.25

Step-by-step explanation:

distance between 0,4 is 1. The distance between _2 and _3 is minus 5. X equals.

.25

Answer:

68°

Step-by-step explanation:

This triangle is isosceles triangle, so RQS and QSR are equal,

SRQ= 180-56-56=68

Answer:

The first question is 11.25

The second question is 35.5

Step-by-step explanation:

Answer:

122

Step-by-step explanation:

64 + 58 = (l)

(l) = 122

Answer:

The correct solution is "[tex]10g^3+2g^2+17g-14[/tex]".

Step-by-step explanation:

The given expression is:

= [tex](10g^3-8g^2+5g-14)+(10g^2+12g)[/tex]

By opening the brackets, we get

=  [tex]10g^3-8g^2+5g-14+10g^2+12g[/tex]

By applying addition and subtraction, we get

= [tex]10g^3+2g^2+17g-14[/tex]

Or,

The expression isn't a perfect cube.

The factors of  polynomial expression x^4 + x^2 − 20 is [tex](x - \sqrt{5})(x + \sqrt{5})(x - i \sqrt{5})(x + i \sqrt{5})$[/tex].

We are given that;

The polynomial expression =[tex]x^4 + x^2 − 20.[/tex]

Now,

To factor a polynomial expression, we need to find the common factors of each term and then use the distributive property to write the expression as a product of two or more factors.

For example,[tex]x^4 + x^2 − 20[/tex] can be written as:

[tex]$x^4 + x^2 - 20 = x^2(x^2 + 1) - 20$[/tex]

We can use the difference of squares formula to factor x^2 + 1 and 20:

[tex]$x^2 + 1 = (x + i)(x - i)20 = (2 \sqrt{5})(2 \sqrt{5})[/tex]

where i is the imaginary unit such that i^2 = -1. Now, we can write the expression as:

[tex]$x^4 + x^2 - 20 = x^2(x + i)(x - i) - (2 \sqrt{5})(2 \sqrt{5})$[/tex]

We can use the difference of squares formula again to factor the whole expression:

[tex]$x^4 + x^2 - 20 = (x^2 - 2 \sqrt{5})(x^2 + 2 \sqrt{5})$[/tex]

we can still factor each factor further into prime factors. We have:

[tex]x^2 - 2 \sqrt{5} = (x - \sqrt{5})(x + \sqrt{5})$\\$x^2 + 2 \sqrt{5} = (x - i \sqrt{5})(x + i \sqrt{5})[/tex]

Therefore, by factorization answer will be [tex](x - \sqrt{5})(x + \sqrt{5})(x - i \sqrt{5})(x + i \sqrt{5})$[/tex]

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Answer:

C. 99

Step-by-step explanation:

The number are all less than 50 and then there is only one number that is greater than 50. The number is 99. Because it is a number that is not close to the average numbers at all, it is the outlier.

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Answer:

C. 99

Step-by-step explanation:

an outlier is a number that is dralastically diffrent then the rest

here you go i hope this helps

Answer:

Solving for X? would be 1

Step-by-step explanation:

32x-8-12x=22x-6

20x-8=22x-6 then subtract 20x from each side and add 6 to each side

2=2x then divide by 2 and getting 1 is x

Answer:

x=-1

Step-by-step explanation:

Answer:

70.83

Step-by-step explanation:

srr if incorrect

Answer:

1) A because of vertical angle theorem (VAT), which means that b=37 degrees

2) C because a right angle is= to 90 degrees. Take away 23, you get 67 degrees

3) B because the image shows a full angle, which is equal to 360 degrees. Take away 207 and 58, you get 95 degrees

4) D because a right angle is= to 90 degrees. Take away 44, you get 46 degrees

5) A because a right angle is=to 90 degrees. Take away 58, you get 32 degrees

Answer:

Step-by-step explanation: The easiest territory computations are for squares and square shapes. To discover the space of a square shape, duplicate its tallness by its width. For a square, you just need to discover the length of one of the sides (as each side is a similar length) and afterward duplicate this without anyone else to discover the region.

Answer:

B and E

Step-by-step explanation:

The equations that represent a parabola with the focus (0,4) and the vertex (0, -6)  are 40y = [tex]x^{2}[/tex] - 240 and [tex]x^{2}[/tex] = 40 (y + 6)

A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line. The fixed point is called the focus of the parabola, and the fixed line is called the directrix of the parabola.

The general equation of a parabola is:

[tex](y -k)^{2}[/tex] = 4a(x − h) for horizontal parabola

[tex](x - h) ^{2}[/tex]= 4a(y − k) for vertical parabola

where (h,k) denotes the vertex

a = point of focus

According to question

focus of parabola :(0,4)

vertex of parabola (h,k): (0, -6)

now, form points given

a = 4 − (-6) = 10 as x coordinates are the same.

Since the focus lies to the left of vertex, a = 10

By The general equation of a parabola :

[tex](x - h) ^{2}[/tex]= 4a(y − k) for vertical parabola

[tex](x - 0)^{2}[/tex] = 4*10(y-(-6))

[tex]x^{2}[/tex] = 40 (y + 6) --------------------- (1)

or

[tex]x^{2}[/tex] = 40y + 240

40y = [tex]x^{2}[/tex] - 240 ---------------------------(2)

Therefore , parabola can be represented by equation (1) and (2).

Hence, the equations that represent a parabola with the focus (0,4) and the vertex (0, -6)  are 40y = [tex]x^{2}[/tex] - 240 and [tex]x^{2}[/tex] = 40 (y + 6)

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Answer:

I'm going to say 24. I'm 97% sure I'm correct

Answer:

area: 3.14

Step-by-step explanation:

because the radius is one, one squared is the same as itself, then by multiplying one by pi, you simply get pi. Therefore making 3.14 your answer.

the answer should be 3.14 or 3.14159

Answer:

Step-by-step explanation:

Zeros can be observed graphically or solved for algebraically. A linear function can have none, one, or infinitely many zeros. If the function is a horizontal line ( slope = [latex]0[/latex]), it will have no zeros unless its equation is [latex]y=0[/latex], in which case it will have infinitely many.

Answer:

answer is negative

Step-by-step explanation:

2021 edge :)

Answer:

He would be about 69 inches

Answer:

69 inches tall

Step-by-step explanation:

add 5ft = 60 inches + the other 9 inches which is

69 inches all together

Answer:

-36

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

A number n decreased by 18 is 3

This can be though of as:

N subtracted by 18 equals 3

And put into a solvable form:

N-18=3

Now lets solve for N:

N-18=3

 +18   +18

=

N=21

So this is your answer!

Hope this helps!

Answer:

Bro I need the problem so I can answer the question not the asnwers I need to see the question too.

Answer:

Tang instituted government - funded social programs , which were designed to help the poor .

hope it is helpful to you.

Answer : 59%

Step-by-step explanation:

Answer:

y = 8.5x

Step-by-step explanation:

the amount of money (y)

amount per hour (8.5) times the hours (x)

Answer:

C). y = 8.5x

Step-by-step explanation:

it would be the third one because in order to find out how make she’s makes every hour when she’s paid $8.50 you would have to multiply the amount she’s paid by how many hours she works.

hope this helped!

Answer:

0.65

Step-by-step explanation:

The probability that a randomly selected student is in sports is 0.65.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

Given that, the number of students = 100.

Total number of outcomes =100

Number of favorable outcomes =65

Now, P(Sports) = 65/100

= 0.65

The probability that a randomly selected student is in sports is 0.65.

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Answer:

b = 5/12

Step-by-step explanation:

1. Cross multiply -> 1 x 5 = 5 and 3b x 4 = 12 b

2. Simplify -> 5 = 12b and switch sides so it's easier: 12b = 5

3. Divide both sides by 12 -> 12b ÷ 12 = b and 5 ÷ 12 = 5/12

4. So, the answer is b = 5/12

Hope this helps! :)

Use symbolab, it's very helpful

Answer:

The answer is 2 2/5

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 3, 1) ← 2 points on the line

m = [tex]\frac{1-0}{-3-0}[/tex] = - [tex]\frac{1}{3}[/tex]

y = - [tex]\frac{1}{3}[/tex] x ← equation of line

Answer:

the correct answer is option D

Answer:

1st blank = Shorter

2nd blank = shorter

3rd blank = will not

Step-by-step explanation:

Base of the box

a² + b² = c²

Lets input the numbers

32² + 8² = c²

1024 + 64 = c²

1088 = c²

Sq rt c = 32.9

32.9<34 so it will not fit.

Interior of the box

32² + 6² = c²

1024 + 36 = c²

1060 = c²

Sq root = 32.6

If my answer is incorrect, pls correct me!

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-Chetan K