Please answer I’ll make brainliest. I have other questions too that I’ll be posting shortly

UMMMMMMMMMMMMMMM I don't know

Answer:

The speed of the plane is [tex]v=1.2\: m/s[/tex]

Step-by-step explanation:

The vector (5,6) represents a point in the coordinate system time-position.

So, we have that at t = 5 s the position is x = 6.

Let's recall that the slope of this vector is the speed, then using the tangent definition:

[tex]v=\frac{x}{t}=\frac{6}{5}[/tex]

[tex]v=1.2\: m/s[/tex]

I hope it helps you!

Answer:.83

Step-by-step explanation:

Khan academy

From the discrete distribution given, the standard deviation is of 0.83 children.

The distribution is:

[tex]P(X = 1) = 0.5[/tex]

[tex]P(X = 2) = 0.25[/tex]

[tex]P(X = 3) = 0.25[/tex]

Hence:

[tex]\sqrt{V(X)} = \sqrt{0.5(1 - 1.75)^2 + 0.25(2 - 1.75)^2 + 0.25(3 - 1.75)^2} = 0.83[/tex]

The standard deviation is of 0.83 children.

A similar problem is given at https://brainly.com/question/24188569

Answer:

m = -1, b = 5.

Step-by-step explanation:

We can find the slope, m, by plugging in our coordinates into the slope formula: [tex]\frac{y2-y1}{x2-x1} =\frac{2-7}{3-(-2)}=\frac{-5}{5}=-\frac{5}{5}=-\frac{1}{1}=-1[/tex]. That gives us the slope. Now we can fill that in the slope intercept formula: [tex]y=-1x+b[/tex]. We know one of the coordinates and the slope, which allows to find the y-intercept. We know that for every 1 unit down on the line, we move 1 unit right, and vice versa. Meaning we can just count down (or up in this case), so, (-2, 7), (-1, 6), (0, 5). Therefore, our y intercept is 5.

Answer:

A

Step-by-step explanation:

because the sky is blue

The length of AC after dilation will be 20. Then the measure of the angle ∠A' will be 37°.

We have given that,

AABC is dilated by a factor of 4 to produce AA'B'C'.

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered.

The triangle ΔABC is dilated by a factor of 4 to produce the triangle ΔA'B'C'.

Then the length of AC after dilation. We have

A'C' = scale factor x AC

A'C' = 4 x 5

A'C' = 20

Then the measure of the angle ∠A' will be

There is no effect of dilation on the angle.

∠A = ∠A' = 37°

Thus, the correct option is A.

More about the dilation link is given below.

brainly.com/question/2856466

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Answer:

200÷0.4= the amount then times by 2

Step-by-step explanation:

i believe thats how that works

Answer:

Step-by-step explanation:

Expressing in simplest radical form just means simplifying a radical so that there are no more square roots, cube roots, 4th roots, etc left to find. It also means removing any radicals in the denominator of a fraction.

mark me as brill

Answer:

angle FGJ and angle KJG

hope it helps

Answer:

yes

Step-by-step explanation:

it said it is a perpendicular BISECTOR, H is the mid point of KI, HK = 7

[tex]\huge{\underline{\underline{\boxed{\sf{\red{Answer࿐}}}}}}[/tex]

Answer:

direction

Step-by-step explanation:

Answer:

y=3x+2

Step-by-step explanation:

77*22=    1694                     2*22=44

Step-by-step explanation:

22w + 44 = 77 is the equation which represents the situation and the price of a bottle of water is $1.5.

Two or more expressions with an Equal sign is called as Equation.

Let w be the price of a bottle of water.

The coach is buying 22 bottles of water and 22 energy bars, which cost a total of $77.

The cost of 22 energy bars is $2 x 22 = $44.

So the total cost of 22 bottles of water and 22 energy bars is:

22w + 44 = 77

We can simplify this equation by first subtracting 44 from both sides:

22w = 33

Then, we can solve for w by dividing both sides by 22:

w = 1.5

Therefore, 22w + 44 = 77 is the equation which represents the situation and the price of a bottle of water is $1.5.

To learn more on Equation:

https://brainly.com/question/10413253

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Answer:

Step-by-step explanation:

so this question is about perpendicular lines.    keep in mind that a perpendicular line has a reciprocal slope of opposite sign, from the line it's perpendicular to .  :)  okay so what is that line the robot is on, let's first  

find the slope  , m

m = (y2 - y1)  / ( x2 - x1)  

P1 = (8,6)  in the form ( x1,y1)

P2= (-10,-5) in the form (x2,y2)

then

m = (-5-6) / (-10-8)

m = -11 / -18

m = 11/ 18

and then lets use the point-slope formula with the slope we just found and one of the given points, let's pick  P1

y-6 = 11/18(x-8)

y = 11/18x - 88/18 + 6

y = 11/18x -88/18 + 108/18

y = 11/18x + 20/18

now let's take the reciprocal of the slope and change the sign,  then we have

y = - 18/11x +20/18  ( coordinates robot can move on )

on the graph I'm attaching the green line is the one where the robot first moves, then the purple one.. is the one it turns 90 ° on to .

Answer:

70cm

Step-by-step explanation:

Just like a rectangle, the formula for finding the area of a parallelogram is basexheight. [tex]14*5=70[/tex]

Answer:

No solution

Step-by-step explanation:

The given system of equations are ,

Adding both equations ,

=> 3x - y + y -3 x = -1-5

=> 0 = -6

Since we arrived at a contradiction the given pair of equations have No solution .

Answer:

34 because 50 percent of 68 is 34

Answer:

There are 34 red marbles in the bin

Step-by-step explanation:

50% is basically 1/2. So half of 68 is 34.

Answer:

the first one and the last one

Step-by-step explanation:

Options :

A) 12⟌60

B) 60 ÷ 12

C) 60⟌12

Answer:

C) 60⟌12

Step-by-step explanation:

Given that :

Total cost of inviting 12 guests to a party = $60

To obtain the cost per guest :

Total cost of invitation / number of guests

That is ; we divide the cost of inviting the guests by the number of guests invited

$60 / 12 = 12⟌60

The expression 60⟌12 is incorrect as this means 12 / $60

Answer:b

Step-by-step explanation:

l x w x h

Answer:

i think he payed 34 since 40 percent of 85 is 34.

Step-by-step explanation:

To find the discount price, multiply the original price ($85) by the discount ( 100-40=60): 85 x 0.6= $51 is what he paid.

I think the answer is B.....

You can download answer here

tinyurl.com/wpazsebu

Answer:

254.47

Step-by-step explanation:

1/4[tex]\pi[/tex]d^2

Answer:

you are correct do not say any other answer

Answer:

The answer is either

y=50000 x 0.8^x

or

y=50000(20%)^x but this just seems wrong

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

we should first find the value of x.

Answer:

C

Step-by-step explanation:

(x-a)^2=5

x-3=root of 5

x= root of 5 +3

Answer:

Use your resources wisely

Step-by-step explanation:

Answer:

[tex] \frac{2}{3} x + 1 = x \\ \frac{1}{3} x = 1 \\ x = 3 \\ y = 3[/tex]

X=3,y=3

Answer:

d = 4cm

Step-by-step explanation:

curved surface area (CSA) of cylinder = [tex]2\pi rh[/tex]

h = 28cm and CSA = 352[tex]cm^{2}[/tex]

[tex]2\pi rh[/tex] = 352

2 * [tex]\frac{22}{7}[/tex] * r * 28 = 352

[tex]r = \frac{352*7}{2*22*28}[/tex]

after calculating, you will get r = 2cm

so diameter = 4cm

Answer:

Triangular prisms have their own formula for finding surface area because they have two triangular faces opposite each other. The formula A=12bh is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height.

Hope it helps..

Have a great day