If S is directly proportional to t squared and s= 8 when t= 4 find the value of s when t= 3

Answer:

black hat

Step-by-step explanation:

as you know that there are 5 black hats so any of one black hat will be on his hand

Answer:

[tex] \sqrt{50} + \sqrt{18} - 8 \sqrt{2} \\ \\ 5 \sqrt{2} + 3 \sqrt{2} - 8 \sqrt{2} \\ \\ 8 \sqrt{2} - 8 \sqrt{2 } \\ \\ = 0[/tex]

Given the expression:

[tex] \displaystyle \large{ \sqrt{50} + \sqrt{18} - 8 \sqrt{2} }[/tex]

Since we have 2 in the square root from 8√2. We will be converting terms in √2 form so we can. evaluate.

As we know, 50 comes from 5×10 = 5×5×2

and 18 comes from 9×2 = 3×3×2.

[tex] \displaystyle \large{ \sqrt{5 \times 5 \times 2} + \sqrt{3 \times 3 \times 2} - 8 \sqrt{2} }[/tex]

In the square root, if there are two same numbers, we can pull it out as one.

Ex. √5×5 would be 5. Refer to below:

[tex] \displaystyle \large{ \sqrt{a \times a} = \sqrt{ {a}^{2} } = |a| }[/tex]

Since there are two fives and two threes in the square root, we pull these numbers out only one.

[tex] \displaystyle \large{ 5\sqrt{2} + 3 \sqrt{2} - 8 \sqrt{2} }[/tex]

Because these terms have the same square root of 2, we can evaluate 5+3-8.

[tex] \displaystyle \large{ 8 \sqrt{2} - 8 \sqrt{2} } = 0[/tex]

Of course, like term - like term = 0

Hence, the answer is 0.

Answer:

M=(7,2)

Step-by-step explanation:

M=(10+4/2,5+-1/2)

M=(7,2)

Answer:

No they do not have to be congruent.

Two rectangles with the same perimeter but may not be congruent, because the length and width dimensions of each may be different.

Answer:

Top left one

Step-by-step explanation:

Answer:

$0.10 per oreo

Step-by-step explanation:

To find the unti rate, all we need to do is divide.

2.99 / 30 ≈ 0.10

Best of Luck!

Answer:

y=2x

Step-by-step explanation:

we can set x=number of week, and y=inches

as you can see, 1 week-> x=1 :y=2(1) = 2 inches

                         2 week-> x=2 :y=2(2)=4 inches

**if we substitute x to  y = 2x + 2 and y = 4x + 2, it will not works.

Answer:

x≥ 21 2/3

Step-by-step explanation:

81 - 1 1/5x ≤ 55

Subtract 81 from each side

81 -81- 1 1/5x ≤ 55-18

- 1 1/5x ≤ -26

Change the mixed number to an improper fraction

-(5*1+1)/5 x ≤ -26

-6/5 x ≤ -26

Multiply each side by -5/6, remembering to flip the inequality

-5/6 *-6/5x≥ -26 * -5/6

x≥130/6

Changing back to a mixed number

x≥ 21 2/3

Answer:

Answer: A

Step-by-step explanation:

[tex]81 - 1 \frac{1}{5} x \leqslant 55[/tex]

subtract 81 from both sides:

[tex](81 - 1 \frac{1}{5} x) - 81 \leqslant 55 - 81 \\ \\ - 1 \frac{1}{5} x \leqslant - 26[/tex]

express the mixed fraction into a proper fraction:

[tex] - \frac{6}{5}x \leqslant - 26[/tex]

multiply -5 on both sides:

[tex] ( - \frac{6}{5} x) \times 5 \leqslant ( - 26 \times - 5) \\ \\ 6x \leqslant 130[/tex]

divide all sides by 6:

[tex] \frac{6x}{6} \leqslant \frac{130}{6} \\ \\ x \leqslant 21 \frac{2}{3} [/tex]

Answer:

see explanation

Step-by-step explanation:

An ordered pair is a set of coordinates (x, y )

This can be o point on a graph or the solution to a system of equations or values from a table

Answer: It's a point on a graph (y,x)

Step-by-step explanation:

[tex]\\ \rm\hookrightarrow (x,y)=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]

[tex]\\ \rm\hookrightarrow (x,y)=\left(\dfrac{15+1}{2},\dfrac{9-9}{2}\right)[/tex]

[tex]\\ \rm\hookrightarrow (x,y)=\left(\dfrac{16}{2},\dfrac{0}{2}\right)[/tex]

[tex]\\ \rm\hookrightarrow (x,y)=(8,0)[/tex]

Answer:

[tex]mid \: point \: for \: x = \frac{x1 + x2}{2} \\ = \frac{15 + 1}{2} = \frac{16}{2} = 8 \\ mid \: point \: for \: y = \frac{y1 + y2}{2} \\ = \frac{ - 9 + 9}{2} \\ = \frac{0}{2} \\ = 0then \: (x \: y) = (8 \: 0) \\ thank \: you[/tex]

Answer:

49/100

Step-by-step explanation:

Answer:

Decimal Fraction Percentage

0.49 49/100 49%

Degree of h(x) is 5 because there are 5 x intercepts

Given :

The function h(x) has a zero of x = 2 + 7i with a multiplicity of one.

Every x intercept has multiplicity 1

Explanation

x intercept x=2+7i has multiplicity one

For complex intercepts occurs in pairs

So another x intercept is x=2-7i

From the given table , when h(x) is 0 then x is the x intercepts

other x intercepts from the given table are  -5, 4,10

There are 5 x intercepts with multiplicity one

h(x) has 5 x intercepts . so , the degree of h(x) is 5

Learn more :  brainly.com/question/24450834

Answer:

5

Step-by-step explanation:

mark most brainiest  

Answer:

C on edge

Step-by-step explanation:

The domains of f(x) and g(x) are different. (answer)

The domains of graph f(x) and g(x) are different.

A mathematical operation is commutative if the numbers used can be changed without changing the outcome. As illustrated here, addition and multiplication are two examples of commutative operations. 2+3 = 5

3+2 = 5

2*3 Equals 6

3*2 Equals 6.

To learn more about commutative functions refer to:

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Answer:

y = 64

Step-by-step explanation:

x = 1/8

Substituting x in the equation,

=> 2/(1/8) = y/4

=> 2 x 8 = y/4

=> 16 = y/4

=> y/4 = 16

=> y = 16 x 4

=> y = 64

The value of y will be;

⇒ y = 64

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 2/x = y/4

Now,

Since, The expression is,

⇒ 2/x = y/4

Substitute x = 1/8, we get;

⇒ 2/(1/8) = y /4

⇒ 2 × 8 = y / 4

⇒ 16 × 4 = y

⇒ y = 64

Thus, The value of y = 64

Learn more about the mathematical expression visit:

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[tex]\\ \sf\Rrightarrow f(x)=\sqrt{x+2}-6[/tex]

[tex]\\ \sf\Rrightarrow f(-2)[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{-2+2}-6[/tex]

[tex]\\ \sf\Rrightarrow 0-6[/tex]

[tex]\\ \sf\Rrightarrow -6[/tex]

And

[tex]\\ \sf\Rrightarrow f(-1)[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{-1+2}-6[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{1}-6[/tex]

[tex]\\ \sf\Rrightarrow 1-6[/tex]

[tex]\\ \sf\Rrightarrow -5[/tex]

And

[tex]\\ \sf\Rrightarrow f(2)[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{2+2}-6[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{4}-6[/tex]

[tex]\\ \sf\Rrightarrow 2-6[/tex]

[tex]\\ \sf\Rrightarrow -4[/tex]

And

[tex]\\ \sf\Rrightarrow f(7)[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{7+2}-6[/tex]

[tex]\\ \sf\Rrightarrow \sqrt{9}-6[/tex]

[tex]\\ \sf\Rrightarrow 3-6[/tex]

[tex]\\ \sf\Rrightarrow -3[/tex]

Answer:

$80

Step-by-step explanation:

the original price (in percent) = 100%

the discount (25% off) = - 25%

_________________

the sale price (in percent) = 75% =>

equal to $60

so, the original price =

100/75 × $60 = $80

Now

[tex]\\ \rm\longmapsto 100-25=75\%[/tex]

[tex]\\ \rm\longmapsto \dfrac{75}{100}x=60[/tex]

[tex]\\ \rm\longmapsto x=60\times \dfrac{100}{75}[/tex]

[tex]\\ \rm\longmapsto x=80[/tex]

Answer:

7

Step-by-step explanation:

21/3 = 7

Hope this helps!

Answer:

missing element is 6

Step-by-step explanation:

Given

f(x) = x³ - 2 ( substitute x = 2 )

f(2) = 2³ - 2 = 8 - 2 = 6 ← missing element

ordered pair is (2, 6 )

Answer:

[tex]f(x) = {x}^{3} - 2 \\ f(2) = {2}^{3} - 2 \\ = 8 - 2 = 6 \\ (2 \: \: 6) \\ thank \: you[/tex]

Answer:

Radius = 16

Step-by-step explanation:

Area = πr²

803.84 = 3.14(r²)

256 = r²

√256 = 16

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Convert speeds to m/s

[tex]\\ \rm\longmapsto u=20\times\dfrac{5}{18}=5.05m/s[/tex]

[tex]\\ \rm\longmapsto v=70\times \dfrac{5}{18}=19.4m/s[/tex]

[tex]\boxed{\sf Acceleration=\dfrac{v-u}{t}}[/tex]

[tex]\\ \rm\longmapsto Acceleration=\dfrac{19.4-5.05}{10}[/tex]

[tex]\\ \rm\longmapsto Acceleration=\dfrac{14.3}{10}[/tex]

[tex]\\ \rm\longmapsto Acceleration=143m/s^2[/tex]

Answer: f(-3) = 81

Step-by-step explanation:

f(-3) = 9(-3^2)

f(-3) = 9(9)

f(-3) = 81

Answer:

f(- 3) = 81

Step-by-step explanation:

Substitute x = - 3 into f(x) , that is

f(- 3) = 9(- 3)² = 9(9) = 81

Answer:

The missing numbers are 5, then 35, then 49.

Step-by-step explanation:

I promise it's right :)

Hi ;-)

[tex]7\times7=(\boxed5\times7)+(2\times7)\\\\=\boxed{35}+14\\\\=\boxed{49}[/tex]

Answer:

B

Step-by-step explanation:

thats what it is in khan i think

Answer:

2a+7b+17

Step-by-step explanation:

MATH

Answer:

This was not done by me! Credit to another expert on Brainly named caylus.

As it is impossible to understand who have done what ,

the correct construction should be :

You are given point A, point B and point C.

Construct a line parallel to that line AB passing through point C.

1) Place the compass on point B, and swing an arc that crosses line AB and line BC.

 Label the points D and E.

2) Keep the compass at the same width, and place it on point C.

3) Swing an arc that crosses line BC, and label the point F outside the segment [BC] .

4) Open the compass to the width between points D and E.

 Keeping the compass at the same width, place it on point F.

5) Swing an arc that intersects the arc created from line BC at point C.

6) Mark the intersection of the two arcs as point G.

7) Draw a line through point C and point G.

You just have to discover who has done that.