a triangle has a side length of 5.4 and 7 x x=​

Answer:

x = ± [tex]\sqrt{\frac{y}{a} }[/tex]

Step-by-step explanation:

Given

y = ax² ( divide both sides by a to isolate x² )

[tex]\frac{y}{a}[/tex] = x² ( take the square root of both sides )

x = ± [tex]\sqrt{\frac{y}{a} }[/tex]

Answer:

4%

Step-by-step explanation:

Volume of sphere

v = (4/3)πr^3

Volume moon/ volume planet

We don't actually need the numeric value of the radius

just the 35% ratio

Radius of moon = .35 radius of planet

Vm/ Vp = (4/3)π(.35r)^3 / (4/3)π(r)^3

Cancel like terms

Vm / Vp = .35^3

Vm / Vp = 0.042875

Expressed as a percentage

Vm / Vp = 4.2875%

Rounded

Vm / Vp = 4%

Answer:

y = 42x + 2

Step-by-step explanation:

The equation of a line is expressed as y = mx+b

Slope = y2-y1/x2-x1

Slope = 128 - 2/3-0

Slope m = 126/3

Slope = 42

Since the y intercept is (0, 2), hence b = 2

Get the equation;

Recall that y = mx+b

y = 42x + 2

This gives the required equation

Answer:

4 is the diameter

Step-by-step explanation:

Given:

C = 4π

Formula for circumference:

C = 2πr

Work:

C = 2πr

4π = 2πr

r = (4π)/(2π)

r = 2

Diameter:

d = 2r

d = 2(2)

d = 4

Answer:

6 got off at NJ

Step-by-step explanation:

if u write an equation it would be 44-x+2x=50. -x+2x=x so the equation would now be 44+x=50. If you subtract both sides by 44, it would be x=6. x was the number of people that got off at NJ so 6 people got off there.

Hope this helps!

Answer:

Step-by-step explanation:

Use the formula of distance between the two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex],

Distance = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

1. Distance between A(3, 4) and B(8, 12),

  AB = [tex]\sqrt{(8-3)^2+(12-4)^2}[/tex]

  AB = [tex]\sqrt{25+64}[/tex]

        = [tex]\sqrt{89}[/tex]

        ≈ 9.43

2. Distance between C(-2, 10) and D(3, -2),

   CD = [tex]\sqrt{(3+2)^2+(-2-10)^2}[/tex]

         = [tex]\sqrt{25+144}[/tex]

         = [tex]\sqrt{169}[/tex]

         = 13.00

3. Distance between X(20, 4) and Y(17, 0),

    XY = [tex]\sqrt{(20-17)^2+(4-0)^2}[/tex]

          = [tex]\sqrt{3^2+4^2}[/tex]

          = [tex]\sqrt{25}[/tex]

          = 5.00

4. Distance between E(2, -1) and M(6, 9),

    EM = [tex]\sqrt{(2-6)^2+(-1-9)^2}[/tex]

          = [tex]\sqrt{16+100}[/tex]

          = [tex]\sqrt{116}[/tex]

          = 10.77

Answer:

[tex]14.1[/tex]

Step-by-step explanation:

Since we have two sides of a triangle and the angle between them, we can use the Law of Cosines.

For any triangle, the Law of Cosines states:

[tex]b^2=a^2+c^2-2ac\cos B[/tex], where [tex]a[/tex], [tex]b[/tex], and [tex]c[/tex] are all interchangeable.

Substituting given values, we have:

[tex]b^2=9^2+19^2-2(9)(19)\cos 45^{\circ},\\b^2=200.169480834,\\b\approx \boxed{14.1}[/tex]

Answer:

 (x +8)^2 +(y -15)^2 = 289

Step-by-step explanation:

Answer:

(x +8)^2 +(y -15)^2 = 289

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

f(x)= -2(x²+8x+16)-5

[tex] -2 {x}^{2} - 16x - 32 - 5 \\ f(x)= - 2 {x}^{2} - 16x - 37[/tex]

Answer:

6.12 x 10⁵

Step-by-step explanation:

You just multiply 3.4 and 1.8 which gives 6.12

And for the notation you add the exponents 2 and 3 which give 5

Answer:

6.12 × 10^5.

Step-by-step explanation:

3.4 × 10² × 1.8 × 10³

To solve this, we can group.

[tex](3.4 * 1.8) * (10^2 * 10^3) =[/tex]  [tex](6.12) *(10^5).[/tex]

Therefore,[tex](3.4 *1.8)*(10^2*10^3) = 6.12 * 10^5[/tex]

Answer:

1.2

Step-by-step explanation:

3. 0.3+0.2+0.1

Multiply 3 and 0.3 to get 0.9

0.9+0.2+0.1

Add 0.9 and 0.2 to get 1.1

1.1+0.1

Add 1.1 and 0.1 to get 1.2

1.2

Answer:

Step-by-step explanation:

Answer:

5,200

Step-by-step explanation:

[tex](4\frac{1}{3} * 5\frac{1}{3} * 8\frac{1}{3} * 6 )/ 2 = 10,400/2 = 5,200[/tex]

Answer:

[tex]Pr = \frac{1}{870}[/tex]

Step-by-step explanation:

Given

[tex]n =30[/tex]

Required

Probability of selecting 2 toys of different types

From the question, we understand that all toys are different i.e. 1 of each type.

And the selection is without replacement;

So, after the first toy is selected; there are n - 1 toys left.

So, the probability is:

[tex]Pr = \frac{1}{n} * \frac{1}{n - 1}[/tex]

Substitute [tex]n =30[/tex]

[tex]Pr = \frac{1}{30} * \frac{1}{30- 1}[/tex]

[tex]Pr = \frac{1}{30} * \frac{1}{29}[/tex]

[tex]Pr = \frac{1}{30*29}[/tex]

[tex]Pr = \frac{1}{870}[/tex]

Answer:

[tex]first \: answer \: is \: true[/tex]

Answer:

2

Step-by-step explanation:

rise/run 4/2

Answer:

21 m

Step-by-step explanation:

1:2.5 = 8.4: x

8.4*2.5 = 21

Answer: 3x=3

Step-by-step explanation: Let's divide this into parts--

1. Adding the x variables: -2x+5x or 5x-2x = 3x.

2. Adding the y variables: y-y or -y+y = 0. (The negative and the positive y cancel each other out.)

3. Adding the numbers: 8-5 or -5+8 = 3.

Now just put it back into an equation: 3x + 0 = 3.

We don't need to add the 0, so the equation changes into 3x = 3.

Answer:

6 runners

Step-by-step explanation:

Complete question

A relay race covers 1 1/2 kilometers, and each runner on a team will run 1/4 of a kilometer.  How many runners are needed for a team?

Given that;

1 runner = 1/4 km

If a relay race covers  1 1/2 km, hence;

x runner = 1 1/2 km

Divide both expressions

1/x = (1/4)÷(1 1/2)

1/x = 1/4 ÷ 3/2

1/x = 1/4 * 2/3

1/x = 2/12

Cross multiply

2x = 12

x = 12/2

x = 6

Hence 6 runners are needed for the race

Answer:

Lateral surface area means curved surface area

Total surface area means curved surface area + surface area of the bottom and top.

So i think its false

Step-by-step explanation:

Answer:

x = 9°

Step-by-step explanation:

The full arc of the angles equals 360°. So, we can subtract all of the measures of angles we are given from the total 360 to find the value of x.

We can add the given angles together and subtract the sum from 360 as well.

73 + 63 + 89 = 225

This means the measure outside 15x is a combines 225°.

Now, subtract the known measures from our total, 360.

360 - 225 = 135

The unknown, or 15x, is equal to 135°.

15x = 135

Solve this like a normal equation. Divide both sides by 15 to isolate x and solve for the variable.

[tex]\frac{15x}{15}[/tex] = [tex]\frac{135}{15}[/tex]

x = 9

x is equal to 9°.

We can check by adding all our values together again to see if they amount to 360°.

73 + 63 + 89 + 15(9) = 360

360 = 360

The equation is correct, so we can be sure that we are right.

The answer is x = 9°.

Good luck ^^

Answer: should be x> -18

Step-by-step explanation: hope this helps

Answer:

x > -18

Step-by-step explanation:

8 > 2 - x/3

Multiply the equation by 3.

24 > 6 - x

Flip around to make working with it easier.

6 - x < 24

Subtract 6 from both sides.

-x < 18

Divide by -1. When dividing by a negative in an inequality, flip the sign.

x > -18.

Answer:

393

Step-by-step explanation:

(32)(12) + 9

This comes out to 384 + 9 = 393

Answer:

$25.00

Step-by-step explanation:

well start of by using the rules of 3.

( always remeber that multiply is diagonal and divide left by one on the left)

Answer:

Step-by-step explanation:

?????????/

Answer:

f

Step-by-step explanation:

because it's less than mine not less nine

Answer:

theanswer is D.72

Step-by-step explanation:

this.is because she blocked 36 balls in the first 4 games

As per the given data, it can predict that after 8 games the number of blocks would be 72 balls. Option c is correct.

Given that,
Based on these results, which is the most reasonable balls she will have blocked after 8 games is to be determined.

The average of the values is the ratio of the total sum of values to the number of values.

Here,
Average balls blocked in 4 games = 8 + 12 + 9 + 7 / 4 = 36 / 4
                                                          = 9
For the 8 games the number of ball blocked would be  = 8 × 9 = 72

Thus, as per the given data, it can predict that after 8 games the number of ball blocks would be 72 balls. Option c is correct.

Learn more about averages here:

brainly.com/question/24057012

#SPJ2

Answer:

i need points lol

Step-by-step explanation:

sorryyyyy