Nicholas answered 42 out of 50 math problems correctly what percentage of the problems that he answered correctly​

Answer:

The equation of the perpendicular line of the given line is

 [tex]y = \frac{-5}{6} x -\frac{1}{2}[/tex]

Step-by-step explanation:

Step(i):-

Given the equation of the line

         [tex]y = \frac{6}{5} x + \frac{4}{5}[/tex]

cross-multiplication, we get

       5y = 6x +4

The equation of the straight line is 6x - 5y +4=0

The equation of the perpendicular line to the given line is

                        b x - ay +k=0

The equation of the perpendicular line to the given line is   -5x-6y +k=0

This line passes through the point (-3,2)

    ⇒       - 5(-3) -6(2)+k=0

     ⇒       15 -12 +k=0

     ⇒              3 +k=0

       ⇒              k =-3

Step(ii):-

The equation of the perpendicular line is

                                  -5x-6y-3=0

                                  5x + 6y +3 =0

                                        6y = -5x-3

                                          [tex]y = \frac{-5}{6} x -\frac{3}{6}[/tex]

Final answer:-

The equation of the perpendicular line of the given line is

 [tex]y = \frac{-5}{6} x -\frac{1}{2}[/tex]

Answer: 4 1/6

Step-by-step explanation: I BELIEVE the answer is

Answer:

B

Step-by-step explanation:

if b and c are complementary that means b + c = 90

b + 47 = 90

b = 43

since a and b are congruent they are equal

if b = 43 then a = 43

Answer:

Step-by-step explanation:

r = 7 ft

θ =  (26/180)π = (13/90)π radians

arc length = rθ = 7×(13/90)π = (91/90)π ft

Answer:

(-1)^1 if exponent is required, but just -1 is correct and easier

Step-by-step explanation:

(6-7)^3

(-1)^3

(-1)*(-1)*(-1) = -1

so if an exponent is required, then c

Answer:

Evaporation

Step-by-step explanation:

because the temperature rises as go up...

Answer: B

Step-by-step explanation:  Condensation, because water is changing from gas to liquid

Answer: kid your iq is lower than an e girl could make me a sandwich starting with only fanz got this kid hes so lost more lost then hellen keller looking for her glasses your litterly free sultry shut the f-u-c-k up kid you have no earnings you play on a radio your literally free i packed you out thats my d-i-c-k coming up behind you your dads never coming home your free so free you have to play with tv sound

Step-by-step explanation:

Answer:

Step-by-step explanation:

Switch sides:

x/7=17.92

Multiply both sides by 7:

7x/7=17.92*7

simplify:

x=125.44

Answer:

Yes! When simplifying 15:60 by dividing each side by 3, you get 5:20, which is the same as 5:20.

Step-by-step explanation:

Hope this helps <3

Answer:

6.   Not similar

7,   Are similar

Step-by-step explanation:

In problem 6 one triangle is a SSA situation and the other triangle is SAS, we  cannot say the triangles are similar.

In problem 7, both triangles are a SAS situation, so we need to see if corresponding sides are in proportion.

Is 10/25 = 18/45?

10/25 = .4  and 18/45 = .4

Therefore, the triangles are similar

Answer:

2/8, 2/7, 2/5, and lastly 2/3

Step-by-step explanation:

hope this helped ( correct me if i'm wrong)

Answer:

The sidelength of the triangles is 6 feet and 8 feet.

Step-by-step explanation:

Given that,

The Hypotenuse of a right triangle = 10 feet

Let the shorter leg is x. It means the longer leg is (x+2).

For a right triangle,

Hypotenuse²=base²+perpendicular²

So,

[tex]10^2=x^2+(x+2)^2\\\\100=x^2+x^2+4+4x\\\\100=2x^2+4x+4\\\\2x^2+4x+4-100=0\\\\2x^2+4x-96=0\\\\x^2+2x-48=0\\\\(x+8)(x-6)=\\\\x=-8,6[/tex]

The side length of a triangle can't be negative. It means that the length of the shorter length is 6 feet and that of the longer leg be 8 feet.

Answer: -8 6

Step-by-step explanation:

Answer:

y-5=-3(x-1)           simplified: y=-3x+8

Step-by-step explanation:

y-y1=m(x-x1)

plug in point and slope given

y-5=-3(x-1)

y=-3x+3+5

y=-3x+8

Answer:

Substitution, but this system of equations has no solution.

Step-by-step explanation:

2x-4y=10

2y+6=x

----------------

2(2y+6)-4y=10

4y+12-4y=10

12=10

no solution.

Answer:

I think the answer is (d): 20/29

Answer:

20/29

Step-by-step explanation:

The cos is Adjacent over Hypotenuse. Adjacent to C is 20. Hypotenuse is 29.

Adjacent/Hypotenuse. 20/29. :)

Answer:

area= 449.2984 cm^2   if I understand correctly that the volume is 648 cm^3

Step-by-step explanation:

side length=the cube root of 648

side length=8.6535 cm

area=8.6536x8.6535x6=449.2984 cm^2

Answer:

A

Step-by-step explanation:

four of the sides are equal to 18mm, so that would be the 4(18mm), and then the two other sides are equal to 24mm, which is 2(24mm). Your full equation would be:

P= 4(18mm) + 2(24mm)

A

Answer:

P = 4(18 mm) + 2(24 mm)

Step-by-step explanation:

Answer:

[tex]L=480\ kg-m^2/s[/tex]

Step-by-step explanation:

Given that,

Mass of a person, m = 80 kg

The distance from the centre of the platform, r = 2 m

The tangential speed of the platform, v = 3 m/s

We need to find the angular momentum of the person. The formula for the angular momentum is given by :

[tex]L=mvr\\\\L=80\times 3\times 2\\\\L=480\ kg-m^2/s[/tex]

So, the required angular momentum is equal to [tex]480\ kg-m^2/s[/tex].

Answer:

Tangential speed is 0.68 m/s

Explanation:

It is given that,

Mass of the beetle, m = 0.023 kg

It is placed at a distance of 0.15 m from the center of record i.e. r = 0.15 m.

If it takes 0.070 n of force to keep the beetle moving in a circle on the record i.e. centripetal force acting on it is, F = 0.070 N

We have to find the tangential speed of the beetle. The formula for centripetal force is given by :

v is tangential speed

v = 0.675 m/s

or

v = 0.68 m/s

Hence, the correct option for tangential speed is (A).

Step-by-step explanation:

Answer:

4 lbs left after 5 days

Step-by-step explanation:

First, you need to step up an equation!

You know that Soomin has a total of 20 pounds and that she's using it, so you are going to use subtraction.

She uses 3 1/5 pounds per day so you write:

20 - 3 1/5x

and you know that she wants to know how much she has left after 5 days so you replace the x with 5:

20 - (3 1/5) * 5

Multiply first:

20 - 16

After Subtracting you get the answer:

4 lbs left

Answer:

4 lbs

Step-by-step explanation:

If she gives 3.2 each day you can multiply by 5 to get 16 then subtract 20 - 16 to get 4

Answer:

x = 16√3

y = 8√3

Step-by-step explanation:

First, to figure out x, put the side we already know (24) over the cosine of the angle we know (30).

x = 24/cos(30)

(cos(30) is the same as √3/2)

x = 24/√3/2

Step 1: Multiply by 2/√3

x = (24 * 2)/√3

Step 2: Rationalize the denominator by multiplying by √3

x = √3(24 * 2)/√3 * √3

Step 3: √3 squared is 3.

√3(24 * 2)/3

Step 4: Multiply 24 by 2 to get 48.

x = √3(48)/3

Divide √3(48) by 3 to get 16√3

x = 16√3

Before we figure out y, we need to find you what 16√3 squared is.

((16(√3))²

Step 1: Expand the above equation.

16²(√3)²

Step 2: Square 16 to get 256.

256(√3)²

Step 3: √3 squared is 3.

256(3)

Step 4: Multiply 256 by 3 to get 768.

768

Now, subtract 576 (24 squared) from 768 to get 192. Find the square root of that, which is 8√3. (192 = 8² * 3; rewrite as √8²√3, then take the square root of 8²

Answer:

x=-3, y=-22/3. (-3, -22/3).

Step-by-step explanation:

3y+7=5x

7x-3y=1

---------------

5x-3y=7

7x-3y=1

--------------

-5x+3y=-7

7x-3y=1

----------------

2x=-6

x=-6/2=-3

7(-3)-3y=1

-21-3y=1

3y=-21-1

3y=-22

y=-22/3

Answer:

y= -2/3x +4

Step-by-step explanation:

(0,4) and (6,0)

m= (y2-y1)/(x2-x1)

m= (0-4)/(6-0)

m= -2/3

y-y1=m(x-x1)

y-4= -2/3(x-0)

y-4= -2/3x

y= -2/3x +4

Answer:

D

Step-by-step explanation:

Almost positive it's D. When you take two points on the line, you'll get a slope of 2/3. Since it's going down left to right, it's going to be negative. SOOO -2/3. The y-intercept is 4 because, well that's where the line crosses the y-axis.

Answer:

5

Step-by-step explanation:

30 divided by 6 = 5

Answer:

Jane got 42 votes.

Step-by-step explanation:

Step 1: Put 70% into decimal.

0.7

Step 2: Multiple the class of 60 by 0.7 to get the winner's votes:

42

Answer:

3/2 miles per hour

Step-by-step explanation:

How do I find miles per hour from 2 fractions? For Example: If I ran for 1/2 miles when It lasted 1/3 of an hour. Would It be 1/6?

Given data

distance= 1/2 miles

time= 1/3 hour

Speed= distance/time

Substitute

Speed= 1/2/1/3

Speed= 1/2*3/1

Speed= 3/2 miles per hour

Answer:

6.33

Step-by-step explanation:

Given the coordinates;

G(-4,2), O(5,-1), and T(10,8).

Midpoint of GT is expressed as;

M = (-4+10/2, 2+8/2)

M = (6/2, 10/2)

M = (3, 5)

Hence the midpoint of GT is (3,5)

Find the length of M and O

M (3,5) and O(5,-1)

MO = √(3-5)²+(5+1)²

MO = √2²+6²

MO = √4+36

MO = √40

MO  = 6.33

Hence the length of the segment joining the midpoint of GT and O is 6.33

The  length of the segment joining the midpoint of GT and O is 6.33.

Midpoint of GT is expressed as;

[tex]M = (-4+10\div 2, 2+8\div 2)\\\\ = (6\div 2, 10\div 2)[/tex]

 = (3, 5)

Hence the midpoint of GT is (3,5)

Find the length of M and O

M (3,5) and O(5,-1)

[tex]MO = \sqrt (3-5)^2+(5+1)^2\\\\= \sqrt(2^2+6^2)\\\\= \sqrt 4+36\\\\= \sqrt 40[/tex]  

= 6.33

Learn more: brainly.com/question/16911495

Answer:

The answer is 27.25.

Step-by-step explanation:

Answer:B

Step-by-step explanation:

The measure of angle BCA is 81 degrees.                                            

Answer:

[tex]2x + x + \frac{1}{x} + \frac{2}{3x} \\ = \frac{6 {x}^{2} + 3 {x}^{2} + 3 + 2 }{3x} \\ = \frac{9 {x}^{2} + 5 }{3x} [/tex]

Step-by-step explanation:

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