The sixth-grade science class found that 20% of the students in the school were left- handed. If there were 800students in the school, how many were left-handed?

Answer:

The ball will land after 5.14s.

Answer:

x= 5/12 or 0.42

Step-by-step explanation:

[tex]\frac{2x - 3}{3x + 2} = \frac{-2}{3} \\\\x= \frac{5}{12}[/tex]

Answer:

[tex]\angle EHG = 80[/tex]

Step-by-step explanation:

Given

ABC ∼ EHG

See attachment

Required

Determine [tex]\angle EHG[/tex]

First, we calculate x in ABC

[tex]x + 2x + 60= 180[/tex]

[tex]3x + 60= 180[/tex]

[tex]3x = 120[/tex]

[tex]x = 40[/tex]

The corresponding angle to [tex]\angle EHG[/tex] is [tex]\angle ABC[/tex]

and

[tex]\angle ABC = 2x[/tex]

[tex]\angle ABC = 2 * 40[/tex]

[tex]\angle ABC = 80[/tex]

Hence:

[tex]\angle EHG = 80[/tex]

Answer:

10a+5b-30

Step-by-step explanation:

Apply the distributive law = ma + mb +  mc

5 (2a+b-6) = 5 2a + 5b + 5 (-6)

Then Simplify: 5 2a + 5b + 5 (-6)

= 10a+5b-30

Hope this helps :D

Answer:

B

The domain of the graph is all real numbers less than or equal to 0.

Step-by-step explanation:

just took the test

The statement for the graph will be the domain of the graph is all real numbers less than or equal to 0.

Given,

Graph of function f(x) = √-x

Here,

If there is a function f(x) = √-x , then the domain is the set of all values that x can take and the range is the set of all the values that y can take for the function to exist.

Thus, the domain of the graph is all real numbers less than or equal to 0.

Therefore option B is correct.

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Answer:

4.8km

Step-by-step explanation:

4x2.3=9.2

14-9.2=4.8km

Answer:

x=4

y=2

Step-by-step explanation:

2x+2y=12

x−y=2

​In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.

2x+2y=12,x−y=2

To make 2x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 2.

2x+2y=12,2x+2(−1)y=2×2

Simplify.

2x+2y=12,2x−2y=4

Subtract 2x−2y=4 from 2x+2y=12 by subtracting like terms on each side of the equal sign.

2x−2x+2y+2y=12−4

Add 2x to −2x. Terms 2x and −2x cancel out, leaving an equation with only one variable that can be solved.

2y+2y=12−4

Add 2y to 2y.

4y=12−4

Add 12 to −4.

4y=8

Divide both sides by 4.

y=2

Substitute 2 for y in x−y=2. Because the resulting equation contains only one variable, you can solve for x directly.

x−2=2

Add 2 to both sides of the equation.

x=4

The system is now solved.

x=4,y=2

Correct choice is B) x=4.

answer is 4

because y=2 then you subsistute it in and then you find X

x-y=2 turns to x=y+2 then you subsistute that into x of the equation 2x+2y=12 which then is 2(y+2)+2y =12 and you should get y=2 then you grab the other equation x-2=2 and you should get x=4

Answer:

41.4feet

Step-by-step explanation:

Using the SOH CAH TOA identity

Given the following

Distance of Rafael from the tower = 55feet = Adjacent

Angle of elevation = 37degrees

Required

Height of the tower = Opposite

Since Tan theta = opp/adj

Tan 37 = x/55

x = 55tan37

x = 55(0.7536)

x = 41.4

Hence the tower is 41.4feet up the viewing platform

Answer:

Step-by-step explanation:

[tex]\frac{a^{m}}{a^{n}}=a^{m-n}\\\\a^{-m}=\frac{1}{a^{m}}\\\\\\\frac{x^{2}y^{-3}}{x^{5}y^{2}}=x^{(2-5)}*y^{(-3-2)}\\\\ = x^{-3}*y^{-5}\\\\=\frac{1}{x^{3}y^{5}}[/tex]

Remember that exponents (or powers) of the same basis can be divided by subtracting the exponents. For example [tex]\frac{x^n}{x^m} =x^{n-m}[/tex]

Using this information, we can easily rearrange our equation to look like this:

[tex]\frac{x^2}{x^5} \frac{y^{-3}}{y^2}[/tex]

Now that the basis are the same, we can conveniently subtract the exponents to get the following result:

[tex]x^{-3}y^{-5}[/tex] or [tex]\frac{1}{x^3y^5}[/tex]. And that's the final answer.

Answer:

Option A

37°

Step-by-step explanation:

4x+ 2 = 150° [Vertically Opposite Angles]

=> 4x = 150 - 2

=> 4x = 148

[tex] = > x = \frac{148}{4} [/tex]

=> x = 37° (Ans)

Answer:

(4x+2)°=150°[by vertical opposite angles]

4x=150-2

4x=148

x=148/4

x=37

Answer:

10201

Step-by-step explanation:

=(101)²

=(100+1)²

={100²+2(100)(1)+1²} [(a+b)²=a²+2ab+b²]

=10000+200+1

=10201

Solution :-

Given,

We need to solve it using identities.

>> (100 + 1)^2

As we know that,

>> (a + b)^2 = a^2 + b^2 + 2ab

Here,

Using the identity we gets,

>> (100)^2 + (1)^2 + 2(100)*(1)

>> 10000 + 1 + 200

>> 10000 + 201

>> 10201

p = 9 becsude 9 x 9 = 81 so yeah

Answer:

-3X-27 that's the answer

Step-by-step explanation:

that's the answer to your question have a good day!

Answer:

All the given measurements of the right triangles are correct

Step-by-step explanation:

Check the three diagram and determine the three sides of the right triangle that correspond to Pythagoras triple.

For the first triangle:

12² + 5² should be equal to  13²

144 + 25  =  13²

169 = 13²

Thus, 5, 12 and 13 corresponds to three sides of right triangle.

For second diagram;

24² + 7² should be equal to 25²

576 + 49 = 25²

625 = 25²

Thus, 7, 24 and 25 corresponds to three sides of right triangle.

For third diagram;

3² + 4² should be equal to 5²

9 + 16 = 5²

25 = 5²

Thus, 3, 4 and 5 corresponds to three sides of right triangle.

Answer:

Step-by-step explanation:

The anwer is 6

Answer:

If I'm thinking about this right it should be 6

Answer:

It is a square because all the sides are equal

Step-by-step explanation:

PLEASE HELP!! SHOW ALL WORK FOR BRAINLIEST

Quadrilateral EFGH has vertices at E(10,4), F(16,4), G(16,10) and H(10,10). Based on the properties of the diagonals, is quadrilateral EFGH a rectangle, a rhombus, or a square?? Use the distance and slope formula to prove your conclusion. Must show all work, please

Using the distance formula

√(x2 - x1)² + (y2 - y1)²

When given vertices x1, y1, and x2, y2

We find the length of each side

For E(10,4), F(16,4)

√(16 - 10)² + (4 - 4)²

= √6²

= √36

= 6 units

F(16,4), G(16,10)

= √(16 - 16)² + (10 - 4)²

= √6²

= √36

= 6 units

G(16,10) and H(10,10)

= √(10 - 16)² + (10 - 10)²

= √-6²

= √36

= 6 units

E(10,4), and H(10,10)

It is a square because all the sides are equal

Answer:

it's still 50%

each flip is an independent probability. what happened the first 19 times is irrelevant, because it's still a 50-50 chance on any independent flip.

Answer:9 ounces of flours

Step-by-step explanation:90:9 ratio or sugar to flour

The value of the f(3) is -8 or f(3)=-8 if the equation of the function f(x) = -8(3)⁰ or f(x) = -8 option (C) is correct.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

For the function, f(x) = -8

f(x) = -8

For all values of x:

The above function can be written as follows:

f(x) = -8x⁰

PLug x = 3 in the function:

f(x) = -8(3)⁰

f(x) = -8

Thus, the value of the f(3) is -8 or f(3)=-8 if the equation of the function f(x) = -8(3)⁰ or f(x) = -8 option (C) is correct.

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Answer:

3x =15- 9

3x=6

x= 2

so the solution of this equation is 2

Answer:

X=6

Step-by-step explanation:

three multiplied by two is six. six plus nine equals 15. therefore x=6

Answer:

11

Step-by-step explanation:

21/3+4

7+4

11

.......

Answer: The chosen topic is not meant for use with this type of problem. Try the examples below.

Step-by-step explanation:

Answer:

y-intercept is 30

Step-by-step explanation:

Answer:

2y=-x+11

Step-by-step explanation:

Answer:

thrid one

Step-by-step explanation:

Answer:

If im correct

EG and FH

Answer:

The slope is -3.75 or -15/4.

Step-by-step explanation:

The formula for slope is the change in y over the change in x.

To do this, you subtract 7-3 to get you 4 on the bottom of the fraction and -7-8 which is -15.

So pretty much, you get -15/4. :)

Answer:

This is your answer

Answer:

Multiplication property of equality

Step-by-step explanation:

I'm sorry if its wrong

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Have a good one