HELP! 7th grade math! GIVE CORRECT ANSWER AND YOU WILL GET BRAINLIEST!!

Answer:

B.

Step-by-step explanation:

Angles that form a straight line sum to 180 and are supplementary.  Angles TKL and TLK are supplements of the congruent angles marked, TLR and SKT.

Answer:

A. 7

Step-by-step explanation:

7= 1*7

8= 1*8= 2*4

9= 1*9= 3*3

10= 1*10= 2*5

Answer:

$3029.94

Step-by-step explanation:

We can use the simple interest rate (appreciation) equation: A = P(1 + r)^t

Simply plug in our variables to find our answer:

A = 2400(1 + 0.06)^4

And we should get 3029.94 as our answer!

Hey there! :)

Answer:

C.

Step-by-step explanation:

(f · g)(x), substitute in g(x) for 'x':

[tex](f og)(x)=\frac{4}{\frac{1}{8x}+ 7 }[/tex]

Make denominator contain a common denominator:

[tex](fog)(x) = \frac{4}{\frac{1+56x}{8x} }[/tex]

Dividing fractions, so multiply by reciprocal:

[tex](fog)(x) = 4 * \frac{8x}{1+56x}[/tex]

Multiply and simplify:

[tex](fog)(x) = \frac{32x}{1+56x}[/tex]

Therefore, the correct answer is C.

Answer:

<x = 36°

Step-by-step explanation:

In a regular decagon, Every interior angles is equal to 144.

So,

<x + 144 = 180 [Angles on a straight line]

<x = 180-144

<x = 36°

Answer:

f(x) = 3x – 1

Step-by-step explanation:

f(x) = 3x – 7 also known as y = 3x – 7

Translated 6 units up:

y (+ 6) = 3x – 7

y + 6 = 3x – 7

y = 3x – 13

2 units right:

y = 3(x + 2) – 7

y = 3x + 6 – 7

y = 3x – 1

Answer:

Step-by-step explanation:

the function f(x)=3x-7 is:

vertically compressed by a factor of three

down 7 units

now we translate it 6 units up

so... f(x)=3x-7⇒f(x)=3x-7+6⇒f(x)=3x-1

to translate a linear function horizontally, you have to consider:

f(x-h)=mx+b, where h is the horizontal shift,

thus, to translate f(x)=3x-1     2 units right, we do it :

f(x-2)=3x-1  

f(x)+f(-2)=3x-1  

f(-2)=3*(-2)-1

f(-2)=-6-1

f(-2)=-7

f(x)+(-7)=3x-1  

f(x)-7=3x-1  

f(x)=3x+6

Answer:

9

Step-by-step explanation:

94% of 150=141

150-141=9

Answer:

3

Step-by-step explanation:

[tex]answer \\ < a = 114 \\ please \: see \: the \: attached \: picture \: for \: full \: solution \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment[/tex]

Answer:

Solution,

Let the age of sister be X

Let the age of boy be 2x

Now,

Five years ago,

[tex]3(x - 5) = 2x - 5 \\ or \: 3x - 15 = 2x - 5 \\ or \: 3x - 2x = - 5 + 15 \\ x = 10[/tex]

Again,

Replacing value,

[tex]age \: of \: boy = 2x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times 10 \\ \: \: \: \: \: \: \: \: \: \: \: = 20[/tex]

hope this helps..

Good luck on your assignment..

Answer:

£9950.72

Step-by-step explanation:

Hello,

The question above relates to compound interest and to solve it, we'll require the formula needed.

A = P(1 + r/n)^nt

A = compound interest

P = principal = £9200

r = rate = 4% = 0.04

n = number of times the interest is compounded = 1

T = time = 2 years.

A = 9200 × (1 + 0.04/1)^(1×2)

A = 9200 × (1.04)²

A = 9200 × 1.0816

A = 9950.72

Dan would have £9950.72 after 2 years

Answer:

Step-by-step explanation:

Since the drawing is in millimeters (mm), and the scale is 1 cm to 1 m, then, considering that 10 mm equal 1 cm, we can easily convert the given values to cm by simply dividing the numbers by ten, and then use those numbers as real meters based on the

Answer:

3x - 2y

= 3(2) - 2(10)

= 6 - 20

= -14

the answer is C

Answer:

[tex]x=2[/tex]

[tex]y=10[/tex]

So the multiply 3 × 2

[tex]3 * 2=6[/tex]

Then multiply 2 × 10

[tex]2 * 10=20[/tex]

Then subtract 6 - 20.

This shows that the answer will be negative.

[tex]6-20= -14[/tex]

So the answer is [tex]-14[/tex]

Hope this helps

(＾▽＾)

Answer:

10:07 am

Step-by-step explanation:

please give me brainliest patty!!

Answer:

here

Step-by-step explanation:

a= 4. 8, 12

b= 4, 7, 10

d= 3, 6, 11

e= 3, 12, 27

Answer:

x = -5 or x = -4/3

Step-by-step explanation:

First possibility.

|2x − 1| = |4x + 9|

2x - 1 = 4x + 9

2x - 4x = 9 + 1

-2x = 10

x = 10/-2

x = -5

Second possibility.

2x - 1 = - (4x+9)

2x - 1 = -4x - 9

2x + 4x = -9 + 1

6x = -8

x = -8/6

x = -4/3

Answer:

[tex] |2x - 1| = |4x + 9| [/tex]

this equation can be separated into 2 possible cases :

[tex]2x - 1 = 4x + 9[/tex]

and

[tex]2x - 1 = - (4x + 9)[/tex]

solve the 1st possible case:

[tex]2x - 1 = 4x + 9[/tex]

[tex]2x - 4x = 9 + 1[/tex]

[tex] - 2x = 10[/tex]

[tex]x = - \frac{10}{2} [/tex]

[tex]x = - 5[/tex]

solve the 2nd possible case:

[tex]2x - 1 = - (4x + 9)[/tex]

[tex]2x - 1 = - 4x - 9[/tex]

[tex]2x + 4x = - 9 + 1[/tex]

[tex]6x = - 8[/tex]

[tex]x = \frac{ - 8}{6} [/tex]

[tex]x = - \frac{4}{3} [/tex]

so the x value for this equation is:

x = -5 or x = -1.333

Answer:

5. 8

6. 18

Step-by-step explanation:

5.

a(a^2 + a - 1) + 7 =

= a^3 + a^2 - a + 7

For a = -1,

= (-1)^3 + (-1)^2 - (-1) + 7

= -1 + 1 + 1 + 7

= 8

6.

2ab(a + b) - 3ab(a - b) =

= 2a^2b + 2ab^2 - 3a^2b + 3ab^2

= -a^2b + 5ab^2

For a = 1 and b = 2,

= -(1)^2(2) + 5(1)(2)^2

= -1(2) + 5(4)

= - 2 + 20

= 18

Answer:

Step-by-step explanation:

a(a^2 + a -1) +7

a^3+a^2-a+7

f(-1)=(-1)^3+(-1)^2-(-1)+7

f(-1)=-1+1+1+7

f(-1)=0+1+7

f(-1)=8

2ab(a+b)-3ab(a-b)

2a^2*b+2ab^2-3a^2*b+3ab^2

−a^2*b+5ab^2

when a=1 and b=2

−a^2*b+5ab^2

−(1)^2*2+5*1*2^2

-1*2+5*1*4

-2+5*4

-2+20

18

Answer:

0.00054

Step-by-step explanation:

Gold ball: we have one chance of choosing the correct ball from 1 to 48, so the probability is 1/48

White balls: we will pick 4 numbers from 1 to 51, so the total possibilities of groups of numbers we can choose is a combination of 51 choose 4:

C(51, 4) = 51! / (4! * 47!) = 51*50*49*48/(4*3*2)

If we want to correctly guess two numbers, we have groups of 2 winning numbers in the 4 numbers we guess, so a combination of 4 choose 2, and we also have to incorrectly guess the other 2 winning numbers in the 47 remaining numbers we didn't choose, so a combination of 47 choose 2:

C(4, 2) = 4! / (2! * 2!) = 4*3/2 = 6

C(47, 2) = 47! / (2! * 45!) = 47*46/2

The probability of the white balls case is the two combinations above over the total number of cases (the first combination we calculated):

P = C(4, 2) * C(47, 2) / C(51, 4)

P = (6 * 47 * 46/2) / (51 * 50 * 49 * 48/(4*3*2))

P = (3 * 47 * 46 * 4 * 3 * 2) / (51 * 50 * 49 * 48) = 0.026

Then the final probability is the probability in the gold ball case times the probability in the white balls case:

P = (1/48) * (3 * 47 * 46 * 4 * 3 * 2) / (51 * 50 * 49 * 48) = 0.00054

Answer:

[tex] \boxed{\sf f(-3) = 9} [/tex]

Given:

[tex] \sf f(x) = {x}^{2} - 2x[/tex]

To Find:

Value of f(x) when x = -3

Step-by-step explanation:

[tex] \sf \implies f(x) = {x}^{2} - 2x \\ \\ \sf \implies f( - 3) = {( - 3)}^{2} - 2 ( - 3) \\ \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3 - ( - 6) \\ \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =3 + 6 \\ \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =9[/tex]

Answer:

You could simply go to your course selection book (if there is one) and see if it's there. If not, then ask your guidance counselor for help or if you can automatically advance.

Step-by-step explanation:

Answer: I think its A

Step-by-step explanation:

8x(7y+2)-4(7y+2)

=56xy+16x-28y-8

Answer:

56xy+16x-28y-8

Step-by-step explanation:

you have to use the FOIL method to solve this is problem which is

F-First

O-Outer

I-Inner

F-Last

Answer:

B.

The 1/5 and 5 cancel each other out and you are left with 7

Hope this helps

Step-by-step explanation:

Answer:

See attachment below

Step-by-step explanation:

For the first option, we are given m = - 2 / 3, b = 3. This is likely in the point - slope form y = mx + b, where m = slope and b = y - intercept. Thus, the equation of the line in point - slope form given this information, should be y = - 2 / 3x + 3. It seems as if none of the following equations match this form, so let us interchange the equation a bit,

y = - 2 / 3x + 3,

y + 2 / 3x = 3,

2x + 3y = 9 - Option C

_______________________________________________________

Next we are given m = - 3 / 2, and that this line passes through the point ( 4, - 1 ). Substitute m as - 3 / 2, x as 4, y as - 1, knowing point ( 4, - 1 ), into the form y = mx + b - solving for b.

- 1 = ( - 3 / 2 )( 4 ) + b,

b = 5,

Thus the equation in point - slope form should be y = - 3 / 2x + 5. None of the choices match this, so let us again alter the equation,

y = - 3 / 2x + 5,

2y = - 3x + 10,

- 2y = 3x - 10 - Option A

_______________________________________________________

( 6, 3 ) and ( 3, 1 ) is given to lie on this line. The slope of the line should be as follows,

Slope = 3 - 1 / 6 - 3 = 2 / 3

Now let us determine the y - intercept ( b ) by substitute one of the points, say ( 6, 3 ). In this case x = 6, and y = 3,

3 = ( 2 / 3 )( 6 ) + b,

b = - 1,

y = 2 / 3x - 1 = Option D

Take a look at the attachment below for further help;

Answer:

Step-by-step explanation:

Pi is a number - approximately 3.142. It is the circumference of any circle divided by its diameter. The number Pi, denoted by the Greek letter π - pronounced 'pie', is one of the most common constants in all of mathematics. It is the circumference of any circle, divided by its diameter.

First 100 decimal places

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 ...

Answer: 3.14159265359

Answer:

  see below

Step-by-step explanation:

There are 4 dots in categories 0 and 1; 9 dots in categories 2 and 3; and 2 dots in categories 4 and 5. The histogram with bar lengths 4, 9, and 2 is the appropriate choice.

Answer:

A, B, and D

Step-by-step explanation:

E is discarded, since the number 7 does not exist on a die.

F is discarded because there are no letters in a die

C is discarded because the elements are placed backwards

Answer:A

Step-by-step explanation:

Answer:

Your answer is C

Step-by-step explanation:

Answer:

[tex]\left[\begin{array}{ccc}9\\10\\\end{array}\right][/tex]

Step-by-step explanation:

Multiply the components of A by 3 then add corresponding components of

3a + b

3[tex]\left[\begin{array}{ccc}2\\4\\\end{array}\right][/tex] + [tex]\left[\begin{array}{ccc}3\\-2\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}6\\12\\\end{array}\right][/tex] + [tex]\left[\begin{array}{ccc}3\\-2\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}6+3\\12-2\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}9\\10\\\end{array}\right][/tex]