Solve the two-step equation and identify the steps.

1.4x + 6.1 = –7.9

1. The first step is to
on both sides.
2. The second step is to
on both sides.


The solution is x =
.

Answer:

B

Step-by-step explanation:

Answer:

37.68

Step-by-step explanation:

3.14 * 12 or 2(6 *3.14)

6 is the radius so you multiply by 2 and get 12. Multiply 12 by 3.14 to get 37.68

Answer:

Tank A and Tank D

Step-by-step explanation:

Got it right

The tanks that have the capacity more than 90 cu.ft is Tank A and C.

Volume is the amount of space occupied by a three dimensional object, it is represented in cubic units.

The volume of a Cylinder is given by

V = πr²h

The Volume of a Cone is given by

V= πr²h/3

The volume of the composite figure in Tank A and D,

Volume =  Volume of cylinder + Volume of Cone

Tank A :

Volume =  πr²h + πr²h/3

Volume = ( π * 2.5² * 4 ) + ( π *2.5² *2 )/3

Volume = 91.58 cu.ft

Tank B :

Volume =  πr²h/3

Volume =  π * 4² *5 /3

Volume = 83.7 cu.ft

Tank C

Volume = πr²h

Volume = π * 2² * 6

Volume = 75.36 cu.ft

Tank D:

Volume =  πr²h + πr²h/3

Volume = π * 3²*3 + π *3²* 3 /3

Volume = 113.04 cu.ft

To know more about Volume

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Answer:12 tiles will be needed.

Answer:

A.15

Step-by-step explanation:

These two triangles are congruent triangles. This means that the side measurements can be found through a single multiplicative number.

All you have to do is divide 49 by 23 and get 2.130434783. You need that number to be specific

Next you want to multiply that number by the side length that corresponds to the length you are trying to find. In this case that is 7.  

7 x 2.130434783=14.9

14.9 rounds to 15

Answer:

27: 4 m

28: 60,000 cm

29: 8 m

30: 12 m

31: 90,000

32: 56 m

33: 650,000

34: 45 m

35: 230,000

36: 24

Have a great day!!

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Answer:

Step-by-step explanation:

27. 4m²

28. 60 000cm²

29. 8m²

30. 12m²

31. 90 000cm²

32. 5.6m²

33. 650 000cm²

34. 45m²

35. 230 000cm²

36. 24m²

hope dis helps!!!!!

Answer: 0.8

Step-by-step explanation:

Answer:

160 girls

Step-by-step explanation:

2/5 = girls

3/5 = boys

3/5 = 240

to find 1

240/3

80

2/5 = 160

Answer:

1440°

Step-by-step explanation:

Each exterior angle of a 10 sided regular polygon =360/10=36°  

Each interior angle = 180°-36° =144°.  

Sum of all interior angles = 144°×10. = 1440°.

Answer: how many questions were incorrect? take that number and multiply it by 2. then subtract whatever u got from 80.

Step-by-step explanation:

[tex]\begin{array}{ccll} paint&flowers\\ \cline{1-2} \frac{2}{9} & 1\\ x& 3 \end{array} \implies \cfrac{~~ \frac{2}{9}~~}{x}=\cfrac{1}{3}\implies \cfrac{2}{9x}=\cfrac{1}{3} \\\\\\ 6=9x\implies \cfrac{6}{9}=x\implies \cfrac{2}{3}=x[/tex]

Step-by-step explanation:

A matrix of order 3×1 means it has 3 rows and one column.

[tex] \huge \red{ \begin{pmatrix} a \\\\b \\\\c \end{pmatrix} }[/tex]

Answer:

y = 2

x = -3.5

Step-by-step explanation:

3y and (2x + 13) are same-side angles.

that means they are equal

(that's not the real term for it, I just forgot what it's called)

using that, you can make this equation:

3y = 2x + 13

3y - 13 = 2x

(3y - 13)/2 = x

(5y - 4) and 3y are vertical angles.

vertical angles are equal.

using this, you can make the following equation:

5y - 4 = 3y

5y - 3y - 4 = 0

5y - 3y = 4

2y = 4

y = 2

now, substitute y for 2 in the original equation.

(3y - 13)/2 = x

(6 - 13)/2 = x

-7/2 = x

-3.5 = x

Answer:

NO this isn't a perfect square

Step-by-step explanation:

Answer:

4.76

Step-by-step explanation:

it just is

Answer:

Step-by-step explanation:

The vertex coordinates of  f(x) = ax² + bx + c  is  (h, k)

where:   [tex]h=\dfrac{-b}{2a}\ ,\qquad k=f(h)[/tex]

f(x) = - x² - 6x + 1       ⇒  a = -1   b = -6

So:

     [tex]h=\dfrac{-(-6)}{2(-1)}=\dfrac6{-2}=-3\\\\y=f(h)=-(-3)^2-6(-3)+1=-9+18+1=10[/tex]

Answer:

The y-intercept is +2

using y=mx+b we can tell anything added is the intercept.

+2

Step-by-step explanation:

We know the standard equation is

y = mx + c

where m is the slope and c is the y-intercept.

By Comparing the given equation with the standard equation we get,

y-intercept = +2

Answer:

8) 25.12

9) 15.07

10) 48.98

11) 1962.5

12) 20

13) r = 8.5

14) diameter: 72 radius: 36

Step-by-step explanation:

Since angles opposite congruent sides in a triangle are congruent, w=67.

Now, since the sum of the measures of the interior angles of a triangle is 180 degrees, x=180-67-67=46

Answer:

the first one

Step-by-step explanation:

Solution:

1. Since the numbers must be divisible by 2 even numbers, all odd numbers are ruled out because odd numbers are not divisible with even numbers.

In this case, the numbers that are possible are:

2. Since the numbers must be divisible by 5, it rules out a few more numbers.

In this case, the remaining numbers are:

We can clearly tell that the only number that is divisible by 8, 5, and 4 is 80.

Thus, 80 is the number.

Answer:

f(x) = x² -5x factor this function

x(x-5) = 0   ----> either x =0 , or x -5 =0 then x =5

the two values of x make f(x) =0 are 0 and 5

we can check by substituting these two values

at x = 0 ----> f(0) = 0² - 5 * 0 ---> f(x) =0

at x =5 ----> f(5)= 5² -5 * 5 ---> f(x) =0

Step-by-step explanation:

Answer:

7-3=

10

Step-by-step explanation:

The positive sign is replaced by the negative sign.

+ve × -ve = -ve

Answer:

A

Step-by-step explanation:

A is the only one that has points that get hit only once when performing the vertical line test. All others get hit more than once per line.

[tex](a\sin(\theta) - b\cos(\theta))^2\\= a^2\sin^2(\theta) - 2ab\sin(\theta)\cos(\theta) + b^2\cos^2(\theta)\\= a^2\sin^2(\theta) - ab\sin(2\theta) + b^2\cos^2(\theta)[/tex]

Answer:

Top Left, and Bottom Left

Step-by-step explanation:

A function cannot have the same y value for different x value

Answer:

look beloww

Step-by-step explanation:

could you please explain furture in a diffrent question so i can help?