Somebody knows how to this?

Answer:

29

Step-by-step explanation:

Answer:

= 20

Step-by-step explanation:

Turn it into multiplication by doing keep, switch, flip. Keep 5. Switch division to multiplication. Flip 3/12 to 12/3 or 4.

5 x 4 = 20.

Answer: C

Step-by-step explanation:

Step-by-step explanation:

explained in the photo

Answer:

84

Step-by-step explanation:

1/4 of class don't play basketball but do play volleyball

so 9/28 of class play both since 4/7 - 1/4 = 9/28

9/28 of class = 27

1/28 of class = 3

class = 3*28

There are 84 girls in the class.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Girls who plays basketball = (3/4)x

Girls who plays volleyball = (4/7)x

Girls who plays both games = 27

Now, Let us consider total girls in the class = x

So we can write it as mathematical equation as;

⇒ (3/4)x +(4/7)x - 27 = x

By taking L.C.M. -

⇒ (21x+16x)/28 - (27) = x

⇒ 37x/28 = x + 27

⇒ 37x = 28x + (27×28)

⇒ 9x = 27×28

⇒ x = (27×28)/9

⇒ x = 3×28

⇒ x = 84

So, There are total 84 girls in the class.

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Answer:

The slope of line is 9

Step-by-step explanation:

We can use two pairs of input-output from the table to find the slope of the given line. Here x is input and y is output.

Slope is defined as the steepness of a line and is given by the formula:

[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]

Selected pairs from table are:

(-1,-18) and (0,-9)

Here

[tex]x_1 = -1\\x_2 = 0\\y_1 = -18\\y_2 = -9[/tex]

Putting the values in the formula

[tex]m = \frac{-9-(-18)}{0-(-1)}\\=\frac{-9+18}{0+1}\\= 9[/tex]

Hence,

The slope of line is 9

Step-by-step explanation:

Percentage = (20/20) * 100% = 100%.

Hence Sergio is incorrect because 20/20 equals 100/100, so it would be 100% instead of 1%. (C)

Answer:

Percentage = (20/20) * 100% = 100%.

Step-by-step explanation:

Answer:

Step-by-step explanation:

I think you have the question incomplete, and that this is the complete question

sin^4a + cos^4a = 1 - 2sin^2a.cos^2a

To do this, we can start my mirroring the equation.

x² + y² = (x + y)² - 2xy,

This helps us break down the power from 4 to 2, so that we have

(sin²a)² + (cos²a)² = (sin²a + cos²a) ² - 2(sin²a) (cos²a)

Recall from identity that

Sin²Φ + cos²Φ = 1, so therefore

(sin²a)² + (cos²a)² = 1² - 2(sin²a) (cos²a)

On expanding the power and the brackets, we find that we have the equation proved.

sin^4a + cos^4a = 1 - 2sin^2a.cos^2a

Answer:

3 ⅙

Step-by-step explanation:

38 and 12’s common factor would be 2. Now the fraction is 19/6.

How many 6’s can fit into 19? 3. With a remainder of 1 we have:

3 ⅙

Answer:

3 Hours

Step-by-step explanation:

If we subtract 30 dollars from the initial 42, we are left with 12 dollars. Then all we have to do is do 12/4 to get 3 hours of work :D

Answer:

The correct answer is choice 3

Step-by-step explanation:

80 - 80 = 0

bruh

Answer:the answer would be C

Step-by-step explanation:

your answer would be -239.45.

356.54

-595.99

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

-239.45

Answer:

775=434×1+341

Step-by-step explanation:

this is the answer

Answer:

7

Step-by-step explanation:

1.39 rounds to 1

6.76 rounds to 7

1 x 7=7

Answer:

1,7,7

Step-by-step explanation:

Answer:

84 yd^2

Step-by-step explanation:

Answer:

½ × 7yd × 24yd = 84yd² <<<<< the answer

Answer:sorry i cant

Step-by-step explanation:

Answer:

x=3, y=9

Step-by-step explanation:

Mulriplying the first equation by 2 yields -10x+2y=-12.

Subtracting the second equation from this gives -17x=-51, and thus x=3.

Substituting this back into the first equation gives -15+y=-6, and thus y=9.

Answer:

[tex] x=27\degree[/tex]

Step-by-step explanation:

[tex] \because AC || DE.... (given) [/tex]

[tex] \therefore m\angle CAD= m\angle EDF\\ (corresponding \: \angle s) [/tex]

[tex] \therefore m\angle BAD= m\angle EDF\\(\because B\in \overleftrightarrow{AC}) [/tex]

[tex] \therefore m\angle BAD= 2x\\(\because m\angle EDF=2x) [/tex]

[tex] In\:\triangle BAD, [/tex]

[tex] m\angle BAD+m\angle BDA+m\angle ABD= 180\degree [/tex]

[tex] 2x+2x+72\degree = 180\degree [/tex]

[tex] 4x= 180\degree -72\degree [/tex]

[tex] 4x= 108\degree [/tex]

[tex] x= \frac {108\degree}{4}[/tex]

[tex] x=27\degree[/tex]

Answer:

0

Step-by-step explanation:

Answer:

A and B

Step-by-step explanation:

The original equation simplifies down to -4m - 2

Answer A and B also simplify down to -4m -2, and therefor are equivalent

A: -2(4m + 1) + 4m

-8m - 2 + 4m

-4m - 2

B: 2(2m - 1) - 8m

4m - 2 - 8m

-4m - 2

Answer:

2, 4, and 6 (b, d, f)

Step-by-step explanation:

dont  really know how to explain

Answer:

179.48

Step-by-step explanation:

calculator

Answer:

44.87

Step-by-step explanation:

Answer:

Concept: Physics Qualitative Analysis.

Answer:

hi im back

Step-by-step explanation:

Answer:

Step-by-step explanation:

x=2

X+4= 6

Move + 4 to the other side to get X by itself

Sign changes from +4 to -4

X+4-4=6-4

X=6-4

X= 2

Answer: X= 2

Answer:

Its 6.12 × 10^42

Step-by-step explanation:

U have to break it into pieces.. Np Merry Christmas

Answer: -3x

Step-by-step explanation: If you separate out each term on its own, 9 and x², and do the square root of each one, you are left with 3x. This is also coincidentally what the right side of this graph looks graphically. However, the line of 3x does continue past x=0, so the other side of this graph, -3x, fits this better.

Thats my best guess, either way, hope it helps!

Answer: B) 18

Step-by-step explanation: It is also widely used for predicting the value of one dependent variable from the values of two or more independent variables. When there are two or more independent variables, it is called multiple regression

The number of independent variables or predictors present in the regression model is 3.

Therefore, the number of predictors in the regression is 3.

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