A.Direct
B.Inverse
C.neither

Step-by-step explanation:

[tex] \sqrt{7x {}^{2} } - 7 \sqrt{49x} \\ \sqrt{7} x - 7 \times 7 \sqrt{x} \\ \sqrt{7} x - 49 \sqrt{x} [/tex]

Answer

its d

Step-by-step explanation:

The expression that is represented by the model below is -

y = 2 x 3/8.

An expression in mathematics is a combination of terms both constants and variables.

Given are two labelled bars shown next to each other and each bar.

3 of the 8 bars are colored. Using fraction, we can represent it as -

{f} = 3/8

There are two such bars, so we can write -

y = 2{f}

y = 2 x 3/8

Therefore, the expression that is represented by the model below is -

y = 2 x 3/8.

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The algebraic expression that represents the phrase "fourteen increased by a number" is 14 + y. which is the correct answer that would be an option (A).

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

The given statement is "fourteen increased by a number"

According to the given question, translate the phrase into an algebraic expression:

⇒ 14 + y

This is because the phrase "increased by" means to add a certain number to 14.

The variable y represents the number that is being added to 14.

Thus, the algebraic expression that represents the phrase "fourteen increased by a number" is 14 + y.

Hence, the correct answer would be option (A).

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Answer:

2: 139

3: 139

4:41

Answer:

Step-by-step explanation:

10) ∠2 + 41 = 180      {Linear pair}

             ∠2 = 180 - 41

            ∠2 = 139

11) ∠3 = ∠2    {Vertically opposite angles}

∠3 = 139

12) ∠4 = 41      {Vertically opposite angles}

Answer:

Step-by-step explanation:

m:  y = -2x + 4

n:    y = x - 1

l:      y = 4

p:     x = -4

m: y=-2x+4

slope: 2

2/1=2

Its negative because the line is going down from left to right

y-intercept:

it crosses the y axis at (0,4)

n: y=x-1

slope: 1

1/1=1

Its positive because the line is going up from left to right

y-intercept:

it crosses the y axis at (0,-1)

l: y=4

slope: 0

A vertical line's slope is always 0

y-intercept:

it crosses the y axis at (0,4)

p: x=-4

To find the equation for a horizontal line, you need to find what x always is no matter what.

Answer:

8:25

Step-by-step explanation:

Hope this helps!

To do this, we first want to see how many participants there are in total by adding both males and females.

[tex]99+121=220[/tex]

Now we know that there were 220 total participants, but only 121 were females.

This allows us to set up the fraction 121/220= the percent female.

[tex]\frac{121}{220} =0.55[/tex]

or 55%

Answer                                                                                                                           17400

Step-by-step explanation:

Answer:

A=1.89×10 7 (7 as the exponent)

Explanation:

Answer:

its the first one.

Step-by-step explanation:

Answer:

r=44 rides

Step-by-step explanation:

(32-10) ÷ 0.50 = r

r=44

Answer:

44 rides

Step-by-step explanation:

r=32-10/.50

r=44

Answer:

7. 30°  8. 97.5°  9. 90°  10. 55°  11. 100°  12. x=32° y=64°

Answer:

add: jump strategy, adding up to ten, do the tens last, compensation method, double when the numbers are the same, count from a number upwards

Subtract: take away, minus decrease, leave, how many are left over, difference between, half/halve

Step-by-step explanation:

Answer:

4 is the slope

Step-by-step explanation:

y−6=4(x+5)

This equation is in point slope form

y -y1 = m(x-x1)  where m is the slope and ( x1,y1) is a point on the line

4 is the slope and ( -5,6) is a point on the line

Answer:

115 apples

Step-by-step explanation:

6 pounds of apple = $21.00

Cost per pound :

$21.00 / 6 = $3.5 per Pound

1 pound = 16 ounces

16 ounces cost $3.5

1 ounce = $3.5 / 16 = $0.21875

5 ounces will cost :

5 * 0.21875 = $1.09375

Number of 5 ounce apple that can be purchased with $126

$126 / $1.09375

= 115.2

Approximately 115 apples

Step-by-step explanation:

The ongoing arrangement of metal atoms in a three-dimensional regular ordered pattern is known in chemistry as a lattice structure. A simple model of an atom is a central atomic nucleus with electrons arranged in shells at different distances from the nucleus.

Answer:

11+11+11+11=44

Do I have to use different numbers?

10+14+12+8=44

Answer:

The root symbol (√ ) is used to represent the square root of any number.

Answer:

[tex]\sqrt{x}[/tex]

Square Root

Answer:

only x+1 , x+3 COULD represent consecutive even integers

Step-by-step explanation:

only x+1 , x+3 COULD represent consecutive even integers

Answer:

coefficient

Step-by-step explanation:

Answer:

14 cm²

Step-by-step explanation:

1/2 (7•4)

1/2 (28)

14

Answer:14

Step-by-step explanation:

I believe it is asking you to multiply 4 and 7 getting 28, then divide that by 2 so 14

el adulto tiene 13 células más que el bebe

Answer:

(-2, 1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define Systems

3x + 4y = -2

2x + 3y = -1

Step 2: Rewrite Systems

Find LCM of both equations.

Step 3: Redefine Systems

6x + 8y = -4

-6x - 9y = 3

Step 4: Solve for y

Elimination

Step 5: Solve for x