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3 years ago

Pls pls pls pls helppppp

Mathematics

2 answers:

kati45 [8]3 years ago

5 0

10 feet tall. Your welcome

olga nikolaevna [1]3 years ago

3 0

The tree would be 10 feet tall

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When f(x) = x2+9 and g(x) = x-9, find f(x)-g(x).

ohaa [14]

Answer:

$\huge{ \boxed{ \sf{ {x}^{2} - x + 18}}}$

Step-by-step explanation:

$\underline{ \text{Given}}:$

$\sf{f(x) = {x}^{2} +9 \: and \: g(x) = x-9}$

$\underline{ \text{To \: find}} : \sf{ \: f(x) \: - \: g(x)}$

Put the values:

$\mapsto{ \sf{ {x}^{2} + 9 - ( x - 9)}}$

While subtracting , sign of each term of the second expression changes.

$\mapsto{ \sf{ {x}^{2} + 9 - x + 9}}$

Add the numbers : 9 and 9

$\mapsto{ \boxed{ \sf{{x}^{2} - x + 18}}}$

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

5 0

3 years ago

true or false the standard error of the sum and the standard error of the average both get smaller as the sample size increases

Murrr4er [49]

Answer:

false

Step-by-step explanation:

6 0

3 years ago

What’s the area? For this

castortr0y [4]

Answer: 460.61

Step-by-step explanation:

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2 years ago

Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 2 inches, and the larger gear has a ra

sleet_krkn [62]

Answer:

Let r represent the radius of the smaller circle and R the radius of the larger circle.

Apply ratios: the radius of smaller circle to radius of larger circle, i.e.

r: R = 3 : 7.

I complete rotation = 360 degrees.

Part 1:

For one complete rotation of the smaller circle, the larger circle is rotated through: (3/7)*(360) = 154.3 degrees

Part 2:

For one complete rotation of the larger circle, the larger circle is rotated through: (7/3)*(360) = 840.0 degrees

This is equivalent to (840/360) = 2.3 rotations

Alternatively, use the ratios:

The number of rotations = R/r = 7/3 = 2.3 rotations

BRAINLIEST PLEASE??

Step-by-step explanation:

5 0

3 years ago

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What is the x-value in the solution to this system of linear equations?

Veronika [31]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

2x - y = 11

x + 3y = -5

Step 2: Rewrite Systems

2x - y = 11

[Subtraction Property of Equality] Subtract 2x on both sides: -y = 11 - 2x
[Division Property of Equality] Divide -1 on both sides: y = 2x - 11

Step 3: Redefine Systems

y = 2x - 11

x + 3y = -5

Step 2: Solve for x

Substitution

Substitute in y [2nd Equation]: x + 3(2x - 11) = -5
[Distributive Property] Distribute 3: x + 6x - 33 = -5
Combine like terms: 7x - 33 = -5
[Addition Property of Equality] Add 33 on both sides: 7x = 28
[Division Property of Equality] Divide 7 on both sides: x = 4

3 0

3 years ago

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