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2 years ago

6

Xzavier makes a conjecture that the sun of two odd integers is always an even integer which choice is the best proof of his conj

ecture
PLEASE I NEED THIS NOWWWWWWW

1 answer:

DedPeter [7]2 years ago

8 0

Answer:

2n+1

Step-by-step explanation:

i dont know but i tried to do it in paper and got this

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Your friend tells you that at 1:00 pm the temperature outside was 67 degrees Fahrenheit and at 5:00 pm, that same day, the tempe

kotykmax [81]

Answer:

Incorrect

Step-by-step explanation:

Average rate of change is

(65 - 67) / (5:00 - 1:00) = -½°/hr

7 0

2 years ago

Which simplifys to a+ b?<br> a-(1-b)+1<br> -(1-a)-b+1<br> (a-1)-(b-1)<br> a-(-b-1)+1

LenKa [72]

Answer:

see below

Step-by-step explanation:

Use the distributive property to eliminate parentheses. Remember that the product (-1)(-1) is 1.

a-(1-b)+1 = a -1 +b +1 = a + b . . . . this one

__

-(1-a)-b+1 = -1 +a -b +1 = a - b

__

(a-1)-(b-1) = a - 1 - b + 1 = a - b

__

a-(-b-1)+1 = a +b +1 +1 = a + b + 2

5 0

2 years ago

Read 2 more answers

Beads are dropped to create a conical pile such that the ratio of its radius to the height of the pile is constant at 2:3 and th

pav-90 [236]

Answer:

$\displaystyle \frac{dh}{dt} = \frac{1}{20 \pi} \ cm/s$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Equality Properties

<u>Geometry</u>

Volume of a Cone: $\displaystyle V = \frac{1}{3} \pi r^2h$

<u>Calculus</u>

Derivatives

Derivative Notation

Differentiating with respect to time

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

<u>Step 1: Define</u>

<u /> $\displaystyle \frac{r}{h} = \frac{2}{3} \\\frac{dV}{dt} = 5 \ cm^3/s\\h = 15 \ cm$ <u />

<u />

<u>Step 2: Rewrite Cone Volume Formula</u>

<em>Find the volume of the cone with respect to height.</em>

Define ratio: $\displaystyle \frac{r}{h} = \frac{2}{3}$
Isolate <em>r</em>: $\displaystyle r = \frac{2}{3} h$
Substitute in <em>r</em> [VC]: $\displaystyle V = \frac{1}{3} \pi (\frac{2}{3}h)^2h$
Exponents: $\displaystyle V = \frac{1}{3} \pi (\frac{4}{9}h^2)h$
Multiply: $\displaystyle V = \frac{4}{27} \pi h^3$

<u>Step 3: Differentiate</u>

Basic Power Rule: $\displaystyle \frac{dV}{dt} = \frac{4}{27} \pi \cdot 3 \cdot h^{3-1} \cdot \frac{dh}{dt}$
Simplify: $\displaystyle \frac{dV}{dt} = \frac{4}{9} \pi h^{2} \frac{dh}{dt}$

<u>Step 4: Find Height Rate</u>

<em>Find dh/dt.</em>

Substitute in known variables: $\displaystyle 5 \ cm^3/s = \frac{4}{9} \pi (15 \ cm)^{2} \frac{dh}{dt}$
Isolate <em>dh/dt</em>: $\displaystyle \frac{5 \ cm^3/s}{\frac{4}{9} \pi (15 \ cm)^{2} } = \frac{dh}{dt}$
Rewrite: $\displaystyle \frac{dh}{dt} = \frac{5 \ cm^3/s}{\frac{4}{9} \pi (15 \ cm)^{2} }$
Evaluate Exponents: $\displaystyle \frac{dh}{dt} = \frac{5 \ cm^3/s}{\frac{4}{9} \pi (225 \ cm^2) }$
Evaluate Multiplication: $\displaystyle \frac{dh}{dt} = \frac{5 \ cm^3/s}{100 \pi cm^2 }$
Simplify: $\displaystyle \frac{dh}{dt} = \frac{1}{20 \pi} \ cm/s$

3 0

3 years ago

X and y vary inversely, and y =7 when x = 4. What is the constant of variation?

o-na [289]

Answer:

Y doesn't vary directly with x

4 0

3 years ago

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Please Help! 50 points to brainiest! Triangle ABC is given where m∠A=33°,a = 15 in., and the height, h, is 9 in. How many distin

matrenka [14]

Answer:

Answer: You could have an infinite amount of triangles with these measurements.

Unless, you are missing something in the problem, there is not enough information that would narrow it down to a single triangle. Angle A is fixed and the height is fixed. However, Angle B and C could be anything as long as they formed a triangle and had side a of 15 in between them.

5 0

3 years ago

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