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3 years ago

Please help asap, and if you can explain why after the answer, please and thank you❤️

Mathematics

1 answer:

weqwewe [10]3 years ago

4 0

DF=14. Because DE is half the line and EF is the other half the line you add up both the lengths to get the length of whole line.
DE=EF. DE and EF both equal 7 so they are equal.

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the height of a cone-shaped statue is 9ft, and the diameter is 12 ft. what is the approximate volume of the statue? Use 3.14 to

Lady bird [3.3K]

Answer:

1017.36

Step-by-step explanation:

9times 36=324

324 times pi =1017.36

8 0

3 years ago

Read 2 more answers

What is the largest possible integral value in the domain of the real-valued function

kotegsom [21]

Answer:

Max Value: x = 400

General Formulas and Concepts:

Algebra I

Domain is the set of x-values that can be inputted into function f(x)

Calculus

Antiderivatives
Integral Property: $\int {cf(x)} \, dx = c\int {f(x)} \, dx$
Integration Method: U-Substitution
[Integration] Reverse Power Rule: $\int {x^n} \, dx = \frac{x^{n+1}}{n+1} + C$

Step-by-step explanation:

Step 1: Define

$f(x) = \frac{1}{\sqrt{800-2x} }$

Step 2: Identify Variables

Using U-Substitution, we set variables in order to integrate.

$u = 800-2x\\du = -2dx$

Step 3: Integrate

Define: $\int {f(x)} \, dx$
Substitute: $\int {\frac{1}{\sqrt{800-2x} } } \, dx$
[Integral] Int Property: $-\frac{1}{2} \int {\frac{-2}{\sqrt{800-2x} } } \, dx$
[Integral] U-Sub: $-\frac{1}{2} \int {\frac{1}{\sqrt{u} } } \, du$
[Integral] Rewrite: $-\frac{1}{2} \int {u^{-\frac{1}{2} }} \, du$
[Integral - Evaluate] Reverse Power Rule: $-\frac{1}{2}(2\sqrt{u}) + C$
Simplify: $-\sqrt{u} + C$
Back-Substitute: $-\sqrt{800-2x} + C$
Factor: $-\sqrt{-2(x - 400)} + C$

Step 4: Identify Domain

We know from a real number line that we cannot have imaginary numbers. Therefore, we cannot have any negatives under the square root.

Our domain for our integrated function would then have to be (-∞, 400]. Anything past 400 would give us an imaginary number.

7 0

3 years ago

Model 2.4 divided by 8

spin [16.1K]

2.4 ÷ 8= 0.3
The decimal stays the same.

Hoped this helped.

~Bob Ross®

8 0

3 years ago

Donna is going to swim 20 laps. She has completed 6 laps. What fraction of laps has she completed? What fraction of her swim rem

Citrus2011 [14]

Answer:

1.6/20

2.14/20

Step-by-step explanation:

3 0

3 years ago

Find midpoint of line segment joining j(6 17 and i(9 16)

Serga [27]

Answer: (15/2, 33/2) or (7.5, 16.5)
depending on if you want fractions or decimals

explanation:
equation for midpoint... (avg x, avg y)
x-coordinate: (6+9)/2 = 15/2 = 7.5
y-coordinate: (17+16)/2 = 33/2 = 16.5

4 0

3 years ago