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3 years ago

What is the answer I need help ASAP be truthful

Mathematics

2 answers:

dolphi86 [110]3 years ago

8 0

Answer:

your closest number should be A

maria [59]3 years ago

4 0

Answer:

A.√99

Step-by-step explanation:

10^2 = 100

Or vise versa √100 = 10

The closest number to 100 is 99

So √99 is closest to 10

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Please help with this question

Radda [10]

<h3>Answer:</h3>

5/(3+c) +5/(3-c) = 3

<h3>Step-by-step explanation:</h3>

The current adds to Milly's rowing speed going downriver, so her speed downriver is (3+c). The relationship between speed, time, and distance is ...

... time = distance/speed

so her time going downriver is 5/(3+c).

___

The current subtracts from Milly's rowing speed gowing upriver, so her speed upriver is (3-c). Her time going 5 miles upriver is 5/(3-c).

We are told her time for both trips is 3 hours, so we have ...

... 5/(3+c) +5/(3-c) = 3

_____

Comment on the equation

This equation has no solution in real numbers. The minimum time for the distance corresponds to c=0, and that time is 3 1/3 hours. There is no real value of c that will let Milly make the trip in 3 hours.

5 0

4 years ago

What is the range of this function?

AnnyKZ [126]

Answer:

Range {6, 7, 9, 14, 15}

Step-by-step explanation:

6 0

3 years ago

Simplify the following: log(25x^3) + 3log(1/x)

shtirl [24]

Hope this helps :))

...............................

3 0

3 years ago

Solve using the quadratic formula. Approximate answers to the nearest tenth.

Thepotemich [5.8K]

Answer:

$\displaystyle x = 2, \ 3$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $\displaystyle x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}$

Step-by-step explanation:

Step 1: Define

Identify variables

x² - 5x + 6

↓

a = 1, b = -5, c = 6

Step 2: Solve for x

Substitute in variables [Quadratic Formula]: $\displaystyle x = \frac{5 \pm \sqrt{(-5)^2-4(1)(6)}}{2(1)}$
[√Radical] Evaluate exponents: $\displaystyle x = \frac{5 \pm \sqrt{25-4(1)(6)}}{2(1)}$
[√Radical] Multiply: $\displaystyle x = \frac{5 \pm \sqrt{25-24}}{2(1)}$
[√Radical] Subtract: $\displaystyle x = \frac{5 \pm \sqrt{1}}{2(1)}$
[√Radical] Evaluate: $\displaystyle x = \frac{5 \pm 1}{2(1)}$
Multiply: $\displaystyle x = \frac{5 \pm 1}{2}$
Add/Subtract: $\displaystyle x = \frac{4}{2}, \ \frac{6}{2}$
Divide: $\displaystyle x = 2, \ 3$