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2 years ago

Please help me with this!!!

Mathematics

1 answer:

Alex Ar [27]2 years ago

4 0

He’s right !! He helps me with my problems!

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Simplify the following expression.

son4ous [18]

Answer:

C. log 9

Step-by-step explanation:

Hope this helped!

6 0

2 years ago

Use the formula for interest P=750 r=7% Y=25 A=?

Over [174]

Answer:

2062.50

Step-by-step explanation:

Interest = (Principle x rate x time)/100

Amount = Principle + interest

Principle = 750

Rate = 7%

Time = 25 years

(750 x 7 x 25)/100

= 131250/100

=1312.50

Principle = 750

Interest = 1312.50

Amount = 750 + 1312.50

Amount = 2062.50

7 0

3 years ago

Rearrange the following and ad .005, 2,002.181, 795.41, 14.0,184

xz_007 [3.2K]

Answer:

1 2 3 4

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

What is the distance between the points (-1 , -13) and (-1 , 21) in the coordinate plane?

chubhunter [2.5K]

Answer:

$\displaystyle d = 34$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (-1, -13)

Point (-1, 21)

Step 2: Find distance d

Substitute in points [DF]: $\displaystyle d = \sqrt{(-1+1)^2+(21+13)^2}$
(Parenthesis) Add: $\displaystyle d = \sqrt{(0)^2+(34)^2}$
[√Radical] Simplify: $\displaystyle d = \sqrt{(34)^2}$
[√Radical] Evaluate: $\displaystyle d = 34$

6 0

2 years ago

If u = -8i + 7j, what is the magnitude of -5u? Simplify any radicals.

lubasha [3.4K]

Answer:

$- 5 \sqrt{113}$

Step-by-step explanation:

Find the magnitude of the complex number

Notice the magnitude is equal to

$u = \sqrt{ {a}^{2} + {b}^{2} }$

where a is the real number and b is the imaginary number.

Substitute

$u = \sqrt{ - 8 {}^{2} + 7 {}^{2} }$

$u = \sqrt{64 + 49}$

$u = \sqrt{113}$

Multiply this by -5

$- 5 \sqrt{113}$

7 0

2 years ago