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3 years ago

Please help me in this question

Mathematics

1 answer:

quester [9]3 years ago

5 0

Answer:

m= 4

Step-by-step explanation:

(-5)^(m + 3) × (-5)^8 = (-5)^15
(-5)^(m + 3 + 8) = (-5)^15
(-5)^(m + 11) = (-5)^15
m + 11 = 15
m = 4

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An equation of the circle whose center is the origin and

tankabanditka [31]

Answer:

$\fbox{\begin{minipage}{10em}Option C is correct\end{minipage}}$

Explanation:

A circle whose center is $(a, b)$ and radius $r$ , has equation:

$(x - a)^{2} + (y - b)^{2} = r^{2}$

The center of circle is given as origin $(0, 0)$ , therefore:

$a = 0\\b = 0$

This circle passes $(3, 0)$ , then the radius of circle is the distance $(d)$ between origin $(0, 0)$ and $(3, 0)$

$d = \sqrt{(0 - 3)^{2} + (0 - 0)^{2} } = \sqrt{3^{2} } = 3$

=> $r = d = 3$

Substitute $a$ , $b$ , and $r$ back into original equation:

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Hope this helps!

3 0

3 years ago

I need help I neererrrrrtgggh

spin [16.1K]

3^4 = 3 x 3 x 3 x 3

4^3 = 4 x 4 x 4

3^3 = 3 x 3 x 3 = 27

Hope it helps!

7 0

3 years ago

Read 2 more answers

If anyone can help me out I would truly appreciate it Please show me step by step

wel

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

Identify

0.3y + y/z

y = 10

z = 5

Step 2: Evaluate

Substitute in variables: 0.3(10) + 10/5
Multiply: 3 + 10/5
Divide: 3 + 2
Add: 5

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3 years ago

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OLga [1]

The answers to the questions

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3 years ago

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Tresset [83]

Answer:

the obvious choice is 7/16

Step-by-step explanation:

the 7 is more than half in this question

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3 years ago

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Please help me in this question​

Please help me in this question