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3 years ago

Solve 3n-5p+2n=10p for n

Mathematics

2 answers:

zheka24 [161]3 years ago

7 0

The answer should be n=p+2

zavuch27 [327]3 years ago

4 0

Answer:

Step-by-step explanation:

n = 3p

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Determine the factors of x3 - 12x2 - 2x + 24 by grouping?

ollegr [7]

Take x as common factor x(x^2-12x-2)+24

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3 years ago

How to graph -4x+6y=12

ratelena [41]

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4 years ago

The first term of a geometric sequence is 6, and the ratio (multiplier) is 0.5. What is the sum of the first 8 terms, rounded to

IRISSAK [1]

The sum of the first $n$ terms of a geometric sequence is given by:

$S_{n}=\frac{a_{1}(1-r^{n})}{1-2}$

Using the known values:
$S_{8}=\frac{6(1-0.5^{8})}{1-0.5}$
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3 years ago

A 12-foot ladder is placed 4 feet away from a house as shown.

elena-s [515]

Answer:

Answer: x = 71 degrees. Yes, the ladder meets safety standards

Discussion:

The problem describes a right triangle with hypotenuse 12, the side against the ground is 4, and the angle between those two sides is "x". For this triangle,

cosx = (side adjacent to angle) / hypotenuse

= 4 / 12

= 1/3

To find "x" take the inverse cosine of each side to find that :

x is approximately 70.52 degrees. That's 71 degrees rounded to the nearest degree.

Step-by-step explanation:

HOPE THIS HELPED!

6 0

3 years ago

Read 2 more answers

Multiply (2.5x10^-10) (7x10^-6)

serious [3.7K]

We want to multiply $2.5\cdot10^{-10}$ by $7\cdot10^{-6}$ .

The numbers are written in scientific notation. So we expect the answer also to be in scientific notation.

the multiplication of the 10's, using the exponents rule is :

$10^{-10}\cdot 10^{-6}=10^{-10+(-6)}=10^{-10-6}=10^{-16}$

the multiplication of the other 2 numbers is:

$2.5\cdot7=17.5=1.75\cdot10$

(we write the number so that it has only one digit to the left of the decimal point).

Thus,

$(2.5\cdot10^{-10})\cdot(7\cdot10^{-6})=1.75\cdot10\cdot10^{-16}=1.75\cdot10^{-15}$

Answer: $1.75\cdot10^{-15}$

6 0

4 years ago

Read 2 more answers