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4 years ago

How do you solve 5-31=20.6

Mathematics

1 answer:

Elza [17]4 years ago

7 0

5-31=26 not 20.6 i hope this helps

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What are the solutions of the equation x² + 4x + 4 = 25

soldier1979 [14.2K]

Answer:

The solutions of the equation x² + 4x + 4 = 25 are:

First option: x= 3 or x= -7

Step-by-step explanation:

x² + 4x + 4 = 25

Equaling to zero: Subtracting 25 both sides of the equation:

x² + 4x + 4 -25= 25-25

Simplifying:

x² + 4x -21 =0

Factoring:

(x+7)(x-3)=0

Two solutions:

1.) x+7=0

Solving for x: Subtracting 7 both sides of the equation:

x+7-7=0-7→x=-7

2.) x-3=0

Solving for x: Adding 3 both sides of the equation:

x-3+3=0+3→x=3

The solutions are: x=3 or x=-7

6 0

3 years ago

Read 2 more answers

Please help if possible its important!!

Otrada [13]

Answer:

600 ft³

Step-by-step explanation:

Base area: B

Base is triangle

base = 12 ft and height = 5 ft

Area of triangle = B = $\frac{1}{2}* \ base * \ height$

$= \frac{1}{2}*12 * 5\\\\= 6 * 5\\\\= 30 \ ft^{2}$

H = 20 ft

Volume = B * H

= 30 * 20

= 600 ft³

7 0

3 years ago

Write an even number between 7 and 16 draw a picture and the write a sentence to explain why it is an even number

solniwko [45]

The even number I picked was 6, here is why it is an even number.

You can put each in even groups, without having one group be more or less then the other, if I picked an odd number like 7, one group would had more, and the other 2 groups would have less.

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Hope this helped, have a great day!

4 0

3 years ago

A new shopping mall records 150 total shoppers on their first day of business. Each day after that, the number of shoppers is 15

Wewaii [24]

The number of shoppers is an illustration of an exponential function.

The expression for the number of shoppers is: $\mathbf{f(n) = 150(1.15)^n}$

The given parameters are:

$\mathbf{a = 150}$ -- the number of shoppers on the first day of business

$\mathbf{r = 15\%}$ --- the rate

Because, the number of shoppers increases each day, the number of shopper on a certain day is:

$\mathbf{f(n) = a \times (1 + r)^n}$

Substitute 15% for r

$\mathbf{f(n) = a \times (1 + 15\%)^n}$

Express percentage as decimal

$\mathbf{f(n) = a \times (1 + 0.15)^n}$

$\mathbf{f(n) = a \times (1.15)^n}$

Substitute 150 for a

$\mathbf{f(n) = 150 \times (1.15)^n}$

$\mathbf{f(n) = 150(1.15)^n}$

Hence, the expression for the number of shoppers is: $\mathbf{f(n) = 150(1.15)^n}$

Read more about exponential functions at:

brainly.com/question/11487261

4 0

3 years ago

If you place a 29-foot ladder against the top of a building and the bottom of the ladder is 24 feet from the bottom of the build

kobusy [5.1K]

Answer:

16.3

Step-by-step explanation:

3 0

3 years ago