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2 years ago

Evaluate. 12÷(2+23)2 6 4/9 4 1/2 3 2/3 1 11/16

Mathematics

2 answers:

grin007 [14]2 years ago

7 0

<h3>Answer:</h3>

24/25

<h3>Reviewing BODMAS:</h3>

Let's review the concept of BODMAS.

<u>BODMAS is the correct order we use solve a mathematical problem</u>.

=> B = Brackets
=> O = Order of powers or roots
=> D = Division
=> M = Multiplication
=> A = Addition
=> S = Subtraction

<h3>Solving the given expression.</h3>

<u>Now, let's solve the given expression using BODMAS.</u>

12 ÷ (2 + 23)2
=> 12 ÷ (25)2
=> 12 ÷ 25 x 2
=> 12/25 x 2
=> 24/25

<u>Hence, the solution is 24/25.</u>

nikitadnepr [17]2 years ago

5 0

Answer: That’s weird I don’t see an option for the answer I got, I’m positive it’s correct though. It’s 24/25 or 0.96 in decimal form

Step-by-step explanation:

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Rewrite the function y= x^2 + 14x + 4 in vertex form

Step2247 [10]

Vertex form is basically commplete the square
y=a(x-h)^2+k

y=x^2+14x+4
take 1/2 of 14 and square it, (7^2=49)
add that and its negative to right side
y=x^2+14x+49-49+4
factor perfect squaer
y=(x+7)^2-49+4
y=(x+7)^2-45

answer is A

4 0

3 years ago

Calculate the rate of change from the graph below

qaws [65]

Answer:

The rate of change is 0.75 gallons per minute

Step-by-step explanation:

The rate of change of the linear relation is represented by the slope of the line which represents this relation

The rule of the slope of a line is

m = Δy/Δx, where

Δy is the vertical change
Δx is the horizontal change

From the given graph

∵ The line passes through points (0, 0) and (4, 3)

∴ Δx = 4 - 0 = 4

∴ Δy = 3 - 0 = 3

→ Use the rule of the slope above to find the slope of the line

∴ m = $\frac{3}{4}$ = 0.75

∵ The x-axis represents the time in minutes

∵ The y-axis represents the amount in gallons

∵ m represents the rate of change

∴ The rate of change = 0.75 gallons per minute

7 0

3 years ago

PLEASE HELP!! Will Mark brainliest!!

jeka57 [31]

Answer:

13 level

Step-by-step explanation:

143/55 = 2.6

5 x 2.6 = 13

8 0

3 years ago

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Write a cosine function that has a midline of 3, an amplitude of 4 and a period<br> of pi.

Artist 52 [7]

Step-by-step explanation:

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2 years ago

Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively.

TiliK225 [7]

Answer:

d. 200 and 2

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .