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Nikolay [14]
3 years ago
14

How do you find the area of 3

Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

Answer:

Example: What is the area of this rectangle?

Area Count


The formula is:


Area = w × h

w = width

h = height


The width is 5, and the height is 3, so we know w = 5 and h = 3:


Area = 5 × 3 = 15


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Please help I need it by tonight
natita [175]

Using mathematical operations we can conclude that the area of the given figure is 40 units².

<h3>What are mathematical operations?</h3>
  • An operation is a function in mathematics that transforms zero or more input values into a clearly defined output value.
  • The operation's arity is determined by the number of operands.
  • A mathematical action is called an operation.
  • Mathematical operations include addition, subtraction, multiplication, division, and finding the root.

So, the area of the figure:

Where x = 4, so the expression will become:

  • x² + x² + x + x

Now, do the mathematical operations to get the area of the figure as follows:

  • x² + x² + x + x
  • 4² + 4² + 4 + 4
  • 16 + 16 + 8
  • 40

'

Therefore, using mathematical operations we can conclude that the area of the given figure is 40 units².

Know more about mathematical operations here:

brainly.com/question/20628271

#SPJ13

6 0
2 years ago
Which of the following best describes the English expression fourteen less
bija089 [108]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
Simplifying 72-(7+8) •4
WINSTONCH [101]
First, you would solve the parentheses. 
72-(7+8)*4

72-(15)*4
Then, you would do multiplication.
72-60=
12

Hope this helps!
7 0
4 years ago
Read 2 more answers
The null and alternative hypotheses are given. Determine whether the hypothesis test is​ left-tailed, right-tailed, or​ two-tail
olganol [36]

Answer:

Two tailed test

Parameter tested= population standard deviation

Step-by-step explanation:

1) Important concepts

The chi-square test if the standard deviation of a population is equal to a given value. We can conduct the test two-side or a one-side.

For the case of two-side we want to check if the population deviation is equal to some value or no. And for the case of one-side we want to check if the population devition is higher or lower than a given value.

The system of hypothesis are:

\sigma=\sigma_o Null hypothesis

\sigma \neq \sigma_o Alternative hypothesis

That's when we use the two sided version but we can have other's alternative hypothesis if we use one-side test:

\sigma < \sigma_o Alternative hypothesis

\sigma > \sigma_o  Alternative hypothesis

The test statistic to check the hypothesis is:

t=(N-1)(\frac{s}{\sigma_o})^2

For this special case the value of \sigma_o =99

Where N represent the sample size and s is the sample standard deviation. The ratio \frac{s}{\sigma_o} is important since allows to compare the ratio of the sample standard deviation to the specified value. If this ratio is different from 1, we will have evidence that we can reject the null hypothesis.

Using a significance level \alpha we can find the critical region for the possible alternative hypothesis:

t>\chi_{\alpha,N-1}^2 for the upper one tailed option

t for the lower one tailed option

t for the two tailed option

The N-1 represent the degrees of freedom for the chi square distribution.

2) Solving the question

Based on all the info from above we can conclude that:

Type of test= Two tailed test

Parameter tested=population Standard deviation

And they want to check if the population deviation differs from 99

7 0
3 years ago
5. Find the center and radius of the circle with the given equation.
leonid [27]

Answer:

A

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x + 4)² + (y - 1)² = 25 ← is in standard form

with centre = (- 4, 1 ) and r = \sqrt{25} = 5 → A

7 0
3 years ago
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