All categories

3 years ago

The question is: Which best describes the first step in evaluating the expression 4· 53+1 (8-5)Cubed 3

Mathematics

1 answer:

JulijaS [17]3 years ago

7 0

Answer:

Subtract $8 - 5$

Step-by-step explanation:

Given

$4 . \frac{53 + 1}{(8 - 5)^3}$

Required

The first step to evaluate the expression

The first step is to evaluate the expression in brackets.

From the question: The expression in bracket is: $8 - 5$

So, the first step is to subtract $8 - 5$

You might be interested in

Q+ad=m solve for d, i need help now please!

Pepsi [2]

Answer:

d =(m-q)/a

Step-by-step explanation:

$q+ad=m\\ad = m-q\\\frac{ad}{a} = \frac{m-q}{a} \\\\d = \frac{m-q}{a}$

7 0

3 years ago

Read 2 more answers

I need help with the question

sweet [91]

Answer:

Step-by-step explanation:

Comment

√15 = 3.87

√12 = 3.46 Subtract these 2

Difference = 0.41

5 0

1 year ago

This graph shows the solution to which inequality?

wariber [46]

Answer:

B. y > 2/3x + 1

Step-by-step explanation:

To find slope we'll use the following formula,

$\frac{y^2-y^1}{x^2-x^1}$

(-3,-1) (3,3)

3 - -1 = 4

3 - -3 = 6

2/3x

The y intercept is 1,

we know this because that's the point the line touches the y axis.

Thus,

the answer is B. y > 1/3x + 1.

Hope this helps :)

6 0

4 years ago

1,A ladder with nine rungs is to be built, with the bottom rung 24cm. wide and the top rung

Zepler [3.9K]

Answer:

bottom rung 24cm. wide and the top rung

18cm. wide. If the length of the rungs decreases uniformly from bottom to top, how long

should each of the seven intermediate rungs be?

3,Find the first term of the sequence 10, 5, 2.5, 1.25, . . . which is less than 0.0001.

3,In an arithmetic sequence, if the p

th term is q and the q

th term is p, find the (p + q)

th term.

3 0

3 years ago

In an article appearing in Today’s Health a writer states that the average number of calories in a serving of popcorn is 75. To

statuscvo [17]

Answer:

$t = 1.9166$

The nutritionist does not have sufficient evidence to reject the writers claim

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 75$

The sample size is $n = 20$

The sample mean is $\= x = 78$

The standard deviation $\sigma = 7$

The level of significance is $\alpha = 0.05$

Now the

Null Hypothesis is $H_o : \mu = 75$

Alternative Hypothesis is $\mu \ne 75$

generally the degree of freedom is mathematically represented as

$df = n-1$

$df = 20 -1$

$df = 19$

For a significance level of 0.05 and 19 degrees of freedom, the critical value for the t-test is 2.093. This is obtain from the t-distribution table

The test statistic is mathematically evaluated as

$t = \frac{ \= x - \mu }{\frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{78 - 75 }{\frac{7 }{\sqrt{20} } }$

$t = 1.9166$

Since the test statistic is below the critical value then the Null hypothesis can not be rejected

So we can conclude that the nutritionist does not have sufficient evidence to reject the writers claim

7 0

3 years ago