1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Whitepunk [10]
3 years ago
12

Find the circumference of a circle with a diameter 1 1/2 inches

Mathematics
1 answer:
loris [4]3 years ago
3 0

Answer:

C≅17.28

Step-by-step explanation:

Step one:If you divide 11 by 2 it would give you 5.5

Step two:Then use π which is 3.14

Step three:Multiply 5.5*3.14 which gives you 17.27 round to the nearest tenth would be 17.28

Hope it helps!

You might be interested in
Is there any additional information in the word problem???
Blababa [14]
The answer is $16.03
4 0
3 years ago
In the following exercises, multiply the binomials. Use any method.<br> 255. (a + b)(2a + 3b)
Alex_Xolod [135]

Answer:

Hence the expression $$(a+b)(2a+3b)=2a^2+5ab+3b^2$$

Step-by-step explanation:

Explanation

  • The given expression is (a + b)(2a+3 b).
  • We have to multiply the given expression.
  • Multiply the (a + b) by 3b, multiply the (a + b) by 2a then add like terms.

$$\begin{matrix}{} & {} & {} & {} & a & + & b \\ \times & {} & {} & {} & 2a & + & 3b \\ \end{matrix}$$

___________________

$$\begin{matrix}{} & {} & {} & {} & 3ab & + & 3{{b}^2} \\ {} & {} & 2{{a}^2} & + & 2ab & {} & {} \\ \end{matrix}$$

___________________

$$\begin{matrix}{} & {} & 2{{a}^2} & + & 5ab & + & 3{{b}^2} \\ \end{matrix}$$

7 0
1 year ago
Rewrite this equation into slope-intercept form. State the slope and y-intercept.<br> -7x+9y=18
a_sh-v [17]

Answer:

9y = 18 + 7x

y = 2 + 7/9x

Just rearrange and put into that form

5 0
3 years ago
Read 2 more answers
The manufacturer of an airport baggage scanning machine claims it can handle an average of530 bags per hour.(a-1) At α = .05 in
-Dominant- [34]

Answer:

b. H0: μ < 530. Reject H0 if tcalc > -1.753

Step-by-step explanation:

1) Data given and notation  

\bar X=507 represent the sample mean

s=47 represent the sample standard deviation  

n=16 sample size  

\mu_o =530 represent the value that we want to test  

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean is less than 530 (left tailed tes), the system of hypothesis would be:  

Null hypothesis:\mu \geq 530  

Alternative hypothesis:\mu < 530  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic  

We can replace in formula (1) the info given like this:  

t=\frac{507-530}{\frac{47}{\sqrt{16}}}=-1.957

Critical value

Since we are conducting a left tailed test we need to first find the degrees of freedom for the statistic given by:

df=n-1=16-1=15

Now we need to look on the t distribution with 15 degrees of freedom that accumulates 0.05 of the area on the left area. And on this case the critical value would be t_{\alpha}=-1/753.

And we can use the following excel code to find it: "=T.INV(0.05,15)"  

So then the correct rejection zone for H0 would be: Reject H0 if t_{calc}

P-value  

Since is a one side left tailed test the p value would be:  

p_v =P(t_{(15)}  

Conclusion  

If we compare the p value and the significance level for example \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to fail reject the null hypothesis, so we can conclude that the mean is significantly lower than 530 at 5% of significance.  

6 0
3 years ago
The polynomial 8x2 – 8x + 2 – 5 + x is simplified to 8x2 – gx – h. What are the value of g and h?
igor_vitrenko [27]

Answer:

Option D: g = 7 and h = 3

Step-by-step explanation:

The polynomial is;

8x² – 8x + 2 – 5 + x

Simplifying this gives;

8x² - 7x - 3

If this is simplified to 8x² – gx – h

Thus, by comparison of terms;

– gx = - 7x

-x will cancel out to get;

g = 7

Similarly, - h = - 3

Thus,h = 3

Therefore; g = 7 and h = 3

3 0
2 years ago
Other questions:
  • Write the next two terms in the pattern. 3, 10, 17, 24, . . .
    7·2 answers
  • How many liters of a 25 percent saline solution must be added to 3 liters of a 10 percent saline solution to obtain a 15 percent
    10·1 answer
  • (2.5 x 10^-6) ÷ (5 x 10^-3)
    11·1 answer
  • The ratio of measures of two complementary angles is 4:5
    6·1 answer
  • A bottle filling process has a setting of 48 ounces which is exactly what consumers want when they buy the vegetable oil. A rand
    15·1 answer
  • HELP!!!
    9·1 answer
  • Which statement is true? a 3 2/5 &lt; 2 4/5 b 2/3 &gt; 1 7/3 c 4 1/4 &gt; 2 3/4 d 1/2 &lt; 1/4
    12·1 answer
  • 7thh grade math help me plzzzzzzz
    8·1 answer
  • For each situation, determine the slope and y-intercept of the graph of the equation that describes the situation.
    7·1 answer
  • Reflect the given triangle over the x axis. <br> [3 6 3<br> -3 3 3]
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!