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kkurt [141]
2 years ago
8

Solve this equation. 1+1 = ?

Mathematics
1 answer:
max2010maxim [7]2 years ago
5 0

Answer:

2

Step-by-step explanation:

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Hi can someone help me with this?
zalisa [80]

Answer:

2^{2} or 4

Step-by-step explanation:

7 0
2 years ago
The radius of a circle is 8 kilometers. What is the area?
Scorpion4ik [409]

Answer:

Area of the circle=200.96 km^2

Step-by-step explanation:

Area of a circle=\pi *r*r

For radius(r)=8 km

The area of the circle is :

                 =\pi *8*8

As:    

    \pi =\frac{22}{7}=3.14

Area of the circle:

                        =3.14*8*8\\\\=3.14*64\\\\=200.96km^2

The Area of the circle with the radius of 8km is 200.96 km^2

7 0
2 years ago
Read 2 more answers
A truck is carrying cranberry juice, grape juice, and pineapple juice bottles in a ratio of
satela [25.4K]

Answer:

140

Step-by-step explanation:

7- Cranberry

2:Grape = 40 so 40/2 = 1

3:Pineapple

1= 20 juices

7+2+3 is 12

20 x 12 is 140

8 0
2 years ago
Read 2 more answers
Data is collected to compare two different types of batteries. We measure the time to failure of 12 batteries of each type. Batt
-Dominant- [34]

Using the t-distribution, it is found that since the <u>test statistic is greater than the critical value for the right-tailed test</u>, it is found that there is enough evidence to conclude that Battery B outlasts Battery A by more than 2 hours.

At the null hypothesis, it is <u>tested if it does not outlast by more than 2 hours</u>, that is, the subtraction is not more than 2:

H_0: \mu_B - mu_A \leq 2

At the alternative hypothesis, it is <u>tested if it outlasts by more than 2 hours</u>, that is:

H_1: \mu_B - \mu_A > 2

  • The sample means are: \mu_A = 8.65, \mu_B = 11.23
  • The standard deviations for the samples are s_A = s_B = 0.67

Hence, the standard errors are:

s_{Ea} = S_{Eb} = \frac{0.67}{\sqrt{12}} = 0.1934

The distribution of the difference has <u>mean and standard deviation</u> given by:

\overline{x} = \mu_B - \mu_A = 11.23 - 8.65 = 2.58

s = \sqrt{s_{Ea}^2 + s_{Eb}^2} = \sqrt{0.1934^2 + 0.1934^2} = 0.2735

The test statistic is given by:

t = \frac{\overline{x} - \mu}{s}

In which \mu = 2 is the value tested at the hypothesis.

Hence:

t = \frac{\overline{x} - \mu}{s}

t = \frac{2.58 - 2}{0.2735}

t = 2.12

The critical value for a <u>right-tailed test</u>, as we are testing if the subtraction is greater than a value, with a <u>0.05 significance level</u> and 12 + 12 - 2 = <u>22 df</u> is given by t^{\ast} = 1.71

Since the <u>test statistic is greater than the critical value for the right-tailed test</u>, it is found that there is enough evidence to conclude that Battery B outlasts Battery A by more than 2 hours.

A similar problem is given at brainly.com/question/13873630

7 0
2 years ago
a family's monthly utility costs are phone 200 electric 100 Cable TV 100 water and gas 50 internet 50 by eliminating cable by wh
AleksandrR [38]

Answer:

500

Step-by-step explanation:

I'm not sure

6 0
3 years ago
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