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
Brrunno [24]
3 years ago
6

The area of a rectangle is 0.8 square units. The length is 3.2 units and the width is x units.

Mathematics
2 answers:
KengaRu [80]3 years ago
6 0

Answer:

Option 1 - x=0.25

Step-by-step explanation:

Given : The area of a rectangle is 0.8 square units. The length is 3.2 units and the width is x units.

To find : What is the value of x?

Solution :

The area of the rectangle is given by,

A=L\times W

The length of the rectangle is L=3.2 units

The width of the rectangle is W=x units

The area of the rectangle is A=0.8 square units

Substitute the value in the formula,

0.8=3.2\times x

x=\frac{0.8}{3.2}

x=0.25

Therefore, Option 1 is correct.

The value of x is 0.25.

Naddika [18.5K]3 years ago
3 0
Area= l*b
0.8=3.2*x
0.8/3.2=x
x=0.25 units
You might be interested in
5.
nikitadnepr [17]

Answer:

i am not so sure but I think its 10x = 33

3 0
3 years ago
43,475 nearest thousand
Serjik [45]
43000 is your answer I know because I know
3 0
3 years ago
Read 2 more answers
Starting at home, Omar traveled uphill to the gift store for 30 minutes at just 10 mph. He then traveled back home along the sam
hichkok12 [17]
I guess you want to find the average speed for the whole journey

average speed = distance travelled / time

the distance from home to the shop =   speed * time = 0.5*10 = 5 miles

time for travelling back =  distance / speed = 5/30 = 1/6 hours

average speed for whole journey = 10 / (1/2 + 1/6) = 10 *  3 / 2 = 15 mph

4 0
3 years ago
Juanita has saved 35% of the money that she needs to buy a new bicycle. If she has saved $63, how much money does the bicycle co
Oksanka [162]
The 63 dollars is the 35 percent, so you would need to times that by whatever to get your 100% or at least around that.

So 63=35%
Hope that helped because that's all I know


6 0
3 years ago
A simple random sample of 28 Lego sets is obtained and the number of pieces in each set was counted.The sample has a standard de
Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

Given that:

A simple random sample n = 28

sample standard deviation S = 12.65

standard deviation \sigma = 11.53

Level of significance ∝ = 0.05

The objective is to test the claim that the number of pieces in a set has a standard deviation different from 11.53.

The null hypothesis and the alternative hypothesis can be computed as follows:

Null hypothesis:

H_0: \sigma^2 = \sigma_0^2

Alternative hypothesis:

H_1: \sigma^2 \neq \sigma_0^2

The test statistics can be determined by using the following formula in order to test if the claim is statistically significant or not.

X_0^2 = \dfrac{(n-1)S^2}{\sigma_0^2}

X_0^2 = \dfrac{(28-1)(12.65)^2}{(11.53)^2}

X_0^2 = \dfrac{(27)(160.0225)}{132.9409}

X_0^2 = \dfrac{4320.6075}{132.9409}

X_0^2 = 32.5002125

X^2_{1- \alpha/2 , df} = X^2_{1- 0.05/2 , n-1}

X^2_{1- \alpha/2 , df} = X^2_{1- 0.025 , 28-1}

From the chi-square probabilities table at 0.975 and degree of freedom 27;

X^2_{0.975 , 27} = 14.573

X^2_{\alpha/2 , df} = X^2_{ 0.05/2 , n-1}

X^2_{\alpha/2 , df} = X^2_{0.025 , 28-1}

From the chi-square probabilities table at 0.975 and degree of freedom 27;

X^2_{0.025 , 27}= 43.195

Decision Rule: To reject the null hypothesis if X^2_0  \ >  \ X^2_{\alpha/2 , df}  \ \  \ or \ \ \   X^2_0 \  < \  X^2_{1- \alpha/2 , df} ; otherwise , do not reject the null hypothesis:

The rejection region is X^2_0  \ >  43.195 \ \  \ or \ \ \   X^2_0 \  < \  14.573

Conclusion:

We fail to reject the null hypothesis since  test statistic value 32.5002125  lies  between 14.573 and 43.195.

6 0
3 years ago
Other questions:
  • Sarah spends a total of $60. Based on the information in the table, how many people attended the craft demonstration?
    5·2 answers
  • Find the unknown side length, x. Write your answer in simplest radical form.
    12·2 answers
  • WHOEVER GETS IT RIGHT GETS BRAINLIEST
    7·1 answer
  • Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, an
    15·1 answer
  • Explore and review six different ways of classifying triangles.
    13·1 answer
  • What is the greatest common factor of 30 and 50
    7·1 answer
  • Shari had six dimes and nine nickels.Did she have enough money to buy a $0.99 pack of gum
    11·2 answers
  • )
    14·1 answer
  • -2/9 - 1/12 - 7/18<br> Whats the answer
    10·1 answer
  • Diane got a prepaid debit card with $20 on it. For her first purchase with the card, she bought some bulk ribbon at a craft stor
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!