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Mrac [35]
3 years ago
9

1/4 × -2/3 = how do I solve this problem

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
6 0

\bf \cfrac{1}{4}\times \cfrac{-2}{3}\implies \cfrac{1\times -2}{4\times 3}\implies \cfrac{-2}{12}\implies \stackrel{simplified}{-\cfrac{1}{6}}

musickatia [10]3 years ago
3 0

I suggest getting a TI84 Plus calculator! It may not be necessary now, but it'll definitely help later on!

Just type in (1/4)x(-2/3), press math, select fraction (assuming you want a fraction) and you'll get your answer.

Or you could multiply the numerators together (1x-2), and then the denominators together (4x3) and then reduce it to get -1/6.

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A person is purchasing a new golf club bag. The compartment for the golf balls is approximately the shape of a rectangular prism
Lerok [7]

Answer:

The answer to your question is: ≈ 178 balls

Step-by-step explanation:

Data

rectangular prism = 8 in x 11 in x 5 in

golf balls = 1.68 in diameter

Formula

Volume rectangular prism = l x w x h = 8 x 11 x 5 = 440 in³

Volume of ball = (4/3) πr³ = (4/3) (3.1416) (0.84)³ = 2.48 in³

# of balls inside the compartment = volume rectangular prism / volume ball

# of balls = 440 / 2.48

               = 177.4 ≈ 178 balls

8 0
3 years ago
Volume of a cube is 343cm³ . Then the total surface area of the cube is _______ cm². *
MissTica

Answer:

A≈294cm²

-hope this helped

8 0
3 years ago
Read 2 more answers
An educator claims that the average salary of substitute teachers in school districts is less than $60 per day. A random sample
valentina_108 [34]

Answer:

t=\frac{58.875-60}{\frac{5.083}{\sqrt{8}}}=-0.626    

The degrees of freedom are given by:

df=n-1=8-1=7  

The p value would be given by:

p_v =P(t_{(7)}  

Since the p value is higher than 0.1 we have enough evidence to FAIl to reject the null hypothesis and we can't conclude that the true mean is less than 60

Step-by-step explanation:

Information given

60, 56, 60, 55, 70, 55, 60, and 55.

We can calculate the mean and deviation with these formulas:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

Replacing we got:

\bar X=58.875 represent the mean

s=5.083 represent the sample standard deviation for the sample  

n=8 sample size  

\mu_o =60 represent the value that we want to test

\alpha=0.1 represent the significance level

t would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean is less than 60, the system of hypothesis would be:  

Null hypothesis:\mu \geq 60  

Alternative hypothesis:\mu < 60  

The statistic would be given by:

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

Replacing the info we got:

t=\frac{58.875-60}{\frac{5.083}{\sqrt{8}}}=-0.626    

The degrees of freedom are given by:

df=n-1=8-1=7  

The p value would be given by:

p_v =P(t_{(7)}  

Since the p value is higher than 0.1 we have enough evidence to FAIl to reject the null hypothesis and we can't conclude that the true mean is less than 60

3 0
3 years ago
What was an effect of the Second Punic War?
cupoosta [38]

Answer:

ithink its a or c

Step-by-step explanation:

not sure but dang what grade u in??

7 0
3 years ago
In their last game the New England patriots scored 9 points in the first half in the second half they scored three less than two
Marat540 [252]

Answer:

3:5

Step-by-step explanation:

first half : 9

second half : 15

9:15 = 3:5

5 0
3 years ago
Read 2 more answers
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