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Nataly_w [17]
3 years ago
8

Convert 0.4 J to kJ. Please show working

Mathematics
2 answers:
VLD [36.1K]3 years ago
8 0
0.0004. Just like what the other comment said, divide the value of energy by 1000
dybincka [34]3 years ago
7 0

Answer:

0.0004

Step-by-step explanation:

divide the energy value by 1000

0.4/1000

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12+root of 35 divided by 2 + 12-2 root of 35 divided by 2
nadya68 [22]
So : 12+ \frac{\sqrt{35}}{2} + \frac{12-2 \sqrt{35} }{2}?

First, you want to bring everything together on the top of the fraction. 
12=24/2 so you can have \frac{24+ \sqrt{35}+12-2 \sqrt{35} }{2}

Add like terms -- 12 +24 = 36       \sqrt{35}-2 \sqrt{35} = \sqrt{35}

Now we are at \frac{24+ \sqrt{35} }{2} Which is the lowest possible simplified version while remaining at exact value. 

Feel free to check my math! I kinda did this off the top of my head. 
8 0
3 years ago
Brenna writes a product of six negative factors. She uses
IgorC [24]

Answer: (A) The product of two numbers with the same sign is positive.

Since the numbers in each pair have the same sign, the product will be positive.

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3 years ago
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What is the mean weight ___ pounds ?
natulia [17]
It is 84 ibs
Explanation
It’s actually easy if you learn 5 minutes of it
But thats the correct answer
8 0
3 years ago
!! PLEASE I NEED HELP ASAP, I WILL MARK THE FIRST PERSON THAT ANSWERS WITH THE RIGHT ANSWER THE BRAINIEST !!!
Tasya [4]

Answer:

A is the answer

Step-by-step explanation:

7 0
3 years ago
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The following data was collected to explore how the average number of hours a student studies per night and the student's GPA af
Mekhanik [1.2K]

Answer:

Pvalue = 0.1505

y = 0.550x1 + 3.600x2 + 7.300

Step-by-step explanation:

Given the data :

Study Hours GPA ACT Score

5 4 27

5 2 18

5 3 18

1 3 20

2 4 21

Using technology, the Pvalue obtained using the Fratio :

F = MSregression / MSresidual = 30.228571/ 8.190476 = 3.69

The Pvalue for the regression equation is:

Using the Pvalue from Fratio calculator :

F(1, 3), 3.69 = 0.1505

Using the Pvalue approach :

At α = 0.01

Pvalue > α ; Hence, we fail to reject H0 and conclude that ; There is not enough evidence to show that the relationship is statistically significant.

The regression equation :

y = A1x1 + A2x2 +... AnXn

y = 0.550x1 + 3.600x2 + 7.300

x1 and x2 are the predictor variables ;

y = predicted variable

8 0
3 years ago
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