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3 years ago

The product of six and a number is 72.

Mathematics

2 answers:

Art [367]3 years ago

3 0

Answer:

Step-by-step explanation:

6 * x = 72

x = 72 / 6

x = 12

Phantasy [73]3 years ago

3 0

Answer:

Step-by-step explanation:

Product = Multiplication

Let's use x to represent "a number"

6 * x = 72

Divide both sides of the equation by 6

x = 72/6 = 12

Hope this helps :)

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-7x^2+42x-56=0<br> Factored

mamaluj [8]

Answer:

Step-by-step explanation:

-7(x^2 -6x +8)=0

-7(x-4)(x-2)=0

4 0

3 years ago

How do I simply this radical expression?

Karolina [17]

Answer:

$1000±100\sqrt{55}$

Step-by-step explanation:

To simplify that expression, first we need to find the largest common of the expression inside the radical, in this case: 2.200.000.

We know that 2.200.000 = 2 · 2 · 2 · 2 · 2 · 2 · 5 · 5 · 5 · 5 · 5 · 11 = $2^{6}$ × $5^{5}$ × $11$

Now, $\sqrt{2^{6}5^{5}11} = 200\sqrt{55}$ .

Now we have: $\frac{2000±200\sqrt{55}}{2}$

Dividing by 2: $1000±100\sqrt{55}$

So the simplified expression is: $1000±100\sqrt{55}$

4 0

4 years ago

In a recipe for fizzy grape juice, the ratio of cups of sparkling water to cups of grape juice concentrate is 3 to 1. a) Find tw

Verizon [17]

Answer:

$6:2,\,9:3$

Step-by-step explanation:

Given: The ratio of cups of sparkling water to cups of grape juice concentrate is $3:1$ in a recipe for fizzy grape juice.

To find: two more ratios of cups of sparkling water to cups of juice concentrate that would make a mixture that tastes the same as this recipe

Solution:

Equivalent ratios are the ratios that have the same value.

Find two ratios equivalent to $3:1=\frac{3}{1}$

Multiply both numerator and denominator of $\frac{3}{1}$ by 2

$\frac{3(2)}{1(2)} =\frac{6}{2}$

Multiply both numerator and denominator of $\frac{3}{1}$ by 3

$\frac{3(3)}{1(3)} =\frac{9}{3}$

So, two more ratios of cups of sparkling water to cups of juice concentrate that would make a mixture that tastes the same as this recipe are $6:2,\,9:3$

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3 years ago

RESEARCH STUDY 8.2: Dr. Moynihan conducts a study examining the relationship between the number of panic attacks a person experi

snow_lady [41]

Answer:

A. Negative association, not statistically significant and very weak effect size

B. Negative association, statistically significant and very weak size.

C. Positive association, statistically significant and strong effect size.

Step-by-step explanation:

Cohen's d is an effect size used to indicate the standardised difference between two means. It can be used, for example, to accompany reporting of t-test and ANOVA results. It is also widely used in meta-analysis. Cohen's d is the difference between two group means divided by the pooled standard deviation for the two groups.

A statistically significant result is a result that is always not attributed to chance attributed to chance. The probability value shows the probability of observing the difference if no difference exists.

In statistics , two variables is said to have negative association when the values of one variable seem to decrease as the values of the other variable increase. In statistics, a perfect negative association is represented by the value -1.00, while a 0.00 indicates no association.

A (number of panic attacks in the past month and neuroticism): r = - .03, not sig.

Answer: Negative association, not statistically significant and very weak effect size.

B (number of panic attacks in the past month and number of nightmares in the past month): r = - .14 (p = .05).

Answer: Negative association, statistically significant and very weak size.

C (number of nightmares in the past month and neuroticism): r = .48 (p = .003).

Answer: Positive association, statistically significant and strong effect size.

It is important to note that:

There is covariance because there is presence of significant correlation. You cannot say for a fact about temporal precedence because it is not clear if neuroticism or nightmares came first. You also can't rule out the possibility this relationship is due to a third variable, hence Dr. Moynihan cannot say that neuroticism causes nightmares.

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4 years ago

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Hard! !!!!!!!!!!!!<br><br> 123x452-123=

ivann1987 [24]

Answer:

55,473

Step-by-step explanation:

I hope this helps! Have a nice day :)

8 0

3 years ago

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