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natta225 [31]
3 years ago
10

Which equation is equivalent to x + x - (-3) = 12?

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0

Answer:

C.) 2x+3 = 12

Step-by-step explanation:

x+x=2x

2x-(-3) is 2x+3

Rate this brainliest

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What is the simplified form of square root of 100x^36? a.10x^18 b.10x^6 c.50x^18 d.50x^6
maw [93]
\sqrt{100x^{36}} = \sqrt{10^2x^{2(18)}} = 10x^{18}

Answer : A 10x¹⁸
7 0
3 years ago
I’ll give brainliest if you answer this correctly
olasank [31]

Answer:

B  y = (-7/4)x - 7

Step-by-step explanation:

Slope intercept form is

y = mx + b

Where m is the slope and b is the y-intercept

m = rise/run

m = ∆y/∆x

m = (y₂ - y₁) / (x₂ - x₁)

m = (-7 - 0) / (0 - -4)

m = -7/4

From the graph the y-intercept

b = -7

-------------------------

y = (-7/4)x - 7

4 0
3 years ago
The sum of twice a number and another number is 24. The difference of twice the first number and the other number is 12. Which s
dem82 [27]

Answer:

The system that models the situation is:

\left \{{{2x + y = 24} \atop {2x - y = 12}} \right.

The solution is:

(9, 6)

Step-by-step explanation:

We must write the equations as indicated in the problem.

The sum of twice a number and another number is 24

<em>a number:</em>  x

<em>other number:</em>  y

Then

2x + y = 24

The difference of twice the first number and the other number is 12

<em>first number: </em> x

<em>other number:</em>  y

Then:

2x - y = 12

The system that models the situation is:

\left \{{{2x + y = 24} \atop {2x - y = 12}} \right.

To solve the system we add both equations to find the value of x

2x + y = 24\\\\2x - y = 12

---------------------

4x +0 = 36\\\\x=\frac{36}{4}\\\\x=9

2(9) +y = 24\\\\y=24-18\\\\y=6

The solution is:

(9, 6)

6 0
3 years ago
Which statement best compares the spread of the data sets?
MrRa [10]

Answer:

Choice B is correct

Step-by-step explanation:

The Interquartile Range (IQR) for Florida, 11, is greater than the IQR for Australia, 4.

The spread of a data set is a measure of the dispersion or variability of the data set. The spread can be measured by various statistical quantities depending on the nature of the data (skewed or symmetric);

The IQR

Variance

Standard Deviation

Range

A box plot is a graphical representation of the five number summary;

The minimum, first quartile, median, third quartile, and the maximum value in that order.

The IQR is defined as;

third quartile - first quartile

With this definition, the Interquartile Range (IQR) for Florida is;

28 - 17 = 11

while the Interquartile Range (IQR) for Australia is;

14 - 10 = 4

Therefore, the Interquartile Range (IQR) for Florida, 11, is greater than the IQR for Australia, 4.

5 0
3 years ago
Please solve. And thank you
Mice21 [21]

Answer:

-12

Step-by-step explanation:

6 0
3 years ago
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