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3 years ago

What is the value of the expression? 4 to the second power plus 3 to the 3rd power

2 answers:

7 0

$4\ to\ the\ second\ power=4^2=4\cdot4=16\\\\3\ to\ the\ 3rd\ power=3^3=3\cdot3\cdot3=9\cdot3=27\\\\4\ to\ the\ second\ power\ plus\ 3\ to\ the\ 3rd\ power:\\\\4^2+3^3=16+27=\huge\boxed{43}$

Romashka-Z-Leto [24]3 years ago

3 0

4 to the second power: 4²
3 to the third power: 3³
4*4=16
3*3*3=27
16+27=43

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FOR 15 POINTS Which is the solution to the equation 0.5 x + 4.2 = 5.9? Round to the nearest tenth if necessary. 0.9 3.4 5.1 20.2

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Answer:

3.4

Step-by-step explanation:

0.5x+4.2=5.9

Subtract 4.2 from both sides:

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Divide both sides by 0.5:

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3 years ago

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Which equation is a point slope form equation for line AB ? y+1=32(x−1) y+1=−32(x−1) Four-quadrant Cartesian graph with integer

fenix001 [56]

Answer:

The second option is correct. The point slope form of AB is $y+1=\frac{-3}{2}(x-1)$ .

Step-by-step explanation:

The given points are A(-3,5) and B(1,-1).

Slope of a line is

$m=\frac{y_2-y_1}{x_2-x_1}$

Slope of AB is

$m=\frac{-1-5}{1-(-3)}$

$m=\frac{-6}{4}$

$m=\frac{-3}{2}$

The point slope form of a line is

$y-y_1=m(x-x_1)$

Where, m is slope of the line.

Case 1: The slope of the line is $\frac{-3}{2}$ and the point is (-3,5). The point slope form of AB is

$y-5=\frac{-3}{2}(x+3)$

Case 1: The slope of the line is $\frac{-3}{2}$ and the point is (1,-1). The point slope form of AB is

$y+1=\frac{-3}{2}(x-1)$

Therefore the point slope form of AB is $y+1=\frac{-3}{2}(x-1)$ . Option 2 is correct.

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3 years ago

A newborn who weighs 2,500 g or less has a low birth weight. Use the information on the right to find the z-score of a 2,500 g b

shtirl [24]

Answer:

$Z = -2.2$

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 3600, \sigma = 500$