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k0ka [10]
3 years ago
6

Simplify. 42+25 A.21 B.29 C.41 D.51

Mathematics
1 answer:
bearhunter [10]3 years ago
8 0

Im actually pretty sure its C because 4 to the power of 2 is 16 and then add those too up 16+25=41

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Read 2 more answers
Which inequality is true when the value of y is 9?
goldfiish [28.3K]

Answer:

y + 8 > 0.5

Step-by-step explanation:

Let's take a look at each one individually to see whether y = 9 is a possible value for the inequality. First, we'll check out y + 8 < 0.5. If we replace y with 9, we get 9 + 8 < 0.5. 9 plus 8 is 17, so now we have 17 < 0.5. That's not true, because 17 is not smaller than 0.5. So we know that this option is incorrect.

Next, let's look at -y + 8 > 0.5. We replace y with 9 and get -9 + 8 > 0.5, or -1 > 0.5. This isn't true either! -1 is <em>smaller</em> than 0.5, not greater. So this isn't the option either.

We'll now look at y + 8 > 0.5. If we replace y with 9, we get 9 + 8 > 0.5 or 17 > 0.5. This is true, so we can be confident that this is the correct answer! Let's just test the last answer for good measure though.

Is -9 + 8 greater than -0.5? Well, -9 plus 8 is equal to -1, and -1 is <em>not</em> greater than -0.5. So we were correct. y + 8 > 0.5 is true when the value of y is 9.

8 0
2 years ago
Two points located on are J(1,-4) and K(-2,8). What is the slope of ?
vodka [1.7K]

Answer:

-4

Step-by-step explanation:

The slope is usually a function of the differences in y divided by the differences in x, and it can be described in the following equation,

Slope = \frac{y_{1} - y_{2} }{x{1} - x{2}}     (1)

We can select any of the two points to be our first point, let's say, J(1,-4) is point 1, so J (x1,y1). In other words, x_1 = 1 and y_1 = -4 and by the same way, for K(-2,8). Therefore, x_2 = -2 while y_2 = 8. By substituting these values in equation 1, we can deduce the following

slope = \frac{y_2 - y_1}{x_2 - x_1} = \frac{8 - (-4)}{-2 - 1} = \frac{8 + 4}{-2 - 1} = \frac{12}{-3} = -4

3 0
2 years ago
You are at a campus party where there are a total number of n people. The host asked everyone to put their phones in a bowl whil
kirill [66]

Answer:

1, \frac{m}{n}, \frac{1-m}{n}.

Step-by-step explanation:

probability = \frac{Number of Possible Outcomes}{Total Outcomes}

Total number of persons in the party = n

a) Pr ( every person gets their phone back) = Pr (each person picks his phone ) multiplied by number of person

   = \frac{1}{n} × n = 1.

     No of first m persons to pick = m

     No of last m persons to pick = 1 - m

b) Pr (first m persons to pick each gets their phones back) = \frac{m}{n}

c) Pr( first m persons get a phone belonging to last m persons) = \frac{1-m}{n}

3 0
3 years ago
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