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Dmitriy789 [7]
3 years ago
13

Expression 1 6 x 7 - 3² - 9 x 9 + 4³ What is the value of Expression 1?

Mathematics
2 answers:
tamaranim1 [39]3 years ago
6 0
6*7-9-9*9+64
42-9-81+64
16
Natalka [10]3 years ago
3 0
6 * 7 - 3^{2} - 9 * 9 + 4^{3}\\
(6*7)-9-(9*9)+64\\
42-9-81+64\\
16
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A committee of 3 is being formed randomly from the employees at a school: 5 administrators, 34 teachers, and 4 staff. What is th
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Answer:0.000810

Step-by-step explanation:

Given

A committee of 3 members is formed using

5 Admin, 34 teachers, and 4 staff

Favorable outcomes are selecting 3 members as Administrators

total members =5+34+4=43

Probability is given by

\Rightarrow P=\dfrac{\text{Favorable}}{\text{Total}}

\Rightarrow P=\dfrac{^5C_3}{^{43}C_3}=\dfrac{10}{43\times 41\times 7}\\\\\Rightarrow P=\dfrac{10}{12,341}=0.000810

6 0
3 years ago
Estimate 16.82-8.264 by first rounding each number to the nearest tenth.
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16.8-8.3=8.5
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8 0
3 years ago
5-8|-2x|=-80<br><br> Blank 1: ?<br> Blank 2: ?
denpristay [2]

Answer:

x=\frac{85}{16}, x=-\frac{85}{16}

Step-by-step explanation:

Hi there!

We are given the absolute value equation:

5-8|-2x|=-80

We want to solve it for x

First, let's make sure that ONLY the absolute value equation is on the left side

So subtract 5 from both sides

-8|-2x|=-85

Now divide both sides by -8

|-2x|=85/8

Now, for an absolute value equation, we can split it up into two parts, as |x| can be equal to both x and -x

In this case, |-2x| can equal to 85/8, but it can also equal -85/8

That's why for absolute value, there are always 2 cases

For the first case, if |-2x| is equal to 85/8:

Note: we open up the absolute value when we are solving a case, as it is one of the possiblities that can happen for the equation. So it would be true.

-2x=85/8

Divide both sides by -2

x=-85/16

In the second case, if -2x is equal to -85/8:

-2x=-85/8

Divide both sides by -2

x=85/16

So the answers are x=\frac{85}{16}, x=-\frac{85}{16}

Hope this helps!

4 0
3 years ago
students donated 2,500 cans of food to the local food pantry last year. They donated 4,000 cans this year. What is the percent i
Tems11 [23]
4,000 - 2,000 = 1,500
8 0
3 years ago
What transformation is made from f(x) → f(-x)?
sineoko [7]

Answer:

A) reflection across the y-axis

Step-by-step explanation:

If f(x)=f(-x), then this says that two y-coordinates are equal for opposite values of x.

Let (a,b) a point on f.

Then f(a)=b.

We also know that f(-a)=b and therefore (-a,b) is also a point on the graph.

If you graph [/tex](-a,b)[/tex] and (a,b) you will see they are symmetrical to each about the y-axis.

Example if given both f(x)=f(-x) and f(2)=3, then f(-2)=3. This means both (2,3) and (-2,3) are points on the graph.

Here is what those two points look like on a Cartesian Plane (please see graph in picture).

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4 years ago
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