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Salsk061 [2.6K]
3 years ago
10

Use the order of operations to evaluate this expression: 7+(5-9)2 + 3(16-8).​

Mathematics
1 answer:
Murljashka [212]3 years ago
6 0

Answer:

23

Step-by-step explanation:

Order of Operations: BPEMDAS

1. Brackets

2. Parenthesis

3. Exponents

4. Multiplication

5. Division

6. Addition

7. Subtraction

Left to Right

Step 1: Write expression

7 + (5 - 9)2 + 3(16 - 8)

Step 2: Parenthesis (subtraction)

7 + (-4)2 + 3(8)

Step 3: Parenthesis (multiplication)

7 - 8 + 24

Step 4: Subtract

-1 + 24

Step 5: Add

23

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ziro4ka [17]
I think that it is A
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3 years ago
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Triangle ABC is represented by the drawing below.
zhannawk [14.2K]

Step-by-step explanation:

Therefore,

(x+20) + (x-10) + (2x-30) = 180° (Sum of interior angles of a triangle)

Or, x+x+2x+20-10-30 = 180°

Or, 4x-20 = 180°

Or, 4x= 180+20

Or, 4x= 200°

Or, x= 200°/4

Therefore, x= 50°

So,

(x+20)

= 50+20

=70°

(x-10)

= 50-10

40°

(2x-30)

= 2×50-30

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Hope it helped, If it did, please mark it as the brainliest answer :)

3 0
3 years ago
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sergiy2304 [10]

After reflected over  the triangle the point a become A = (-1,-6). The option c is correct.

According to the statement

we have given that the a triangle ABC at the points A=(1,6) B=(-3,5) C=(7,1), and we have to find the points of a when the triangle is first reflected over the y axis.

So, For this purpose

we know that the when the triangle is at the x axis then the point A is A=(1,6).

But when the triangles reflected over the y - axis then the point A goes to the negative side of the graph. In other  words whole of the triangle shift to the negative side of the graph. That's why the point become negative.

So, The option c is correct. After reflected over  the triangle the point a become A = (-1,-6)

Learn more about Triangle here

brainly.com/question/1675117

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4 0
1 year ago
Which function family are these 3? thanks..​
Julli [10]

Answer:

1) Function; Linear Function (y=x)

2) Function; Exponential Function (y=bˣ)

3) Not a function.

Step-by-step explanation:

So, let's go through each table of values. I'm also going to graph them (see attached graphs) because it will make things simpler and provide a visual.

First, also recall what the definition of a function is. A function is a function if and only if an x only has <em>one</em> distinct y-value. No x can have two or more y-values. For instance, (1,2) and (1,3) is <em>not</em> a function between the x repeats. So, let's go through the choices:

1)

We have the table as shown. Let's plot the points. See TABLE 1:

First, there are no repeating x-values, so we can be sure that this is indeed a function.

Looking at the graph, we can see that this resembles a linear graph. So, the parent function of this is a line.

The parent function of a line is:

y=x

So, table 1 is associated with a linear function.

2)

Let's again plot the points. See TABLE 2.

Again, there are no repeating x-values, so this is also a function.

Looking at the graph, this resembles an exponential function. The function increases slowly at first but starts increasing increasingly fast. The parent function is thus an exponential function.

So, table 2 is associated with an exponential function.

3)

First, notice how all the x-coordinates are repeating. And since they do <em>not</em> equal the same thing, this is not a function.

Table 3 is not a function and so has no corresponding family function.

7 0
3 years ago
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Help please i need the answer.
kow [346]

i think you just have to do 3 + 14+2+2+3and then solve i guess

7 0
2 years ago
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