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KatRina [158]
3 years ago
11

Simplify the expression 9− 3(2)2

Mathematics
2 answers:
AleksandrR [38]3 years ago
8 0

Answer:

- 3

Step-by-step explanation:

These are the steps that I used are:

First, use PEMDAS.

Multiply and divide left to right.

3\left(2\right)\cdot \:2

3\left(2\right)=6

=6\cdot \:2 = 12.

= 9-12

Second, add and subtract, (left to right).

9-12=-3

= - 3.

So, 9 - 3(2)2 = -3.

Kazeer [188]3 years ago
3 0

Answer:

-3

Step-by-step explanation:

9-3(2)2

9-(6)2

9-12

-3

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Khan academy again smh. <br>Please answer! Thanks! ​
Vlad [161]

Answer:

The answer is B

Step-by-step explanation:

x/-y is equivalent to -(x/y)

6 0
3 years ago
I can Multiply a 11x6 matric by a 6x7 matrix. The resulting matrix will be ??? Can somebody help me
Bumek [7]

Answer:

The resulting matrix will be 11 * 7

Step-by-step explanation:

Given

Matrices 11 * 6 multiplied by 6 * 7

Required

The dimension of the resulting matrix

When a matrix a * b is multiplies by a matrix b * c, the resulting matrix will be: a * c

In this case:

a * b = > 11 * 6

b * c => 6 * 7

So, the resulting matrix will be:

a * c => 11 * 7

3 0
3 years ago
Identify the equation of the graph shown. A) y = 2x + 3 B) y = 2x - 3 C) y = -2x + 3 D) y = -2x - 3 4)
Anna35 [415]

Answer:

The answers provided aren't reasonable for this graph.

Step-by-step explanation:

The graph's y-intercept is -2, since that is the point where the line intersects the y-axis. The slope is 3x, because the distance from one point to the next is 3 up, 1 right. So the equation for the graph is y = 3x - 2.

4 0
3 years ago
In the diagram, rectangle ABCD is spilt in half by AC. What is the value of tan x?​
LenaWriter [7]

Answer:

23

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume
olga nikolaevna [1]

Given:

The radius, r=4x

The height,

h=21xy^2

To find the volume of the cone:

The volume of the cone formula is,

V=\frac{1}{3}\pi r^2h

Substitute the values of r and h in the above formula we get,

\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}

Hence, the volume of the cone is

V=112\pi x^3y^2

Thus, the correct option is option D.

7 0
1 year ago
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