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3 years ago

I need help with this

Mathematics

1 answer:

RUDIKE [14]3 years ago

6 0

The answer is square root of 46. The first two are somewhere in between 5 and the last one is after 7. C was the only one that lied in 6.7

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Factor completely 9x^2-4

GarryVolchara [31]

Answer:

(3x-2)(3x+2)

When multiplied out it equals the original expression

8 0

3 years ago

Read 2 more answers

Help me plssssssssssssss

AleksandrR [38]

Answer:

Step-by-step explanation:

Do you need help with all of the questions? Sorry I thought this was the comment box.

7 0

2 years ago

Kamal wrote the augmented matrix below to represent a system of equations

Alina [70]

Consider the operation is $R_2\to -3R_2$ .

Given:

The augmented matrix below represents a system of equations.

$\left[\left.\begin{matrix}1&0&1\\1&3&-1\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-9\\-2\end{matrix}\right]$

To find:

Matrix results from the operation $R_2\to -3R_2$ .

Step-by-step explanation:

We have,

$\left[\left.\begin{matrix}1&0&1\\1&3&-1\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-9\\-2\end{matrix}\right]$

After applying $R_2\to -3R_2$ , we get

$\left[\left.\begin{matrix}1&0&1\\-3(1)&-3(3)&-3(-1)\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-3(-9)\\-2\end{matrix}\right]$

$\left[\left.\begin{matrix}1&0&1\\-3&-9&3\\3&2&0\end{matrix}\right|\begin{matrix}-1\\27\\-2\end{matrix}\right]$

Therefore, the correct option is A.

7 0

3 years ago

What is the answer to this please help

lora16 [44]

Answer:

A = 140

Step-by-step explanation:

Area of a triangle:

A = 1/2bh

Given:

b = 20

h = 14

Work:

A = 1/2bh

A = 1/2(20)(14)

A = 10(14)

A = 140

6 0

3 years ago

A student has 6 nickel 14 dimes and 8 quarter. What is the total number of coins?

S_A_V [24]

There is 28 coins total

7 0

2 years ago

I need help with this ​

I need help with this