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blagie [28]
3 years ago
8

(9r - 5 ) - ( -4r + 9 ) Can you subtract the expression

Mathematics
2 answers:
viktelen [127]3 years ago
6 0

Answer -36r^2 + 101r - 45

Step-by-step explanation:

Elis [28]3 years ago
4 0

Answer:

13R - (-14)

Step-by-step explanation:

I believe this is the right answer i really hope it is im sorry if its wrong

Have a good day!

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What is the product?
Luba_88 [7]

The correct answer is option C which is  \left[\begin{array}{cc}8&32\\39&15&\\\end{array}\right].

<h3>What is a matrix?</h3>

Matrix is defined as the arrangement of the numbers variables and expressions in the table as rows and columns.

The multiplication of the matrix will be calculated as:-

M = \dfrac{1}{2}\left[\begin{array}{cc}12&64&\\78&30&\\\end{array}\right]

M  =    \left[\begin{array}{cc}\dfrac{12}{2}&\dfrac{64}{2}&\\\dfrac{78}{2}&\dfrac{30}{2}&\\\end{array}\right]

M =     \left[\begin{array}{cc}8&32\\39&15&\\\end{array}\right].

Therefore the correct answer is option C which is  \left[\begin{array}{cc}8&32\\39&15&\\\end{array}\right].

To know more about matrix follow

brainly.com/question/1821869

#SPJ1

3 0
2 years ago
FIND THE EXACT VOLUME PLEASE HELP ILL GIVE BRAINLIESTTTT
Eva8 [605]

Answer:

495 in

Step-by-step explanation:

The formula for the volume of a triangular prism is V = \frac{1}{2} · w · h · l, where w represents with, l represents length, and h represents height. Using this and plugging in the values, we can solve.

V = \frac{1}{2} · 5 · 11 · 18

V = 2.5 · 11 · 18

V = 27.5 · 18

V = 495

hope this helps :)

5 0
3 years ago
Please help please help
stiks02 [169]

I believe the answer should be 102. It has been a long time since I have done one of these but I believe that if you times the outside angle by 2 then it is the angle if the point were to be in the center.

6 0
3 years ago
The ratio of men to women working for a company is 2/3. If ther are 105 employees total, how many women workfor the company
nordsb [41]

Answer: There are 70 women and 35 men.

Step-by-step explanation:

105 divided by 3 is 35 and 105 - 35 is 80.

8 0
3 years ago
Two groups of staff at a store are making flowers to decorate the entrance. If Group A were to do it alone, it would take them 1
Tcecarenko [31]

Answer:

\dfrac{6750}{7}

Step-by-step explanation:

Let x be the number of flowers. If Group A were to make x flowers alone, it would take them 10 hours to complete the task, then they make \dfrac{x}{10} flowers in an hour.  If Group B were to make x flowers alone, it would take them 15 hours to complete the task, then they make \dfrac{x}{15} flowers in an hour.

The groups decided to work together. They can make \dfrac{x}{10}+\dfrac{x}{15}=\dfrac{x}{6} together in an hour and it takes them \dfrac{x}{\frac{x}{6}}=6 hours. Group B took a break for 1 hour and 40 minutes (1\dfrac{2}{3} hour), then Group B works

6-1\dfrac{2}{3}=4\dfrac{1}{3} hours.

Thus,

\dfrac{x}{10}\cdot 6-\dfrac{x}{15}\cdot 4\dfrac{1}{3}=300,\\ \\\dfrac{3x}{5}-\dfrac{13x}{45}=300,\\ \\14x=300\cdot 45=13500,\\ \\x=\dfrac{13500}{14}=\dfrac{6750}{7}.

6 0
3 years ago
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