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Komok [63]
3 years ago
7

3(a + 4) – 5(a – 2) = 22

Mathematics
2 answers:
nekit [7.7K]3 years ago
5 0

\text {Hey! Let's Solve this Problem!}

\text {\underline {The First Step is to Simplify}}

\text {3*a=3a \rightarrow {3*4=12}}\text {3*a=3a}\\\text {3*4=12}

\text {-5*a=-5a}\\\text {-5*-2=10}

\text {Your New Problem Is: 3a+12+-5a+10=22}

\text {\underline {The Next Step is to Combine Like Terms}}

\text {3a+-5a=-2a}\\\text {12+10=22}

\text {Your New Problem Is: -2a+22=22}

\text {\underline {The Next Step is to Subtract 22}}

\text {-2a+22-22=22-22}

\text {Your New Problem Is: -2a=0}

\text {\underline {The Final Step is to Divide 2}}

\text {-2a/2=0/2}

\text {Your Answer Would Be:}

\huge\boxed {a=0}

\text {Best of Luck!}

liberstina [14]3 years ago
3 0

Answer:

0

Step-by-step explanation:

3(a + 4) - 5(a - 2) = 22

3a + 12 - 5a + 10 = 22

-2a + 22 = 22

-2a = 0

a = 0

I hope this helps you :)

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using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?
mylen [45]

Correct Question:

Tim is investigating the relationship between the number of years since a tree was planted and the height of the tree in feet. His data are shown in the table. Years Since Tree was Planted vs. Height of Tree

Years since the tree was planted, x

Height of tree in feet, y

2, 17, 3, 25, 5, 42, 6, 47, 7, 54, 9, 69

Using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?

Answer/explanation:

There is no good prediction for the height of the tree when it is 100 years old. If you analyze careful in details the regression calculator you realize that it probably will not valid that far in to the future say 100 years.

6 0
3 years ago
A cosine function has a period of 4, a maximum value of 20, and a minimum value of 0. The function is not a reflection of its pa
Readme [11.4K]

Answer:

the third one

Step-by-step explanation:

6 0
3 years ago
Six sophomores and 14 freshmen are competing for two alternate positions on the debate team. Which expression represents the pro
Elanso [62]

Answer:

<em>Choose the first alternative</em>

\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}

Step-by-step explanation:

<u>Probabilities</u>

The requested probability can be computed as the ratio between the number of ways to choose two sophomores in alternate positions (N_s) and the total number of possible choices (N_t), i.e.

\displaystyle P=\frac{N_s}{N_t}

There are 6 sophomores and 14 freshmen to choose from each separate set. There are 20 students in total

We'll assume the positions of the selections are NOT significative, i.e. student A/student B is the same as student B/student A.

To choose 2 sophomores out of the 6 available, the first position has 6 elements to choose from, the second has now only 5

_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C} \text{ ways to do it}

The total number of possible choices is

_{2}^{20}\textrm{C} \text{ ways to do it}

The probability is then

\boxed{\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}}

Choose the first alternative

7 0
3 years ago
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Can someone help with this question?​
Marizza181 [45]
Nooooooo sorry. Can’t
5 0
3 years ago
What is 436/85 as a mixed number.?
ivann1987 [24]

Answer:

5  11/85

Step-by-step explanation:

First see how many times a whole number can be found.

436/85 = 5.1294

The denominator goes into the numerator 5 times.

Now we find a new numerator.

436 - (85 * 5) = 11 (this is the amount left over after we made 5 wholes.)

Now we see 5 11/85

It cannot be simplified further.

7 0
3 years ago
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