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harina [27]
3 years ago
9

Use algebra tiles to model the expression, and then combine like terms. Check all that apply.

Mathematics
2 answers:
Lady_Fox [76]3 years ago
7 0

Answer:

1 and 3

Step-by-step explanation:

option 4 isn’t correct because you can’t combine 5 and 2x. You could if the 5 had an x too

the last one isn’t correct because you aren’t substituting anything

the second isn’t correct because you aren’t combining them all together. You are only combining the ones that are like-terms

Fynjy0 [20]3 years ago
4 0

Answer:

The equivalent expressions is 5+2x

Combine the x tiles and the integer tiles.

Step-by-step explanation:

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If the tangent of an acute angle is 1/4, what is the cosine of that angle?
ozzi

Answer:

0.97

Step-by-step explanation:

It is known that the tangent of an angle is given by the quotient between its sine and its cosine.

tan(x)=\frac{sin(x)}{cos(x)} =\frac{1}{4} \\\frac{1}{4}cos(x)=sin(x)\\

Applying the following property:

sin^2(x) +cos^2(x) = 1\\(\frac{1}{4}cos(x))^2 +cos^2(x) = 1\\\\\frac{17}{16}cos^2(x) = 1 \\cos(x)=0.97

The cosine of that angle is 0.97.

7 0
3 years ago
Select the statements that are true about the values of 0.026 and 2.60
zhannawk [14.2K]
The answers are A and E because .026 x 100 = 2.6 and 2.60 / 100 = .026
3 0
3 years ago
Read 2 more answers
Using a graph, table of values, and/or equations solve the following problem.
german

Answer: the cost of the love seat would be $89

Step-by-step explanation:

Let cost of sofa be x

let cost of love seat be y

x + y = 267

x = 2y

2y + y = 267

3y = 267

3/3y = 267/3

y = 89

hope it helps :)

8 0
3 years ago
Is the following an example of inductive reasoning or deductive reasoning? Your soccer coach tells you it is wise to drink a lot
valina [46]
It would be an inductive reasoning.
7 0
3 years ago
You roll a 6 sided die 2 times what is the probability of rolling a 6 and then rolling a number greater than 2
jek_recluse [69]

Answer:

1/9 probability of rolling a 6 and then a number greater than 2

Step-by-step explanation:

1. Rolling a six on the first go is 1/6 chance

2. Rolling a number greater than 2, for example 4, is also 1/6 chance

3. So we know that at first, there is a 1/6 chance of rolling a 6, now when the die is rolled again, there needs to be a 3, 4, 5 or 6, each of these has a 1/6 chance again

4. So the chance of rolling a 6 and then a 3 is solved by finding the chance of rolling 6, then multiplying that by the chance of rolling a 3 afterwards

5. We get an equation of 1/6 x 1/6 which = 1/36

6. We apply this to the rest of the possible combinations, 6 and then 4 which is 1/36,  6 and then 5 etc.

7. Once we find all possible combinations, we add them up, this means that 6 then 3 = 1/36, 6 then 4 = 1/36, 6 then 5 = 1/36 and 6 then 6 = 1/36 is added so we get 1/36 + 1/36 + 1/36 + 1/36 = 4/36

8. We simplify this to get 1/9

7 0
3 years ago
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