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Bas_tet [7]
3 years ago
10

Which expression is equivalent to 3(m − 3) + 4? 3m + 1 3m − 5 3m + 13 3m − 3

Mathematics
2 answers:
Volgvan3 years ago
6 0

Answer:

3m - 5

Step-by-step explanation:

3(m - 3) + 4           Distribute the 3

3m - 9 + 4             Simplify

3m - 5

Alexus [3.1K]3 years ago
4 0

So let's simplify this problem using the distributive property.

The first thing we want to do is change the minus to plus a negative. Now we can distribute or multiply this 3 times each of the terms inside the set of parentheses.

So we get 3 (m) + 3 (-3) + 4 and this simplifies to 3m + -5.

3m + -5 means the same exact thing as 3m - 5.

Work is also attached in the image below.

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Please help me with this
Tju [1.3M]

Answer:

Option 2: m∠1 = 147°, m∠2 = 80°, m∠3 = 148°

Step-by-step explanation:

Step 1: Consider triangle ABC from the picture attached below.

Lets find angle x

x + 47 + 33 = 180 (because all angles of a triangle are equal to 180°)

x = 100°

Angle x = Angle y = 100° (because vertically opposite angles are equal)

Step 2: Find angle 2

Angle 2 = 180 - angle x (because angle on a straight line is 180°)

Angle 2 = 180 - 100

Angle 2 = 80°

Step 3: Find angle z

48 + y + z = 180° (because all angles of a triangle are equal to 180°)

z = 32°

Angle 3 = 180 - angle z (because angle on a straight line is 180°)

Angle 3 = 180 - 32

Angle 3 = 148°

Step 4: Find angle 1

Angle 1 = 180 - 33 (because angle on a straight line is 180°)

Angle 1 = 147°

Therefore m∠1 = 147°, m∠2 = 80°, m∠3 = 148°

Option 2 is correct

!!

3 0
3 years ago
A sequence can be defined by the explicit formula . Which recursive formula represents the same sequence of numbers?
matrenka [14]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Tell whether the ratios are equivalent: 3 days to 4 hours and 9 days to 12 hours. Show your work.
antoniya [11.8K]

Answer

No

Step-by-step explanation:

Since you 4x3=12 3x3 = 9

3 0
3 years ago
Read 2 more answers
the volumes of two spheres are 729 in3 and 27 in3. what is the ratio of their radii, rounded to the nearest whole number?
MaRussiya [10]
The volumes of spheres are proportional to R³. So their 'R's
are proportional to ∛their volumes.

(729/ 27) = 27

∛27 = <u>exactly 3</u> .  No rounding required.
5 0
3 years ago
The following are the last 10 run scores Colin got in cricket:
Solnce55 [7]

Answers:

  • a) Mean = 20.4
  • b) New mean = 20

==================================================

Explanation:

To get the mean, we add up the scores and divide by 10 (because there are 10 scores at first)

28+13+4+12+32+22+13+22+26+32 = 204

204/10 = 20.4

The mean is 20.4

------------

For part b), we redo those steps shown above, but tack 16 onto the list. So we'll add up all the values (including that 16 at the end) and divide by 11 this time.

28+13+4+12+32+22+13+22+26+32+16 = 220

220/11 = 20

The new mean is 20.

The new mean is slightly smaller than the old mean. Notice how 16 is smaller than 20.4, so this new score pulls down the mean just a little bit.

6 0
3 years ago
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