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cricket20 [7]
2 years ago
9

What does the expression 3(20+15) represent?

Mathematics
2 answers:
fgiga [73]2 years ago
7 0

Answer:

It represents 3x20 +3x15

Step-by-step explanation:

melomori [17]2 years ago
7 0

The expression 3(20+15) represents 20+15 then multiplying it by three.

If you were to solve the expression, the answer would be 105.

20 + 15 = 35

35 x 3 OR 35(3) OR 35 ∙ 3 = 105

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Find B round to the nearest tenth!!!! laws of cosines!!!!​
AlexFokin [52]

Answer:

32.7°

Step-by-step explanation:

Use the formula for law of cosines, for this question we need so solve for angle B, so use...

b² = a² + c² - 2(a)(c)Cos B

We are given a, b, and c, so plug them in...

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Now simplify...

3,025 = 8100 + 2500 - (9000)Cos B

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3 0
3 years ago
1. The length of a rectangle is 8.7cm.
Shkiper50 [21]
The width is 9.982 cm and the area is 34.07 and the diagonal is 9.52 I have I answered what you’re asking.
7 0
3 years ago
Please Help!!
GarryVolchara [31]

Answer:

D:) (2,2,) is the Answer

Step-by-step explanation:

Solve the following system:


{X - 2 Y = -2 | (equation 1)


{3 X - 2 Y = 2 | (equation 2)



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{3 X - 2 Y = 2 | (equation 1)


{X - 2 Y = -2 | (equation 2)



Subtract 1/3 × (equation 1) from equation 2:


{3 X - 2 Y = 2 | (equation 1)


{0 X - (4 Y)/3 = (-8)/3 | (equation 2)



Multiply equation 2 by -3/4:


{3 X - 2 Y = 2 | (equation 1)


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Add 2 × (equation 2) to equation 1:


{3 X+0 Y = 6 | (equation 1)


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Divide equation 1 by 3:


{X+0 Y = 2 | (equation 1)


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Collect results:


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4 0
3 years ago
Read 2 more answers
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PSYCHO15rus [73]

Answer:

8x=32\\2y=-24

Step-by-step explanation:

When solving for 1 variable, set the other to 0 and solve.

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3 years ago
Which of the following is the value of 2x' +5x+9 when x =10?
stealth61 [152]

Answer:

The correct answer is: 259.

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