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SOVA2 [1]
4 years ago
11

Which expression is equal to (3x5)x4?

Mathematics
2 answers:
nlexa [21]4 years ago
6 0
The answer is 15x4. This is because using PEMDAS, parenthesis come first.
MaRussiya [10]4 years ago
4 0
(3 x 5) x 4

3 x 5 x 4 

15 x 4 

60
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What is the factor of 4x + 10
Mars2501 [29]

Answer:

2(2x + 5)

Step-by-step explanation:

2 is common to both 4x and 10, so 4x + 10 = 2(2x + 5)

7 0
3 years ago
What is the value of z, rounded to the nearest tenth? use the law of sines to find the answer.
DanielleElmas [232]
We can change the law of sines a little bit to match our problem.

\sf\dfrac{sin(X)}{x}=\dfrac{sin(Y)}{y}=\dfrac{sin(Z)}{z}

We know what angle Y is and what side y is, so let's use that along with angle Z and side z:

\sf\dfrac{sin(Y)}{y}=\dfrac{sin(Z)}{z}

Plug in what we know:

\sf\dfrac{sin(51)}{2.6}=\dfrac{sin(76)}{z}

Multiply 'z' to both sides:

\sf\dfrac{sin(51)}{2.6}z=sin(76)

Divide sin(51)/2.6 to both sides:

\sf z=\dfrac{sin(76)(2.6)}{sin(51)}

Plug it into your calculator.

\boxed{\sf z\approx 3.2}
6 0
4 years ago
Read 2 more answers
Plz help with these 2 questions and thx !
sweet [91]

Answer:

The first is 18.

The second is less than (<).

Step-by-step explanation:

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6 0
3 years ago
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4[5(x + 3) - 2] + 3(x - 1)
Inessa [10]

Answer:

23x + 49

Step-by-step explanation:

4 (5x+15-2)+3x-3

subtract the numbers

4 (5x+13)+3x-3

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5 0
3 years ago
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Which number is a rational number?
motikmotik
17.156 is rational. Hope that helped.
3 0
2 years ago
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