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Flura [38]
3 years ago
14

Angle 1 is 3 times angle 2. Find angle 2

Mathematics
1 answer:
nordsb [41]3 years ago
6 0
Angle 2 is 40 degrees

Explanation:
A straight line is always 180 degrees, they gave us 160 degrees so you just subtract 180-160 to get 20 degrees for angle 3.

Since that angle is a part of the triangle and we’re only focusing on angles 1 and 2, subtract 20 from 180 since a triangle is 180 degrees.

Then you get 160, divide that by 4 to get 40 degrees, multiply 40 by 3 to get angle 1 which is 120. 120+20 (20 from angle 3) gives us 140. 180-140 is 40 degrees which is angle 2.
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Evaluate -8w + 3z when w = 2.2 and z = -9.1.
atroni [7]
-8w+3z
w=2.2
z=-9.1

-8(2.2)+3(-9.1)
-17.6-27.3
-44.9

The answer is -44.9
8 0
3 years ago
Read 2 more answers
Can someone do this fast ? I need it for tomorrow
gregori [183]

Answer:

Step-by-step explanation:

hg(x) means you multiply h(x) times g(x) and then we will set it equal to 3x^2+x-1.

hg(x) = x^2(x+2) which simplifies to

x^3+2x^2. Now set that equal to 3x^2+x-1:

x^3+2x^2=3x^2+x-1 and get everything on the same side and factor:

x^3-x^2-x+1=0. Factor by grouping:

(x^3-x^2)-(x+1)=0 and factor out what's common in each set of ( ):

x^2(x-1)-1(x-1)=0 which factors out to

(x^2-1)(x-1)=0. But x^2-1 factors somoe to:

(x + 1)(x - 1)(x - 1) = 0 So the solutions for this are

x = -1, 1

7 0
2 years ago
A box of oatmeal must contain 16 oz. The machine that fills the oatmeal boxes is set so that, on the average, a box contains 16.
Vadim26 [7]

Answer:

29. 15.87%

30.  4.75%

31. 0.62%

32. probability cannot be calculated (0%)

Step-by-step explanation:

We have that the formula of the normal distribution is:

z = (x - m) / sd

where x is the value we are going to evaluate, m is the mean and sd is the standard deviation

x = 16 and m = 16.5

when sd = 0.5

z = (16 - 16.5) /0.5

z = -1

Now when looking in the z table, we have that the corresponding value is 0.1587, that is, the probability is 15.87%

when sd = 0.3

z = (16 - 16.5) /0.3

z = -1.67

Now when looking in the z table, we have that the corresponding value is 0.0475, that is, the probability is 4.75%

when sd = 0.2

z = (16 - 16.5) /0.2

z = -2.5

Now when looking in the z table, we have that the corresponding value is 0.0062, that is, the probability is 0.62%

when sd = 0

z = (16 - 16.5) / 0

z = infinity

probability cannot be calculated

4 0
3 years ago
Wanda pays $19.50 per month for her gym membership. She can take yoga classes at her gym that
PSYCHO15rus [73]

Answer: She took 6 yoga classes

Step-by-step explanation: So first

Subtract

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Carry then Divide

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6 0
3 years ago
Solve the equation 6 (t-2)=2t 2
Degger [83]
Is plus 2 or minus 2?
3 0
3 years ago
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