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Travka [436]
3 years ago
10

The measure of an angle is fifty-nine times the measure of a supplementary angle. What is the measure of each angle?

Mathematics
1 answer:
vaieri [72.5K]3 years ago
3 0
So
supplementary angles are adding up to 180
lets say they are x and y
x+y=180

x is 59 times y
x=59y
subsitute

59y+y=180
add
60y=180
divide 60
y=3
subsitute
x=59y
x=59(3)
x=177

angles are
3 and 177 degrees
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2 is multiplied by 4 to get to 8, so 5 must be multiplied by 4 to get to 20.

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Please help me ASAP?!!
Blababa [14]

Answer:

(0,-5) and (-4,3)

Step-by-step explanation:

The given equations are

\left \{ {{x^2+y^2=25} \atop {2x+y=-5}} \right.

Make y the subject in the second equation;

y=-2x-5

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x^2+(-2x-5)^2=25

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x^2+4x^2+20x+25=25

x^2+4x^2+20x+25-25=0

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y=-2(0)-5=-5

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kaheart [24]

Answer:

a. two-tailed test

b. reject H0 if Z>1.96 or Z<-1.96

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Step-by-step explanation:

We will use a Z test to resolve this, an it will be a two-tailed test because the hypothesis statements are not indicating a specific direction for the significant difference (H0 : μ1 = μ2 ; H1 : μ1 ≠ μ2), this also means that the significanclevel will be divided between the both tails (2.5% en each tail for the rejection regions). See attached drawing for reference.

We need to find our critical value:

Zα/2 = Z(0.05/2) = 0.025

If we look for 0.025 in a Z table we will find that the critical value is 1.96 to the right, and by symmetry -1.96 to the left. So our decision rule will be to reject H0 if Z>1.96 or Z<-1.96

The Z test will be done using the next equation:

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The P-value for this test would be represented by the probability of Z being greater than 1.73, so we can look for it in any Z table, finding that its value is 0.0418, and because P-value>0.025 we again confirm that we don't have evidence statistically significant to reject the null hypothesis

4 0
3 years ago
I wrote an equation using parentheses and all four operations with an answer of 25 what might the equation have been
ddd [48]
25=
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8 0
3 years ago
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