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gulaghasi [49]
3 years ago
11

A triangle has two angle measures of 20 degrees and 30 degrees. Find the third angle. This triangle is a(n) ________ triangle

Mathematics
2 answers:
Artist 52 [7]3 years ago
7 0

Answer:130 degrees. it is scalene triangle

Step-by-step explanation:

all angles in a triangle add up to 180.

20+30=50

180-50=130

a scalene triangle has all sides different

Zielflug [23.3K]3 years ago
4 0

Answer:

an obtuse triangle cause the other angle is more than 90

Step-by-step explanation:

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Please help me understand, thank you.
monitta

Answer:

195.6 mph, 069 degrees

Step-by-step explanation:

two different ways, same result

7 0
3 years ago
​ y=3x+3 y=−2x+3 ​ how many solutions does the system have
allochka39001 [22]

Answer: One solution

Step-by-step explanation:

y = 3x + 3

y = -2x + 3

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

To solve this, you need to understand a few things:

a) If two lines have the same slope but different y-intercepts, they are parallel when graphed and thus do not have any solutions

b) If two lines have the same slope and same y-intercepts, they are the same line when graphed and thus do not have infinitely many solutions

c) If two lines have different slopes (and/or y-intercepts), they have one solution

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

These two lines have different slopes but the same y-intercept (condition c)

So they have one solution

5 0
2 years ago
A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confid
katrin [286]

Answer:

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 865, \pi = \frac{408}{865} = 0.4717

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 - 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.4384

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 + 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.5050

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

6 0
3 years ago
Estimate the perimeter of the figure to the nearest whole number. PLZ SOLVE PLZ
soldier1979 [14.2K]

Answer:

The perimeter is approximately 19.

Step-by-step explanation:

Three of the sides are roughly four segments long and two are around three and a half.

4 + 4 + 4 + 3.5 + 3.5 = 19

7 0
3 years ago
Read 2 more answers
Suddenly, the number of problems the mathletes have to solve increases by 60%! To keep on track, the mathletes try to go faster
sesenic [268]

Answer:

28%

Step-by-step explanation:

I did it and it was right

4 0
3 years ago
Read 2 more answers
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