How can I solve this problem

Three straight lines are shown in the diagram. 310° a C 38% 87%

NeX [460]

Answer:

a is 50

b is 100

and c is 130

Step-by-step explanation:

1) the reason why a is 50 because a circle has a constant angle which is 360 so we just need to subtract 360 by 310 to find out the missing angle to complete the entire circle.

2) a straight angle has a constant angle which is 180 degrees and now we have the given angle 80 so to complete the straight angle we just need to subtract 180 to 80.

3) now as we've found a, which is 50 degrees, we now also know that a straight angle is 180 degrees so just subtract 180 by 50 so we get 130.

I'm sorry I'm really bad at explanations but I tried and I hope it helps.

thank you

3 0

2 years ago

Read 2 more answers

Write 3435.332 out using words (Pic for friends)

andrezito [222]

three thousand four hundred thirty-four and three hundred thirty-two thousandths

5 0

3 years ago

Which relationship is always true for the angles x,y and z of triangle ABC

bixtya [17]

Answer:

B. y + z = x

Step-by-step explanation:

x is an exterior angle of the triangle.

y and z are the opposite angles opposite the exterior angle.

The exterior angle theorem of a triangle states that the measure of an exterior angle equals the measure of the sum of the two angles opposite the exterior angle.

Thus:

y + z = x

7 0

4 years ago

С 5 ө А: 15 B Nearest tenth

lubasha [3.4K]

Step-by-step explanation:

try 5 hope this helped you

5 0

3 years ago

A data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66

blondinia [14]

Answer:

The 99% confidence intervals are

(98.4346 , 98.7654)

C) This suggests that the mean body temperature could very possibly be 98.6degrees°F.

Step-by-step explanation:

Given data a data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66degreesF

sample size n = 106

Mean of the population ' μ' = 98.7degreesF

standard deviation of population 'σ' = 0.66degreesF

Mean of the sample x⁻ = 98.6degreesF

Level of significance ∝ = 0.99 0r 0.01

Confidence limits :-

The values $(x^{-} - 2.58\frac{S.D}{\sqrt{n} } ,x^{-} +2.58\frac{S.D}{\sqrt{n} } )$ are called 99% of confidence limits

For the mean of the Population corresponding to the given sample.

$(98.6 - 2.58\frac{0.66}{\sqrt{106} } ,98.6 +2.58\frac{0.66}{\sqrt{106} } )$

on calculation, we get

(98.6 - 0.1654,98.6 + 0.1654)

The 99% confidence intervals are

(98.4346 , 98.7654)

C) This suggests that the mean body temperature could very possibly be 98.6degrees°F.

3 0

3 years ago