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elena-s [515]
3 years ago
10

10. If a triangle has an angle of 45° and an angle of 100°, what is the third angle?

Mathematics
2 answers:
katrin [286]3 years ago
4 0

Answer:

So, 35 degrees is your answer.

Step-by-step explanation:

180 - 100 - 45 = 35 degrees

Hope my answer has helped you!

umka2103 [35]3 years ago
4 0

For this case we have by definition, that the sum of the internal angles of a triangle is 180.

Then, they tell us that two of the angles measure 45 and 100 degrees respectively. If "x" is the missing angle we have:

45 + 100 + x = 180

Clearing the value of "x":

x = 180-45-100\\x = 35

So, the missing angle is 35 degrees

ANswer:

35 degrees

Option B

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Solve the following word problem using two variables. Show each step of your work.
masha68 [24]

Answer:

John is 16 and Maya is 11

Step-by-step explanation:

x=Maya's age

x+5=John's age

x+x+5=27

2x+5=27

     -5   -5

2x=22

/2    /2

x=11

x+5=

11+5= 16

7 0
2 years ago
Put the following equation of a line into slope-intercept form, reducing all fractions.
Reil [10]

Answer:

y = (-1/5)x - 9

Step-by-step explanation:

15y = -3x - 135

Divide both sides by 15

y = (-1/5)x - 9

3 0
3 years ago
Math help will mark brainliest
jasenka [17]

im not sure but its either A Or D

Step-by-step explanation:

because the points are  on that point

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3 years ago
What is the scale factor, perimeter ratio, surface ratio, and the volume ratio?????????????????????????????
tamaranim1 [39]

Answer:

Scale factor = \frac{4}{9}

Perimeter ratio = 4 : 9

Surface area ratio = 16 : 81

Volume ratio = 64 : 729

Step-by-step explanation:

Volume ratio = \frac{\text{volume of small prism}}{\text{Volume of large prism}}

                      = \frac{128}{1458}

                      = \frac{64}{729}

                      = 64 : 729

Scale factor = \sqrt[3]{\frac{\text{volume of small prism}}{\text{Volume of large prism}}}

                    = \sqrt[3]{\frac{64}{729}}

                    = \frac{4}{9}

Perimeter ratio = Scale factor

                         = \frac{4}{9}

                         = 4 : 9

Surface area ratio = (Scale factor)²

                              = (\frac{4}{9})^{2}

                              = \frac{16}{81}

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3 0
3 years ago
An urn contains balls numbered 1 through 20. A ball is chosen, returned to the urn, and a second ball is chosen. What is the pro
stira [4]
<h2>Answer:</h2>

The probability is:

                   \dfrac{1}{400}

<h2>Step-by-step explanation:</h2>

It is given that:

An urn contains balls numbered 1 through 20.

A ball is chosen, returned to the urn, and a second ball is chosen.

This means that this is a case of a replacement.

Hence, one of the event is independent of the other.

Now we know that the probability to get a particular number of ball is:

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( Since, there are total 20 balls and a ball of one particular number is just unique )

i.e. \text{Probability of getting a 8}=\dfrac{1}{20}

Hence, the probability that the first and second balls will be a 8 is:

=\dfrac{1}{20}\times \dfrac{1}{20}\\\\\\=\dfrac{1}{400}

7 0
3 years ago
Read 2 more answers
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