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4 years ago

Help me please thank y’all

Mathematics

2 answers:

Xelga [282]4 years ago

8 0

Answer:

60 degrees

Step-by-step explanation:

All the angles in a triangle add up to 180 degrees.

We know two angles, 33 degrees and 87 degrees.

Now we have to find the last one.

So we make an equation to solve this.

33 + 87 + x = 180

120 + x = 180

Subtracting 120 fr0m both sides get us,

120 - 120 + x = 180 -120

x = 60

60 degrees

We can check by adding all three angles by substituting 60 for x,

33 + 87 + 60 = 120 + 60 = 180 degrees

Lana71 [14]4 years ago

6 0

Answer: x=60°

Step-by-step explanation:

The sum of the angles of a triangle is 180°. With this, we can find x°.

33+87+x=180 [combine like terms]

120+x=180 [subtact both sides by 120]

x=60°

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Flying with the wind, a small plane flew 240 mi in 2 h. Against the wind, the plane could fly only 210 mi in the same amount of

Darina [25.2K]

2(p+w)=240

p+w=120

w=120-p, we will use this value for w below...

2(p-w)=210

p-w=105, now use the w from earlier...

p-120+p=105

2p-120=105

2p=225

p=112.5 mph (and wind is 7.5 mph)

6 0

4 years ago

Angle AOD=69°

Evgesh-ka [11]

The value of x where by exterior angles theorem, ∠DCO equals 2·x, 69° equals the sum of ∠DCO and x° is x = 23°

<h3>What is the exterior angles theorem?</h3>

The exterior angles theorem states that the exterior angle of a triangle is equal to the sum of the opposite interior angles.

The given parameters are;

Points on the circle are; ABCD

Straight lines = AOBE and DCE

Segment CO = Segment CE

∠AOD = 69°

∠CEO = x°

∠OCD = ∠ODC base angles of isosceles triangle

69° = ∠x° + ∠ODC exterior angle of a triangle

∠DOC = 180 - 2×∠ODC (Angle sum property of a triangle)

180 - 2×∠ODC + x° + 69° = 180° (Sum of angles on a straight line are supplementary)

x° + 69° - 2×∠ODC = 0

∠ODC = 2·x° (exterior angle of a triangle is equal to the sum of the opposite interior angles)

69° = x° + ∠ODC = x° + 2·x° = 3·x° (substitution property of equality)

69° = 3·x°

x = 69° ÷ 3 = 23°

x = 23°

Learn more about angles in a triangle here:

brainly.com/question/25215131

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2 years ago

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omeli [17]

Answer:

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Step-by-step explanation:

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2 years ago

Select the correct answer.

BigorU [14]

Answer:

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5 0

3 years ago

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If it takes 10 seconds for 10 printers to print out 10 pages of paper, how many seconds will it take 50 printers to print out 50

Fed [463]

Lets use the formula $RWT=J$ to solve this, where,

R is the rate
W is the number of workers/things
T is time
J is number of jobs/things

"If it takes 10 seconds for 10 printers to print out 10 pages of paper" - here -

W is 10 printers, T is 10 seconds, and J is 10 pages. We can write:

$R(10)(10)=10\\R(100)=10\\R=\frac{10}{100}\\R=0.1$

"how many seconds will it take 50 printers to print out 50 pages of paper" - here we use $R=0.1$ (previously found) to figure out T.

$RWT=J\\(0.1)(50)T=50\\5T=50\\T=\frac{50}{5}\\T=10$

So it will take 10 seconds for 50 printers to print 50 pages.

ANSWER: 10 seconds

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3 years ago

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