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2 years ago

Which types of reasons are not valid in a mathematical proof?

Mathematics

2 answers:

Anni [7]2 years ago

6 0

Yeah definetly A i agree

bulgar [2K]2 years ago

5 0

It's definitely A, gotta be.

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What two formulas are necessary to find the area of a segment of a circle?

Andrew [12]

Answer:

Step-by-step explanation:

Area of a Segment in Radians A = (½) × r2 (θ – Sin θ)

Area of a Segment in Degrees A = (½) × r 2 × [(π/180) θ – sin θ]

3 0

2 years ago

Rochelle can run 800 meters in 5 minut

Semmy [17]

To find how much she can run in one minute we’re going to divide 800 by 5, to which we get 160.

She runs 160 meters in one minute.

We want to know how many meters she can run in 9 minutes.

160 * 9 = 1,440

She can run 1,440 meters in 9 minutes.

8 0

3 years ago

I have just one question, could someone please answer it?? (see linked file)

Annette [7]

The solution is x=1 and y=-2

Further explanation:

Given equations are:

$\frac{7}{2}x-\frac{1}{2}y=\frac{9}{2}\\3x-y=5$

Multiplying equation no. 1 with 2 will give us:

$7x-y=9$ Eqn 3

From equation no 2:

$3x-y=5\\-y=5-3x\\y=3x-5$

Putting the value of y in eqn 3

$7x-(3x-5)=9\\7x-3x+5=9\\4x=9-5\\4x=4\\\frac{4x}{4}=\frac{4}{4}\\x=1\\Putting\ x=1\ in\ equation\ 2\\3(1)-y=5\\3-y=5\\-y=5-3\\-y=2\\y=-2\\$

The solution is x=1 and y=-2

Keywords: Linear equations, Solution set

Learn more about linear equations at:

#LearnwithBrainly

8 0

3 years ago

Circle the function types that have an absolute maximum or minimum. Choose all that apply.

Artist 52 [7]

A
B
E
Are the answers
Please mark me as the brainliest

6 0

2 years ago

While on vacation at the beach, Eleanor drew the figure shown.In Eleanor’s drawing, the measure of ∠FMD is 15°, and the measure

bagirrra123 [75]

Answer:

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6 0

2 years ago

Read 2 more answers