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2 years ago

Can someone help me with question (a) and (b)? Thanks! :)

Mathematics

1 answer:

attashe74 [19]2 years ago

5 0

Answer:

A- There is a right angle.

B- 31.4

Step-by-step explanation:

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Here are the two arguments you will be debating: Argument A: There is a need for students to understand and be able to construct

igomit [66]

The appropriate response is B. The contend that there is no requirement for understudies to utilize a compass and straightedge, and every single geometric development ought to be finished utilizing a drawing program is the wrong explanation since the power to control drawing programs is just open in a few spots. Not everyone would have the capacity to learn geometry in light of the fact that not everyone can have power. Everyone on the planet would not have a similar opportunity to learn geometry if just drawing programs had the information that we have today.

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2 years ago

Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they

inysia [295]

You have two unknown rates, so we need to develop two equations to solve for these unknowns (based on the information given on the problem statement):

5x + 10y = 725
x + y = 100

By substitution, we get:

5x + 10(100 - x) = 725
5x + 1000 - 10x = 725
-5x = 725 - 1000
-5x = -275
x = -275/-5 = 55

100 - 55 = 45

Thus:
The mechanic who worked for 5 hours charged his time at $55/hr, and the mechanic who worked for 10 hours charged his time at $45/hr.

To verify, plug and chug the results back into the original equations:

5(55) + 10(45) = 725
275 + 450 = 725
725 = 725 [OK]

55 + 45 = 100 [OK]

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2 years ago

How to find unknown side

Elan Coil [88]

Answer:

C = 10

Step-by-step explanation:

Find the last side of the triangle using the Pythagorean theorem.

$a^{2} +b^{2} =c^{2}$

You have a and b already, a = 6, b = 8

$6^{2} +8^{2} =c^{2} \\\\$

solve this to get

$64 + 36 = \sqrt{100}$

C = 10

Apply the same to the other 2 triangles. C is your longest side!

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2 years ago

What's the greatest common factor of: 2*2*2*2*3*3*3*5*2*2*3*3*3*7

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3 years ago

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What the factors of 40 with a sum of -22? *

Andru [333]

Answer:

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Step-by-step explanation:

2. Given the points A, B, C, D, calculate:

(a) the angle B of the triangle ABC

(b) the area of the triangle ABC

(d) the height AH of the triangle ABC

(e) the volume of tetrahedron ABCD

(f) the point E so that ABCE is a parallelogram.

A(-1, 2, -3), B(4, -1, 0), C(2, 1, -2), D( 3,4,5)

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2 years ago

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