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2 years ago

Geometry: complete this proof, ASAP!!!!!!!!!!!!!!!! It’s urgent

Mathematics

1 answer:

scoray [572]2 years ago

7 0

Answer:

1. AC is perpendicular to BD

1. Given

2. ACB is a right angle

2. Definition of perpendicular lines

3. Triangle ACB is a right triangle

3. Definition of right triangles

4. Angles 1 and 3 are complementary

4. Interior angles of a triangle add up to 180 degrees (Triangle Interior Angle Sum Theorem), and m<ACB = 90 degrees (definition of right angles), so m<1 + m<3 = 90 degrees (subtraction property of equality). By the definition of complementary angles, angles 1 and 3 are complementary.

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Please help! 70+23x-5+110+14x=360 (please show step bc I need to turn in work-paper) Thank you!

daser333 [38]

x = 5

explanation

70 + 23x - 5 + 110 + 14x = 360

first you group the like terms

23x + 14x + 70 - 5 + 110 = 360

then combine the like terms

23x + 14x 70 - 5 + 110

37x + 175 = 360

subtract 175 from both sides

175 - 175 = 0 360 - 175 = 185

to get

37x = 185

divide both sides by 37

37x/37 = 0 185/37= 5

which gives you

x = 5

3 0

3 years ago

How do I determin the slop of a line on a graph

aksik [14]

Slope = mx+b
or
x2-x1/y2-y21

7 0

3 years ago

Mr. Shamir employs two part-time typists, Inna and Jim, for his typing needs. Inna charges $15 an hour and can type 6 pages an h

coldgirl [10]

Answer:

The minimum cost would be 480$ when Inna works for 8 hours and Jim works for 20 hours.

Step-by-step explanation:

We are given the following information in the question:

Charges for 1 hour for Inna = $15

Number of pages typed by Inna in 1 hour = 6

Charges for 1 hour for Jim = $18

Number of pages typed by Jim in 1 hour = 8

Let x be the number of hours Inna work and let y be the number of hours Jim work.

Total cost = $15x + 18y$

We have to minimize this cost.

Then, we can write the following inequalities:

$6x + 8y \geq 208\\x \geq 8\\y \geq 8\\$

The corner points as evaluated from graph are: (8,20) and (24,8)

C(8,20) = 480$

C(24,8) = 504$

Hence, the minimum cost would be 480$ when Inna works for 8 hours and Jim works for 20 hours.

The attached image shows the graph.

3 0

3 years ago

Can you help me with5 1/4 × 3 7/8

Sholpan [36]

In decimal form the answer is 20.34375

4 0

4 years ago

Read 2 more answers

write an equation to solve and find the answer to the following rate problem. a garden store sells six plants per hour how many

Virty [35]

Let x represent the number of plants that they will sell in five hours

We were told that the garden store sells six plants per hour. This means that

6 plants = 1 hour

then,

x plants = 5 hours

By cross multiplying, it becomes

x * 1 = 6 * 5

x = 30

They will sell 30 plants in 5 hoursx

4 0

1 year ago