2 years ago

What is the slope of (-4,1) and (-1,3)

Mathematics

1 answer:

SCORPION-xisa [38]2 years ago

3 0

Answer:

slope is 2÷3 of giving line points

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A total of 70 tickets were sold for a concert and earn the organizers $804. If the cost of each ticket is either $10 or $12, how

crimeas [40]

Answer:

52 tickets cost $10 and 18 tickets cost $12

Step-by-step explanation:

10x+12y=804. (1)

x+y=70. (2)

From (2)

x=70-y

Substitute x=70-y into (1)

10x+12y=804

10(70-y)+12y=804

700-10y+12y=804

700+2y=804

2y=804-700

2y=104

y=104/2

y=52

Recall

x+y=70

x+52=70

x=70-52

x=18

52 tickets cost $10 and 18 tickets cost $12

5 0

3 years ago

M is the incenter of triangle ABC. Find the lengths of MD and DC. (Look at pic)

Deffense [45]

Answer:

Part 1) $MD=9\ units$

Part 2) $DC=12\ units$

Step-by-step explanation:

Step 1

Find the length of MD

we know that

The incenter is the intersection of the angle bisectors of the three vertices of the triangle. Is the point forming the origin of a circle inscribed inside the triangle

In this problem

$MD=ME=MF$ ------> is the radius of a circle inscribed inside the triangle

we have that

$MF=9\ units$

therefore

$ME=9\ units$

$MD=9\ units$

Step 2

Find the length of DC

we know that

In the right triangle MDC

Applying the Pythagoras theorem

$MC^{2} =MD^{2}+DC^{2}$

we have

$MD=9\ units$

$MC=15\ units$

substitute

$15^{2} =9^{2}+DC^{2}$

$DC^{2}=225-81$

$DC=\sqrt{144}\ units$

$DC=12\ units$

6 0

3 years ago

Which number is prime? A. 21 B. 23 C. 25 D. 27

IceJOKER [234]

B. 23

Hope this helps!!!!!!

5 0

3 years ago

Read 2 more answers

What is the quotient of 7^-1/7^-2? 1/343 1/7 7 49

vazorg [7]

Answer:

7^-1/7^-2

7^(-1+2)=7^1=7

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2 years ago

UT bisects WV. WV = ? A. SV B. 2(SV) C. UT D. none of the above

ValentinkaMS [17]

2(sv) is the answer for the question

4 0

3 years ago