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Natasha2012 [34]
2 years ago
13

Help plssssss!!!!!!!

Mathematics
1 answer:
In-s [12.5K]2 years ago
7 0
For the first question asking about the slope 3/4 and y intercept -2 would be (y=0.75x-2) because 3/4=0.75 and the y intercept -2 is b and you’re just placing it into the formula y=Mx+b m=slope b=y intercept.
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Which is NOT a valid method of proving triangles similar?<br> 1)AA<br> 2)SSS<br> 3)ASA<br> 4)SAS
pickupchik [31]

Answer:

1

Step-by-step explanation:

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3 years ago
HeLlO I nEED aN ANsSWER aSap
nignag [31]
What are the answer choices
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2 years ago
The sum of the areas of two circles is 8pie square meters. Find the length of a radius of each circle ifone of them is twice as
NeX [460]
Nice

area=pir^2
the areas are
pir^2+pi(2r)^2
they add to 8pi

8pi=pir^2+pi(2r)^2
undistribute pi
8pi=pi(r^2+(2r)^2)
divide both sides by pi
8=r^2+(2r)^2
expand
8=r^2+4r^2
add
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divide by 5
8/5=r^2
sqrt both sides
√(8/5)=r
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radius=(4√10)/5
5 0
3 years ago
Mr. Harrow has eight boys and six girls in his Honors Pre-calculus class. If he randomly chooses two students, one at a time, wh
Sergeu [11.5K]

Answer: 15/91 which is choice B

=================================================================

There are two methods to find this answer.

Method 1) We have 6 girls and 8+6 = 14 students. The probability of picking a girl is 6/14 = 3/7. After the first girl is chosen, we have 5 girls left out of 14-1 = 13 students overall. The probability of picking another girl (assuming the first selection was a girl) is 5/13. Multiply these probabilities: (3/7)*(5/13) = (3*5)/(7*13) = 15/91

--------------------

Method 2) We can use the nCr combination formula. Order does not matter.

We have nCr = 6 C 2 = 15 ways to pick 2 girls. See the attached image below for the steps (figure 1)

Out of nCr = 14 C 2 = 91 ways to pick 2 students. See the attached image below for the steps (figure 2)

So that's another way to get the answer 15/91.

5 0
3 years ago
Read 2 more answers
I need help plzzzzz help me it s my homework
Genrish500 [490]

Answer:

fddjjfhfufifjffjjfrzurhdudifudjdddjddh

4 0
3 years ago
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