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3 years ago

13

can someone help me out in this, ill give brainliest if correct, you can answer by doing it in a paper and taking a picture of i

t or just find out another way

2 answers:

Nastasia [14]3 years ago

8 0

Answer to the observation is “ i noticed they’re all congruent “ and the rest are “ congruent “ for each line .

Nezavi [6.7K]3 years ago

3 0

Answer:

Answering so you can give other person branliest

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In how many ways can a member of a hiring committee select 3 of 12 job applicants for further consideration?

Andrew [12]

Answer: 220

Step-by-step explanation:

When we wanto to create a group of K elements for a set of N elements (where the order of the K elements does not matter, so we do not considerate the permutations of the K elements), the number of possible combinations is:

$C = \frac{N!}{(N - K)!*K!}$

Here N = 12 and K = 3

$C = \frac{12!}{9!*3!} = \frac{12*11*10}{3*2} = 220$

So there are 220 possible combinations

3 0

3 years ago

BRAINLIEST + POINTS ! Can someone help/explain to me why I got this wrong and solve it!

Margarita [4]

Standard deviation is the square root of the variance.

To find the variance from the standard deviation, raise it to the 2nd power:

Standard deviation = 4

Variance = 4^2 = 4x4 = 16.

4 0

3 years ago

Write an equation for a circle with a diameter that has endpoints at (7, –4) and (1, –10). Round to the nearest tenth if necessa

Black_prince [1.1K]

The standard form for the equation of a circle is :

(x−h)^2+(y−k)^2=r2 ----------- EQ(1)
where handk are the x and y coordinates of the center of the circle and r is the radius.
The center of the circle is the midpoint of the diameter.

So the midpoint of the diameter with endpoints at (7,-4)and(1,-10) is :

((7+(1))/2,(-4+(-10))/2)=(4,-7)

So the point (4,-7) is the center of the circle.

Now, use the distance formula to find the radius of the circle:

r^2=(7−(4))^2+(-4−(-7))^2=9+9=18

⇒r=√18

Subtituting h=4, k=-7 and r=√18 into EQ(1) gives :

(x-4)^2+(y+7)^2=18

7 0

3 years ago

Twice x plus 5 is the same as -12

Anastasy [175]

Answer:

Step-by-step explanation:

2x+5=-12

2x=-17

x=-8.5

8 0

3 years ago

Read 2 more answers

14. Ms. Brooks cell phone plan charges $27.00 a month for her phone. She is charged $0.15 per text she sends. She sends 78 texts

Licemer1 [7]

Answer:

$27.00 + 0.15t =

Step-by-step explanation:

8 0

3 years ago