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Sidana [21]
3 years ago
9

A farmer had some chickens and some cows. She counted 40 total heads and 126 total legs. How many cows did she have?

Mathematics
1 answer:
stellarik [79]3 years ago
7 0
23 cows and 17 chickens
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Which transformations have been performed on the graph of f(x) =<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%7D" id="Tex
telo118 [61]

Answer:

The correct answers are B, E and F

Step-by-step explanation:

We can find the answer B by noticing the 1/4 put in front of the cube root sign. this 1/4 shirks the value of every y value by 1/4, which in turn makes it closer to the x axis.

We can find answer E by looking at the 3 inside of the cube root symbol. When we add a number underneath the cube root sign, it always moves the value to the left that many spaces.

Finally, we can find F by looking at the 6 at the end. Any number added to the end of an equation as a constant moves the graph up by that many spaces.

7 0
4 years ago
A random draw is being designed for 210 participants. A single winner is to be chosen, and all the participants must have an equ
Over [174]

Answer: The correct number of balls is (b) 4.

Step-by-step explanation:  Given that a single winner is to be chosen in a random draw designed for 210 participants. Also, there is an equal probability of winning for each participant.

We are using 10 balls, numbered through 0 to 9. We are to find the number of balls which needs to be picked up, regardless of order, so that each of the 210 participants can be assigned a unique set of numbers.

Let 'r' represents the number of balls to be picked up.

Since we are choosing from 10 balls, so we must have

^{10}C_r=210.

The value of 'r' can be any one of 0, 1, 2, . . , 10.

Now,

if r = 1, then

^{10}C_1=\dfrac{10!}{1!(10-1)!}=\dfrac{10!}{1!9!}=\dfrac{10\times 9!}{1\times 9!}=10

If r = 2, then

^{10}C_2=\dfrac{10!}{2!(10-2)!}=\dfrac{10!}{2!8!}=\dfrac{10\times 9\times 8!}{2\times 1\times 8!}=45

If r = 3, then

^{10}C_3=\dfrac{10!}{3!(10-3)!}=\dfrac{10!}{3!7!}=\dfrac{10\times 9\times 8\times 7!}{3\times 2\times 1\times 7!}=120

If r = 4, then

^{10}C_4=\dfrac{10!}{4!(10-4)!}=\dfrac{10!}{4!6!}=\dfrac{10\times 9\times 8\times\times 7\times 6!}{4\times 3\times 2\times 1\times 6!}=210.

Therefore, we need to pick 4 balls so that each participant can be assigned a unique set of numbers.

Thus, (b) is the correct option.

4 0
4 years ago
Read 2 more answers
Part1: Find the slope of the line that passes through the following points. (6 points;2 points each) A (10,4) and B (-2,-5) C (-
bonufazy [111]

Answer:

d

Step-by-step explanation:

hope it helps

7 0
4 years ago
Patriciodeposits $500 in the same account that pays a 1.5% simple interest he does not withdraw any money from the account any m
olga nikolaevna [1]

Answer: $537.5

Step-by-step explanation:

$500 at 1.5% for 5 years

p x  r x t = i

500 x 0.015 x 5= 37.5

37.5+500=537.5

7 0
3 years ago
Gerry and his family have moved into a new home with a great backyard. In the yard, they plan to have a garden, a lawn, and a pa
Alina [70]

3 centimetres = 1 yard

Answer 1:

30 cm

Answer 2:

45 cm

Answer 3:

24 cm

Answer 4:

12 cm

Pls make my answer as brainliest)))

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