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Zolol [24]
3 years ago
8

What is the first step to solve this equation:

Mathematics
2 answers:
Elina [12.6K]3 years ago
4 0
The correct answer is a
timama [110]3 years ago
3 0

Answer:

How are you doing today

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A study selected independent random samples of 50 dogs and 60 cats and found that 38 of the dogs and 15 of the cats could be tra
pickupchik [31]

Answer:

Sorry for answering this late, only just found this.

Answers are

a. We have two independent random samples.

c. The 10% condition is met.

f. The expected number of successes and failures for both samples are 24, 26, 29, 31.

Step-by-step explanation:

EDGE 2021

Once I finish the assignment I'll be making a quizlet with the answers.

7 0
3 years ago
a large painting has a length of 18 inches and width of 12 inches. If each dimension is reduced by x inches to make the ratio of
KiRa [710]

Answer:

The value of x = 3.

Step-by-step explanation:

The ratio between length and width is given by:

\frac{L}{W}=\frac{5}{3}

Where:

  • L represents the new length
  • W represents the new width

Now, we know that each dimension is reduced by x inches, it means:

L=18-x

W=12-x

Then, we will have:

\frac{18-x}{12-x}=\frac{5}{3}

Finally, we just need to solve it for x.  

3(18-x)=5(12-x)

5x-3x=60-54

2x=6

x=3

<u>Therefore, the value of </u><u>x = 3.</u>

I hope it helps you!

3 0
3 years ago
Question 1: Identify the zeros of the function f(x) = 4x2 − 8x − 1 using the Quadratic Formula. Answers: -1/2 + sqaureroot 5, 1/
Lelechka [254]

Answer:

1.  1/2 +/-√5

2.  1 +/-  i √6/2.

Step-by-step explanation:

1.  f(x) = 4x^2 - 8x - 1

x = [-(-8) +/-√((-8)^2 - 4*4*-1)] / (2*4)

x =[ 8 +/- √80] / 8

= 1 +/- 4√5/8

= 1 +/- √5/2

= 1/2 +/-√5

2. By a similar method the zeros of the the second equation are:

x = [-(-4) +/- √((-4)^2 - 4*2*5)]  / 4

= 4 +/- √(16 - 40) / 4

= 1 +/- √(-24)/4

= 1 +/- i  √6 * 2 / 4

= 1 +/-  i √6/2.

3 0
4 years ago
Triangle DEF has coordinates
Sergeeva-Olga [200]

Answer:

d) (x,y)right arrow(x+4,y-2)

Step-by-step explanation:

took the test

6 0
4 years ago
Read 2 more answers
The primers you used in lab amplified 145 base pairs that were adjacent, but not included in the repeat. If you used a different
Elanso [62]

If your PCR product size was 172 and there were 130 base pairs next to a 14 base pair repeat, then there are 3 repeats.

Given that the newly used primer amplifies 130 base pairs that are near

(a) 14 base pair and

(b) the size of the pcr product is 172

Size = (number of base pairs * number of repetitions) + Initial/Primer Amplicon Value

172 = (14 * x) + 130

172 -130 = 14x

42 = 14x

3 = x

Therefore, we can say that the PCR product has 3 repeats.

Learn more about PCR here

brainly.com/question/14050958

#SPJ4

3 0
1 year ago
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