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Sloan [31]
3 years ago
7

27bc/36cd simplify. i will mark brainliest

Mathematics
1 answer:
AlekseyPX3 years ago
5 0
Both the numerator and denominator have a 9 and a "b" in common, so we can reduce the fraction to:

3c/4d
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In 1994, the General Social Survey included a question that asked its participants if they felt that nuclear power plants were e
Anna71 [15]

Answer:

Value of the test statistic for this problem = -3.74

Step-by-step explanation:

Here

the sample size n = 1263

and the x = 565

So, the p' -value = 565/1263 = 0.4473

As per the test statistics formula, z value will be evaluated

z = (0.4473-p)/sqrt {p(1-p)/n}

Let us say that p = 0.5

Substituting the given value in above equation, we get -

z = (0.4473-0.5)/sqrt {0.5(1-0.5)/1263}

z = -3.74

4 0
3 years ago
Find the value of x.
Triss [41]

Answer:

D

Step-by-step explanation:

The midsegment AC is half the sum of the parallel bases, that is

AC = \frac{DF+EB}{2} , then

x = \frac{13+9}{2} = \frac{22}{2} = 11 → D

6 0
3 years ago
Determine which system below will produce infinitely many solutions. -4x + 6y = 20 4x - 3y = -2 -2x + 4y = 18 4x - 8y = -36 3x -
Vanyuwa [196]
The second:
\left \{ {{-2x+4y=18} \atop {4x-8y=-36}} \right.
<span>The second equation is equal to the first multiplied by -2, giving two coincident straight lines with infinite points in common (solutions)</span>

3 0
3 years ago
3 quick algebra 1 questions for 50 points!
Goshia [24]

#1

  • h(t)=-16t²+58t+2

h(2.5)

  • -16(2.5)²+58(2.5)+2
  • -16(6.25)+145+2
  • 147-100
  • 47ft

After 2.5s the ball was at 47ft

#2

  • g(x)=x²-9

g(0)

  • -9

g(4)

  • 4²-9=16-9=6

g(7)

  • 7²-9
  • 49-9
  • 40

Range

  • {-9,6,40}

#3

  • f(-3)=5
  • f(0)=0
  • f(1)=-3

5 0
2 years ago
Bailey earns $10/hour mowing lawns. They can work from 4 - 8 after school
natka813 [3]
Hours M W F = 4 hours x 3 = 13
Hours S = 8 hours
Total Hours per week = 21 hours

Total made per week = 21 x $10 = $210
5 0
3 years ago
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