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ryzh [129]
2 years ago
12

Please help meeeeeeeeeeeeeeeeee

Mathematics
2 answers:
masha68 [24]2 years ago
7 0

Answer:

14,800 square yards.

Hope this helps! Please give brainlist!

m_a_m_a [10]2 years ago
3 0

Answer:

The answer is 14,800 square yards.

Step-by-step explanation:

Square Area:bh: 145 x 80 = 11600

225-145=80/2= 40 (the base)

Triangle Area: 1/2 (b) (h): 1/2 (40) (80) = 1600

Since there are 2 riangles multiply 1600 by 2 = 3,200

Add 11600 + 3,200 = 14,800

I'm sorry if I'm wrong. I'm only a 6th grader. Please know I tried my best. Good luck with the rest! Have a great day/night! <3

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The U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belong to unions (BLS website, January 2014). Suppose a s
vitfil [10]

Answer:

There is not enough evidence to support the claim that union membership increased.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 400

p = 11.3% = 0.113

Alpha, α = 0.05

Number of women belonging to union , x = 52

First, we design the null and the alternate hypothesis

H_{0}: p = 0.113\\H_A: p > 0.113

The null hypothesis sates that 11.3% of U.S. workers belong to union and the alternate hypothesis states that there is a increase in union membership.

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{52}{400} = 0.13

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.13-0.113}{\sqrt{\frac{0.113(1-0.113)}{400}}} = 1.073

now, we calculate the p-value from the table.

P-value = 0.141636

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Thus, there is not enough evidence to support the claim that union membership increased.

5 0
3 years ago
Can some one solve this
alex41 [277]

Answer:

J Monica is right

Step-by-step explanation:

Add three to both sides, divide by 4 you get x\geq4

6 0
3 years ago
Read 2 more answers
Factor x2 + xy - 2x - 2y.
ankoles [38]

Answer:

(X-2)(x+y)

Step-by-step explanation:

So we can factor X out, x(x-2) and factor y out y(x-2). Now we can factor out the x-2, so we have (x-2)(x+y)

5 0
3 years ago
What is the value of x in the equation (x + 12) = (x + 14) – 3? –24 –6 -2/3 0
vodka [1.7K]
The answer is o there is no value of x to make the equation true.
8 0
3 years ago
Read 2 more answers
Solve the following equation by combining like terms:<br> x +x +2 +3x- 6 = 31
igor_vitrenko [27]

Answer:

x=7

Step-by-step explanation:

We want to get the variable "x" alone to get our answer. So.

1. combine like terms

x+x+2+3x-6=31

like terms in equation: (left side)

x, x, 3x= 5x       (equation: x+x+3x)

2, -6= -4             (equation: 2-6)

so, this is what the equation would look like with our new answers:

5x-4=31

2. add 4 to both sides

5x-4+4=31+4

(on left side of equation, the -4 and +4 cancel each other out, leaving the 5x alone)

5x=35

3. divide 5 from both sides, to get the "x" alone

5x/5=35/5

so, our answer would be:

x=7

I hope this was helpful :)

5 0
3 years ago
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