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salantis [7]
3 years ago
5

Given: 4x - 7 = 2x + 9 Prove: x = 9 What is the missing reason? 1. 4x - 7 = 2x + 9 ------------- 1. Given 2. 2x - 7 = 9 --------

----------- 2. ????? 3. 2x = 18 --------------------- 3. Addition Property of Equality 4. x = 9 ------------------------ 4. Division Property of Equality A) Multiplication property of equality B) Subtraction property of equality C) Transitive property of equality D) Substitution property of equality
Mathematics
1 answer:
sdas [7]3 years ago
4 0
Lol have fun on thos
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HELP IN MATH PLS, THANK YOU
tangare [24]

Answer:

-28x^4y^6

Step-by-step explanation:

-4y^2 x 7x^3+1y4

-4 x 7x^4y^2+4

-4 x x7x^4y6

-28x^4y^6

need more points stingy

7 0
3 years ago
Question:
Tems11 [23]
A) 1/5 + 5/9

find common denominator:
9*5 = 45

pillow case: 1/5 = 9/45
table cloth: 5/9 = 25/45

9/45 + 25/45 = 34/45 was used 

B. using 45 as the denominator the full piece of cloth would be 45/45
       fraction left over = 45/45 - 34/45 = 11/45 left

C. from A the pillow case uses 9/45, they have 11/45 left, because 9 is less than 11, they have enough to make a pillow case
8 0
3 years ago
Suppose a sample of 80 with a sample proportion of 0.58 is taken from a
Anvisha [2.4K]

Answer:

99.7% confidence interval is [0.4162,0.7437]

Step-by-step explanation:

The formula for a confidence interval for a population proportion is CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} } where \hat{p} is the sample proportion, n is the sample size, and z^* is the critical score for the desired confidence level.

We are given a sample size of n=80 and a sample proportion of \hat{p}=0.58. Our critical score for a 99.7% confidence level would be z^*=normalcdf(0.9985,0,1)=2.9677

Therefore, the approximate 99.7% confidence interval for the population parameter is CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }=0.58\pm 2.9677\sqrt{\frac{0.58(1-0.58)}{80} }=[0.4162,0.7438]

So we are 99.7% confident that the true population proportion is contained within the interval [0.4162,0.7437]

3 0
3 years ago
2 + 3 = 8<br><br>3 + 7 = 27<br><br>4 + 5 = 32<br><br>5 + 8 = 60<br><br>6 + 7 = 72<br><br>7 + 8 = ???
stepladder [879]
2+3=8
3+7=27
4+5=32
5+8=60
6+7=72
7+8=Lamborghini
5 0
3 years ago
48 – (−12) = A) -60 B) -36 C) 36 D) 60
34kurt
48 - (-12)

48 + 12    simplify brackets. (because two negatives equals a positive)

60 << answer

hope this helps, God bless!
6 0
4 years ago
Read 2 more answers
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