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egoroff_w [7]
4 years ago
14

What Is The Answer To - 3/4 + 4/7 =?

Mathematics
1 answer:
Mrrafil [7]4 years ago
4 0

Answer:

Oof

Step-by-step explanation:

First, change the denominators cuz, math. Then just do the math. Why you asking me?

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1/3
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5 0
3 years ago
13 9/10 divided by 3 1/2
Arlecino [84]

Answer:

3 \frac{13}{44}

Step-by-step explanation:

First let's write our equation

13  \frac{9}{10}  \div 3  \frac{1}{2}

Now let's make them improper fractions

\frac{139}{10}  \div  \frac{7}{2}

Now since we're dividing we with fractions we do the reciprocal and multiply

\frac{139}{10}  \times  \frac{2}{7}

or

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3 years ago
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cricket20 [7]

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8 0
3 years ago
A random sample of 1000 registered voters in Flagstaff found 760 registered voters who support immigration reform. Find a 95% co
dusya [7]

Answer: (0.7335,\ 0.7865)

Step-by-step explanation:

Given : A random sample of 1000 registered voters in Flagstaff found 760 registered voters who support immigration reform.

sample size : n= 1000

sample proportion: \hat{p}=\dfrac{760}{1000}=0.76

Critical value for 95% confidence interval = z_{\alpha/2}=1.96

Confidence interval :

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.76\pm(1.96)\sqrt{\dfrac{0.76(1-0.76)}{1000}}\\\\=0.76\pm0.0264708866493\\\\\approx0.76\pm0.0265\\\\=(0.76-0.0265,\ 0.76+0.0265)=(0.7335,\ 0.7865)

Hence, the  95% confidence interval for the true percent of registered voters in Flagstaff who support immigration reform: (0.7335,\ 0.7865)

6 0
3 years ago
Find the area of an equilateral triangle if a side is 8*sqrt(3) m. Round to the nearest whole number.
gavmur [86]
Hello,

8*√3 is the side.
The height is √((8√3)²-(4√3)²)=√(64*3-16*3)=12

Area of the triangle=8*√3*12/2=48√3≈83
3 0
4 years ago
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