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sweet-ann [11.9K]
3 years ago
13

Write an equation in slope-intercept form for the line with y -intercept 3 and slope 2/5.

Mathematics
1 answer:
IceJOKER [234]3 years ago
8 0
Answer: y = 2/5x + 3
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What’s the answer to this?
inna [77]

Since the triangle is equilateral, all its angles are equal to 60°

AO is the bisector⇒∠OAD = 30°

AO is the hypotenuse, ∠OAD = 30°⇒

OD=5*2=10m

By the Pythagorean theorem

10^2=AD^2+5^2\\AD=\sqrt{100-25} \\AD=\sqrt{75}

AC=AD+DC=2\sqrt{75}=10\sqrt{3}

S=\frac{a^2\sqrt{3} }{4}

S=\frac{(10\sqrt{3})^2\sqrt{3}  }{4} =\frac{300\sqrt{3} }{4} =75\sqrt{3} m^2

Answer: A) S=75\sqrt{3}m²

P.S. Hello from Russia and sorry for my bad english :^)

3 0
3 years ago
During the past six months, 73.2 percent of US households purchased sugar. Assume that these expenditures are approximately norm
Mrrafil [7]

Answer:

75.94% of the households spent between $5.00 and $9.00 on sugar.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 8.22, \sigma = 1.10

What proportion of the households spent between $5.00 and $9.00 on sugar?

This is the pvalue of Z when X = 9 subtracted by the pvalue of Z when X = 5. So

X = 9

Z = \frac{X - \mu}{\sigma}

Z = \frac{9 - 8.22}{1.10}

Z = 0.71

Z = 0.71 has a pvalue of 0.7611

X = 5

Z = \frac{X - \mu}{\sigma}

Z = \frac{5 - 8.22}{1.10}

Z = -2.93

Z = -2.93 has a pvalue of 0.0017.

So 0.7611 - 0.0017 = 0.7594 = 75.94% of the households spent between $5.00 and $9.00 on sugar.

3 0
4 years ago
A car can drive 476 miles on 14 gallon
Degger [83]
What is the question?
8 0
3 years ago
Plssss help 20 points plssa<br> If K Mis the perpendicular bisector of JL, find x.<br> Plsss
Viefleur [7K]

Answer:

x= 7

Step-by-step explanation:

4x+9 =11x-61

9 = 7x - 61

70 = 7x

x = 7

8 0
3 years ago
The circumference of the hub cap of a tire is 82.58 centimeters.
Aleksandr-060686 [28]

where is the rest of the question? what do I have to do?

3 0
3 years ago
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