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babymother [125]
3 years ago
12

If BC=6.7, CD=6.2, and AD=13.3, find AB to the nearest tenth

Mathematics
2 answers:
pashok25 [27]3 years ago
4 0

Answer:

14.4

Step-by-step explanation:

AB / BC = AD/CD

AB/6.7 = 13.3 / 6.2

AB = 13.3 * 6.7 / 6.2

AB = 14.4

GaryK [48]3 years ago
3 0

Answer:

The answer is 14.4 units.(option A)

Step-by-step explanation:

Angles BAC and CAD are equal.

We can solve this by using the proportional relation.

\frac{AB}{BC} =\frac{AD}{CD}

Let AB be = x

So, \frac{x}{BC} =\frac{AD}{CD}

\frac{x}{6.7} =\frac{13.3}{6.2}

\frac{x}{6.7} =2.145

x=6.7\times2.145 = 14.37 units

And rounding to nearest tenth, we get 14.4 units.

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60:2\\
30:2\\15:3\\5:5\\\\
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4 0
3 years ago
Read 2 more answers
A particular fruit's weights are normally distributed, with a mean of 733 grams and a standard deviation of 9 grams. The heavies
RoseWind [281]

Answer:

The heaviest 5% of fruits weigh more than 747.81 grams.

Step-by-step explanation:

We are given that a particular fruit's weights are normally distributed, with a mean of 733 grams and a standard deviation of 9 grams.

Let X = <u><em>weights of the fruits</em></u>

The z-score probability distribution for the normal distribution is given by;

                              Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean weight = 733 grams

            \sigma = standard deviation = 9 grams

Now, we have to find that heaviest 5% of fruits weigh more than how many grams, that means;

                    P(X > x) = 0.05       {where x is the required weight}

                    P( \frac{X-\mu}{\sigma} > \frac{x-733}{9} ) = 0.05

                    P(Z > \frac{x-733}{9} ) = 0.05

In the z table the critical value of z that represents the top 5% of the area is given as 1.645, that means;

                               \frac{x-733}{9}=1.645

                              {x-733}}=1.645\times 9

                              x = 733 + 14.81

                              x = 747.81 grams

Hence, the heaviest 5% of fruits weigh more than 747.81 grams.

8 0
2 years ago
4. These two triangles are scaled copies of one another. The area of the smaller triangle
a_sh-v [17]
Is there picture of the triangles?
3 0
3 years ago
Read 2 more answers
1 point
SashulF [63]

Answer:

The length of the slide is 10 feet.

Step-by-step explanation:

To find the length of the slide you have to use the formula:

a^2 + b^2 = c^2 (^2 means squared)

In this case:

a= 6 and b=8 c= unknown

6 squared (6 times 6) is 36

8 squared (8 times 8) is 64

Add these two numbers to get:

36+64=100

6^2+8^2=100

However, the length of the slide in not 100 feet. In order to find the correct length you must find the square root of 100. Which is 10.

What number times itself equals 100? 10.

The length of the slide in 10 feet.

5 0
2 years ago
Hi My question is what is 12% of 21
vfiekz [6]

Answer:

2.52

Step-by-step explanation:

21*.12=

2.52

5 0
3 years ago
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