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Darina [25.2K]
3 years ago
11

Multiply (7.7 × 106)(7 × 105). Express the result in scientific notation.

Mathematics
1 answer:
LiRa [457]3 years ago
8 0
Bro you put this on arts
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For every 45 vehicles up past 15 are many vans so how many minivans would pass if there were 60 vehicles
Colt1911 [192]
The case is about proportional relatioship so to slove it you have to do this.
45(V)       ?
____  x  ____
60(V)      15

45*15=675
60*?=60
675 DIVIDE BY 60=11.25
so the answer is 11.25
hope it help you
thank you
:)
7 0
3 years ago
X is a normally Distributed random variable with a standard deviation of 4.00. Find the mean of X when 64.8% of the area lies to
Cerrena [4.2K]

Answer:

7

Step-by-step explanation:

σ = 4 ; μ =?

8.52 to the left of X

.

P(X < 8.52) = 64.8%

P(X < 8.52) = 0.648

Using the Z relation :

(x - μ) / σ

P(Z < (8.52 - μ) / 4)) = 0.648

The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)

Z = 8.52 - μ / 4

0.38 = 8.52 - μ / 4

0.38 * 4 = 8.52 - μ

1.52 = 8.52 - μ

μ = 8.52 - 1.52

μ = 7

5 0
3 years ago
Nico owns 11 instructional piano books. Two are beginner books, six are intermediate books, and three are advanced books. If two
Leona [35]

The probability that he first chooses an advanced book and then chooses a beginner book is 6/121.

<h3>Probability</h3>

Given:

Beginner book=2

Intermediate book=6

Instructional piano books=11

Advanced books=3

Hence:

Probability=(2×3)÷(11×11)

Probability=6/121

Therefore the probability that he first chooses an advanced book and then chooses a beginner book is 6/121.

Learn more about probability here: brainly.com/question/24756209

#SPJ2

7 0
2 years ago
Read 2 more answers
The sum of a number and 4.7 is 8.1.
Sloan [31]

<em>Greetings from Brasil...</em>

Be that unknown number X

Then we can write the following expression:

X + 4.7 = 8.1

<h2>X = 3.4</h2>

5 0
3 years ago
Which of the following graphs shows the preimage P(x)=x^2 and the image I(x)=P(1/3x)?
Ksju [112]

Answer:

The picture with the widest graph in red

Step-by-step explanation:

The graph P(x) is the parent graph for all quadratic functions. It has a vertex of (0,0) and has the following points:

x      f(x)

-2      4

-1       1

0       0

1         1

2       4

The image of l(x) = P(1/3x) changes the points of the function to

x      f(x)

-2/3      4/9

-1/3        1/9

0       0

1/3        1/9

2/3       4/9

This makes the graph much wider. The graph with the widest red graph is the graph.

7 0
3 years ago
Read 2 more answers
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