All categories

2 years ago

Lesson 4-4 Homework The question is attached below :)

Mathematics

1 answer:

Ronch [10]2 years ago

4 0

Answer:

493.2 · 10⁸

Step-by-step explanation:

1 person = 180 bars

274,000,000 people · 180 bars per person

274,000,000 can be simplified to 274 · 10⁶

274 · 180 = 49320 · 10⁶

Now transferring this to scientific notation by moving the decimal two spaces to the left

493.2 · 10⁶ + 10² The 10² is for the two spaces to the left

493.2 · 10⁸

You might be interested in

What value of q makes the equation true? 18/q=3/5 A.)6 B.)30 C.)25 D.)18

seropon [69]

B because 3 times 6 makes 18, so 5 times six is 30 which is B

6 0

3 years ago

2. Choose the graph that shows the solution of the inequality on the number line

horsena [70]

Answer:

Number line 3 also known as [C]

Step-by-step explanation:

Given that:

c ≤ -1

Knowing that:

≤ = Less than or equal to

Now substitute into the equation:

C less than or equal to -1

Thus, it going left on a number line.

The only number line with left is [A] and [C]

Since ≤ = Less than or equal to -1

then, it including -1

also known as a closed circle means the number is included and an open circle means it is not.

Hence, it closed circle.

Thus, the answer is [C]

Kavinsky

4 0

2 years ago

The elevator in the empire state building goes up to the 103rd floor and descends to -5 for parking. What does 0 represent in th

Inessa05 [86]

0 could possibly represent ground level in this situation.

5 0

3 years ago

What percent of 500 is 50?

mestny [16]

Answer:50/500×100=10%

Therefore, 10% of 500 is 50.

Hope this answer helps you...

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a

AlekseyPX

Answer:

The time that the boys need to beat in order to earn a certificate of recognition from the fitness association is 511.264 seconds.

Step-by-step explanation:

We are given that the time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 40 seconds.

The fitness association wants to recognize the fastest 10% of the boys with certificates of recognition.

Let X = time for this event for boys in secondary school

SO, X ~ Normal( $\mu=460,\sigma^{2} =40^{2}$ )

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

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

where, $\mu$ = mean time = 460 seconds

$\sigma$ = standard deviation = 40 seconds

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

Now, it is given that the fitness association wants to recognize the fastest 10% of the boys with certificates of recognition, which means;

P(X > x) = 0.10 {where x is the required time which boy need to beat}

P( $\frac{X-\mu}{\sigma}$ > $\frac{x-460}{40}$ ) = 0.10