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3 years ago

What is the product? −4 × ( −2 2/5)

Mathematics

1 answer:

elixir [45]3 years ago

5 0

Answer:

9.6

Step-by-step explanation:

Hope this help : ) . Bye.

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100 POINTS

dedylja [7]

Y= 2x-3
the slope of the line is 2, and b, the y-intercept, is -3

5 0

3 years ago

Read 2 more answers

Is 1/4 less than 1/10

vaieri [72.5K]

1/4 is equal to 0.25

1/10 is equal to 0.10

so no, 1/4 is not less than 1/10

5 0

3 years ago

Read 2 more answers

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a me

zimovet [89]

Answer:

Option D) $275

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $235

Standard Deviation, σ = $20

We are given that the distribution of amount of money spent by students is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.975

$P( X < x) = P( z < \displaystyle\frac{x - 235}{20})=0.975$

Calculation the value from standard normal z table, we have,

$P( z < 1.960) = 0.975$

$\displaystyle\frac{x - 235}{20} = 1.960\\x =274.2 \approx 275$

Approximately 97.5% of the students spent below $275 on textbook.

7 0

3 years ago

Sam received a 15 percent tip for delivering pizzas. If the cost of the pizzas was $247.62, what was the total amount he collect

saveliy_v [14]

247.62 x 0.15 = 37.143

round to $37.14

I hope that helped :)

4 0

4 years ago

Given two terms in artimetic sequence find the common difference, the 52 term, and the explicit formula. A15=139 and A30=259

quester [9]

139, 149, 159, 169, 179, 189, 199, 209, 219, 229, 239, 249, 259.

The common difference is 13.

Let n = 52

Let d = common difference

a_52 = 139 + (52 - 1)(13)

a_52 = 139 + (51)(13)

a_52 = 139 + 663

a_52 = 802

4 0

3 years ago