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2 years ago

Can someone please help me i dont understand this at all and no one in my family knows this stuff

Mathematics

2 answers:

Artist 52 [7]2 years ago

3 0

Answer: -20 1/12

Step-by-step explanation:

-8 + -11 = -19

-3/4 + -1/3 = -1 and 1/12

so -19 + -1 and 1/12 = -20 and 1/12

Arte-miy333 [17]2 years ago

3 0

Answer: The answer is -20 1/12.

Step-by-step explanation:

The equation is: -8 3/4 + (-11 1/3).

First you have to find the common denominator of both fractions by:

3/4 × 3/3 = 9/12

1/3 × 4/4 = 4/12

Then you have to plug those numbers into the equation and solve:

-8 9/12 + (-11 4/12)

= -19 13/12

= -20 1/12

I hope I helped and have a great day! ^-^

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For a standard normal distribution (µ=0, σ=1), the area under the curve less than 1.25 is 0.894. What is the approximate percent

Nesterboy [21]

Answer:

10.6%

Step-by-step explanation:

Normal curves are symmetrical. That means that on a standard normal distribution, the area less than -1.25 is the same as the area greater than +1.25. The total area under the curve is 1, so:

P = 1 - 0.894

P = 0.106

Approximately 10.6% of the area under the curve lies below -1.25.

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3 years ago

A school needs 25 butterfly breeding kits, and places an order with an educational company. They already have 7 kits, and they r

Nina [5.8K]

25 - 7 = 18 | 18 - 3 = 15 The school received 15 kits in the box. The reason why is because there are 3 kits that they haven't received yet. Then there were 7 that they already had, so that means there are 10 kits that wont be included in the box.

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3 years ago

Read 2 more answers

What are the first three terms of the sequence modeled by the recursive function an=1/2an-1 when a1=1?

loris [4]

Answer:

Option A is correct that is $1,\frac{1}{2},\frac{1}{4}$

Step-by-step explanation:

We have been given a formula $a_n=\frac{1}{2}\cdot a_n-1$

$a_1=1$

We will put values of n in $a_n=\frac{1}{2}\cdot a_n-1$

when n=2 we get

$a_2=\frac{1}{2}\cdot a_2-1$

$\Rightarrow a_2=\frac{1}{2}\cdot a_1$

$\Rightarrow a_2=\frac{1}{2}\cdot 1$

$\Rightarrow a_2=\frac{1}{2}$

when n=3

$a_3=\frac{1}{2}\cdot a_2$

$\Rightarrow a_3=\frac{1}{2}\cdot \frac{1}{2}$

$\Rightarrow a_3=\frac{1}{4}$

Therefore, Option A is correct that is $1,\frac{1}{2},\frac{1}{4}$

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3 years ago

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Can 12/15 be simplify

Semmy [17]

Yes 12/15 can be simplified.

To simplify 12/15 find the greatest common multiple. The greatest common multiple of 12/15 is 3. Now divide 12/15 by 3.

12 ÷ 3 = 4
15 ÷ 3 = 5

4/5 is the simplified version of 12/15

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3 years ago

Vincent is watching a movie that last one hour and 37 minutes.he has watched 52 minutes so far how many minutes are left in the

Neporo4naja [7]

<h3>given:</h3>

lasts= 1 hour 37 minutes

watched= 52 mins

how many minutes left in the movie.

<h3>solution:</h3>

to find the time left just find the difference.

$52 - 37$