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alukav5142 [94]
3 years ago
15

There are 42. Children in the classroom each student will get 28 pictures and 46 erasers how many pictures with the teacher had

to give out
Mathematics
2 answers:
Stella [2.4K]3 years ago
7 0

42 times 28 = 1176

i'm 90% sure it's right please tell me if it's not

LUCKY_DIMON [66]3 years ago
4 0
The teacher have to give out 1,176
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Nancy has 100 candy bars. She ate 47 of them in one day. Then she gave 12 of them to her friend David . How much does she have n
Pavel [41]

Answer:

41 Candy Bars

Step-by-step explanation:

She first has 100 candy bars. If she ate 47, she will have 53. If she gives away 12 after, she would have 41.

4 0
3 years ago
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URGENT<br>please find the mean and standard deviation too​ (number 6)
adell [148]

Answer:To calculate the standard deviation of those numbers:

1.Work out the Mean (the simple average of the numbers)

2.Then for each number: subtract the Mean and square the result.

3.Then work out the mean of those squared differences.

4.Take the square root of that and we are done!

Step-by-step explanation:

5 0
3 years ago
When factoring x2 – 3xy + 2y2 by grouping the first step can be:
blagie [28]

Answer:

x^2 – 3xy + 2y^2

Step-by-step explanation:

Factor the following:

x^2 - 3 x y + 2 y^2

Hint: | Factor the quadratic x^2 - 3 x y + 2 y^2.

The factors of 2 that sum to -3 are -1 and -2. So, x^2 - 3 x y + 2 y^2 = (x - 1 y) (x - 2 y):

Answer:  (x - y) (x - 2 y)

8 0
3 years ago
Evaluate 2(N + 3) if n = 5 show your work
algol [13]

ANSWER:

N = 16

STEP BY STEP EXPLANATION:

2(5+3)

2(5+3)

n=16

6 0
3 years ago
Given that x = -2 - 3i and y = 4 + 2i , Match The Expressions.
shtirl [24]

Answer:

3y-2x=16+12i

-3x \cdot y=6+48i

x \cdot 2y=-4-32i

x-y=-6-5i

Step-by-step explanation:

Given:

x=-2-3i

y=4+2i

---

1st problem:

3y-2x

3(4+2i)-2(-2-3i)

Distribute:

12+6i+4+6i

Combine like terms:

16+12i

---

2nd problem:

-3x \cdot y

-3(-2-3i) cdot (4+2i)

-3(-2-3i)(4+2i)

Distribute -3 to first factor:

(6+9i)(4+2i)

Use foil to simplify:

24+12i+36i+18i^2

Replace i^2 with -1:

24+48i-18

Combine like terms:

6+48i

---

3rd problem:

x \cdot 2y

(-2-3i) \cdot 2(4+2i)

Distribute 2 to the second factor:

(-2-3i) \cdot (8+4i)

(-2-3i)(8+4i)

Use foil to simplify:

-16-8i-24i-12i^2

Replace i^2 with -1:

-16-32i+12

Combine like terms:

-4-32i

----

4th problem:

(-2-3i)-(4+2i)

Distribute:

-2-3i-4-2i

Combine like terms:

-2-4-3i-2i

Simplify:

-6-5i

6 0
3 years ago
Read 2 more answers
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