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Vesnalui [34]
3 years ago
13

Type the missing number in this sequence: C , 38, 28, 18, 8, -2, -12

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

48

Step-by-step explanation:

If you go in the opposite direction, you will notice that each time the numbers go up by ten. So if you counted ten up from 38 it would be 48!

Let me know if this helps! Bya!

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Write as an algebraic expression <br> the quotient of 30 and 5
kirill [66]

Answer:

30÷5=6.

Step-by-step explanation:

Quotient means to divide, 30÷5 is 6 since 5x6 or 6x5 is 30.

4 0
3 years ago
HELP ME THIS IS EXTRA CREDIT!!!!!!! 
Svetach [21]
2800 + 1.18x = y
x = monthly sales
y = monthly income
y needs to be at least 6400 so that means;

2800 + 1.18x ≥  6400
1.18x ≥ 6400 - 2800
x ≥ (6400 -2800) / 1.18
x ≥ 3050

So she needs to earn at least 3050, which means <span>≥ 3050</span>

3 0
3 years ago
If the sum (3x ^ 2 - 2x + 12) + (x ^ 2 + 8x - 2) is multiplied by 2x ^ 2 what is the result written in standard form ?
alexandr402 [8]
(3x^2 - 2x + 12) + (x^2 + 8x -2)
= (4x^2+6x+10)(2x^2)
= 4x^2(2x^2)+6x(2x^2)+10(2x^2)
= 8x^4 + 12x^3 + 20x^2
5 0
3 years ago
A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i what is the students mistakes
Rufina [12.5K]

Answer:

1. In the multiplication of the imaginary parts, the student forgot to square of i. OR

2. The student has only multiplied the real parts and the imaginary parts.

Correct value =22+7i.

Step-by-step explanation:

The given expression is

(4+5i)(3-2i)

A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i.

Student's mistake can be either 1 or second:

1. In the multiplication of the imaginary parts, the student forgot to square of i.

2. The student has only multiplied the real parts and the imaginary parts.

(4+5i)(3-2i)=4\times 3+5\times (-2)i=12-10i

Which is not correct. The correct steps are shown below.

Using distributive property, we get

4(3-2i)+5i(3-2i)

4(3)+4(-2i)+5i(3)+5i(-2i)

12-8i+15i-10i^2

12+7i-10(-1)       [\because i^2=-1]

12+7i+10

22+7i

Therefore, the correct value of (4+5i)(3-2i) is 22+7i.

4 0
3 years ago
How to change 0.393 into a fraction
lubasha [3.4K]
You could change 0.393 to a fraction by putting it over 1000
in this case put it over 0.393= 396/1000
the / is the fraction
it is 396 over 1000
7 0
3 years ago
Read 2 more answers
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