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Nana76 [90]
3 years ago
8

4. Suppose 4x + 9 pizzas were sold on Monday and 3x - 4 pizzas were sold on

Mathematics
1 answer:
vekshin13 years ago
7 0

Answer:

7x+5 pizzas were sold.

Step-by-step explanation:

4x and 3x combine to make 7x. Since we are adding 9 and also subtracting 4, they cancel out to be adding only 5. Combine this to make 7x+5.

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vladimir1956 [14]

The answer is D.

Hope this helps!

5 0
3 years ago
A certificate of deposit has an annual simple interest rate of 5.25%. If $567 in interest is earned over a 6 year period, how mu
Scrat [10]
Find the the amount of interest per year. Since $567 were earned over 6 years, you divide the interest earned by the number of years it took to accumulate it:

$567/6 years = $94.5/year

Divide that by the interest rate which the interest rate needs to be in decimal form:

$94.5/.0525 = $1800
4 0
3 years ago
The diameter of a circle is 8 inches. What is the area? 8 pi iThe diameter of a circle is 8 inches. What is the area? 8 pi inche
Aleksandr [31]

Answer:

16pi inches squared is the answer

Step-by-step explanation:

9 0
3 years ago
Read 2 more answers
NEED HELP PLEASE!
USPshnik [31]

Answer:

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

i^2 = -1

Square of the sum:

(x + y)^2 = x^2 + 2xy + y^2

In this question:

(x + (3+5i))^2

x^2 + 2x(3+5i) + (3+5i)^2

x^2 + 6x + 10xi + 9 + 30i + 25i^2

x^2 + 6x + 9 + (10x+30)i - 25

x^2 + 6x + (10x+30)i - 16

So

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

5 0
3 years ago
Round to the nearest tenth
LUCKY_DIMON [66]

Answer:

1. 2.6

2. 29.1

3. 2490

4 3.4

Step-by-step explanation:

4 0
2 years ago
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