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Vedmedyk [2.9K]
2 years ago
8

What is the answer to this math question

Mathematics
1 answer:
klasskru [66]2 years ago
4 0

Answer:

C.

Step-by-step explanation:

3.3*10^3 / 7

= 3300/7

= 471.4

= 4.71*10^2

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Use the zero product property to find the solutions to the equation x2 – 13x + 30 = 0.
alukav5142 [94]

Answer:

<u>The solutions to this quadratic equation are 10 and 3.</u>

Step-by-step explanation:

1. Let's recall the formula for solving this type of equations, called quadratic equations:

 x = ( - b +/- √ b² - 4ac)/ 2a

The equation given is  x2 – 13x + 30 = 0,

where a = 1, b = - 13 and c = 30

Now replacing with the real values, we have

x = [ - (-13) +/- √ (-13)² - 4 * 1 * 30] / 2 * 1

x = [ 13 +/- √ 169 - 120] / 2

x = [13 +/- √ 49]/ 2

x = [ 13 +/- 7 ]/ 2

<u>x₁ = 13 + 7/2 = 20/2 = 10</u>

<u>x₂ = 13 - 7/2 = 6/2 = 3</u>

8 0
3 years ago
Tina wants to save money for school. Tina invests $1000 in an account that pays an interest rate of 8%. How many years will it t
Neko [114]
1300 = 1000 (1.08)^t
1.3 = (1.08)^t
log base 1.08 (1.3) = t
3.41 = t
8 0
3 years ago
What is 0.875 written as a number name?
Ainat [17]

Answer:

How to write out number 0.875: eight hundred seventy-five thousandths

Step-by-step explanation:

6 0
3 years ago
Compare A and B in three​ ways, where Aequals=52,193 is the number of deaths due to a deadly disease in the United States in 200
andreyandreev [35.5K]

Answer:

a. The ratio of A to B is 2.92 : 1

b. The ratio of B to A is 1 : 2.92

c. A is 292% of B

Step-by-step explanation:

A = 52193

B = 17878

a. The ratio of A to B is: 52193 : 17878

To get the ratio in lower form, divide A with B (since it is the smallest of the two value) and the result is:

2.92 : 1

b. The ratio of B to A is: 17878 : 52193

1 : 2.92

c. The percentage of A to B is:

= \frac{A}{B}  * 100\\= \frac{52193}{17878}  * 100\\= \frac{5219300}{17878} \\= 291.939814297\\= 292%

6 0
3 years ago
Read 2 more answers
*ੈ✩‧₊˚
elena-s [515]
Answer is 44-2/5

Step by step. I did a print screen showing how we can use cancellation with the 3 and 9 so the numbers are smaller. Then we multiplied across to get 222/5.

Divide 222 by 5 = 44-4/10, simplified to 44-2/5.

5 0
2 years ago
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