3 years ago

What is the solution of this quadratic equation? x2 + 10 = 0

Mathematics

1 answer:

frozen [14]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

put the 10 on the other side of the = wich will change it to -10 then do -10/2 and x2/2 to get x=-5

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In April 1986, a flawed reactor design played a part in the Chernobyl nuclear meltdown. Approximately 14252 becqurels (Bas), uni

DaniilM [7]

Answer:

A. Yes, because by 2206, the radioactive element remaining in the area is less than 800 Bqs.

Step-by-step explanation:

Function for the amount of radioactivity:

The function for the amount of radioactivity, in t years after 1996, is given by:

$f(t) = 14252(0.5)^{\frac{t}{32}}$

Find f(220) to determine the amount of becqurels in 2206.

$f(220) = 14252(0.5)^{\frac{220}{32}} = 121.42$

121.42 < 600, so the area will be safe, and the correct answer is given by option A.

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2 years ago

George jogged a total distance of 9 and 1 over 2 miles during the months of October and November. If George only jogged 1 over 4

Elanso [62]

(9 and 1/2)/(1/4)= number of days he went jogging

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3 years ago

Read 2 more answers

Round 4.0987 to the nearest 1/10

Gnom [1K]

4.0987 rounded to the nearest tenth.

4.0987
^ This is the tenths place

Look at the number after it, if it's 5 or more, round up, if it's 4 or less, round down.

It's 9, so we round up to 4.1

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3 years ago

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What is the midway of XY?

Lostsunrise [7]

The midpoint of XY is -0.5

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3 years ago

The expression 3^2 ∙ 3^n simplifies to 3^20.

tiny-mole [99]

Answer: 18

Step-by-step explanation:

3² * 3ⁿ = 3²⁰

3⁽²⁺ⁿ⁾ = 3²⁰

2 + n = 20

-2 -2

n = 18

7 0

2 years ago