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2 years ago

FP!! what is 300 + 50

Mathematics

2 answers:

MAVERICK [17]2 years ago

8 0

Answer:

350

Step-by-step explanation:

r-ruslan [8.4K]2 years ago

3 0

Answer will be is 350

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Solve the following new equation

mixer [17]

Answer:

<h3>x = 1.54 or x = - 4.54 to 2 decimal places</h3>

Step-by-step explanation:

x² + 3x - 7 = 0

Using the quadratic formula

a = 1 b = 3 c = - 7

$x = \frac{3 ± \sqrt{ {3}^{2} - 4(1)( - 7) } }{2(1)} \\ x = \frac{ - 3± \sqrt{9 + 28} }{2} \\ \\ x = \frac{ -3 ± \sqrt{37} }{2} \\ \\ x = \frac{ - 3 + \sqrt{37} }{2} \: \: \: \: \: or \: \: \: x = \frac{ - 3 - \sqrt{37} }{2} \\ \\ x = 1.54 \: \: \: or \: \: x = - 4.54$

Hope this helps you

7 0

2 years ago

In four years, 40% of a radioactive element decays. Find its half-life. Round to one decimal place.

White raven [17]

To find the answer, use $k = \frac{2.303 }{ 4} (log\frac {100 }{ 40})$ , and then use the equation $t=\frac{.693}{k}$ To find it's half life.

5 0

2 years ago

Read 2 more answers

PLS HELP I NeED to finish this

mote1985 [20]

Answer:

D. 15

Step-by-step explanation:

Use proportions.

$\frac{35}{25} = \frac{21}{x} \\\\35x = 525\\x = 15$

3 0

2 years ago

How to do HCF and LCM

aliya0001 [1]

To find the GCF, list the prime factors of each number, then multiply the factors that both number have in common. To find the LCD, find the smallest possible integer divisible by both numbers.

7 0

2 years ago

Solve the inequality. 5q + 22-13

kirill115 [55]

Answer:

The answer is 5q + 9.

Step-by-step explanation:

1) Collect like terms.

$5q + (22 - 13)$

2) Simplify.

$5q + 9$

hence, the answer is 5q + 9.

6 0

2 years ago