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3 years ago

Explain how u would find 34×3/4 mentally.

Mathematics

1 answer:

love history [14]3 years ago

4 0

Turn 34 into an improper fraction ( 34/1 ) and multiply it by 3/4. You get 20 1/2

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When f(x) = 2x 2 + 3, find f(-3). -15 21 39

notsponge [240]

Answer:

Step-by-step explanation:

f(x) = 2x^2 + 3

f(-3) = 2(-3)^2 + 3

f(-3) = 2(9) + 3

f(-3) = 18 + 3

f(-3) = 21

6 0

3 years ago

Give the values of a, b, and c needed to write the equation's general form. 1/4x^2+5=0

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Hi my lil bunny!

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Let's solve your equation step-by-step.

$\frac{1}{4} x^2+5=0$

For this equation: $a=0.25, b=0, c=5$

$0.25x^2 + 0x + 5 = 0$

Step 1: Use quadratic formula with $a=0.25, b=0, c=5.$

$x = \frac{-b ± \sqrt{b^2 - 4ac} }{2a}$

$x = \frac{-(0) ± \sqrt{(0)^2 -4 (0.25) (5) } }{2(0.25)}$

$x = \frac{0 ± \sqrt{-5} }{0.5}$

Answer : No Real Solutions.

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If this helped you, could you maybe give brainliest..?

Also Have a great day/night!

❀*May*❀

5 0

3 years ago

Domain: -5 -4 -3.-20. 1. 2. 3. 4. 5)

notsponge [240]

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8 0

3 years ago

23% put into a fraction

never [62]

Answer:

23/100

Explanation:

23% is 23 out of 100. 23/100 can not be simplified further.

3 0

2 years ago

Read 2 more answers

Mr. David monthly salary is revised from $2500 to $2600.What percentage is the salary increased

Sveta_85 [38]

Answer:

4% Hope this helped.

Step-by-step explanation:

The formula is: final value minus starting value divided by the starting value then times 100

THIS FORMULA ONLY APPLIES TO PERCENT INCREASE

Final Value−Starting Value

Starting Value x100

Plug numbers in

2600-2500/2500 x 100

100/2500=0.04

0.04x100

=4%

5 0

3 years ago

Read 2 more answers