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3 years ago

Evaluate the expression for p = –1. –50p2 − 10p + 28 =

Mathematics

2 answers:

mars1129 [50]3 years ago

6 0

Answer:

-12

Step-by-step explanation:

$-50(-1)^2 -10(-1) + 28$
$-50(1) + 10 + 28$
$-50 + 38$
$-12$

Therefore, the answer is -12.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

LekaFEV [45]3 years ago

3 0

For p2 do you mean p multied by 2 or is it squared by 2

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Find a quadratic expression with integer coefficients whose roots are <img src="https://tex.z-dn.net/?f=5%2F2%2B%203i" id="TexFo

prohojiy [21]

Answer:

4x² -20x +61

Step-by-step explanation:

the quadratic equation can be written as (x-root1)(x-root2)

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x² -(5/2)x +3xi -(5/2)x + 25/4 -(15/2)i -3xi +(15/2)i -9i², simplify

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4x² -20x +61

7 0

3 years ago

Oh and alsoo can someone plzzzzz add an explanation

Pani-rosa [81]

Answer:

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Step-by-step explanation:

42/6 = 7

7 x 5 = 35

35/42 = 5/6

Brian sold 35 tickets

(I know this isn't part of the question, but Brain didn't sell 7 tickets)

5 0

3 years ago

Factorise fully the following: 4x^3+24x^2 4x^2+28x^3

prohojiy [21]

I think the answer is 4x^2 (x+6)

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3 years ago

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lara [203]

Answer:

$T = \frac{6b+4}{R}$

Step-by-step explanation:

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$6B=RT-4$ (times 6 on both sides)

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thus

$T = \frac{6b+4}{R}$

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Answer:

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