Mathematics: 2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and - id22332422234119903, almostnevercbbc

tierann46

12.01.2022

First, simplify the expression 2r^2 + 3s^3 - r^2 + 4t^2 - r^2. Here you have three terms with r^2, group them in the following way:

2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=

=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

19.

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janeou17xn

12.01.2022

Step-by-step explanation:

Given the formula:

2r^2 + 3s^3 − r^2 + 4t^2 − r^2

Replace with these values r = −2, s = −3, and t = 5 and compute the result.

2(-2)^2 + 3(-3)^3 − (-2)^2 + 4(5)^2 − (-2)^2 =

= 2*4 + 3*(-27) - 4 + 4*25 - 4 =

= 8 - 81 - 4 + 100 - 4 =

= 19

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okayjimz2003ov47ik

18.10.2022

$1350

Step-by-step explanation:

40% of $2250

40/100 x 2250/1 = 900

since we have to find the discount of the total amount, we have to subtract the value with the discount

Original price - discount price = 2250 - 900

2250 - 900 = 1350

Answer = $1350

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