Mathematics, 25.09.2021 17:30 Penguin1502

N+(13−n)÷5 for n=3 ; =

2. 3x+x÷3 for x=12
; =

3. 2xy +x2, when x=3, y=5
; =

4. 1+3(m2−20) when m=5
; =

5. 3x2, when x=4
; =

6. (3x)2, when x=4
; =

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 20:30, extasisjorge

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

Answers: 1

continue

Mathematics, 21.06.2019 21:50, lilybrok04

(x-5)1/2+5=2 what is possible solution of this equation

Answers: 1

continue

Mathematics, 21.06.2019 23:20, IDONTHAVEABRAIN

Which expression is the factorization of x^2+10+21

Answers: 3

continue

Mathematics, 22.06.2019 00:00, xXwolfieplayzXx

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

Answers: 3

continue

You know the right answer?

N+(13−n)÷5 for n=3 ; =

2. 3x+x÷3 for x=12
; =

3. 2xy +x2, when x=3...