3 years ago

Which expression represents

Mathematics

1 answer:

Nesterboy [21]3 years ago

7 0

Answer:

(40+ 19) – 38

Step-by-step explanation:

We need to find the expression for "thirty-eight less than the sum of forty and nineteen".

Sum of forty and nineteen = 40 + 19

38 less than the above is 40 + 19 - 38

Overall expression is :

(40 + 19) - 38

Hence, the correct option is (d) "(40+ 19) – 38".

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. Twice a number decreased by eight. if the number N, the expression is

tester [92]

Answer:

2n-8

Step-by-step explanation:

twice n is 2n. decreased by 8 is the -8

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3 years ago

A ball with mass m kg is thrown upward with initial velocity 28 m/s from the roof of a building 17 m high. Neglect air resistanc

Nutka1998 [239]

a. At its maximum height, the ball has zero vertical velocity, so

$-\left(28\dfrac{\rm m}{\rm s}\right)^2=2(-g)(y_{\rm max}-17\,\mathrm m)$

$\implies y_{\rm max}=57\,\mathrm m$

b. The ball's height in the air $y$ at time $t$ is given according to

$y=17\,\mathrm m+\left(28\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2$

Solve for $t$ when $y=0$ :

$17+28t-4.9t^2=0\implies t\approx6.3\,\mathrm s$

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3 years ago

Which number has a thousands digit that is ten times greater than the hundreds digit?

MArishka [77]

Answer:

Step-by-step explanation:7 is greater than 2

8 0

4 years ago

Please help ASAP!!! will give out brainiest!!!

Phantasy [73]

Answer:

5 miles

Step-by-step explanation:

if you do divide 26,400 by 5,280 the answer you would get would be five so for each mile you do it would all equal up to 5,280. Also to check your answer 5,280 times 5 is 26400

6 0

3 years ago

10. Allen has $3.30 in dimes and quarters. If he has 24 coins in all, find the number of dimes and quarters

agasfer [191]

Answer:

6 Quarters and 18 Dimes

Step-by-step explanation:

18 x 0.10 = $1.8

6 x 0.25 = $1.5

$1.5 + $1.8 = $3.30

3 0

2 years ago