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anyanavicka [17]
2 years ago
11

3 substracted from 9 times 2 and 5 is added​

Mathematics
1 answer:
anyanavicka [17]2 years ago
8 0

Answer:

20

Step-by-step explanation:

It is because 9x2=18

3 subtracted from 18 is 15

15+5=20

please mark brainliest

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Please help
Schach [20]

Answer:

Hence, option: B is correct (11.02 seconds)

Step-by-step explanation:

Spencer hits a tennis ball past his opponent. The height of the tennis ball, in feet, is modeled by the equation h(t) = –0.075t2 + 0.6t + 2.5, where t is the time since the tennis ball was hit, measured in seconds.

Now we are asked:

How long does it take for the ball to reach the ground?

i.e. we have to find the value of t such that height is zero i.e. h(t)=0.

-0.075t2+0.6t+2.5=0

or 0.075t^2-0.6t-2.5=0

i.e. we need to find the roots of the above quadratic equation.

on solving the equation we get two roots as:

t≈ -3.02377 and t≈11.0238

As time can't be negative; hence we will consider the value of t as t≈11.0238.

Hence it takes 11.02 seconds for the ball to reach the ground.

Hence option B is correct (11.02 seconds).

7 0
4 years ago
Read 2 more answers
9. Anderson writes his name in English and Spanish language with
galben [10]

Answer:

6.

Step-by-step explanation:

The number of ways = 2 languages * 3 implements

= 6

5 0
3 years ago
1. A recipe calls for cups of flour, cup of white sugar, and cup of brown sugar. The recipe makes 6 servings.
zlopas [31]

1. This problem lacks given values, where are the numbers? Just fill-in the numbers I will variables in this case.

Let us say that:

x = number of cups of flour

y = number of cups of white sugar

z = number of cups of brown sugar

(a) Just divide x by 6 to get cups of flour per serving

x / 6

(b) Simply add y and z and divide the sum by 6

(y + z)/6

(c) From (a) we know that there are x / 6 flours per serving, so simply multiply that by 9 then subtract the original x to know how much more you need:

[(x / 6) * 9] – x

 

2.

(a) We know that we deposit $5 per day, so after 5 days we got:

total deposit = ($5 / day) * 5 days = $25

(b) The total deposit is 25 dollars, so removing $2 a day we need:

25 / 2 = 12.5 days

 

3.

(a) d is distance, R is rate, T is time

32.12 = 8.8 T

(b) It is rightful to write distance d as a positive number since the scuba diver was ascending towards the surface. If this is to be plotted on a Cartesian plane, we are moving towards the positive y axis

(c) solving for T:

32.12 = 8.8 T

T = 32.12 / 8.8

T = 3.65 minutes

4 0
3 years ago
For their homecoming​ parade, the students of​ U-Math have created a colorful​ banner, 41 meters in​ length, that is made of two
Rudik [331]

Answer:

33

Step-by-step explanation:

let the shorter piece be x m

then the longer piece is 41-x

"The short piece is 25 meters shorter then the long piece"

or

the difference between the longer and the shorter is 19

--->

(41-x) - x = 25

41-x-x = 25

-2x = 25-41

-2x = -16

divide both sides by -2

x = 8

I defined x to be the short piece ---- 8

I defined 41-x to be the longer --- 41-8 = 33

4 0
3 years ago
The track pine middle school is 1/3 of a mile for each lap. mathew walked around the track and completed 9 laps in one hour. how
Nina [5.8K]
He walked 3 miles in an hour. He would have to also walk 9 laps in 45 minutes to walk the same amount. Not sure what your question is?
7 0
4 years ago
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