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horsena [70]
3 years ago
15

If AC = 2x + 13 and DB = 4x - 1. Find DB

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0
The answer is 7

2x+13=4x-1
14=2x
7=x
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What is 264 nearest hundred​
Anna35 [415]

Answer:

300

Step-by-step explanation:

50 and above is rounded up

49 and below is rounded down

7 0
3 years ago
The height of an object tossed upward with an initial velocity of 120 feet per second is given by the formula h = −16t2 + 120t,
AleksAgata [21]

Answer:

7.5 seconds

Step-by-step explanation:

h =  - 16 {t}^{2}  + 120t \\  \because \:  we \: have \: to \: find \:  the  \:  time  \: required  \:  \\ for \:  the \:  object \:  to \:  return to \:  its  \:  \\ point \:  of  departure. \\  \therefore \: plug \: h = 0 \: in \: the \: given \: euation. \\  \therefore \: 0 =   - 16 {t}^{2}  + 120t \\ \therefore \:16 {t}^{2}  - 120t = 0 \\ \therefore \:8t(2t - 15) = 0 \\ \therefore \:8t = 0 \:  \: or \:  \: (2t - 15) = 0 \\ \therefore \:t =  \frac{0}{8}  \: or \: t =  \frac{15}{2}  \\ \therefore \:t = 0 \: or \: t = 7.5 \\  \because \: t = 0 \: is \: not \: possible \\ \huge \purple{ \boxed{  \therefore \: t = 7.5 \: seconds}}

Thus, the time required for the object to return to its point of departure is 7.5 seconds.

4 0
3 years ago
What is the area of a rectangle with a length of 5/8foot and a width of 4/9 foot?
VLD [36.1K]
The answer is 20/72 or 5/18
5 0
3 years ago
Can anyone help??? will give best answer brainliest!!
tia_tia [17]

Answer:

5xy = 2

Step-by-step explanation:

This is the only one that has two (x & y) letters/integers on one single number.

3 0
2 years ago
A summer pool membership costs $275 for 3 months. You can also buy an individual pass for $12.50. If you plan to go to the pool
Leona [35]
12.50 x 8 = 100
100 x 3 = $300
so $275 for 3 months would be the better deal but i’m not sure if by each month u meant 3 months or the whole year. if the whole year was the case it would be
12.50 x 8 = 100
100 x 12 = $1,200
275 x 4 = $1,100
so in that case $275 for 3 months would still be the better deal.
5 0
2 years ago
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