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IRISSAK [1]
3 years ago
10

a projectile is fired from the ground with an upward speed of 245 m/s. after how many seconds will it return to the ground? use

the formula h = vt - 4.9^2
Mathematics
1 answer:
Papessa [141]3 years ago
5 0

WORK:


Solving for t:

245 - 4.9t = 0

-4.9t = -245

t = -245/-4.9


t = 50 seconds

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PHOTO ABOVE <br> (13x-57). (6x-10). Z. <br> Find the values of x and z
Lera25 [3.4K]
X=13 and z=112
you know that (13x-57) + (6x-10) = 180 since they are supplementary, so you will solve that. it will give you x=13. now that you know x, you can solve for z by plugging in 13 for x on 13(x)-57 since that and angle z are congruent. when you simplify, you will get z=112.
you can check your answer by doing (6x-10) +112=180. this is because they are supplementary. you should get x=13, and that is how you know you are right.
4 0
3 years ago
Each bucket holds 325 gallons of water. If it takes 6 buckets to fill a tank, how much water does the tank hold?
Gemiola [76]

Answer:

1950

Step-by-step explanation:

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hope this helps

8 0
3 years ago
$14,038 is invested, part at 14% and the rest at 12%. If the interest earned from the amount invested at 14% exceeds the interes
Advocard [28]

Answer:

492.99

Step-by-step explanation: x = amount invested at 12%

y = amount invested at 9%

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x + y = 20287

0.12x = 0.09y + 492.99

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put the system of linear equations into standard form

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x + y = 20287

0.12x - 0.09y = 492.99

5 0
3 years ago
Use the multiplier method to increase £258 by 43%<br>You must show your working.​
raketka [301]

Hello there, to answer your question...

258, percentage increased by 43% (percent) of its value

<h2> = 368.94</h2>

<em>258 + 43% = 368.94</em>

<em></em>

I hope this information helps.

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The cost of an ideal is 100% of its price. What number goes in place of ? In the additional problem?
JulijaS [17]

Answer:

100

Step-by-step explanation:


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4 years ago
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