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morpeh [17]
3 years ago
15

What is it please help me

Mathematics
1 answer:
yawa3891 [41]3 years ago
6 0
There's 8 total sections
2 sections are shaded
so that's 2/8
which is 1/4 simplified
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Please let me know the correct answer.
NNADVOKAT [17]

Set h to 640 and solve for t:

640 = -490t^2 + 1120t

Subtract 640 from both sides:

-490t^2 + 1120t - 640 = 0

The formula to solve a quadratic equation is:

x = -b -/+ sqrtroot (b^2-4ac)/(2a) where a = -490, b = 1120 and c = -640

Solve:

x = -1120 -/+ sqrtroot (1120^2-4(-490)(-640) )/ 2(-490)

x = 8/7 = 1.1428 = 1.14

Time was 1.14 seconds

4 0
3 years ago
What is 199 times 347
marusya05 [52]

Answer:69,053

Step-by-step explanation: my bad i added it the frist time lol

7 0
2 years ago
Read 2 more answers
Find the pressure exerted by a force of 240 N on an area of 30 cm2. Find the answer in SI unit​
NeTakaya

Answer:

<u>Pressure</u><u> </u><u>is</u><u> </u><u>8</u><u>0</u><u>,</u><u>0</u><u>0</u><u>0</u><u> </u><u>pascals</u><u>.</u>

Step-by-step explanation:

Area:

= { \bf{ 30 \times  {10}^{ - 4}   \:  {m}^{2} }}

Pressure:

{ \bf{pressure =  \frac{force}{area} }} \\  \\  { \tt{ =  \frac{240}{30 \times  {10}^{ - 4} } }} \\  = { \tt{80000 \: pascals}}

4 0
3 years ago
Please ASAP.<br> Find the value of u.
shusha [124]

Answer:

The answer is B 62

Step-by-step explanation:

I just divid 124 by 2

5 0
3 years ago
Which of the following graphs shows b &lt; 4 ?
serg [7]

Answer:

C

Step-by-step explanation:

< is an open circle and graph C is the only one with an open circle

6 0
3 years ago
Read 2 more answers
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