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Andre45 [30]
3 years ago
15

A projectile is fired straight upward from the Earth's surface with an initial speed of 33.3m/sec. What is it's speed after 2.8s

ecs?
Mathematics
1 answer:
o-na [289]3 years ago
8 0

Answer:

let's write it as an equation

speed in m/sec (s) = 33.3 -9.81s

speed in m/sec (2.8) = 33.3 -9.81*2.8 = 5.832

9.81 is the deceleration due to earth's gravity.

the speed changes that ammount per second.

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Delta Math: Angle Terminology with Equations
vazorg [7]

Answer:

m∠A = 139°

Step-by-step explanation:

Since knowing that:

Supplementary angles = 180 degree

Thus we put that in both equation:

( 7x - 15 ) + ( 2x - 3 ) = 180

Combine like terms & use inverse operations to find the value of x:

( 7x - 15 ) + ( 2x - 3 ) = 180

9x - 18 = 180

9x - 18 + 18 = 180 + 18

9x  = 198

9x/9 = 198/9

x = 22

Hence,  Angle A will have a measure of 7x - 15 which means  7 ×  22 -15 = 154 - 15 = 139°

m∠A = 139°

The measure of Angle B will be 2x - 3 = 2 • 22 - 3 = 44 - 3 = 41°

m∠ B = 41°

Check Answer by add 139 and 31 which equal 180

<u><em>~lenvy~</em></u>

3 0
2 years ago
What is the solution to the equation below?<br> log 7+ log(x-4)= 1
ikadub [295]
The answer to the solution is:
X= 7
3 0
3 years ago
A certain company's main source of income is selling socks. The company's annual profit (in millions of dollars) as a function o
ivann1987 [24]
A quadratic function models the profit of the company and the maximum/minimum value of the quadratic function occurs on its vertex. 

The given function is:

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This mean if the company sets the price of socks to $5 they will earn a maximum profit which is $ 12 million
3 0
3 years ago
Read 2 more answers
Name the quadrilaterals that have four equal angles.
Alex73 [517]
B. square, rectangle
7 0
3 years ago
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Find the value of x in the figure below:
KIM [24]

Answer:

let remaining angle in heptagon be a.

a+64=180(linear pair)

a=116

again

x+155+90+163+a+121°=720(sum of interior angle of hexagon is (6-2)×180°)

x+529+a=720

x+116=720-529

x=191-116=75

5 0
3 years ago
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