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KonstantinChe [14]
3 years ago
10

Please please please

Mathematics
2 answers:
jarptica [38.1K]3 years ago
8 0
The answer is 36 because each year has 12 months so in that case you multiply 12 times 3 and you get your answer which is 36

Readme [11.4K]3 years ago
7 0
The answer is D 156 weeks
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a diagonal of a convex polygon is a line segment whose end points are the consecutive vertices of the polygon.say true or false​
AysviL [449]

Answer:

Step-by-step explanation:

False. Diagonals of a convex polygon is a line segment that joints two non adjacent vertices.

7 0
3 years ago
Need help ASAP please!
zmey [24]

Answer:

(mark me brainliest) q=5

Step-by-step explanation:

q would be = 5

and so would the height = 5

here is the rule for 45-90-45

hypotenuse is basically the other two lengths with \sqrt{2}

so that is why q would be 5

7 0
3 years ago
A projectile is fired from ground level with an initial speed of 550 m/sec and an angle of elevation of 30 degrees. Use that the
Nana76 [90]

Answer:

x (max) = 26760 m

y (max)  = 3859  meters

V = 549.5  m/sec

Step-by-step explanation:

Equations to describe the projectile shot movement are:

a(x)  =  0     V(x)  =  V(₀) *cos α                  x  =  V(₀) *cos α  * t

a(y)  = -g     V(y)  =  V(₀) * sin α  - g*t         y  =   V(₀) * sin α *t  - (1/2)*g*t²

a ) What is the range of the projectile.   α  =  30°

then  sin 30° = 1/2     cos  30° = √3 /2   and     tan 30° = 1/√3

x  maximum occurs when in the equation of trajectory  we make  y  = 0

Then

y  =  x*tan α  -  g*x / 2*V(₀)²*cos²  α

x*tan α  =  g*x /  2* V(₀)²*cos²  α

By subtitution

1/√3    =   9.8* x(max)  / 2* (550)²*0.75

(1/√3) * 453750 / 9.8  = x (max)

x (max) = 453750 / 16.95   meters

x (max) = 26760 m

The maximum height is when V(y) = 0

We compute t in that condition

V(y)  =  0  =  V(₀) * sin α - g*t

t  =   V(₀) * sin α / g       ⇒   t  =  550* (1/2) / 9.8

t  =  28.06 sec

Then  h (max)  =   y(max)  =  V(₀) sin α * t  - 1/2 g* t²

y (max)  =  550* (1/2)*28.06 - (1/2)* 9.8 * (28.06)²

y (max)  =  7717  -  3858  

y (max)  = 3859  meters

What is the speed when the projectile hits the ground

V  =  V(x)  + V (y)    and   t  =  2* 28.06         t  =  56.12 sec

mod V  =√ V(x)²  + V(y)²

V(x)  =  V(₀) cos α    =  550 * √3/2

V(x)  = 475.5  m/sec       V(x)²   =  226338 m²/sec²

V(y) =  550*1/2   -  9.8* 56.12     ⇒  V(y) = 275  -  549.98

V(y) =  - 274.98          V(y) ²   =  

V =  √ 226338 + 75614     ⇒  V = 549.5  m/sec

7 0
3 years ago
X - y = 4 and x + y = 9
alisha [4.7K]

Answer:

5-1=4 and 5+4=9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please answer this correctly without making mistakes
Ludmilka [50]

Answer:

10 9/20

Step-by-step explanation:

<em>Hey there!</em>

If Hillsboro to Campbell is 16 2/20 and Hillsboro to Oxford is 5 13/20,

we’ll do

16 2/20 - 5 13/20

Imrpoper form

322/20 - 113/20

322 - 113

209/20

10 9/20 miles from Oxford to Campbell.

<em>Hope this helps :)</em>

6 0
3 years ago
Read 2 more answers
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