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lisabon 2012 [21]
3 years ago
5

PLEASE HELP ME PLS I NEED IT

Mathematics
1 answer:
SOVA2 [1]3 years ago
6 0

Answer:

X=17.9

Step-by-step explanation:

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247: 10^2 and 247*10^2 what is the different about the two answers
CaHeK987 [17]
Um the 2nd one has a star
5 0
3 years ago
If m A. <br> 25°<br> B. <br> 12.5°<br> C. <br> 37.5°<br> D. <br> 50°
chubhunter [2.5K]
It’s A because the angles are acute and thoses are 25
8 0
2 years ago
the empire state building is 1250 feet tall. IF an object is thrown upward from the top of the building at an initial velocity o
ss7ja [257]

Answer:

Time for the object to get h(max)    s = 1.1875 sec

h (max)  = 1272.57 feet

Down time for the object to hit the ground   =  4.25 sec

Step-by-step explanation:

The relation

h(s)  =  -  16*s²  +  38* s  + 1250    (1)

Is equivalent to the equation for vertical shot

Δh = V(i)*t  -  1/2g*t²  (in this case we don´t have independent term since the shot is from ground level. We can see in (1), the independent term is 1250 feet ( the height of the empire state building), the starting point of the movement.

The description of the movement is:

V(s)  =  V(i)  - g*s     ⇒  V(s) = 38 - 32*s

At h(max)    V(s)  =  0      38/32  = s

So the maximum height is at  s = t = 1.1875 sec

The time for the object to pass for starting point is the same

t  =  1.1875 sec

h(max) is

h(max)  = - 16* (1.1875)² +  38 (1.1875) + 1250

h(max)  =  -  22,56  +  45.13  +  1250

h(max)  =  1272.57 feet

Time for the object to hit the ground is

h(s)  =  - 1250 feet

-1250  =  - 16 s² + 38*s  + 1250

-16s² +  38s  =  0

s ( -16s + 38 )  =  0

First solution for that second degree equation  is x = 0 which we dismiss

then  

( -16s + 38 )  =  0    ⇒ 16s   =  38     s  =  38/16

s =  2.375 sec    and  we have to add time between h (max) and to get to starting point  ( 1. 1875 sec)

total time is  = 2.375 + 1.875

Total time  =  4.25 sec

4 0
3 years ago
Consider the inequality x + 7 &lt; 9. Select all the true statements.​
alex41 [277]

Answer:

Step-by-step explanation:

here you go mate

step 1

x + 7 < 9  equation

step 2

x + 7 < 9  subtract -7

x+7(-7)<9(-7)

answer

x<2

3 0
3 years ago
Given That ABCD is a rhombus, what is the value of x?
3241004551 [841]
5x - 18 + x = 90

6x = 108

x = 18 degrees
8 0
3 years ago
Read 2 more answers
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