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OLEGan [10]
3 years ago
12

I need help.. >w<

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0

Answer:

C) 30 + 6 + 0.9 + 0.05

Step-by-step explanation:

30. 0.9. 36

+6. +0.05. +00.95

---------. -------------. ---------------

36. 0.95. 36.95

----------. --------------. --------------

36+0.95=36.95

ruslelena [56]3 years ago
3 0

Answer:

O C)30+6+0.6+0.05 hope this helps

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Find the value of the expression when b= 9 c= 5 and d=10 ............ ½d + c² - b
Minchanka [31]

Answer:

1/2d+c^2-b = 21

Step-by-st ep explanation:

= 1/2(10) + 5^2 -9

= 5 + 25 - 9

= 30 - 9

= 21

4 0
3 years ago
Suppose an astronaut can jump vertically with an initial velocity of 5 m/s. The time that it takes him to touch the ground is gi
Vitek1552 [10]

Answer:

t=1.020s

Step-by-step explanation:

Given Equation:

5t-0.5at^{2} =0

Actually the given equation is the 2nd equation of motion

i.e. S =V_{i} t+0.5at^{2}

where S=0 because the astronaut jumps on the earth

and initial velocity V_{i}=5

to find time t, put the given value of a=9.8m/s^{2} in the given equation, we get

5t-0.5(9.8)t^{2} =0\\t(5-4.9t)=0\\ \ dividing\ both\ sides\ by\ t\ we \ get\\ 5-4.9t=0\\4.9t=5\\t=\frac{5}{4.9}\\ t=1.020s

it will take t=1.020s to reach the ground if he jumps on the Earth

3 0
3 years ago
Find the coordinates of the midpoint of the segment given its endpoints F(2,-6) and G(-8,5)
Bess [88]

Step-by-step explanation:

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8 0
3 years ago
The sum of three numbers is 123. The third number is 4 times the first. The second number is 9 more than the first. What are the
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

Let the first number = x

Let the second number = x + 9

Let the third number = 4x

Together they make 123

x + x + 9 + 4x = 123              combine the left

6x + 9 = 123                         Subtract 9 from both sides

6x = 123 - 9

6x = 114                                 Divide by 6

x = 114/6

x = 19

=================

First number = 19

Second number = 19 + 9 = 28

Third number = 4*19 = 76

8 0
3 years ago
Triangle TRI has a base of m centimeters and a height of n centimeters. Rectangle RECT has a length of n centimeters and a width
hram777 [196]
The area of the triangle is 
a=( m x n) /2  in cm² , implies   2xa = m xn
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A= n x m  in cm²
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7 0
4 years ago
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