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lyudmila [28]
3 years ago
11

Which of the following is a true statement?

Mathematics
1 answer:
Radda [10]3 years ago
3 0
A. False
B.False
C. True
D. False
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Arrange the equations in the correct sequence to rewrite the formula for displacement, d = vt—1/2at^2 to find a. In the formula,
Murljashka [212]

Answer:

a = \frac{2(vt-d)}{t^{2} }

Step-by-step explanation:

Given the formula for calculating the displacement of a body as shown below;

d = vt - \frac{1}{2} at^{2}

d = displacement

v = final velocity

a = acceleration

t = time

To make the acceleration a the subject of the formula, the followin steps must be taken;

Step 1: Subtract vt from both sides of the equation

d-vt = vt-vt-\frac{1}{2}at^{2} \\ d-vt = -\frac{1}{2}at^{2}\\2(d-vt) = -at^{2}

Step 2: Divide both sides by t²

\frac{2(d-vt)}{t^{2} } = \frac{-at^{2} }{t^{2} } \\a = \frac{-2(d-vt)}{t^{2} }

a = \frac{2(vt-d)}{t^{2} }

6 0
3 years ago
What is the inverse of y=(x+3)2<br><img src="https://tex.z-dn.net/?f=y%20%3D%20%28x%20%2B%203%29%20%7B%20%7D%5E%7B2%7D%20" id="T
dolphi86 [110]
Switch x and y
So
x =  {(y + 3)}^{2}

Solve for y
\sqrt{x}  = y + 3 \\ y =  \sqrt{x}  - 3
Inverse is
{f}^{ - 1} (x) =  \sqrt{x}  - 3
8 0
3 years ago
Read 2 more answers
Which number makes this equation true?<br><br>5 x (3 x 2)= 5 x ?
Bond [772]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
What is 3/7 in simplest form
Yuki888 [10]
We cannot simplify it because the denominator does not have a common factor with the numarator. 
6 0
3 years ago
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2) A cake in the shape of a circus tent is used as a centerpiece at a celebration. The cake consists of a cylinder and a cone.Th
zavuch27 [327]
<span>You have:
 
 - The diameter of the cylinder is 12 inches and its height is 14 inches.
 -The height of the cone is 6 inches.
 
 So, you must apply the formula for calculate the volume of the cylinder a the formula for calculate the volume of a cone. 
 
 V1=</span>πr²h
 <span>  
 V1 is the volume of the cylinder.
 r is the radius.
 h is the height (h=14 inches)
 
 The problem gives you the diameter, but you need the radius, so you have:
 
 r=D/2
 r=12 inches/2
 r=6 inches
 
 When you substitute the values into the formula, you obtain:
 
 V1==</span>πr²h
 V1=(3.14)(6 inches)²(14 inches)
 V1=1582.56 inches³<span>
 
 The volume of the cone is:
 
 V2=(</span>πr²h)/3
<span> 
 V2 is the volume of the cone.
 r is the radius (r=6 inches)
 h is the height of the cone (h=6 inches).
 
 Then, you have:
</span> 
 V2=(πr²h)/3
 V2=(3.14)(6 inches)²(6 inches)/3
 V2=226.08 inches³
<span> 
 Therefore, </span>the volume of the cake<span> (Vt) is:
 
 Vt=V1+V2
 Vt=</span>1582.56 inches³+226.08 inches³
<span> Vt=1808.6 inches</span>³
8 0
3 years ago
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