Answer: t = 7.85seconds
Step-by-step explanation:
Given that :
Height of tower = 986 Feets
Function s(t) = 16t^2
To find the time t 8 in Seconds taken for an object to fall to the ground from the top of the building
16t^2 = 986
t^2 = 986/16
t ^2 = 61.625
Take the square root of both sides
t = sqrt(61.625)
t = 7.85seconds
Answer:
7.85sec
Step-by-step explanation:
Given that,
s(t)=16t squared, where t is time in seconds. The height of a certain tower is 986 feet.
s(t) = 16t²
so when s = 986feet
16t² = 986 feet
t² = 986 / 16
t² = 61.625
t = √61.625
t= 7.85 seconds
what is the value of n in the equation 4n + 5 = 17
Answer:
n=2
Step-by-step explanation:
4 times 2 equals 12. And 12 plus 5 equals 17.
Answer: n=3
Step-by-step explanation: 4n+5=17
17-5
4n=12/4
N=3
A line is drawn through (-4, 3) and (4, 3). Which describes whether or not the line represents a direct variation?
O The line represents a direct variation because
O The line represents a direct variation because it is horizontal.
O The line does not represent a direct variation because it does not go through the origin.
O The line does not represent a direct variation because -4(3) = 4(3)
Answer:
third option
Step-by-step explanation:
A graph representing direct variation must pass through the origin.
The graph through (- 4, 3) and (4, 3) is a horizontal line and does not go through the origin.
Thus the line does not represent a direct variation because it does not go through the origin.
0.441 to its standard form
Answer:
erm
Step-by-step explanation:
4.41 times 10^-1
What is the inverse of the function f(x) = 2x + 1?
CO
1
h(x) =
Ex-
1
h(x) =
Y+
h(x) =
h(x) =
3x + 2
Save and Exit
Answer:
I am hoping for this to be correct
4sqrt2(sqrt6-3sqrt24)
Answer:
-40\sqrt{3}
-.69.282
Step-by-step explanation:
4(-8x + 5) -(-33x -26)
-4.5(r-2)+3.3 please help
Answer:
-4.5r + 12.3
Step-by-step explanation:
Multiply -4.5(r-2)
-4.5r + 9 + 3.3
Add 9+3.3=12.3
-4.5r + 12.3
Hope this helps plz mark brainliest
Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!
Step-by-step explanation:
Adding 10 to both sides of the original equation gets us q = 6(r + 1) + 10. Since q is equal to h(r), we get h(r) = 6(r + 1) + 10 = 6r + 16.
Find the selling price of an $70 item after a 30% markup.
Answer:
70/100*130= $91
Step-by-step explanation:
Answer:
$91
Step-by-step explanation:
CP= $70
Markup= 30%
SP= $70 +30%= $70*1.3= $91Hannah is putting border on the
walls of her bedroom. Her room
is 14 feet long and 10 feet wide.
She bought 50 feet of border.
Will she have enough for
each wall?
How do you know?
Answer:
yes she will
Step-by-step explanation:
just find the perimeter
14+14+10+10 or (14*2)+(10*2)
the add and you get 48 feet
48<50
Hope this helps
Which equation matches the graph?
A. y - 2= 3(× -2)
B. y - 2= 3(×+2)
C. y + 2= -3(×+2)
D. y - 2= -3(x-2)
pls help ASAP for brainliest answer
Answer:
396cm^3
Step-by-step explanation:
The formula for calculating volume of triangular prism is 1/2×bhl (b: base, h : height, l : length)
1/2 × 9 × 11 × 8 = 396cm^3
Which are vertical angles? Check all that apply. ∠EAB and ∠BAC ∠EAB and ∠CAD ∠CAD and ∠FAE ∠CAB and ∠DAE ∠DAC and ∠DAE
Answer:
<CAB and <DAE are vertical angles
<EAB and <CAD are vertical angles
Step-by-step explanation:
this is because they are formed by the prolongation of the sides of the other angles and are opposite to them on the other side of the vertex.
Options B and D are correct. The vertical angles are ∠CAD and ∠BAE AND ∠EAB and ∠CAD.
Vertical angles are angles that are opposite to each other in line geometry. The size of the angles must be the same.
According to the diagram shown, we can see that ∠CAD and ∠BAE are opposite to each other with similar measures.
This means that both angles are vertically opposite. he same is applicable to ∠EAB and ∠CAD.Hence the vertical angles are ∠CAD and ∠BAE AND ∠EAB and ∠CAD.
Learn more here: https://brainly.com/question/13458452
Combine like terms to create an equivalent expression.
-2/3a+5/6a-1/6
Answer:
The answer is [tex]\frac{1}{6}a - \frac{1}{6}[/tex] .
Step-by-step explanation:
Solve the following equation:
[tex]-\frac{2}{3}a + \frac{5}{6}a - \frac{1}{6}[/tex]
Combine [tex]-\frac{2}{3} a[/tex] and [tex]\frac{5}{6} a[/tex] :
[tex]-\frac{2}{3}a + \frac{5}{6}a - \frac{1}{6}[/tex]
[tex]\frac{1}{6}a - \frac{1}{6}[/tex]
So, the answer is [tex]\frac{1}{6}a - \frac{1}{6}[/tex] .
Answer:
1/6a-1/6
Step-by-step explanation:
Kamal has big feet. Kamal's mom says she wouldn't be surprised if he grew to be 7 feet tall! Kamal's new shoes came in a box that measures 16 inches by 9 inches by 6 inches. What is the volume of the shoebox?
Answer:
864
Step-by-step explanation:
V=lwh
=16×9×6
=864 inches
Answer:
864 is the volume
Step-by-step explanation:
You can find the answer by applying the volume formula Length x Width x Height.
16x9x6= 864
It does not matter in which way you put the order of length, width and height.
which table represents a linear function
Answer:
the forth one is linear
Step-by-step explanation:
If f(x)=2x^2+5 √(x-2)
What does f(3)=?
simplify sqrt of -100
Answer:
There is no answer to any square root to a negative number
Step-by-step explanation:
Please answer as soon as possible, whoever is first gets the brainliest
Answer:
I'm not sure what to do here
Step-by-step explanation:
what is 20 plus 20.
Answer:
Step-by-step explanation:
40
Answer:
40
Step-by-step explanation:
20
20
+-----
zero plus zero is zero
two plus two is four
40
Find the range of p in equation p(x+1) (x-3)=x-4p-2 has no real roots.
Answer:
[tex]\displaystyle p > \frac{1}{4}[/tex].
Step-by-step explanation:
Expand the left-hand side of this equation:
[tex]p\, (x + 1)\, (x - 3) = p\, \left(x^2 - 2\, x - 3\right) = p\, x^2 - 2\, p\, x - 3\, p[/tex].
Collect the terms, so that this quadratic equation is in the form [tex]a\, x^2 + b\, x+ c = 0[/tex]:
[tex]p\, x^2 - 2\, p\, x - 3\, p = x - 4\, p - 2[/tex].
[tex]p\, x^2 - (2\, p + 1)\, x + (p + 2) = 0[/tex].
In this equation:
[tex]a = p[/tex].[tex]b = -(2\, p + 1)[/tex].[tex]c = p + 2[/tex].Calculate the quadratic discriminant of this quadratic equation:
[tex]\begin{aligned}b^2 - 4\, a\, c &= (-(2\, p + 1))^2 - 4\, p\, (p + 2) \\ &= 4\, p^2 + 4\, p + 1 - 4\, p^2- 8\, p = -4\, p + 1\end{aligned}[/tex].
A quadratic equation has no real root if its quadratic discriminant is less then zero. As a result, this quadratic equation will have no real root when [tex]-4\, p + 1 < 0[/tex]. Solve for the range of [tex]p[/tex]:
[tex]\displaystyle p > \frac{1}{4}[/tex].
can someone please help a guy out? and ASAP. i'm really tired and i've been trying to get this done for months but i cannot understand it in the slightest. whoever can help out will get marked as brainliest ♥
[any other info will be linked as images]
-----------------------------------------------------------------------------
1.) Which variable did you plot on the x-axis, and which variable did you plot on the y-axis? Explain why you assigned the variables in that way.
2.) Write the equation of the line of best fit using the slope-intercept formula y = mx + b. Show all your work, including the points used to determine the slope and how the equation was determined.
3.) What does the slope of the line represent within the context of your graph? What does the y-intercept represent?
4.) Test the residuals of two other points to determine how well the line of best fit models the data.
5.) Use the line of best fit to help you to describe the data correlation.
6.) Using the line of best fit that you found in Part Three, Question 2, approximate how tall is a person whose arm span is 66 inches?
7.) According to your line of best fit, what is the arm span of a 74-inch-tall person?
Answer:
1) On the x-axis, the arm span is plotted. On the y-axis, the height is plotted. It is chosen to be that way because the numbers on that have been assigned on the x-axis increase and decrease in a small amount, while the numbers on the y-axis increase and decrease in a huge amount.
2) (lolz i cant show u my work but i will try my best with explanations even tho ian allat.) So, Using the slope formula, I got a the equation y=x+15. The equation was determined with the formula m=y2-y1/x2-x1. The points that were used included (37,40) and (47,50). After finding the slope, I did the best guess for the y-intercept, which is known as b in y=mx+b.
3) The slope of the line represents the time it takes for the arm span and the height. The y-intercept represents the height that the arm span starts developing or gets bigger.
4) It fits perfectly
5) The data is pretty inconsistent.
6) About 68-69 inches tall
7)About 71-72 inches wide
yeo u had my brain work after this
Step-by-step explanation:
Answer:
other person is correct
Step-by-step explanation:
find K if the sum of the zeros of the polynomial x square - (K + 6 ) x + 2( 2 k - 1) is half the product
k=7
given a quadratic polynomial
ax^2+bx+c
the sum of the roots is given by -(b/a)
and the product of the roots as (c/a)
hence we get sum of roots as -(-(k+6)/1) and product of roots as (2(2k-1))/1
since the sum is equal to half the Product then we get
k+6=2k-1 and solving for k we get 7
I need help What is 3x - 4 = 13
Answer:
5 2/3
Step-by-step explanation:
3x-4=13
+4 +4
Add 4 to -4 and 13.
If you add a positive # to a negative one you get a positive number so -4+4 is 0
3x=17
divide 3 and 17
you get 5 2/3
The last 2 questions please help me help me please I need help
Answer:
3. 12.5π + 100
6. 25π + 250
Step-by-step explanation:
3. So you can first calculate the area of the square, which is 100.
Then you have to calculate the semicircle.
You can see that the diameter is 10.
The radius is 5.
The area of the semicircle is 12.5π
Total area is 12.5π + 100
6. You have a one rectangle and two semicircles.
You can calculate the area of the semicircles first.
25π
Then, you have to see how much the width of the rectangle is.
You can see that the total width is 35, and the radius of each semicircle is 5.
35 - 5 - 5 = 25
The width is 25 so the area of the rectangle is 250.
The total is 25π + 250.
szdfxgthyjunmklhjuxcgtfrhyuji
Hi!
The negative signs cancel out iin the equation to make a positive 7.
The 4 is already positive.
So that makes it 4 + 7!
Or 7 +4!
Answer choice A.
Hope this helps!
plz solve ziz m−4+m−5
Answer:
m - 4 + m - 5
= m + m - 4 - 5
= 2m - 9
The answer is 2m - 93x^2-6×=0 solve for x factor if necessary
Answer:
x =0 x=2
Step-by-step explanation:
3x^2 -6x = 0
Factor out a 3x
3x(x -2)=0
Using the zero product property
3x = 0 x-2 =0
x =0 x=2
Someone answer the whole thing fast plz
Answer:
y = 2x + 54
Step-by-step explanation:
slope of equation:
(y2-y1)/(x2-x1)
= (72-58)/(9-2)
= 14/7
= 2
y = 2x + b
58 = 2(2) + b
58 = 4 + b
b = 54
What is the slope of the line that passes through the points (-2,-5) and
(-3, -6)? Write your answer in simplest form.
Answer:
slope = 1
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, - 5) and (x₂, y₂ ) = (- 3, - 6)
m = [tex]\frac{-6-(-5)}{-3-(-2)}[/tex] = [tex]\frac{-6+5}{-3+2}[/tex] = [tex]\frac{-1}{-1}[/tex] = 1
