Answer:
Step-by-step explanation:
dy/dx = -32x + 200
maximum height when dy/dx = 0
-32x + 200 = 0
x = 6.25 seconds
y = -16·6.25² + 200·6.25 + 82 = 707 feet
find the radius of the circle. please.
Answer:
12in
Step-by-step explanation:
2r = 24
r = 12
Answer:
12 in.
Step-by-step explanation:
The radius is half of the diameter.
r = d/2
r = 24/2
r = 12
Express as a trinomial. (2x+5)(3x-4)
Answer:
[tex]6x^{2} + 7x - 20[/tex]
Step-by-step explanation:
Find the value of x.
p(x)=x^4 -2x^3 -11x +12x+36
The process of solving for all zeros (by hand) of the polynomial (work page)
The list of all solutions
The domain and range of the function
The end behavior of the function
The intervals for which the function is increasing and decreasing
Local Maximum(s)
Local Minimum(s)
x=−2x=-2 (Multiplicity of 22)
x=4x=4 (Multiplicity of 11)
Find the equivalent ratio. Fill in the missing numbers
Answer:
a=4
b=20
c=16
d=145
e=40
Step-by-step explanation:
someone help I don't know this trig question
Answer:
Bill is 9.80 km apart from Concert
Step-by-step explanation:
It's given in the question,
m∠B = 75°
m∠C = 45°
By triangle sum theorem,
m∠A + m∠B + m∠C = 180°
m∠A + 75° + 45° = 180°
m∠A = 180° - 120°
m∠A = 60°
By sine rule,
[tex]\frac{\text{sin}(\angle A)}{BC}=\frac{\text{sin}(\angle C)}{AB}[/tex]
[tex]\frac{\text{sin}(60)}{BC}=\frac{\text{sin}(45)}{8}[/tex]
BC = [tex]\frac{8\text{sin}(60)}{\text{sin}(45)}[/tex]
= 9.80 km
Therefore, Bill is 9.80 km apart from Concert.
helppppp pleaseeeee im giving 15 for this ;^;
im in dire need for multiple questions. this is 4/5
Answer:
This should be -5
Step-by-step explanation:
The function is f of x
Substitute 0 for x
the equations hould now be
f(0) = (0 + 5)(0 - 1)
Combine like terms: f(0) = (5)(-1)
Multiply 5 and -1 to get -5
Answer: 0-
Step-by-step explanation:
keep going down. maybe
What is the solution
-3x + y = 2
y = x + 4
Answer:
to find the solution, we substitute y = x + 4 into the other equation.
-3x + (x + 4) = 2
-3x + x + 4 = 2
-2x = 2 - 4
-2x = -2
x = 1
to find y, we substitute x to the x variable in the y equation.
y = 1 + 4
y = 5
therefore, when combined, it is (1,5).
best anwser gets brain select all that apply
7,4 ×10^ -5
.....................
5x + 3y = 6
-3x - 3y = 6
Answer:
(x,y)=(6,-8)
x=6, y=-8
Step-by-step explanation:
There are many was to answer this question, some are substitution and elimination. I am going to use the substitution method.
Your system of equation is 5x+3y=6 and -3x-3y=6
5x+3y=6
-5x -5x
3y=6-5x
Now you substittion the first equation to the sencond one. It will look like:
-3x-(6-5x)=6
-3x-6+5x=6
2x-6=6
+6 +6
2x=12
Divide both sides by 2 and you get
x=6
Now lets substiton x inot the orgianl equation.
-3(6)-3y=6
-18-3y=6
+18 +18
-3y=24
Divide both sides by -3
y=-8
So, the answer is x=6, y=-8
What is the product of 3/8 and 4/9
A. 1/6
B. 1/12
C. 7/17
D. 12/17
Answer:
A.) 1/6
Step-by-step explanation:
3/8 x 4/9 = 12/72 ---> 1/6
If f(x) = 11 - 6(x - 8), what is f(-3)?
Answer:
We conclude that:
[tex]f\left(-3\right)=77[/tex]Step-by-step explanation:
Given the function
[tex]f(x) = 11 - 6(x - 8)[/tex]
Important Tip:
In order to determine f(-3), all we need is to substitute x = -3 in the function equationsubstitute x = -3 in the equation
[tex]f(x) = 11 - 6(x - 8)[/tex]
[tex]f(-3) = 11 - 6(-3 - 8)[/tex]
[tex]f\left(-3\right)\:=\:11-\left(-66\right)[/tex]
[tex]f\left(-3\right)\:=\:11+66[/tex] ∵ Apply rule -(-a) = a
[tex]f\left(-3\right)=77[/tex]
Therefore, we conclude that:
[tex]f\left(-3\right)=77[/tex]if p ≥ q, then -p ≤ -q
Answer:
Yes, that's correct.
Step-by-step explanation:
find a number whose 6 1/4% is 12
Answer: The number is 192
Step-by-step explanation:
Marcus, Alaina, and Tory recorded the number of text messages
they sent on a certain day. Marcus sent 24 text messages, Alaina
sent 8 fewer messages than Marcus, and Tory sent twice as many
messages as Alaina. What is the ratio of the number of texts that Tory
sent to the total number of texts sent by all three friends?
Answer:
Step-by-step explanation:
8?
Help me please I am
so confused
Answer:
Step-by-step explanation:
The midpoint between two points is the average of the coordinates.
mp=((x2+x1)/2, (y2+y1)/2)
In this case we are given one end point and the midpoint.
Just look at the x coordinate first.
If the mid x is 8 and the x from j is 10 we have
(10+x)/2=8
10+x=16
x=6, now for the y for j when y=6 and mid y of 5
(6+y)/2=5
6+y=10
y=4
So the coordinates of K are (6,4)
How many square inches are in 60 square feet?
5 square inches
72 square inches
720 square inches
8,640 square inches
Answer:
8,640
Step-by-step explanation:
One foot is 12 inches, so a square foot would be 144 inches (12×12 -> l×w) So, you would multiply 60 by 144, and you would get 8,640 square inches.
value of π =3.14. Find the area and perimeter of a circle of diameter 4cm
Step-by-step explanation:
If diameter=4cm,then radius=4÷2=2cm
Area of a circle=πr²
=3.14×2²
=3.14×4
=12.56cm²
Per
8. Find the number from the following expanded form: 9 x 10% + 2 x 102 + 3 x 10
(a) 900203
(b) 912351
(C) 905302
(d) 900230
Answer:
324
Step-by-step explanation:
Step 1: Multiply: 9 * 10 =90
Step 2: Multiply: 2 *102 =204
Step 3: Multiply: 3 * 10
Step 4: Add: 90 + 204 + 30 = 324
Hope this helps.
PLZ PLZ PLZ ANSWER THIS QUESTION!!!!!!!
Answer:
d
Step-by-step explanation:
Find x+y, if: 2x+3y=8 and 3x+5y=13
What is XY? .........................
Answer: B i guess
Step-by-step explanation:
The hypotenuse side XY of given right angle at Z is [tex]5\sqrt{2}[/tex].
Given that in triangle XYZ :
∠X=45°
∠Y=45°
XY=5
And right angled at Z, that is, ∠Z=90°.
Since, ∠X=∠Y=45°
Therefore, XZ=YZ=5
Now,
[tex]\sin \theta = \dfrac{hypotenuse}{opposite}[/tex].
Here, θ=45°.
Therefore,
[tex]\sin \theta=\dfrac{5}{XY}\\\\\sin 45\°^=\dfrac{5}{XY}\\\dfrac{1}{\sqrt{2} } =\dfrac{5}{XY}\\\\XY=5\sqrt{2}[/tex]
Thus, the side XY=[tex]5\sqrt{2}[/tex].
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I don’t know if it’s true or false I need help
Answer:
True
Step-by-step explanation:
x+y=14
2x+3y=30
How do I determine which method is used for this and what is it? (Thorough explanation please)
Answer:
x = -18
y = 4
Step-by-step explanation:
x + y = 4
2x + 3y = 30
You can do any math operation to each side of the equal sign as long as you do the same operation to both sides.
change x + y = 4 to x = 4 - y
Now substitute (4 - y) into the second equation, in place of x.
2(4-y) + 3y = 30
multiply the 2(4-y) part:
8 -2y + 3y = 30
simplify:
8 + y = 30
subtract 8 from each side:
y = 22
now substitute the value of y back into the first equation to solve for x:
x + 22 = 4
subtract 22 from both sides:
x = -18
Check:
x + y = 4
22 -18 = 4
4 = 4 (this checks)
2(-18) + 3(22) = 30
-36 + 66 = 30
30 =30 (this checks also)
PS: you could have solved for y first if you had wanted to. The results would be the same.
amit deposited Rs.5000 in a bank which pays 8% per annum interest deposit . how much interest will he get at the end of 4 years also find the amount
Step-by-step explanation:
Hope it helped
pls mark BRAINLIEST
If all the areas on the spinner are the same size, what is the probability the spinner will land on a circle?
75%
50%
12.5%
25%
Answer:
50
Step-by-step explanation:
Answer: 50%
Step-by-step explanation:
Find the sum of -7x^2-6x+9−7x 2 −6x+9 and -3x^2-x+7−3x 2 −x+7. show work
Let's simplify step-by-step.
−7x2−6x+9−7x2−6x+9
=−7x2+−6x+9+−7x2+−6x+9
Combine Like Terms:
=−7x2+−6x+9+−7x2+−6x+9
=(−7x2+−7x2)+(−6x+−6x)+(9+9)
=−14x2+−12x+18
Answer:
=−14x2−12x+18
Let's simplify step-by-step.
−3x2−x+7−3x2−x+7
=−3x2+−x+7+−3x2+−x+7
Combine Like Terms:
=−3x2+−x+7+−3x2+−x+7
=(−3x2+−3x2)+(−x+−x)+(7+7)
=−6x2+−2x+14
Answer:
=−6x2−2x+14
Answer: -10x^2-7x+16
Step-by-step explanation: (-7x^2-6x+9)+(-3x^2-x+7)
-7x^2-6x+9-3x^2-x+7
Nothing to distribute.
Combine like terms:
Final Answer: -10x^2-7x+16
WILL GIVE BRAINLIEST IMMEDIATELY!!! INSTANT BRAINLIEST!!!!!!!1
I ONLY NEED STATEMENT 7's REASON!!! SEE PHOTO
PUT ANSWER TO STATEMENT 7:
it is either SSS, SAS, ASA, or AAS
5. Consider the figure below.
Given: Parallelogram SUPN, SR ⊥ UN and MP ⊥ UN
Prove: ΔPMU ≅ ΔSRN
Answer: Lol, do your homework.
Answer:
SAS
Well I took geometry last year so I don't know how to explain it well but when you move from each Angle/Point it wouldn't make sense for it to be SSS, or AAS, or any other one since there is only one given angle which is 90 degrees and its in between the sides.
Find the circumference and the area of a circle with radius 6 km.
Write your answers in terms of it, and be sure to include the correct units in your answers.
Answer:
Circumference: 12pi or 37.7
Area: 36pi or 113.1
Step-by-step explanation:
C = 2(pi)r
C = 2 * pi * 6
C = 12pi or 37.7
A = (pi)r^2
A = pi * 6^2
A = 36pi or 113.1
Brainliest to whoever answers first!!!Z'(5, -7) is the image of Z after a reflection
in the line y=x. What are the coordinates
of Z?
Answer:
I think its Z (-5, 7)
Step-by-step explanation:
Here :)
The coordinates of Z is (7, -5).
Given that, Z'(5, -7) is the image of Z after a reflection in the line y=x.
We need to find the coordinates of Z.
What is the reflection in the line y=x?When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed). the line y = x is the point (y, x). the line y = -x is the point (-y, -x).
So, the coordinates of Z become (7, -5).
Therefore, the coordinates of Z is (7, -5).
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