Answer: 27 x 3 − 270 x 2 + 900 x − 1000
Step-by-step explanation: Expand the expression.
i dont know the answers, can someone help?
Answer:
you are corrcet
Step-by-step explanation:
Find the exact value of each expression.
sin75°
cos(-75°)
Answer:
Step-by-step explanation:
sin 75°
sin(30°+45°)
sin30°*cos45°+cos30°sin45°
1/2*1/[tex]\sqrt{2}[/tex] + [tex]\sqrt{3}[/tex]/2*1[tex]\sqrt{2[/tex]
1/2[tex]\sqrt{2}[/tex]+[tex]\sqrt{3}[/tex]/2[tex]\sqrt{2}[/tex]
1+3/2[tex]\sqrt{2}[/tex]
cos(-75°)
-cos(180°-105°)
-cos(-105°)
cos 105°
cos(45°+60°)
cos45°cos60°-sin45°sin60°
1/[tex]\sqrt{2}[/tex] *1/2-1/[tex]\sqrt{2}[/tex] *[tex]\sqrt{3}[/tex] /2
1/2[tex]\sqrt{2[/tex]-[tex]\sqrt{3[/tex]/2[tex]\sqrt{2}[/tex]
1-[tex]\sqrt{3}[/tex]/2[tex]\sqrt{2}[/tex]
sin(75)
=0.96
cos(-75)
=0.25
hello please help i’ll give brainliest
Answer:
VelocityStep-by-step explanation:
Acceleration is defined as the rate of change of velocity.
Velocity is a vector, which means it contains a magnitude (a numerical value) and a direction.
So the velocity can be changed either by changing the speed or by changing the direction of motion (or both).
Answer:
velocity
Step-by-step explanation:
The definition of acceleration is: Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.
Paul biked 55 miles in 10 hours . what is the unit rate of miles per hour
Answer:
5.5 miles per hour
Step-by-step explanation:
Since he travels a total of 55 miles in 10 hours, you need to divide.
55/10 = 5.5
total hours/total miles = miles per hour
Find the equation of Y+9=13
Answer:
Y = 4
Step-by-step explanation:
Y = 13 - 9Y = 4that's allThe speed of light is about 1.1 x 10^12 meters per hour. What is the number in meters per minute?
Answer:
Mansah obtained 150 mark out of 240 mark in an English test .what was her percentage score
Solve equation by using the quadratic formula.
2x2 - 5x = 7
Let's solve your equation step-by-step.
2x2−5x=7
Step 1: Subtract 7 from both sides.
2x2−5x−7=7−7
2x2−5x−7=0
2x2+−5x+−7=0
Step 2: Use quadratic formula with a=2, b=-5, c=-7.
x=−(−5)±√(−5)2−4(2)(−7)/2(2)
x=5±√81/4
Answer:
x= 7/ 2
or x=−1
the same thing
just answer this pls i need it
Answer:
J is the answer 4 [tex]\frac{5}{6}[/tex]
What are the solutions of the equation? y=-7(x-3)(x+4)
Answer: y=−7x^2−7x+84
Step-by-step explanation: Hope this help :D
pls help i need to know what x/-4 + 6 < 11 is?!?!!?!?!
Answer:
x ∈ ( - ∞ , 20 )
Step-by-step explanation:
Given :
x / 4 + 6 < 11
Adding - 11 both we get:
= > x / 4 + 6 - 11 < 11 - 11
= > x / 4 - 5 < 0
Multiply by 4 both we get:
= > x - 20 < 0
Adding 20 both side we get:
= > x - 20 + 20 < 20
= > x < 20
Solution set x ∈ ( - ∞ , 20 )
Hence we get required answer!
9514 1404 393
Answer:
x > -20
Step-by-step explanation:
This is a "2-step" inequality with a negative coefficient.
x/-4 +6 < 11 . . . . . given
x/-4 < 5 . . . . . . . . subtract 6 from both sides
x > -20 . . . . . . . . .multiply both sides by -4
Because the multiplier is negative, the sense of the comparison must be reversed.
_____
Check
x = -24 should not be in the solution set: -24/-4 +6 < 11 ⇒ 12 < 11 . . . False
x = -16 should be in the solution set: -16/-4 +6 < 11 ⇒ 10 < 11 . . . True
i need help please !!!
Answer:
1. it is given
2. the definition of angle bisector
3. the reflexive property
4. SAS
5. corresponding parts of congruent triangles are congruent
Arafa has collected data on the relationship between physical attractiveness and judgments of personality characteristics. In order to determine if the results obtained from the sample are representative of the population, Arafa will need to employ ________ statistics.
Answer:
Inferential
Step-by-step explanation:
The process of drawing inferences about a population on the basis of information contained in a sample taken from the population is called Statistical Inferences.
In the given question the inferences have to be drawn from the sample which is representative of the population.
So the best answer is inferential statistics.
6.4 ÷ 1.6 of 5 + 1.3 × 3.1 - 0.07
Answer: 23.96
first you gotta put in the parenthese in. (6.4/1.6)x 5+( 1.3x3.1)-0.07.
second: do the Equation in the parentheses.
6.4/1.6=4
1.3x3.1=4.03
4x5=20
20+4.03=24.03
24.03-0.07=23.96 final answer
Hope this helps!!
Marking brainliest
Please help !
-2(+3)+4x-4=-14
solve for x pleaseeee
Answer:
-2(3) + 4x -4 =-14
-6 + 4x -4=-14
4x = -14 + 6 + 4
4x = -4
x=-1
To verify this...Input -1 into the original equation... You'd get -14
Can someone help me with this question pls?
Answer:
[tex]x^{2} - 25[/tex]
Step-by-step explanation:
Area is side x side, so naturally it would be: (x+5)(x - 5)... Though to simplify, those parenthesis can be FOILed. (Reminder: "FOIL" means First - Outer - Inner - Last)
[tex]x^{2} - 5x + 5 x - 25[/tex]
The 5x cancels out because 5x - 5x = 0
So that leaves us with:
[tex]x^{2} - 25[/tex]
=========================================================
Explanation:
Let's say we replace the "x+5" with some other letter. Let's use L for length.
We'll keep the width x-5 the same.
area = length*width
area = L*(x-5)
area = L*x + L*(-5)
area = xL - 5L
At this point, we would then plug in L = x+5 and distribute like so:
area = x( L ) - 5( L )
area = x( x+5 ) - 5( x+5 )
area = x^2 + 5x - 5x - 25
area = x^2 - 25
Side note: (x+5)(x-5) = x^2 - 25 is an application of the difference of squares rule.
Plz help! 20 points, correct answer will be marked brainliest :)
Miguel made 6 bracelets each day to sell at a craft fair. The function f gives the total number of bracelets Miguel made in x days. Which of the following could define f ?
Answer:
D) f(x) = 6x
Step-by-step explanation:
The amusement park is open for 11 hours if approximately 200 people can ride the swing in one hour what is the maximum amount of people that can ride the swing in one day
Answer:
2,200
Step-by-step explanation:
Number of hours amusement park opens = 11 hours
Number of people who ride the swing in one hour = approximately 200
what is the maximum amount of people that can ride the swing in one day?
Number of people that can ride the swing in one day = Number of hours amusement park opens × Number of people who ride the swing in one hour
= 11 × 200
= 2,200 approximately
Number of people that can ride the swing in one day = 2,200
Emmanuel was charged $32 for a 14 2/9 km taxi ride. what was the cost per kilometer
Answer:
$2.25 Per Kilometer
Step-by-step explanation:
Divide the amount of Money that Emmanual Was charged with, And Divide the Amount of Kilometers of the taxi ride.
32 Divided by 14 2/9= $2.25 per Kilometer
Choose all of the sets of points that define non-linear functions.
(-4,0), (-3,3), (-2, 6), (-1,0)
(-4,16), (-2,4), (2, 4), (4, 16)
(-4,-10), (-2,-8), (2, -4), (4, -2)
(-4,-1), (-2, 1), (2,5), (4,7)
Hope This Helps You!!!
Have a great day!!!
This line plot shows the number of fish in different fish tanks.
How many tanks hold more than 3 fish?
Please help! will give brainliesttttt!!!!
Answer:
416
Step-by-step explanation:
Find the circumference and area of the circle. Use 3.14 for π. Round to the nearest hundredth if necessary.
13m.
Answer:
81.64
Step-by-step explanation:
Answer:
Step-by-step explanation:
Please be explicit in labeling the radius. I will assume y ou meant r = 13 m.
Circumference formula: C = 2πr; area formula: A = πr²
Here, with r = 13 m, C = 2π(13 m) = 26π m = C = 81.68 m
and
with r = 13 m, A = π(13 m)^2 = 169π = A = 530.93 m^2
(please help!!)
Once cell phone plan charges $20 per month plus $0.15 per minute used. A second cell phone plan charges $35 per month plus $0.10 per minute used. Write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.
Answer:
x = 300 minutes
Step-by-step explanation:
20 + .15x = 35 + .10x
.05x = 15
I need the answer immediately help please!!!!!
Answer:
y = 5x - 3
Step-by-step explanation:
A car wheel has a diameter of 27.1". How far will the car go when the wheels rotate 100 times?
Answer:
135.5"
Step-by-step explanation:
Answer:
8509.4
Step-by-step explanation:
The diameter has already been displayed so what I could simply do is solve the equation simply by using the formula for circumference using diameter (C=3.14 x 27.1) and that will get me 85.094 but thats how far it will get if it rotates 1 times so we must multiply it by 100 and move the decimal point 2 digits to the right and the final answer is 8509.4. 8509.4 (no mathematical unit) is how far the car can go when the wheels have a diameter of 27.1 and rotates 100 times.what is 6 feet + 4 feet measured to the nearest half foot
Answer
if there is 1 is considered to a half foot that would be the answer. if it is not considered as a half foot then the answer would be 6 inches- 1/2 of a foot
Step-by-step explanation:
A qué distancia del poste de luz debe pararse una persona de 1,60 m de altura para qu su
sombra sea igual a las 3/4 partes de su altura? Se sabe que la altura del poste es de 3 m.
Answer:
udhfbfjjrjrhrhiididie
Suppose you have a die that has 20 sides numbered 1 to 20. What is the probability the
result of a roll is a multiple of 3 or 6?
Answer:
[tex]\frac{1}{10}[/tex]
Step-by-step explanation:
If the dimensions of the following cylinder are doubled, what factor will the surface area change by?
-8 in.
0.5 ft
02
O 8
04
06
Answer:
probably 2 or 4
Step-by-step explanation:
The factor that the surface area changes by is 4, the correct option is C.
How to find the lateral surface area of a cylinder?The lateral surface area of a cylinder is also called the curved surface area of the cylinder.
Suppose that:
Radius of the considered cylinder = 'r' units
Height of the considered cylinder = 'h' units
Then, the lateral surface area of that cylinder is:
[tex]S_L = 2\pi r h \: \rm unit^2[/tex]
We are given that;
The dimensions of the cylinder
Now,
The formula for the surface area of a cylinder is:
SA=2πr2+2πrh
where r is the radius and h is the height of the cylinder. If we double both r and h, we get:
SA′=2π(2r)2+2π(2r)(2h)
Simplifying, we get:
SA′=8πr2+8πrh
Comparing this to the original formula, we can see that the new surface area is four times the old surface area.
Therefore, by the surface area of cylinder answer will be 4.
Learn more about lateral surface area of a cylinder here:
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