answer my question please and i will mark you as a brainliest, i promise trust me
Answers
Answer:
60
Step-by-step explanation:
AB is 4 of 5 parts BC is i of 5 parts
75 divided by 5 = 15
75 minus 15=60
Related Questions
Solve S= 2ab + 2bc + 2ac for b.
A) s-4a/c
B) s/2(a+c)
C) s/a+b+c
D) s-2ac/2a+2c
Answers
Answer:
D) s-2ac/2a+2c
Step-by-step explanation:
[tex]s = 2ab + 2bc + 2ac \\ s - 2ac = b(2a + 2c) \\ \huge \red{ \boxed{ b = \frac{s - 2ac}{2a + 2c} }}[/tex]
What is the difference between qualitative and quantitative
Answers
Answer:
Step-by-step explanation:
There are two general types of data. Quantitative data is information about quantities; that is, information that can be measured and written down with numbers. Some examples of quantitative data are your height, your shoe size, and the length of your fingernails.
f(x) = -7x2 + 8x + 2
What is the value of the discriminant of f?
How many x-intercepts does the graph of f have?
Answers
Answer:
120
2 real intercepts
Step-by-step explanation:
f(x) = -7x^2 + 8x + 2
The discriminant is
b^2 -4ac
where ax^2 +bx+c
a=-7 b =8 c=2
The discriminant is
8^2 - 4(-7) (2)
64 +56
120
This will have 2 real x intercepts because 120>0
Answer:
120 ; Two
Step-by-step explanation:
-7x2 + 8x + 2
B² - 4AC
8² - 4(-7)(2)
64 - (-56)
120
Since 120 > 0, the graph will have two distinct x-intercepts
An object is launched straight into the air. The projectile motion of the object can be modeled using h(t) = 96t – 16t2, where t is the time since launch and h(t) is the height in feet of the projectile after time t in seconds. When will the object be 144 feet in the air? When will the object hit the ground?
Answers
Answer:
first one is 3 seconds second one is 6 seconds
Step-by-step explanation:
The object will hit the ground in 3 seconds.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
The given function is h(t)=96t-16t².
The object be 144 feet in the air.
144=96t-16t²
144=16(6t-t²)
t²-6t+9=0
By splitting middle term method, we get
t²-3t-3t+9=0
t(t-3)-3(t-3)=0
t-3=0
t=3
Therefore, the object will hit the ground in 3 seconds.
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Marina wants to install security cameras in her store, which has dimensions 48 feet by 48 feet. Each camera can view an area of approximately 128 ft2, with a viewing area shaped like a right triangle. The distance between grid lines is 4 feet. The viewing area of a camera is shown on a grid. The grid is 48 feet by 48 feet, with each square having side lengths of 4 feet. The camera has a triangular viewing area of 128 feet squared. The right triangle has 2 side lengths of 16 feet. How many cameras will be necessary to cover the entire store? 6, 9, 12, 18
Answers
She would need 18 cameras
Answer:
18
Step-by-step explanation:
What is mean of data round to nearest tenth
Answers
Answer:
C) 5.8
Step-by-step explanation:
75/13 = 5.7692
rounded = 5.8
Hope this helps!
Which statement describes the domain of the function f (x) = StartFraction 3 x Over 4 x squared minus 4 EndFraction?
all real numbers
all nonzero real numbers
all real numbers except x = Three-fourths
all real numbers except x = –1 and x = 1
Answers
Answer:
D
Step-by-step explanation:
i just used desmos, never touches x=1 or x=-1
The domain of a function is the set of x values for which it is defined. The correct option is D.
What is the domain and range of a function?The domain of a function is the set of x values for which it is defined, whereas the range is the set of y values for which it is defined.
To find the domain of the function it needed to be simplified. Therefore, the function can be rewritten as,
[tex]f(x) = \dfrac{3x}{4x^2-4}\\\\f(x) = \dfrac{3x}{4(x^2-1)}[/tex]
As it can be seen that for the fraction of the value of x is kept -1 or 1, then the denominator of the function will become zero, which is undefined.
Hence, the domain of the given function is all real numbers except x = –1 and x = 1.
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What is the answer to the file attached
Answers
Answer:
(2x)^4 - (3y)4
Step-by-step explanation:
using this identity a^2 - b^2 = (a + b )(a - b)
=(4x^2)^2 - (9y^2)^2
=(2x)^4 - (3y)4
please help me with this question. "line segment AB is drawb on the grid with endpoints A(0,8) and B(6,0). Using only a straightedge and the grid itself divide AB into 4 congruent segments. Explain how you did this and why it works" please explain too
Answers
Answer:
10/4
Step-by-step explanation:
We can use the pythagorem theorem to solve for what is AB
6^2+8^2= c^2
36+64= c^2
100=c^2
c= 10= AB
Since we know that AB is 10 then we can divide it by 4
10/4
Which expression has a value closest to 1 ? (Use 3.14 as the value of pi.)
A. 7pi/square root of 10
B. square root of 75 - square root of 74
C. square root of 37 - square root of 26
D . 3 and the square root of 5 - square root of 20/ square root of 2
Right answers only
Answers
Answer:
C
Step-by-step explanation:
Answer:
the answer is C
Step-by-step explanation:
Hanah's necklace is 10 1/5 inches long.Erin's necklace is 2 2/3 times as long. About how long erin's necklace
Answers
Answer:
I think it's 2.7 but I'm not sure
Suppose the point (a, b) lies in the first quadrant. Describe how you would move
from the point (a,b) to the point (a, -b).
Answers
Answer:
To move from (a, b) to (a, -b) move down 2b. The point (a, -b) would be in quadrant 4 and would be a reflection across the x-axis of the point (a, b)
Step-by-step explanation:
Which sequence of transformations would yield a triangle similar to the original triangle but not congruent?
A) rotation and dilation
B) reflection and rotation
C) translation and rotation
D) reflection and translation
Answers
Answer:
dilation and rotation.
Step-by-step explanation:
I don’t know how to solve this please help I’ll give you 60 points
Answers
Answer:
x=58
FDE=61
Step-by-step explanation:
Since FDA and ADC are supplementary angles, their angle measures add up to 180 degrees. You can therefore write down the following equation:
2x+3+x+3=180
3x=174
x=58 degrees
FDE=ADC= x+3=61 degrees. Hope this helps!
Which expression is equivalent to 3b-1?
5b+3-6-6-4
5b+3-2b-5
26-5+b-4
b+b-5-5b+4
Answers
5b+3-b-b-4
Explanation:
First, you’ll do 5b-b-b which will become 5b-2b and equals 3b. Then 3-4 equals -1.
When simplified, you get 3b-1
The product of 21 and a number u is at most 126
Answers
Answer:
21u is less than or equal too 126
Step-by-step explanation:
Final answer:
The inequality 21u ≤ 126 is solved by dividing both sides by 21, resulting in u ≤ 6.
Explanation:
The product of 21 and a number u is at most 126 can be expressed as an inequality: 21u ≤ 126. To solve for u, we divide both sides of the inequality by 21, the coefficient of u. Doing so, we find that u ≤ 6. Therefore, the number u can be any number less than or equal to 6 so that the product of 21 and u does not exceed 126.
Marion and her sister Elaine are saving up to buy a DSLR camera. Marion has saved up $ 299.99 in her account. Elaine sets aside her weekly allowance over a five week period to buy the camera that costs $699.99. Calculate Elaine’s weekly allowance.
Answers
Answer:
$80.00
Step-by-step explanation:
If you round up the values, you should evaluate to the following:
Marion/Elaine have $300.00
Marion/Elaine need $700.00
Subtract them from each other and that equals $400.00 dollars that they need.
Since it is a 5 week period this is over, you can divide 400 by 5, what do you get? $80.00
2x(-2x-3)
I’d like some help on this
Answers
Answer:
the answer is 12
Step-by-step explanation:
2 x ( − 2 x ) + 2 x ⋅ − 3
Simplify the expression.
− 4 x 2 − 6 x
Answer:
X^2-6x
Step-by-step explanation:
2x times -2x is 0 which is x^2
2x times -3 is -6x
Solve for z-
-0.25z = -1.25
z = ___
Answers
Answer:
5
Step-by-step explanation:
The value of z in the equation -0.25z = -1.25 is simplified to z = 5.
To solve for z in the equation -0.25z = -1.25, we need to isolate z by performing the necessary operations.
We can start by dividing both sides of the equation by -0.25 to cancel out the coefficient of z:
-0.25z / -0.25 = -1.25 / -0.25
This simplifies to:
z = 5
Therefore, the value of z in the equation -0.25z = -1.25 is z = 5.
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What is the sum of infinity sigma n = 1 2 (1.5)^n-1
Answers
Answer:
S= 5/2
Step-by-step explanation:
Answer:
ITS D YALL JUST TOOK THE TEST 2021
Step-by-step explanation:
Which statements are true about a triangular pyramid? Check all that apply. It has exactly two faces that are triangles. It has exactly three faces that are triangles. It has exactly four faces that are triangles. It has 4 vertices. It has 5 faces. It has 6 edges.
Answers
Answer:
It has exactly 4 faces that triangles.
Step-by-step explanation:
Answer:
it has exactly four faces
it has four vertices
has six edges'
Step-by-step explanation:
The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found?
A.Use the distance formula to find the length of each side, and then add the lengths.
B.Use the slope formula to find the slope of each of side, and then determine if the opposite sides are parallel.
C.Use the slope formula to find the slope of each of side, and then determine if the consecutive sides are perpendicular.
D.Use the distance formula to find the length of the sides, and then multiply two of the side lengths.
Answers
Answer:
Its A!!!! trust me
Step-by-step explanation:
Mary earns $5 per hour as a waitress. Last week she took home her regular earnings of $5 per hour plus $182 in tips for a total of
$302. How many hours did Mary work last week?
O A. 22
B. 26
C. 24
.D.
29
Answers
(302-182) /5= 24
Given the following exponential function, what is the initial amount y 60(1.71)^x?
Answers
Answer:
60
Step-by-step explanation:
The initial y value can be found by setting x to 0. Anything to the power of 0 is 1, so 1.71^x when x is 0 is just 1. 60*1=60, which is the initial y value. Hope this helps!
The initial amount 'y' of the exponential function [tex]y = 60(1.71)^x[/tex] is 60. This value represents the function's y-intercept, the amount present before any exponential growth occurs.
The student has provided an exponential function and wishes to know the initial amount, which can be expressed as 'y' in the function [tex]y = 60(1.71)^x[/tex]. The initial amount when x=0 is the coefficient of the exponential term. For this function, when x equals 0,[tex](1.71)^0[/tex] is 1, since any number raised to the power of 0 is 1. Therefore, the initial amount or the y-intercept of this function is 60.
This value represents the starting quantity before any growth (or decay if the base were less than 1) has occurred in the context of the function. It is important to note that the base of the exponential function (1.71 in this case) indicates the rate of growth per unit increase of the variable x
What term should be added to y2-14y to make it a perfect square
trinomial?
Answers
Answer:
49
Step-by-step explanation:
Given the monomial y²-14y, in order to make the binomial a perfect square, we need to add a constant to the function using completing the square method.
To get the constant, we will multiply the coefficient of y by 1/2 and then square the resulting value.
- The coefficient of y is -14.
multiplying the coefficient of y by 1/2 will give -14/2 = -7
- squaring -7 will result in (-7)²
= 49
The constant that will be added to the binomial to make it a perfect square trinomial is 49
The function f(x) is given by the set of order pairs.
{(1,0) (-10,2), (0,6) (3,17),(-2,-1)}
Which equation is true?
f(-10) = 1
f(2) = -10
f(0) = 6
f(1) = - 10
Answers
Answer:
option a)
Step-by-step explanation:
mark my answer thank you!
Answer:
The correct answer is f(-10)=1
I hope I helped!! :)
What are the values of m and e in the diagram below?
Answers
PLEASE HELP
a company designs a new logo to be painted on a wall in the lobby of its office building. the dimensions are shown below what is the area of the logo.
Answers
The answer is 15 square ft
Answer:
15 square feet
Step-by-step explanation:
In right triangle abc shown below what is the degree measure /_C
Answers
1. The students in Mr. Anderson's
math class earned these scores on
a test: 96, 49, 72, 89, 76, 82, 89.
Find the mean score.
Answers
Answer:
maybe you can mulitply sorry if im wrong im also struggling :(