PLS ANYONE HELP ASAP!!!!
Find the zeros of the function f(x)=-1.3x^2-15.7x-44.2 . Round values to the nearest hundredth (if necessary).
Answer: [tex]-7.60,\ -4.47[/tex]
Step-by-step explanation:
Given
[tex]f(x)=-1.3x^2-15.7x-44.2[/tex]
The solution of the standard quadratic equation [tex]ax^2+bx+c=0[/tex] has solution
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
Applying the above principle
[tex]\Rightarrow x=\dfrac{15.7\pm\sqrt{(-15.7)^2-4(-1.3)(-44.2)}}{2(-1.3)}\\\\\Rightarrow x=\dfrac{15.7\pm\sqrt{246.49-229.84}}{-2.6}\\\\\Rightarrow x=\dfrac{15.7\pm \sqrt{16.65}}{-2.6}\\\\\Rightarrow x=\dfrac{15.7\pm 4.08}{-2.6}\\\\\Rightarrow x=-7.60,\ -4.47[/tex]
The zeroes of the equation are -7.60, -4.47.
PLEASE HELP ME!! WILL GIVE BRAINLIEST! WORTH 10 POINTS!
The box-and-whisker plot below represents some data set. What percentage of the data values are greater than 40?
Write the powerset of the following sets
a) {3,7,9}
b) {a,{ 1,2}}
c) {p,q,r,s}
Can anyone help me I need to find the area, please help
Answer:
73.46yd²
Step-by-step explanation:
Area of Triangle = ½ * b * h
= ½ * 16 * 19
= 152yd²
Area of Circle= pi * r² = 5² pi = 25 pi = 78.54yd²
area of shaded part= 152 - 78.54
= 73.46yd²
Jada invest $590 in a money market account. Her account pays 7% simple interest. How much interest will Jada earn after 4 years of simple interest? What is the new balance of the account after the four years?
Answer:
165.2
Step-by-step explanation:
7%x4=28
28 percent of 590 = 165.2
a square tile has width of 1/4 foot. how many tiles will fit end to end along a 4 foot wall
16 tiles
8 tiles
4 tiles
1 tile
Answer:
16 tiles
Because there are 4 parts in 4/4 and the if you have 4 of the four parts that is 16.
What is the correct answer?
Answer:
100 sq cm
Step-by-step explanation:
area of the rectangle
10x8=80
area of the triangle
8x5=40/2=20
80+20=100
Coma and death are possible when _____.
alcohol is ingested slowly
the LD50 is kept low
the BAC nears the LD50 of ethyl alcohol
the BAC is 0.15 percent or more
Please help. Find tanX
Answer:
32/24
Step-by-step explanation:
opposite/ adjacent
Answer:
32/24
Step-by-step explanation:
At a football stadium, 4% of the fans in attendance were teenagers. If there were 80
teenagers at the football stadium, what was the total number of people at the
stadium?
Answer:
2000 people
Step-by-step explanation:
4%= 80
2%=40
1%=20
100%= 2000 people
Hope this helped! :)
Answer:
2000 people
Step-by-step explanation:
80:4%
y:100%
[tex]\frac{80}{y} =\frac{4}{100}[/tex]
y × 4 = 80 × 100
4y = 8000
4y ÷ 4 = 8000 ÷ 4
y = 2000
What is the volume of the rectangular prism?
5 cm
6 cm
5 cm
Answer:
5×5×6 = 150 centimeters3
Step-by-step explanation:
find the volume of the shape
Step-by-step explanation:
[tex]\small\mathfrak\red{here \: is \: your \: solution...} \\ \\ \small\mathcal\purple{volume \: of \: hemisphere \: = (2 \div 3)\pi \: r ^{3 \: } .} \\ \\ \small\mathfrak\purple{radius \: of \: hemisphere \: = 6 \: cm.} \\ \\ \small\mathfrak\purple{volume \: of \: hemisphere \: = (2 \div 3)(22 \div7 ) \times 6 {}^{3} .} \\ \\ \small\mathfrak\purple{volume \: = 452.16 \: cm {}^{3} .} \\ \\ \huge\mathfrak\pink{hope \: it \: helps.}[/tex]
During summer, when the snow melts, the water level of the Yukon River increases. If the water level of the river increased by 54 centimeters in 6 days, what is the water level increase rate in centimeters per day
Answer:
7 centimeters per day.
Step-by-step explanation:
28 centimeters / 4 days = 7 centimeters per day
Answer:
9 centimeters per day
Step-by-step explanation:
54 centimeters / 6 days = 9 centimeters per day
What is the area of the figure below?
An airplane travels at a constant speed of 540 miles per hour. How far, in
miles, will the
airplane travel in 20 minutes?
Answer:
27
Step-by-step explanation:
540/20=27
Rewrite the following polynomial in standard form
-x2 + 1 + 2x
Answer:
Simplify terms.
Tap for more steps...
2 x ^3 − 9 x^ 2 + 7 x + 6
Step-by-step explanation:
Calculate the exact value of
7y - 9 = 2(y - 4) + 1
Answer:
Step-by-step explanation:
Distribution comes first, so:
7y-9 = 2y-8+1
Then you simplify:
7y-9 = 2y-7
Then you subtract or add the lowest number with a letter:
5y-9 = -7
Now you get 5y alone, so we add the 9:
5y = 2
Then you divide 5y = 2 by 5
y = 2/5 or .4
Consider the geometric sequence 8,4,2,1,...
Answer:
Its A for the function that represents the geomertric sequence
Data about cell phone usage was collected from 14 different people. The list shoes the number of incoming calls each person received during the month of August. 87, 102, 131, 132, 155, 173, 178, 204, 211, 244, 253, 278, 301, 371, What is the interquartile range of data?
The interquartile range (IQR) of the given data = Upper Quartile (Q3) - Lower Quartile (Q1) = 121.
What is the Interquartile Range of a Data?The interquartile range (IQR) = Upper Quartile (Q3) - Lower Quartile (Q1)
Given the data:
87, 102, 131, 132, 155, 173, 178, 204, 211, 244, 253, 278, 301, 371
Upper quartile (Q3) = 253
Lower Quartile (Q1) = 132
Interquartile range (IQR) of the data = 253 - 132
Interquartile range (IQR) of the data = 121
Learn more about the interquartile range (IQR) on:
https://brainly.com/question/17083142
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Hello I really need help be genuine I don’t want any links ! I really need help I will make brainliest :(
Answer:
28 of the student do not snowboard
Step-by-step explanation:
Help plz. If u know the answer also show work for how you got it plz. Thanks!
Pls help I need to pass
Answer:
Make a graph similar to this picture:
Answer:
make a graph one side being for the -3,-2,-1 and the other for the -2<x<-1?
Step-by-step explanation:
I will give brainliest if you get this right
Answer:
Approximately 8.5 feet
Explanation:
Using Pythagorean Theorem we can say:
6² + 6² = Diagonal²
36 + 36 = Diagonal²
72 = Diagonal²
[tex]\sqrt{72}[/tex] = Diagonal
8.49 (if rounded to the nearest tenths it would be 8.5) = Diagonal
Hope this helps!
The sum of Jane's age and Shell's ages is 37. Jane is 5 years older than Shell. How old is Jane? Ok
Answer:
21
Step-by-step explanation:
because jane is 5 years older and 16 + 5 eaquls 21i had mutiplule choice answers
Truth or False Domain and Asymptote can be the same number.
HELPPPPPPPP MEEEEEEEEEEE
Answer:
12
Step-by-step explanation:
pls help fast i will give brainliest to the first answer i swear
Answer:
Green block= 5x5x5= 125 cm
Flat white block= 1x4x5= 20 cm
Standing white block= 9x3x7= 189 cm
Blue block= 3x4x2.5= 30 cm
The fridge= 174x57=9918 604998 divided by 9918 = 61 d= 61 cm
Step-by-step explanation:
inventa un objeto geométrico, defínelo y expresa cómo lo representarías verbal, simbólica y gráficamente. Da ejemplos que cumplan las condiciones para que sea posible reconocerlo por medio de la definición y no ejemplos.