Answer:3
Step-by-step explanation:
Given
Quadratic equation is [tex]x^2-4+k=0[/tex]
if one root exceeds the other by two
suppose one of the roots is a, then the other is a+2
The Sum of roots is
[tex]=\dfrac{-\text{coefficient of x}}{\text{coefficient of }x^2}[/tex]
[tex]\therefore a+a+2=-\dfrac{-0}{1}\\\\\Rightarrow 2a+2=0\\\Rightarrow a=-1[/tex]
Product of roots
[tex]\Rightarrow (a)(a+2)=\dfrac{k-4}{1}\\\Rightarrow (-1)(1)=k-4\\\Rightarrow k=4-1=3[/tex]
HELPPPP HELPPP IM GOING TO FAILLL
Answer: A is the answer
Step-by-step explanation:
Helllohello help please if you want -
3(7d + 4e) = 3 • 7d + 3 • 4e = 21d + 12e
Lin and Kal's ages add up to 41 Lin is 5 years older than Kal. Use the equation from the to find their ages.
Jordan baked 4 apple pies. She wants to share them equally among 3 of her neighbors. What fractional part of the pies will each neighbor get?
A. 3/7
B. 3/4
C. 1 1/3
D. 2 1/3
Answer:
C.
Step-by-step explanation:
1 1/3 as an improper fraction is 4/3.
Please make me the brainliest
Jessica paid $23,000 for her car. The value of the car depreciates at a rate of 15% each year. Which function represents the value of her car each year?
Answer:
Step-by-step explanation:
DOES ANYONE KNOW THE ANSWER
True or False: If two parallel lines are cut by a transversal, each pair of supplementary angles are congruent
Answer:
this is a true. hdudndjfnfjfndbf9
i need help with this..
Answer:
a = 9
Step-by-step explanation:
sin45 = a/9√2
a = 9√2(sin45)
a = 9
A pole that is 12 feet tall casts a shadow
that is 9 feet long. At the same time of
day, how long is the shadow cast by a tree
that is 4 5 feet tall?
find area will mark brainlist
Answer:
I hope this helps you
Step-by-step explanation:
A = 1/2 h (a+b)
= 1/2 × 8 (15+21)
= 1/2 × 36 × 8
= 36×4
= 144
Answer:
29
Step-by-step explanation:
18+15=23 8+21=29
question in pic! will give brainliest! help asap
Answer:
(5x^2+1)(4x-1) is the answer
A company donates to charity every year as its contribution to society. If the company makes a profit in that year, 2/9 of the profit will be allocated for donation. If the company incurs a loss, the company will also allocate 0.05 of the loss for donation. If the company makes a profit of RM43.2 million in a certain year
and incurs a loss of RM2.5 million and RM6.5 million respectively in two consecutive years, calculate the total donations the company would have allocated for charity in those three years.
can someone please help meee
Answer:
RM10.05 million
Step-by-step explanation:
year 1 profit= RM 43.2m yr 2 loss =RM 2.5 myr 3 loss=RM 6.5 mtherefore:
2/9 of 43.2
=9.6m
5/100 of 2.5m
=125,000
5/100 of 6.5m
=325,000
therefore total donations are :
9,600,000+125,000+325,000
=10,050,000
I tried... hope it helps
how do you solve for exterior angle therom
Answer:
The interior angles of a triangle add to 180°:a + b + c = 180°
Angles c and d make a straight angle, which is 180°:d + c = 180°
So d + c equals a + b + c:d + c = a + b + c.
Subtract c from both sides:d = a + b.
Step-by-step explanation:
Plzzzzzzzzzzzzz help me giving 30 points i asked this question too much.
Answer:
$1.90 1 9/10
Step-by-step explanation:
5 1/2= $5.50
5.50+2.60= 8.10
10-8.10= $1.90
Factor the expressions using the GCF 54-30
I'm sorry, but what exactly are the expressions?
If you comment the expression under my answer, I'll edit my answer and actually answer it.
But nobody can answer an expression that doesn't exist-
A roll of ribbon is used to tie 12 gifts which will be given to teachers on Teacher's
Day. Every gift requires a length of 1.85 m. After tying all the gifts, it was found that
2
of the ribbon had been used. The remaining ribbon was cut into 12 pieces of the
3
same length. Calculate the length of each piece of ribbon that had been cut.
someone please help me with this question
Answer:
22.2m
Step-by-step explanation:
1 roll to 12 gifts
one gifts uses 1,85m of ribbon
1,85m is the length
12 × 1.85 = 22.2m
Find the area of AABC with A = (1,3), B = (5, 7), and
C = (6,3).
Answer:
A=L×B
A=1×3
A=3cm²
B=L×B
B=5×7
B=35cm²
C=L×B
C=6×3
C=18cm²
Please help ASAP i don’t know how to do this
Answer:
c = 74
d = 122
a = 58
b = 48
Step-by-step explanation:
C: a triangle always equals to 180, so 48 + 58 - 180 = 74
D: Angels next to each other on a line always equal to 180, so 180 - 58 = 122
A: Alternating interior angles of a parallel line equal to each other, so it would also be 58
B: A line is 180, so C + A - 180 = B, 74 + 58 - 180 = 48
Sandra runs A new personal best in the hundred meter dash her average speed is 7.4 m/s how long to the nearest hundredth does it take her to run the race
Answer:
[tex]13.51\ \text{s}[/tex]
Step-by-step explanation:
[tex]s[/tex] = Average speed of Sandra = [tex]7.4\ \text{m/s}[/tex]
[tex]d[/tex] = Distance Sandra ran = [tex]100\ \text{m}[/tex]
Time is given by
[tex]t=\dfrac{d}{s}[/tex]
[tex]\Rightarrow t=\dfrac{100}{7.4}[/tex]
[tex]\Rightarrow t=13.51\ \text{s}[/tex]
The time it takes Sandra to run the given distance is [tex]13.51\ \text{s}[/tex].
1½–¾ what is the answer to this fraction
Answer:
0.75 or 3/4Step-by-step explanation:
~Convert the mixed numbers into improper fractions
~Then find the LCD (Least Common Denominator) and combine
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GL.
Answer:
3/4
Step-by-step explanation:
1½ = 3/2
3/2 _ 3/4 =
[tex] \ \frac{3 \times 2}{2 \times 2} - \frac{3}{4} [/tex]
[tex] \frac{6}{4} - \frac{3}{4} = \frac{6 - 3}{4} = \frac{3}{4} [/tex]
a recipe requires 2/3 cup of sugar to make one cake what is the maximum number of cakes that can be made using 4 1/2 cups of sugar
Answer:
6
Step-by-step explanation:
2/3, 1 1/3, 2, 2 2/3, 3 1/3, 4
Please help due in 15 minutes!!!!!
Answer:
44ft
Step-by-step explanation:
The formula for circumference is 2 * π * radius and in this case we want to use 3.14 for π and so we do 2 x 3.14 x 7 because the radius is half of the diameter (14) and once you do that you end up getting 43.96 and once you round you get 44ft so you are correct.
1. How many goldfish do you have if 30% of the entire population of 20 fish in your tank are goldfish?
Answer:
6 Goldfish
Step-by-step explanation:
Answer:
66.6 becuz you divide it
A customer buys a CD for $15 and a video game. The customer pays a total of $42.80 for the two items, which includes 7% sales tax. Which equation can be used to find x, the cost of the video game before tax? 0.07 (15 + x) = 42.80 0.07 (42.8 minus 15) = x 1.07 (15 + x) = 42.80 1.07 (42.8 minus 15) = x
Answer:
1.07 (15 + x) = 42.80
Step-by-step explanation:
Given data
CD= $15
Let the cost of the video game be x
The total cost= 15+x
Hence the equivalent expression is
1.07 (15 + x) = 42.80
open bracket
16.05+1.07x= 42.80
42.80-16.05= 1.07x
26.75=1.07x
x= 26.75/1.07
x= 25
Check
7% tax for CD
=0.07*15
=1.05
total =1.05+15
=$16.05
7% tax for Video game
=0.07* 25
=1.75
total =1.75+25
=$26.75
In all
=26.75+16.05
=$42.8
If three the coordinates of a quadrilateral are at A(3,2), B(-4, 2), and C(-4, -1). What are the coordinates of the 4th corner, point D?
(3,-1)
it should shape like a square or rectangle when you plot it
hope it helps !
A fun park charges $10 for admission and then two dollars for every ride. Write a function that determines the amount of money spent, Y, based on the number of rides ridden, X.!! please help ahhh
Answer:
x is I think 5
Step-by-step explanation:
dndjdudjndndjdjdjjd
Due today!!!!!!! Help!!!!!!
Select all of the quadratic expressions in vertex form.
Group of answer choices
(x−2)2+1
x2−4
x(x+1)
(x+3)2
(x−4)2+6
Answer:
All except x2-4 and x(x+1)
Step-by-step explanation:
Standard Form: ax^2 + bx + c
Vertex Form: a(x - h)^2 + k
Hope that helps you!!
HELP ME PLEASE (no links)
Answer:
y = 1.5x
Step-by-step explanation:
We are to find the equation of the straight line
Using the coordinate (0, 0) and (200, 300)
Slope m = 300-0/200-0
m = 300/200
m = 1.5
Since the line pass through the origin, the y intercept is 0
Substitute m = 1.5 and b =0 into y = mx+b
y = 1.5x + 0
y = 1.5x
This gives the required equation
PLEASE HELPPPPPPP ASAPPP
Using PT in the Coordinate System
Find the length of the legs.
(4.4)
(-2,-2)
[?]
Enter the number that
belongs in the green box.
Answer:
6 units
Step-by-step explanation:
distance between (-2,-2) and (4,-2)
distance formula,
√(x2-x1)²+(y2-y1)²
x2=4
x1=-2
y1=-2
y2=-2
putting the values,
√(4+2)²+(-2+2)²
√6²+0²
6 units
Which data set could be represented by the box plot shown below?
Choose 1 answer:
A 2,3,5,5, 7, 7, 8, 10, 11
B 2,3,5,5,6,7,8,8,11
C 2,3,5,5, 6, 7, 8, 10, 11
D 3,3,5,5, 6, 7, 8, 9, 11
A data set which could be represented by the box plot shown above include the following: B. 2, 3, 5, 5, 6, 7, 8, 8, 11.
What is a box plot?In Mathematics, a box plot is sometimes referred to as a box-and-whisker plot and it can be defined as a type of chart that is used for the graphical or visual representation of the five-number summary of a data set with respect to locality, skewness, and spread.
By using the box-and-whisker plot (box plot) shown in the image attached above, the five-number summary for the given data set include the following:
Minimum = 2.First quartile = 4.Median = 6.Third quartile = 8.Maximum = 11.By critically observing the box-and-whisker plots (see attachment), we can logically deduce that it represents all of the five-number summary for 2, 3, 5, 5, 6, 7, 8, 8, and 11.
Read more on box plot here: brainly.com/question/14277132
#SPJ1
Helpppp me pleaseee
Answer:
1 st questions answer is third option
while the answer of other question is 3
Step-by-step explanation:
2nd qestions explanation
put value of x=2 in equation as x-2=0 from equation
(2)^3-6(2)^2+a2+10=2
8-24+a2+10=0
2a=-18+24
2a=6
a=3