Consider the derivation of the quadratic formula below. What is the missing radicand in Step 6?
A. b^2-4ac/4a
B. b^2+4ac/4a^2
C. b^2-4ac/4a^2
D. b^2+4ac/4a
How is this number written in scientific notation? 0.001429 a. 1.429 x 10^3 b. 1.429 x 10^2 c. 1.429 x 10^-3 d. 1.429 x 10^-2
Answer:
1.429 × 10^ − 3
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
I hope this helps! Have a great day!
There are 20 blue dye 6 red dye and 14 green dye what is the probability of me selecting the green dye
90 points!
Answer:
35%
Step-by-step explanation:
14 green / 40 total
Answer:
[tex]\boxed {\boxed {\sf \frac{7}{20} \ or \ 35 \% }}[/tex]
Step-by-step explanation:
Probability tells us how likely something is to occur. It is found by dividing the favorable outcomes by the total outcomes.
[tex]P=\frac{favorable \ outcomes}{total \ outcomes}[/tex]
In this question, a favorable outcome is selecting a green dye. The total outcomes are all the dyes.
Favorable outcomes (green dye): 14 Total outcomes (all dyes): 20 blue+ 6 red+14 green=40[tex]P(green \ dye)=\frac{14}{40}[/tex]
Reduce the fraction. Both the numerator and denominator can be divided by 2.
[tex]P(green \ dye) =\frac{14/2}{40/2}[/tex]
[tex]P (green \ dye)=\frac {7}{20}[/tex]
This is the probabilty as a fraction. It can also be written as a percent. Divide the fraction, then multiply by 100.
[tex]P(green \ dye)=\frac{7}{20}*100[/tex]
[tex]P(green \ dye)=0.35 *100[/tex]
[tex]P(green \ dye)=35 =35 \%[/tex]
The probablity of selecting a green dye is 7/20 or 35%
Find the value of x.
Answer:
x=19
Step-by-step explanation:
you do 180-123 because angles on a straight line add up to 180
this gives you 57
then you divide this answer by 3 which gives you the answer of x
URGENT!!!! 30 POINTS please solve
Answer:
Sorry i got here late to answer
Step-by-step explanation:
Please I need help :)
Answer:
Step-by-step explanation: 3,-1?
MAJOR GRADE TEST I NEED NUMBER 2
Uh, what is the question?
Answer:
I see no picture or question.. :0 - Lily ^_^
Step-by-step explanation:
select ALL following units that could be used for area
a. mL^2
b. cm^3
c. ft^2
d. mi^2
Answer: Both B and C
Step-by-step explanation:
ill give brainliest + 50 points
Find the amount of savings in each instance
Answer:
See belowStep-by-step explanation:
Use formula:
P*(1 + r/n)^(nt)P- invested amount, r- interest rate, n- number of compounds a year, t- number of yearsQ1. r = 5% = 0.05, n = 2, t = 1
$1000*(1 +0.05/2)^2 = $1050.63Q2. r = 5% = 0.05, n = 4, t = 1
$1000*(1 + 0.05/4)^4 = $1050.95Q3. r = 5% = 0.05, n = 4, t = 2
$1000*(1 + 0.05/4)^8 = $1104.49Q4. r = 8% = 0.08, n = 1, t = 3
$1000*(1 + 0.08)^3 = $1259.71Q5. r = 8% = 0.08, n = 4, t = 3
$1000*(1 + 0.08/4)^12 = $1268.24Note: All results rounded to the nearest cent
please find the answer to this question
Help plsss don’t get it at all
Answer:
Basically what I see is that the first one add 2. they are basically multiplying the original by 2
Which property is illustrated statement 9×1 = 9
HELPPPP RNNN PLEASEEE
Answer:
Step-by-step explanation:
we know the big angle is a right angle or 90°
90= 66+4x-4
solve for x
24 =4x - 4
28 =4x
7=x
:)
15
Step-by-step explanation:
just do 66+4x-4=90
Add. (6x^2-2x)+(5x-7)
answers:
A. 6x^2+3x-7
b. 6x^2-7x+7
c. 11x^2-9x
d. 30x^3-52x^2+14x
Turn 0.059 into a fraction then find the percent
Answer:
59/1000
Step 1: Write down the decimal divided by 1, like this: decimal 1 Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.)
Plzzzzzzzzzzzzzzzz help meeeeeeeeeeeeeeeeeeeeee if u do ill give u a dollar
Abby bought 3 sweaters that each cost the same amount and 1 skirt that cost $15. The items she bought cost a total of $90 before tax was added. Determine which equation could be used to find, x, the cost of each sweater.
A 3x - 15 = 90
B 3x + 15 = 90
C 15 - 3x = 90
D 15x + 3 = 90
Answer:
B
x is the price of the sweater so 3x and add $15 for the skirt which would add up to $90
Answer:
3x + 15 = 90
Step-by-step explanation:
hope this helps!
Which expression is equivalent to 8.6(x – 1) + 8x
Answer:
8.6(x – 1) + 8x = 16.6 x − 8.6
Step-by-step explanation:
A Girl Scout troop uses 15 flashlight batteries on a three-night camping trip. If they are planning a seven-night trip, how many batteries should they bring
Answer:
35
Step-by-step explanation:
15 batteries for 3 nights = 5 batteries for 1 night
? Batteries for 7 nights = 35 batteries for 7 nights
Answer:
They should bring 35 batteries in the camp
Step-by-step explanation:
3 night=15
1 night= 5
7 night=7×5=35
John has $200 in his savings account. He deposits $50 each week. What is the rate of change? I really need help fast!
Answer:
25% increase each week
Step-by-step explanation:
200 divided by 50 = 4
50 + 50 + 50 + 50 = 200 (there is four)
1/4 is 25%
But he deposits which means it adding and its increasing
Answer:
F(x) = 50x + 200
Step-by-step explanation:
50 dollars x weeks. 200 in account
Plz help me!!!!!!!!! Which expression is represented by the model?
A.
B.
C.
D.
Answer:
Im pretty sure its D i had a problem like this as well.
Step-by-step explanation:
Sum numerelor m si n este 350.Numarul n este de 6 ori mai mare decat m.Afla valoarea fiecarui numar.
Răspuns:
m = 50; n = 300
Explicație pas cu pas:
Dat fiind:
Suma numerelor m și n = 350; acesta este ;
m + n = 350 - - - (1)
n este de 6 ori mai mare decât m; acesta este ;
n = 6m - - - (2)
Înlocuind n = 6m în (1)
Astfel ecuația (1) devine
m + 6m = 350
7m = 350
m = 350/7
m = 50
n = 6m
n = 6 * 50
n = 300
Please help me! I'll actually mark Brainliest + lots of points!!!
Answer:
A
Step-by-step explanation:
Write an equation that represents the following statement: 6 less than the product of r and 4 is 2
math
Answer: R x 4 - 6
Step-by-step explanation:
The formula for the area of a triangle is Area = 1 2 × base × height. How much greater is the area of Triangle B than the area of Triangle A? A. 4 cm2 B. 5.9 cm2 C. 11.8 cm2 D. 23.6 cm2
Answer:
Hello your question is not well written hence I will given a general answer with some assumptions
lets assume ; Triangle A : height = 4 , base = 2
Triangle B : height = 6 , base = 4
Step-by-step explanation:
Given data :
Triangle A : height = 4 , base = 2
Triangle B : height = 6 , base = 4
Area of triangle = 1/2 bh
Area of triangle of A = 1/2 * 2 * 4 = 8/2 = 4 cm^2
Area of triangle of B = 1/2 * 6 * 4 = 24/2 = 12 cm^2
Hence the area of triangle B is greater than triangle A by
= 12 - 4 = 8cm^2 ( apply the same principle to the complete question and you will get your answer )
A volleyball player’s serving percentage is 75%. Six of her serves are randomly selected. Using the table, what is the probability that at most 4 of them were successes?
A) 0.297
B) 0.466
C) 0.534
D) 0.822
Answer:
B
Step-by-step explanation:
0.466
Answer:
B
Step-by-step explanation:
Rotate point H 90 degrees counterclockwise about the origin. What is the algebraic expression?
a (x ,y) --- (-y, x)
b (x, y) --- (x, -y)
c (x, y) --- (y, -x)
d (x, y) --- (-x, -y)
What can be inferred from both the passage and the illustration?
A.
Jo is more concerned with love than money.
B.
Mr. Bhaer wants to be sure of Jo's feelings.
C.
Jo and Mr. Bhaer have a close relationship.
D.
Mr. Bhaer is going to propose marriage to Jo.
Answer:
Answer is C.
Step-by-step explanation:
I hope it's helpful!
Answer:
C.Jo and Mr. Bhaer have a close relationship.
Step-by-step explanation:
3
3111, -4
3. QR with endpoints Q(0,5) and R(6, 7).
4. JK with endpoints J(1,-4) and K(9, 3).
Help me please
The answers are (3,6) and (5,-0.5)
See the picture for the work. The underlined portion at the top is the formula for finding the midpoint
Edward deposited $9,500 into a savings account 3 years ago. The simple interest rate is 4%. How much money did Edward earn in interest?
PLSSS HELPP I GIVE BRAINLIEST
Answer:
Between $10,000-$10,500
Step-by-step explanation:
Identify the pair of lines as parallel, perpendicular, or neither.
y=-3
y=0
A) Neither
B) Parallel
C) Perpendicular
Answer:
Parallel
Step-by-step explanation:
The slopes are the same, they are both 0.
