Answer:
at answer C, that's supposed to be x= -4 , 1 and that's the answer.
x^2 + 3x - 4 = 0
Quadratic formula:
x = -b +- sqrt{b^2 - 4ac}/(2a)
Let a = 1
Let b = 3
Let c = -4
Just plug into the quadratic formula and do the math.
We are looking for x.
x = -3 +- sqrt{3^2 - 4(1)(-4)}/2(1)
x = -3 +- sqrt{9 + 16}/2
x = -3 +- sqrt{25}/2
x = (-3 +- 5)/2
Separate x into two parts.
Part 1
x = (-3 -5)/2
x = (-8)/2
x = -4
Part 2
x = (-3 + 5)/2
x = 2/2
x = 1
Answer: x = -4, x = 1
Find an ordered pair (x, y) that is a solution to the equation.
2x-y=9
Ebony is cutting dough for pastries in her bakery. She needs all the pieces to be congruent triangles and has ensured that EF ON and 2MON is congruent to 2GEF What would
triangles are congruent by AAS?
Answer:
<EFG and <ONM
Step-by-step explanation:
PLEASE ANSWER WITHIN THE NEXT 5 MINUTES!!!!!!! Kara and Steven are biking around a 105 kilometer path. They start biking from the same place, at the same time. Kara bikes at a speed of 15 km/h and Steven bikes at a speed of 30 km/h. How long will it take Steven to be at the same place at the same time with kara.
Step-by-step explanation:
105/30=3.5 hours for steven
105/15=7 hours for Kara.
they would be b at the same place in 7 hours when Kara catches up at 105km lol
Answer:
7 hrs
Step-by-step explanation:
SEE THE IMAGE FOR SOLUTION
HOPE IT HELPS
HAVE A GREAT DAY
Solve for y: 3d = 7y + 5
Answer:
d = [tex]\frac{7y+5}{3}[/tex]
Step by step explanation:
3d = 7y+5
Divide both sides by 3
[tex]\frac{3d}{3}[/tex]= [tex]\frac{7y}{3}[/tex]+ [tex]\frac{5}{3}[/tex]
Simplify
[tex]\frac{7y+5}{3}[/tex]
What 666.983 divided by 978.087 is?
Answer:
0.681926045434
Step-by-step explanation:
Answer:
0.000681926045
Step-by-step explanation:
666.983 ÷ 978.087=0.000681926045
Which inequality has (–2.5, –4.5) as part of the solution set?
Answer:
the answer is c (x+2)^2/16 + (y+6)^2/16 <1
Step-by-step explanation:
on edge 2021 unit test got it right
Answer:
it c
Step-by-step explanation:
The pool table has a height of 7ft. Side one is 18ft and side two is 17ft. What is the area and perimeter?
Answer:
2142
Step-by-step explanation:
just multiply the sides
Can someone help me with this? I am a little confused
PLEASE THIS IS THE LAST QUESTION I HAVE
Answer:
=468 m^2
Step-by-step explanation:
Surface area of a prism is
SA = 2 (lw + wh + hl) where l is length, w is width and h is height
SA = 2 ( 12*6 + 6*9 + 9*12)
= 2 ( 72+54+108)
= 2(234)
=468 m^2
Evaporation and Transpiration
Terminology
- Evaporation - process by which liquid water
passes directly to the vapor phase
Transpiration - process by which liquid water
passes from liquid to vapor through plant
metabolism.
Answer:
well done
Step-by-step explanation:
Help will give brainly of aw ser is right
Answer:
40 is your answer:)
Step-by-step explanation:
4x3= 12
12/2=6
6x4=24
4x4=16
24+16= 40
if you actually know plz give an explanation to the answer so i know you aren't just answering for points, please help this is due before 12:00
Answer:
B
Step-by-step explanation:
There is a 1/4 probability of getting an A out of a bag with letter MATH
For B) There are two A's our of 8 letters is ADMIRALS.
2/8 is the same as 1/4
The answer is B
A) is wrong because that 1/6
C) is wrong because that's 1/8
D) is wrong because that's 2/9
Answer:
B
Step-by-step explanation:
Probability of finding A in a word = number of A / number of letters in that word
Probability of finding A in MATH = 1/4
A. Probability of finding A in BECAME = 1/6
B. Probability of finding A in ADMIRALS = 2/8 = 1/4
C. Probability of finding A in USERNAME = 1/8
D. Probability of finding A in AFTERMATH = 2/9
So we have a match with option B
Let x2
+ 10x = 6.
What values make an equivalent number sentence after completing the square?
Answer:
3/5 OR 0.6
Step-by-step explanation:
VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
Answer:
(80, 120)
Step-by-step explanation:
y - 40 + y = 200
2y = 240
y = 120
x = 120 - 40
x = 80
Hope it helped
Angles c and d are complementary. If angle c is 2x and angle d is 66, what is the value of x?
Answer:
x=12
Step-by-step explanation:
Complementary angles add up to 90 degrees. 90-66=24. 24 divided by 2 is 12.
According to a survey, 78% of residents in Summerville own a home. If 30 residents
are randomly selected, find the probability exactly 24 residents own a home.
Answer:
0.1732 = 17.32% probability exactly 24 residents own a home.
Step-by-step explanation:
For each resident, there are only two possible outcomes. Either they own a home, or they do not. The probability of a resident owning a home is independent of any other resident. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
78% of residents in Summerville own a home.
This means that [tex]p = 0.78[/tex]
30 residents are randomly selected:
This means that [tex]n = 30[/tex]
Find the probability exactly 24 residents own a home.
This is P(X = 24).
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 24) = C_{30,24}.(0.78)^{24}.(0.22)^{6} = 0.1732[/tex]
0.1732 = 17.32% probability exactly 24 residents own a home.
aria is saving to buy a phone.she has 85 dollars and can save an additional 10$ per week how much total money will she have after 8 weeks
Answer:
165
Step-by-step explanation:
1. you have to do 10 x 8 bc she makes 10 dollars a week, and it says how much will she make in 8 weeks so you do 10 x 8. 10 x 8 = 80 , so you take the 85 dollars she has then you take the 80 and add them together and you get 165.
Answer:
Answer:$165
Answer:$165Step-by-step explanation:
Answer:$165Step-by-step explanation:She has $85.
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.Then,
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.Then,For 1 week,
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.Then,For 1 week,She saves $10
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.Then,For 1 week,She saves $10And, For 8 weeks,
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.Then,For 1 week,She saves $10And, For 8 weeks,She saves $10×8=$80
Answer:$165Step-by-step explanation:She has $85.She can save $10 per week.Then,For 1 week,She saves $10And, For 8 weeks,She saves $10×8=$80Hence, the total money that she will have after 8 weeks = $85+$80 = $165
Please help! By what does n mean it means on like a model
what is the expression for one-sixth of the sum of 7 and s plus the product of 2 and q
Answer:
= [tex]\frac{1}{6}[/tex] (7 + s) + ( 2 × q )
I'm pretty much sure that this is correct.
Find an equation of the line with the given slope that passes through the given point. Write the equation in the form Ax + By = C.
m = 3, (5,5)
Answer:
3x - y = 10
Step-by-step explanation:
y-5 = 3(x-5)
y - 5 = 3x-15
-3x+y= -10
3x - y = 10
1,3,5 are there first three term of the first differences of a quadratic equation. the 7th term of the quadratic sequence is 35
Answer:
2n-1
Step-by-step explanation:
Not sure what you needed but here is the nth term.
PLEASE HELP An order of five Grande Caramel Macchiatos and a Grande Caffe Mocha costs Derek $25.40. Kris orders three Grande Caramel Macchiatos and four Grande Caffe Mochas at a cost of $31.05. Find the cost of each drink.
Help plz, these questions are very confusing :/
Answer:
1.
cos ∅=b/h=24/25
:.b=24
h=25
by using Pythagoras law
h²=p²+b²
25²=p²+24²
p²=25²-24²
p=√7²=7
now
sin ∅=P/h=7/25
tan∅=p/b=7/24
2.cos ∅ is your answer
sec∅-sin∅tan∅
1/cos∅-sin²/cos∅
(1-sin²∅)/cos∅
cos²∅/cos∅
cos∅
3.
tan²∅-sec²x
sin²∅/cos²∅-¹/cos²∅
(sin²∅-1)/cos²∅
PLEASE HELP WILL GIVE BRAINLIEST!!!QUESTION IS ATTACHED AS PICTURE!!
Answers
Mortys total cost for the items he has purchased : ?
Mortys revenue from the sales : ?
Mortys total profit was : ?
Answer:
15.00-2500...
20.00+55.00
6 + 2x^2= 20 simplest form
Answer:
6 + 2x² = 20
2x² = 20 - 6
2x² = 14
x² = 14 ÷ 2
x² = 7
x = √7
x = 2.64
The radius of a circle is 2.5 cm. Find the circumference to the nearest tenth.
Answer:
5
Step-by-step explanation:
2.5 is half so just add 2.5 and 2.5 and you get 5, which you dont need to round because its already rounded
the graph (shown in red) below shows the solution set of which inequality?
Answer:
I think that is a
Step-by-step explanation:
15) Perry had some candy to give to his five
children. He first took three pieces for
himself and then evenly divided the rest
among his children. Each child received
three pieces. With how many pieces did
he start?
32
Answer:
18
Step-by-step explanation:
5 kids times 3 pieces each = 15 and then add the 3 that the dad got.
Answer:
18
Step-by-step explanation:
let 'x' = pieces of candy at start
(x-3)/5 = 3
cross-multiply:
x - 3 = 15
x = 18
SHOW WORK FOR BRAINLIST!!!
60% of students in a class use TikTok. 20% of those students post their own videos. If 3 students post videos to TikTok, how many students are in the class?
Answer:
25 students
Step-by-step explanation:
Let x = no. of students in the class
.6x = no. of students that use TT
.2(.6x) = no. of students that post videos
.2(.6)x = 3
.12x = 3
x = 25 students
really just need assistance at this point ??