Solve 6 + 4x - x², by method of completing the square. (Do not use quadratic formula or factoring. Show your working)
Answer:
6+4-x^2
Step-by-step explanation:
10-x^2
-x^2+10 is the answer
45 divided by 855 show your work!
Answer:
45 divided by 855 is a very odd number however 855 divided by 54 is 19 ... because 45 multiply by 19 is 855
the x-intercept of the graph of f(x)=3log(x-5)+2 is:
Answer:
C
Step-by-step explanation:
To find the x- intercept let f(x) = 0 , then
3log(x - 5) + 2 = 0 ( subtract 2 from both sides )
3log(x - 5) = - 2 ( divide both sides by 3 )
log(x - 5) = - [tex]\frac{2}{3}[/tex] , then
x - 5 = [tex]10^{-\frac{2}{3} }[/tex] ( add 5 to both sides )
x = [tex]10^{-\frac{2}{3} }[/tex] + 5 → C
Help please help I really need help
Answer:
i can barely see this...can you make it bigger then i can figure out what o do so i can give you the answer......
Step-by-step explanation:
Find the slope of the line passing though the points (-7,7) and(-7,-4)
Answer:
the slope is undefined because it's a vertical line
The variable f varies inversely as the square root of g. When f = 4, g = 4. Jordan’s work finding the value of f when g = 100 is shown: f = k 4(4) = k 16 = k f = 16 f = 16 10f = 16 f = 1.6 What is the first error, if any, in Jordan’s work?
Variation can be direct, inverse or jointly
Jordan's first error is that he incorrectly calculated the value of proportionality constant
From the question, we understand that f varies directly as the square root of g.
This variation is represented as:
[tex]\mathbf{ f\ \alpha\ \frac{1}{\sqrt{g}}}[/tex]
Express as a equation
[tex]\mathbf{ f\ \ =\ k\frac{1}{\sqrt{g}}}[/tex]
When f = 4, k = 4.
So, we have:
[tex]\mathbf{ 4\ \ =\ k\frac{1}{\sqrt{4}}}[/tex]
[tex]\mathbf{ 4\ \ =\ \frac{k}{2}}[/tex]
Multiply both sides by 2
[tex]\mathbf{ k = 8}[/tex]
When g = 100, we have:
[tex]\mathbf{ f\ \ =\ k\frac{1}{\sqrt{g}}}[/tex]
[tex]\mathbf{ f\ \ =\ 8 \times \frac{1}{\sqrt{100}}}[/tex]
[tex]\mathbf{ f\ \ =\ 8 \times \frac{1}{10}}[/tex]
[tex]\mathbf{ f\ \ = 0.8}[/tex]
This means that, Jordan incorrectly calculated the value of proportionality constant
Read more about variation at:
https://brainly.com/question/1698891
2. The electrical resistance R of a wire varies inversely with the square of its diameter d. If a wire with a
diameter of 3 millimeters has a resistance of 0.4 ohm, find the resistance of a wire having the same
length and a diameter of 8 millimeters.
Answer:
[tex]0.225 \Omega =225 m\Omega[/tex]
Step-by-step explanation:
We know (Ohm second law) that [tex]R= \frac{k}{d^2}[/tex] where k inlcudes the rest of the parameters (material, lenght). In our situation we have k= [tex]0.4\cdot9 \Omega mm^2[/tex]. The moment the diameter becomes 8mm R becomes
[tex]R= {{0.4\cdot 9}\over{16}} \Omega = 0.225 \Omega[/tex]
y^2 -y-2 help me................
Answer:
hope it helps you............
[tex]\bold{Hewo!!}[/tex]
--------------------------
ANSWER :[tex]\sf{=(y~+~1)~(y-2)[/tex]EXPLANATION :[tex]\sf{Factor~y^2 - y-2:}~(y~+~1)~(y-2)[/tex]
[tex]\sf{y^2-y-2}[/tex]
[tex]\sf{Break~the~expression~into~groups:}[/tex]
[tex]\sf{=(y^2~+~y)~+~(-2y-2)[/tex]
[tex]\sf{Factor~out~y~from~y^2~+~y:~y(y~+~1)[/tex]
[tex]\sf{Factor~out~-2~from~-2y-2:~-2(y~+~1)[/tex]
[tex]\sf{=y(y~+~1) -2(y~+~1)[/tex]
[tex]\sf{Factor~out~common~term~y~+~1}[/tex]
[tex]\sf{=(y~+~1)~(y-2)}[/tex]
Hope It Helps !
#LearnWithBrainly
[tex]\underline{\large\huge{\mathfrak{Answer~:}}}[/tex]
[tex]\sf{Miwsow}[/tex]
Simplify 9 - 3(5-4x)
Answer:
12x-6
Step-by-step explanation:
9-3(5-4x) distribute
9-15+12x subtract
-6+12x rearrange
12x-6
The temperature at 6 a.m. is −4∘F. The temperature is expected to increase 2∘F per hour until 3 p.m. Which equation represents this situation, where x represents the number of hours past 6 a.m., and y is the temperature at that hour?
y=2x+4
y= -4x+2
y=2x-4
y=4x-2
Answer:
C
Step-by-step explanation:
hope it helps
would appreciate brainly
Answer:
C!
Step-by-step explanation:
what is the sum of 25.234 and 14.454
What is the sum of 25.234 and 14.454
25.234
14.454
_______ +
39.688
25.234 + 14.454 = 39.688 ✔️
Juan spent $2.50 on apples and oranges. He bought 5 apples at $0.36 each. What is the most he spent on the oranges?Please this is for my homework
Answer:
$0.70
Step-by-step explanation:
5 × $0.36 = $1.80
$2.50 - $1.80 = $0.70
I hope this helped!
solve for x. round to the nearest tenth of a degree, if necessary
10 to the 2 power in fraction form
Answer
5
to per power
Step-by-step explanation:
Convert to a decimal by dividing the numerator by the denominator.
Hey there!
10^2
= 10 * 10
= 100
Therefore, your answer should be: 100
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Help if I don’t do this imma get kicked out
Answer:
A = (-2.5, -1.5)
B = (4.5, -3.5)
Step-by-step explanation:
X coordinates come first, and A is in between -2 and -3 at -2.5, and B is between 4 and 5 so we have 4.5
Then we have y coordinates, and A is between -1 and -2 so -1.5, and B is between -3 and -4, so -3.5.
The graph shows the savings in Andre's bank account. What is the slope of the line?
Answer:
m=5
Step-by-step explanation:
you have to use the formula y2-y1/x2-x1.
y2= 60
y1= 40
60- 40= 20
x2= 4
x1= 0
4-0= 4
20/4= 5
hope this helps
Anna has 128 trees in her garden. 16 of the trees are apple trees.
What percentage of the trees in the garden are apple trees
Answer:
12.5%
Step-by-step explanation:
To change a fraction to o percentage , multiply by 100% , so
[tex]\frac{16}{128}[/tex] × 100%
= 0.125 × 100%
= 12.5%
I need it asap thanks
Answer:
Point-slope form: y - 3 = -6/5 (x + 5)
Slope-intercept form: y = -6/5x - 3
3. About 31% of the people who come to the park bring a dog. One third of people who come to the park
exercise. Which group of people represents a larger percent of the people coming to the park
Let all people be 100%
Now
People bring dog=31%
1/3rd of people
[tex]\\ \sf\longmapsto 100/3=33.3\%[/tex]
Second group people has larger percentage
it is a three digit whole number it is divisible by 2 it is divisible by 4 it is divisible by 5 it is divisible by 3 it is divisible by 6 it is divisible by 9 it is less than 300 it is greater than 150 it is a multiple of 90
Answer:
Is it perhaps one hundred and eighty (80)
Answer:
180
Step-by-step explanation:
180/2=90
90x2=180
180/4=45
180/5=36
180/6=30
180/9=20
the answer is 180 because it is less than 300, more than 150, and all of those numbers get whole numbers when they are divided. if you needed to know it is 2 sets of 90.
Please solve and explain part a
[tex]2 \times {10}^{0} \\ = 2 \times 1 \\ = 2[/tex]
Answer:You should circle 2 in the units place.
Hope it helps.
Do comment if you have any query.
Answer:
222.222
Step-by-step explanation:
[tex] \\ \tt2 \times {10}^{0} [/tex]
[tex] \\ \tt = 2 \times 1[/tex]
[tex] \\ \tt = 2[/tex]
What is the value of:
a. 9^-1/2
b. (1/8)^-1/3
Answer:
a=5/9
b=24/9
Step-by-step explanation:
Graph f(x) = -2/3x-3
PLS ANSWER AND SHOW HOW ITS GRAPHED
Answer:
Graph and solved
Step-by-step explanation:
solve using quadratic formula x^2-5x+4=0
Answer: x = 4,1
Step-by-step explanation:
Answer:
x = 4 or x = 1
Step-by-step explanation:
x² - 5x + 4 = 0
⇒ x² - 4x - x + 4 = 0
⇒ x (x - 4) - 1 (x - 4) = 0
⇒(x - 4)(x - 1) = 0
Therefore,
x - 4 = 0
⇒ x = 4
Again.
x - 1 = 0
⇒ x = 1
Hence, x = 4 or x = 1 :)
Help I have a time limit
Answer:
The answer is A
Step-by-step explanation:
7^2=49 10^2=100
49+100 = 149
sqrt(149)
Answer:
A) [tex]\sqrt{149}[/tex]
Step-by-step explanation:
Pythagorean Theorem: [tex]c^{2}[/tex] = [tex]a^{2}[/tex] + [tex]b^{2}[/tex]
c² = a² + b²
c² = 7² + 10²
c² = 49 + 100
c² = 149
c = [tex]\sqrt{149}[/tex]
“The total weight of 50 identical marbles”
Answer:
50multiply8=400grams
Find the value of a/b when a=$13. 93 and B=0. 07
Thank you.
Answer:
10
Step-by-step explanation:
A = 7, B = 2
7 = 2 * 3 + 1
7 mod 2 = 1
A = 8, B = 4
8 = 4 * 2 + 0
8 mod 4 = 0
A = 13, B = 5
13 = 5 * 2 + 3
13 mod 5 = 3
A = -16, B = 26
-16 = 26 * -1 + 10
-16 mod 26 = 10
all of the following are equivalent except ____
1. (-1)^4
2. -1
3. 4^0
4. 1
Answer:
4
Step-by-step explanation:
i think
Divide.
1.61÷0.35
Enter your answer in the box.
Question is below!!!!!!! Please help
Answer:y=10
Step-by-step explanation:u see the right side numbers increase by 7