Which of the following are solutions to the equation below?
Check all that apply
x2 + 4x + 4 = 12
Answers
Answer:
C. 2√3 - 2Step-by-step explanation:
[tex]x^2 + 4x + 4 = 12\\\\x^2+2\cdot x\cdot2+2^2=12\\\\(x+2)^2=12\\\\x+2=-\sqrt{12}\quad\vee\quad x+2=\sqrt{12}\\\\x=-2\sqrt{3}-2\quad\vee\quad x=2\sqrt3-2[/tex]
Related Questions
8 cubed as a single power of 2
Answers
Answer:
[tex]2^{9}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex](a^m)^{n}[/tex] = [tex]a^{mn}[/tex]
note that 8 = 2³ and so
8³ = (2³ )³ = [tex]2^{3(3)}[/tex] = [tex]2^{9}[/tex]
9. A group of 14 friends went to a basketball game and paid a total of $70 for their admission tickets. They received a discount of $2 off the original price (p) of each ticket. What is the value of p?
Answers
the answer is $7
Step-by-step explanation:
70 divided by 14 is 5.
cost would be $5 per person before discount of $2
$5 plus $2 equal $7
p= $7
Can someone help me find the gradient for this graph
Answers
Gradient = (y2-y1)/(x2-x1) = (4-0)/(7-0) = 4/7
Which scenario is best represented by a linear function?
A
The area of a square, A, where the length of each side of the square is represented by
S (A= s?)
The perimeter of a square, P, where the length of each side of the square is
B represented by s
(P = 4s)
The surface area of a cube, A, where the length of each side of the cube is
C represented by s
(A = 6s )
The volume of a cube, V, where the length of each side of the cube is represented by
s(V = $)
Answers
Answer:
P=6sStep-by-step explanation:
to understand thisyou need to know about:linear functiontips and formulas:a linear function is function with two variables one dependent another one is independentlet's solve:since we can see what linear function is
the second condition is the best fit
The perimeter of a square, P, where the length of each side of the square is B represented by s(P = 4s)therefore
our answer is b
k+ 6 ≥ 19, if k = 11
Answers
Answer:
Then it would be the other way around 19 ≥ k + 6
Wait for more responses if needed.
The given Inequality is correct when 19 ≥ k + 6.
What is inequality?Inequality compares "two values, showing if one is less than, greater than, or simply not equal to another one".
Given k + 6 ≥ 19 if k = 11
11 + 6 ≥ 19 substitute k = 11
17 ≥ 19 here Inequality is False.
Hence, 19 ≥ k + 6.
To learn more about Inequality here
https://brainly.com/question/21555891.
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Jane and 3 friends decided to split the cost of a pizza evenly. The total cost was $25.48. How much does each friend have to pay?
Answers
Answer:
$6.37
Step-by-step explanation:
Jane and 3 friends = Jane + another 3 people
= 4 people in total
Total Cost of pizza = $25.48
If 4 people split $25.48 evenly,
Amount each friend has to pay = Total Cost of pizza/Total number of people
= $25.48/4
= $6.37 per friend
Each friend has to pay $6.37 each if $25.48 is splitted evenly amongst them
Will and Ben win £1000 in a raffle
they give a fifth of it to charity and share what's left in the ratio 1:3.
How much is bens share
Answers
Answer:
600
Step-by-step explanation:
Answer:
£600
Step-by-step explanation:
1/5 of 1000= £200
that means £800 is left over
1:3= 200:600
ben gets £600, will gets £200
Need help due today please
Answers
Answer:
f(x) = -7(x-5)^2 +5
f(-1) = -7(-1-5)^2 +5
f(-1) = -7(-6)^2+5
f(-1) = -7(36)+5
f(-1) = -252+5
f(-1) = -247
Let me know if this helps!
Answer:
-247
Step-by-step explanation:
f(-1) = -7((-1)-5)^2
If it takes 2 cups of sugar for 24 cookies, how many cups of sugar will it take for 72 cookies?
Answers
Answer:
6
Step-by-step explanation:
72/24=3
3*2=6
I BET NO ONE KNOWS THIS Place a checkmark next to each answer choice that describes a situation in which economic indicators might be helpful. ALL THAT APPLY
A. A business is trying to design the packaging for a new product.
B. A company is considering expanding and building more factories.
C. A college student is writing a paper on current economic trends.
D. A contractor is trying to decide which of two designers to hire to decorate his
model homes.
E. A recent college graduate is trying to decide what type of business to start.
F. The U.S. government is trying to determine how involved they should be in the
economy in 2016.
Answers
Answer:
E, F, B, and C
Step-by-step explanation:
Im just learning about these kind of things and this is a challenging question not going to lie.
I chose B because expanding and building more factories is apart of economics. You need more land to expand your business, but this will also affect the economy.
C seems like a good answer also because writing about economic trends is an important thing in economics. This also helps others learn out the economy and what not to do and what to do to help make our environment a better place.
I chose E because starting a business is apart of economics. A lot of business are apart of economic systems and help money come into our economy.
F is a good answer for me because the U.S government has been apart of America's economic system for a long time just like they are involved with everything else. The government is a big help and a big part of our economy, especially for america.
I don't know why I keep getting 93 ft but it says it's wrong...
Find the perimeter of the figure.
Answers
Answer:
Your answer is 84.
9+9+9+9+9+9 (9x6) +30. 9x6 is 54 so then, you'd have to do 54+30 to get 84.
~Sophia
Answer:
96 ft
Step-by-step explanation:
9 + 9 + 9 + 9 + 12 + 9 + 9 + 30 = 96 ft
James recently got a credit card. The APR on the card is 19.8%. What is the monthly interest rate?
A. 1.65%
B. 7.8%
C. 12%
D. 19.8%
Answers
The answer is A.
Step-by-step explanation:
ARP means Annual Percentage Rate. Annual means yearly and there are 12 months in a year so divide 19.8 by 12 and you get 1.65.
Find an equation in point-slope for the line having the slope m m = - 6 and containing the point (8,6)
Answers
Answer:
y-6 = -6(x-8)
Step-by-step explanation:
Here, we want to get the equation of the line in point-slope form
The point slope form is;
y-y1 = m(x-x1)
(x1,y1) represents the slope
We have this as ;
y-6 = -6(x-8)
Find the domain and range for f(x)=pi cos(x)
Answers
Domain of f(x) = pi cos x is ALL REAL NUMBERS.
The range of f(x) = pi cos x is [-1, 1].
100 points ! What is the area of the following composite figure? All angles are right angles.
24 m^ 2
27 m ^2
29 m^ 2
22 m^ 2
Answers
Answer:
24m²
Step-by-step explanation:
..,.................
Area = 5*4+2*1+2*1
Area = 20+2+2
Area = 24m²
Answer:
24 m^2
Step-by-step explanation:
We need to study the structure well
We can find the magnitude of the big rectangle. We will need to find the total length and total breadth of the big rectangle
Then we remove the area of the four squared cut out from the big rectangle.
Total length of the rectangle is 5+1+1=7m
Then the length of the breath of the rectangle is 2+1+1=4m
So area of rectangle is given as length × breadth
Area= l×b
Area=7×4=28m²
Area of the big rectangle is 28m²
Then the squared is made of dimension 1m by 1m
Area of a square is s²
Then, a=1m
Area of the square= 1²=1m²
There are four squared side
Then, the total area of the four squared is 4×1=4m²
Then the required area is
Area=Total area - area of four squared side
Area=28m²-4m²
Area =24m²
Area of the figure is 24m²
The correct option is A.
Is
Y=-3/4x -2
Y=3/4x+1
One solution many solution or no solution
Answers
3. What are the factors in the expression 4(5 + x)?
Answers
Answer:
Step-by-step explanation:
The factors are the parts that are being multiplied together.
4 and (5+x) are the two that are being multiplied and also the expression you get when you factor the distributed expression.
So the factors of 4(5+x) are:
4 and (5+x)
A bag contains 8 red marbles, 12 blue marbles, and 17 green marbles. If one marble is randomly selected
from the bag, what is the probability that the marble is red or green?
for
Answers
Answer:
There are 37 marbles.
Probability = (# favorable outcomes) / (# total outcomes)
P (r or g) = 25/37
3) 25/37
Step-by-step explanation:
The probability of red or green marbles is 0.676
How to determine the probability?The given parameters are:
8 red marbles, 12 blue marbles, and 17 green marbles
The number of red or green marbles is:
Red or Green = 8 + 17
Evaluate
Red or Green = 25
The probability of red or green marbles is:
P = 25/(8 + 12 + 17)
Evaluate
P = 0.676
Hence, the probability of red or green marbles is 0.676
Read more aboit probability at:
https://brainly.com/question/251701
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Please
Explain, in detail, the steps on how to factor the following trinomial: 3x^2 + 5x + 2
Answers
Answer:
Step-by-step explanation:
Hope this helps
HELP PLEASE! DID I DO THAT RIGHT?!
Answers
Answer:
I think it is right, yes i think it is.
Step-by-step explanation:
At a local restaurant the amount of time that customers have to wait for their food is normally distributed with a mean of 26 minutes and a standard deviation of 3 minutes what percentage of customers have to wait less than 28 minutes to the nearest tenth
Answers
Answer:http://avconline.avc.edu/jdisbrow/ma115/Practice%20Test%203%20with%20answers.pdf
Step-by-step explanation:
you welcome
Please help! I need it to move on to the next question I have 30 minutes
Answers
Answer:
uh either b or e
the others are slope-intercept
I hope this helps:)
- ♥
How to get the simple interest
Answers
Answer:
0-o? you got my interest in you :0
Step-by-step explanation:
If a = -2 and b = -4 -3i, then find the value of a b in fully simplified form.
Answers
Answer:
I'm not so sure but I think it's 6 or 9i
Could someone possibly help me with this question? Thanks
Answers
Answer:
[tex]12\sqrt{2}[/tex]
good luck, hope this helps :)
A gas station started the weekend selling gas for $3.79 per gallon. Towards the end of the weekend, gas was $3.49 per gallon. What is the percent decrease in gas price per gallon? Round percentage to the tenths place.
Answers
Answer: 7.9%
Step-by-step explanation:
trust me
simplify -5 ¼ - (-7 ½)
Answers
Answer:
2 1/4
Step-by-step explanation:
-5 1/4- (-7 1/2)
to minus cancel each other out so it becomes a plus
-5 1/4 + 7 1/2
common dinomanater
-5 1/4 + 7 2/4
2 1/4
In what group of 120 seventh graders, 30% have completed their science project. how many students have completed their science project?
Answers
Answer:
36
Step-by-step explanation:
30% of 120 is 120 x 0.3
120 x 0.3 =36.
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Complete the following proofs.
Given: Points R, S, T, Q on circle O
Prove: mRS + mST + mTQ = mRQ
Answers
Answer:
Match the number of statement with the same number of reasons.
Step-by-step explanation:
Here are the statements
1.
Points R, S, T, Q on circle O
2.
measure of RS+ST=RT
measure of RT+TQ=RQ
3.RS+ST+TQ=RQ
Here are the reasons
1.Given
2. Arc Addition
3. Subsitution
Which expression is equivalent to the expression below?
2(6k+4)−4(2+2k−1)
-------------------------------------------------------------------------
a} 18+48k
b} 14k−1
c} 4k−4
d} 4+4k
Answers
Answer:
D. 4+4k
Step-by-step explanation:
(12k +8) - (8+ 8k - 4)
12k +8 - 8 - 8k + 4
4k +4
d}4+4k
2(6k+4)-4(2+2k-1) writing down the question
12k+8-8-8k+4 multiplying the numbers by the coefficients
12k-8k+8-8+4 collecting like terms
4k+4 the answer