Answer:
(3 +/- i*sqrt(151) / 20 (no real solutions)
Step-by-step explanation:
10x^2 - 6x + 4 = -3x
Add 3x to both sides
10x^2 - 6x + 4 + 3x = -3x + 3x
10x^2 - 6x + 4 + 3x = 0
Add like terms
10x^2 - 3x + 4 = 0
We have to use quadratic formula to find the answers
For this equation, a = 10, b = -3 and c = 4
Note: +/- is plus or minus
Quadratic formula:
x = (-b +/- sqrt(b^2 - 4ac)) / 2a
x = (-(-3) +/- sqrt(-3^2 - 4(10)(4))) / 2(10)
x = (3 +/- sqrt(9 - 160)) / 20
x = (3 +/- sqrt(-151) / 20
x = (3 +/- i*sqrt(151) / 20
if there's a "-" sign inside a square root, it will give you an imaginary number.
Example:
-sqrt(9) = -3
sqrt(-9) = 3i (first you will ignore the "- " sign, then square the number. After finding the square root, take that '-' sign and turn it to an "i")
So for sqrt(-151), 151 is not a perfect square, so you will get a decimal number. Leave it as it is:
sqrt(151). We can't forget about the "-". Turn the minus into a sign.
It will be i*sqrt(151)
Imaginary numbers can't be simplified, so this is the answer.
(3 +/- i*sqrt(151) / 20
What is 2x + 7y = -14 in y=Mx+b form
Answer: y= -2/7x-2
Step-by-step explanation:
what's 4/6 + 5/8 ? can u write it out so i can show my work?
Answer:
2 and 3/8
Step-by-step explanation:
4/6 = 6/8 so 5/8 + 6/8 = 2 and 3/8
Evaluate the expression 2 (3)^3 + 5
Answer: that’s 2 times 27 wich is 54 and then add 5 is 59
Step-by-step explanation:
Brayden was out at a restaurant for dinner when the bill came. His dinner came to $22. After adding in a tip, before tax, he paid $28.60. Find the percent tip.
Answer:
30%
Step-by-step explanation:
28.60-22=6.60
6.60/22=0.3
Answer:
30% tip
Step-by-step explanation:
First, we need to find out how much money Brayden left for the tip. To find this, we'll subtract the initial bill from the remaining bill. It will look like this:
$28.60 - $22 = $6.60
We now know that Brayden left a tip of $6.60. Next, we need to set up a proportion to find out what percentage that is. For the first fraction, we need to plug in the tip and the initial bill. We'll use t to represent the tip, and w to represent the whole. It will look like this:
[tex]\frac{6.60t}{22w}[/tex]
Next, we need to set up the second fraction of the proportion. We know that every percent is out of 100, so we know that 100 will be our bottom number. We are solving for the percentage out of 100, so we will use x in its place. The final proportion will look like this:
[tex]\frac{6.60t}{22w} = \frac{x}{100w}[/tex]
Finally, we'll cross multiply and divide to get the final answer. First, multiply 6.60 by 100 to get 660. Finally, divide 660 by 22 to get a final answer of 30%. Brayden left a 30% tip on the bill. The final calculations are as follows:
6.60 X 100 = 660
660 / 22 = 30%
Which number represents 3.5 x 10^9
Answer:
3,500,000,000
Step-by-step explanation:
the exponent symbolizes how many places the decimal moves. since its positive, it moves to the right. if it where a negative exponent then it would move to the left.
I will check i do it on my phone ill help u out
If
x
=
2
and
y
=
5
, evaluate the following expression:
2
(
4
x
+
3
y
)
When x = 2 and y = 5, the value of the expression 2(4x + 3y) is 46.
What is an expression?
Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.
The expression given is - 2(4x + 3y).
If x = 2 and y = 5, then substitute these values into the expression and simplify as follows -
2(4x + 3y)
2(4(2) + 3(5))
Use the arithmetic operation of multiplication -
2(8 + 15)
Use the arithmetic operation of addition -
2(23)
Use the arithmetic operation of multiplication -
46
Therefore, the value is obtained as 46.
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The equation is shown. What FACTOR is missing from the equation?
30 + 12 = _(5 + 2)
8
2
4
6
You and 3 friends are going to the fair. You have a coupon that will save your group $20. If the total bill to get into the fair was $100, how much does one regular priced ticket to the fair cost?
Equation:
Answer:
Answer:
one regular ticket costs $30
Step-by-step explanation:
The total number of people = 4
Without the $20 coupon, the total cost would have been =100+20 = $120
Assume the price of one regular ticket is x;
4x = 120
Divide both sides by 4 to solve for x
x = 120/4
x = 30
Therefore, one regular ticket costs $30
Answer:
$30
Step-by-step explanation:
Since you pay 100 after discount, you add the 20 dollar discount to the 100 ($120)
Then since there are 4 of you in total, (you+ 3 friends), you divide by 4.
And Voila, your answer is $30 per person.
Hope this helps :)
Answer correctly
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0+0
What dimensions of the box are required to fit the candle? 5 cm by 6 cm by 18 cm 7 cm by 6 cm by 18 cm 5 cm by 3 cm by 18 cm 7 cm by 3 cm by 18 cm
Answer:
7cm.by6cm sana makatulong
Answer:
The correct answer would be...
B. 7 cm by 6 cm by 18 cm
Step-by-step explanation:
A local restaurant charges $12 for a ham dinner and $15 for a turkey dinner. If they earned $1, 017 for their thanksgiving dinner night and they sold 35 turkey dinners, how many ham dinners did they sell?
Answer:
Step-by-step explanation:
66
Two customers went to an auto body shop. The first customer paid $561 for and oil change and four new tires. The second customer paid $303 for an oil change and two new tires. What is the cost of an oil change?
78
Step-by-step explanation:
124 students played a sport in the fall, and 76 students played a sport in the spring. What was the percent decrease of the students who played sports in the spring? Round your answer to the nearest tenth of a percent.
Answer:
5.7%
Step-by-step explanation:
subtract 124-76.
then, you would divide 76 by 124 to get a weird number so multiply that by 100 to get this.
5.64516129.
then rounding to the nearest tenth would be 5.7.
so i think it would be 5.7%.
R4 = 74 what does R equal??????????????\
Answer:
R = 18.5
Step-by-step explanation:
Answer: 18.5
Step-by-step explanation: Divide 74 by 4
If you don't give a good answer I will report you
Tickets to a movie cost $9.25 each. What is the total cost for 6 tickets?
In a lilac paint mixture, 40$ of the mixture is white paint, 205 is blue, and the rest is red. There are 4 cups of blue paint used in a batch of lilac paint. If you get stuck, consider using a tape diagram.
Answer:
White paint is 8
Blue paint is 4
Red paint is 12
The recipe will yield 24 cups of lilac paint if you are talking about the problem i had earlier on my math homework
A 15 meter trunk broke and fell against a wall. The base of the tree is 10 meters from the wall. Found the distance from the ground to the top of the tree. Round your answer to the nearest tenth. Identify which trig function you will be using to solve the problem.
Answer:
11.2 m
Step-by-step explanation:
The distance from the ground to the top of the tree = h
Using Pythagoras rule :
Adjacent² = hypotenus² - opposite²
h² = 15² - 10²
h² = 225 - 100
h² = 125
h = Sqrt(125)
h = 11.18
h = 11.2 m to the nearest tenth
18% discount on a list price of $25
Answer:
$20.50
Step-by-step explanation:
100% price - 18% discount = 82%.
82% can be written as .82
The original price was 25, so we multiply 25 by 0.82. We get $20.50.
If you are looking for the amount saved, subtract 20.5 from 25. We get $4.50.
What is this answer?
Answer:
B is the correct answer
Use place value blocks 60rows of cornstalks type Agrows better so there are8 cornstalks in each row type B does not grow as well so they are only 3 cornstalks in each row
Answer:
Each field has cornstalks = 660
Step-by-step explanation:
P.S - The exact question is -
As given,
There are 2 types of corn - Type A and Type B
Each field has 60 rows
In each row -
Type A corn grow = 8
Type B corn grow = 3
⇒Total corn grow in each row = 8 + 3 = 11
Now,
1 row = 11 cornstalks
⇒60 rows = 60×11 cornstalks = 660 cornstalks
∴ we get
Each field has cornstalks = 660
Event to consider: There is a 50 percent chance that you drive up to a stop light and it is yellow.
True
False
Answer:
False
Step-by-step explanation:
Usually there are three different lights on a stop light to consider
With three lights, the chance that the light is yellow would be about 33.334%
If it were to be a 50/50 chance then there would only be two lights
I need answer asap pls
Answer: Hey man, go with your guess, you might be wrong you might be correct.
Step-by-step explanation: But I wouldn't pick or because if you're saying or, you're basically asking the question to the original question so I would pick one of the and's
Answer:
b < -7 or b > 7
Step-by-step explanation:
b is surrounded by absolute value bars, which means that whether the value of b is negative or positive, the bars will make it positive. |b| is said to be greater than 7, so the value of b must be:
less than -7 (it can be -8, -9, -10, ...) because the absolute value bars will make it positive.
&
greater than 7 (it can be 8, 9, 10) because it will stay positive anyway.
Therefore, the second answer choice is correct.
I hope this helped! :)
The ABC Book Club charges a $40 monthly fee, plus $2 per book read in that month. The Easy Book Club charges a 35$ monthly fee, plus 3$ per book read in that month. For each club, how many books must be read in 1 month for the total charges from each club to be equal.
Combine like terms
(4x^2+6x+7)−(−8x^2−2x+6)
Answer:
12x^2+8x+1
Step-by-step explanation:
if 3 boys build a snow manin 24 minutes how many can 9 finish building in 1 hour
Answer:
what does "manin" mean I can help i just need to know what that word means
i get ur question now! :)
so in 72 minutes 9 kids can make 8 snowman's
Hope this helps u and A LOT! :)
Step-by-step explanation:
Answer:
The answer is 6.
figure b is a scaled copy of figure a, what is the scale factor from figure a to figure b?
Helpppp me plzzzzzzzzzz
Answer:
it is correct
Step-by-step explanation:
trust ur gut
Answer:
you have to correct answer
Step-by-step explanation:
just convert the square roots and fractions to whole numbers and then put them from least to greatest
How would it look like if you graphed this equation. y = 2x - 2
Answer:
Step-by-step explanation:
is this right re answer what's wrong please !?
Answer:
explination...
Step-by-step explanation:
so from how i’m understanding it, it would be 12(90) + 20(121).
so 12 x 90 is 1080. so that’s already a good amt, but then 20 x 121 is 2420. now if we add those together,
2420
+1080
-————
3500
so instead of there being more money than she spent, she actually gets the same amount back. so just rearange what’s you out to make sense in a way that matches the problem and you should be good (that was saying it nicely sorry if that seemed rude haha)
which of the following could be points on the unit circle?
Answer:
Step-by-step explanation:
In each case, square the coordinates of the point and determine whether or not the sum of these squares is 1:
A) 4/9 + 5/9 = 9/9 YES
B) 1 + 1 = 2 NO
C) 3/4 + 1/9 Not equal to 1. NO
D) 0.64 + 0.36 = 1.00 YES
HENCE OPTION B(1,1) IS CORRECT
What is unit circle?
A unit circle is a circle with a radius of one, as defined by mathematics. The unit circle is a circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane, which is used frequently in trigonometry.
How to solve?
Clearly from the given options (1,1 ) will lie on the circle , Hence option b (1,1) is correct .
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