Answer:
[tex]x = \frac{3}{4} + \frac{ \sqrt{105} }{4} \: \: , \: \: \: x = \frac{3}{4} - \frac{ \sqrt{105} }{4} \\ [/tex]
Step-by-step explanation:
2x² - 3x - 12 = 0
Using the quadratic formula which is
[tex]x = \frac{ - b \pm\sqrt{ {b}^{2} - 4ac} }{2a} \\ [/tex]
From the question
a = 2 , b = - 3 , c = - 12
So we have
[tex]x = \frac{ - - 3\pm \sqrt{ ({ - 3})^{2} - 4(2)( - 12)} }{2(2)} \\ = \frac{3\pm \sqrt{9 + 96} }{4} \\ = \frac{3\pm \sqrt{105} }{4} \: \: \: \: \: \: [/tex]
Separate the solutions
We have the final answer as
[tex]x = \frac{3}{4} + \frac{ \sqrt{105} }{4} \: \: , \: \: \: x = \frac{3}{4} - \frac{ \sqrt{105} }{4} \\ [/tex]
Hope this helps you
Classify the polynomial by its degree and the number of terms. 8x²- 3y + 7
Answer:
2nd degree
Step-by-step explanation:
How to add rational numbers with different denominator ?
How to add rational numbers with same denominator ?
Help!
Answer:
6/7 + 18/7 = 24/7
Step-by-step explanation:
you add the numerator while the denominator remains the same
HELPP ME PLSSS!!! thank you!
A cube with an edge of 10cm is filled with water.How much water contain.
Answer:
We know that all cube's sides are the same, so 10^3 = 1000 cm3 = 1000 ml = 1L
Step-by-step explanation:
Have a great day :)
What is -2 (7-4)+4=-4
please answer this quickly
Answer:
C
Step-by-step explanation:
she adds to her collection 6 +4 = 10. then triples that
Answer:
well by using pemdas you would solve whats in the parenthisis so 6+4 = 10 x 3 = 30
YOUR ANSWER IS 30
A rectangular tank has length 4m, width 12m and height 3.5..i. If the tank is filled with water 2/3 of its capacity ,calculate the volume of the water in the tank.
Answer:
The volume of the water in the tank is 112 m³
Step-by-step explanation:
The volume of the rectangular prism V = L × W × H, where
L is its lengthW is its widthH is its height∵ A rectangular tank has a length of 4 m, a width of 12 m, and
a height of 3.5 m
∴ L = 4 m
∴ W = 12 m
∴ H = 3.5 m
∵ V = L × W × H
∴ The volume of the tank = 4 × 12 × 3.5
∴ The volume of the tank = 168 m³
∵ The tank is filled with water [tex]\frac{2}{3}[/tex] of its capacity
→ That means the volume of the water is [tex]\frac{2}{3}[/tex] the volume of the tank
∵ The volume of the water = [tex]\frac{2}{3}[/tex] the volume of the tank
∴ The volume of the water = [tex]\frac{2}{3}[/tex] × 168
∴ The volume of the water = 112 m³
∴ The volume of the water in the tank is 112 m³
3 divided by 1/? = 18
Answer: ? = 6
Step-by-step explanation:
3 divided by 1/x = 18
3x= 18
x = 6
Answer:
3 divided by 1 equals 3
How :
We can write 3 divided by 1 as a ratio, fraction, or equation. Let's try writing this statement in all these ways
3:1
3/1
3÷1
The easiest way for me to solve this question is as a fraction so let's solve it like that. If the denominator is a 1, we immediately know that the answer is the numerator and that you don't need the denominator. so we can take away the 1 from 3/1 and that is how our answer is 3!
Hope this Helps!!! :)
Let me know in the comments if the answer was perfect or if I should change anything!!! :)
which is equvilent to 8/9
A 8 divided by 1/9
B 8 divided by 9
C 9divided by 1/8
D 9 divided by 8
Answer:
It's B, I think.
Step-by-step explanation:
Four less than twice a number is 16
Answer:
woah lol
Step-by-step explanation:
I can't tell if this is a question or not
Olivia ate 1/6 of the pepperoni pizza and 1/3 of the vegetarian pizza and 1/6 of the cheese pizza how much of the pizza she eat
Answer: She ate 4/6 of the pizza.
I am being timed. Hurry please but take your time.
An unknown fractors is between 0 and 1. Which is true about the equivalent percent and decimal?
A. O The percent and decimal are betwern 0 and 1.
B. O The percent and decimal are greater than 1 and less than 100.
C. O The percent is between 0 and 1, and the decimal is greater than 0 and less than 100.
D. O The percent is greater than 0 and less than 100, and the decimal is between 0 and 1.
Answer: D. The percent is greater than 0 and less than 100, and the decimal is between 0 and 1.
PLEASE HELP WILL GIVE BRAINLIEST IM TAKING TEST RN
A. 7x + y = 13
B. x−7y=13
C. 7x−y=−13
D. x + 7y = 13
Answer:
I'm not 100% sure however I believe it would be x + 7x
Step-by-step explanation:
You start with what u have and then every week u get $7 each week. So I think this would be the best option however if it isnt right then I'm very sorry.
Hope this helps!
-⅘ + ⅗
I really need help on this
Answer:
The answer is -1/5
Step-by-step explanation:
The answer is -1/5 because -4/5 plus 3/5 is in decimal form -0.2 but in fraction form it is -1/5
Name all the segments that is parallel to the given segment.
Answer and Step-by-step explanation:
AB is parallel to FE
CA is parallel to EG
CB is parallel to FG
#teamtrees #WAP (Water And Plant)
0.3d-1/3 1/3=.84:7/15
Answer:
[tex]d=\frac{147}{6.3}[/tex]
Step-by-step explanation:
The right side is a ratio [tex]0.84:\frac{7}{15}[/tex] a ratio can be written as a fraction [tex]\frac{0.84}{\frac{7}{15} }[/tex] this means [tex]0.84[/tex] divide by [tex]\frac{7}{15}[/tex] which is the same as [tex]0.84*\frac{15}{7}=\frac{12.6}{7}[/tex] On the left, change the mixed fraction [tex]3\frac{1}{3}[/tex] to the improper fraction [tex]\frac{10}{3}[/tex] Then divide [tex]0.3d-1[/tex] by [tex]\frac{10}{3}[/tex] which is same as [tex](0.3d-1)*\frac{3}{10} =\frac{3(0.3d-1)}{10}[/tex] So the equation is now [tex]\frac{3(0.3d-1)}{10}=\frac{12.6}{7}[/tex] Now multiply both sides by 10 and 7:[tex](10)*(7)*\frac{3(0.3d-1)}{10}=\frac{12.6}{7}*(7)*(10)\\7*3(0.3d-1)=12.6*(10)\\21*(0.3d-1)=126\\6.3d-21=126\\6.3d-21+(21)=126+(21)\\6.3d=147\\d=\frac{147}{6.3}[/tex]Answer:
d=147/6.3
Step-by-step explanation:
d = 147 / 6.3
Reduce the Fraction: a(x-2y)/b(2y-x)
Answer:
[tex]\displaystyle-\frac{a}{b}[/tex]
Step-by-step explanation:
We have:
[tex]\displaystyle{\frac{a(x-2y)}{b(2y-x)}[/tex]
In the denominator, we can factor out a negative 1. This yields:
[tex]=\displaystyle\frac{a(x-2y)}{-b(x-2y)}[/tex]
We can now cancel out the factor. Hence:
[tex]\displaystyle=-\frac{a}{b}[/tex]
Helpppppppp??????????????
Answer:
30
Step-by-step explanation:
a and b both equal 30
4. A food delivery service charges a $100 membership fee to join, and also charges $5 for each delivery. Find the linear equation that models the cost based on number of deliveries. At the total cost of $200, how many deliveries will have been made?
Answer:
200-100=5(x)
Step-by-step explanation:
If the total cost is 200 dollars and we spent 100 on the fee, we have 100 dolars for deliveries.
If each delivery is 5 dollars, then the amount of money spent on deliveries is x(unknown) dollars then we have 200 - 100 = 5 x <--unknown
total money^ ^fee ^each deliv
jackson hikes 220.2 meters up a mountain, if he is 60% of the way up, how tall is the mountain?
Answer:
132.12
Step-by-step explanation:
Which of the following expressions is equal to 5 - 2(x + 2)?
0 -2x+1
O 3x+6
0 -2x+2
O 3x+2
Answer:
[tex] \huge{ \boxed{ \bold{ \tt{ - 2x + 1}}}}[/tex]
♨ Question :Which of the following expressions is equal to 5 - 2 ( x + 2 ) ?♨ Available options :- 2x + 1 ✔ 3x + 6- 2x + 23x + 2✎ Step - by - step explanation[tex] \bold{ \text{5 - 2(x + 2)}}[/tex]Distribute 2 through the parentheses
[tex] \dashrightarrow{ \sf{5 - 2x - 4}}[/tex]
Now , subtract 4 from 5
[tex] \dashrightarrow{ \boxed{\sf{ - 2x + 1}}}[/tex]
Therefore , Option A is the best choice.
Hope I helped!
Have a wonderful time! ツ
~TheAnimeGirl
What is the value of x in the equation 2.5(6x - 4) = 10 + 4(1.5 +0.50) ?
Answer:
1.86
Step-by-step explanation:
Answer:
x= 1.86666666667
Step-by-step explanation:
If T (n) = 4n-1 what is the 3rd term
Chloe plz give answer :(
Answer:
im lost, hat's ur question?
Step-by-step explanation:
Answer:
:(
Step-by-step explanation:
Evaluate the expression |2x – 5| for x = –3 and for x = 3.
A)
11, 1
B)
3, 13
C)
13, 3
D)
1, 11
Answer:
Option A: 11,1 is the correct answer.
Step-by-step explanation:
The absolute value is used in the given expressions.
The absolute value represents the values of a number or variable irrespective of its sign. This means that |x| = x and |-x| = 0
Given expression is:
[tex]|2x-5|[/tex]
Putting x=3
[tex]|2(-3)-5| \\= |-6-5|\\= |-11|\\=11[/tex]
Putting x=-3
[tex]|2(3)-5| \\= |6-5|\\= |1|\\=1[/tex]
Hence,
Option A: 11,1 is the correct answer.
please help me asap
6 2/7 divided by 2 3/4
Answer:
16/7
Step-by-step explanation:
6 2/7 / 2 3/4
44/7 / 11/4
44x4/7x11
16/7
Can someone please help, ty!!
(Will mark brainliest)
Answer:
The answer is 220
Step-by-step explanation:
Let me know if you need an explanation!
Wich calculation will ALWAYS have a result greater than 1
Step-by-step explanation:
number less than 1 B.4/9+ a fraction less than 12 C. 1 3/4 - a fraction less than 3/4 D.7/8 a number less than 1
joseph is shopping for school supplies he can buy a box of 24 pens for $4.32 or a box of 36 pens for $5.76 which is a better buy?
Answer:
my name is joseph
Step-by-step explanation: