what is 6/14 x 21/30 ?
what is 6/14 x 21/30 ?
it's 0.3
3x^2 + 2x-4 = 0 help
Answer:
[tex]{ \rm{3 {x}^{2} + 2x - 4 = 0 }}[/tex]
• let's use the quadratic formular to solve the quadratic equation given.
• Considering general quadratic equation; ax² + bx + c = 0
• therefore;
[tex]{ \tt{x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} }} \\ [/tex]
a is 3b is 2c is -4• substitute following the mathematical operation rules:
[tex]{ \rm{x = \frac{ - 2 \pm \sqrt{ {2}^{2} - (4 \times 3 \times - 4) } }{(2 \times 3)} }} \\ \\ { \rm{x = \frac{ - 2 \pm52}{6} }} \\ [/tex]
• split the values:
[tex]{ \rm{either \: \{x = \frac{ - 2 + \sqrt{52} }{6} \} \: \: or \: \: \{x = \frac{ - 2 - \sqrt{52} }{6} \} }} \\ \\ { \rm{either \: \{x = 0.87 \} \: \: or \: \: \{x = - 1.54 \}}}[/tex]
The price of pears can be determined by the equation P=0.54n, where P is the price and n is the number of pears. What is the constant of proportionality (unit rate)?
Which pair of points should be used to find the line of best-fit for the scatterplot?.
On a graph, a trend line would go through points K and M.Which pair of points should be used to find the line of best-fit for the scatterplot?.
On a graph, a trend line would go through points K and M.Which pair of points should be used to find the line of best-fit for the scatterplot?.
On a graph, a trend line would go through points K and M.
Answer:
Could you give a picture or say what does the point K and M say.
Step-by-step explanation:
- 8/9x - 4/45x + 1/5x = - 70
Answer:
x = 90
Step-by-step explanation:
- [tex]\frac{8}{9}[/tex] x - [tex]\frac{4}{45}[/tex] x + [tex]\frac{1}{5}[/tex] x = - 70
Multiply through by 45 ( the LCM of 9, 45, 5 ) to clear the fractions
- 40x - 4x + 9x = - 3150 , that is
- 35x = - 3150 ( divide both sides by - 35 )
x = 90
Find the product. Your answer should be in simplest form.
1.1.7
• 7 (1 point)
3
1
O
137
21
1
2
1 그
02
3
010
I neeed help
What is
1/3 times 7
1/3 (7)
7 is essentially 7/1, so 1 x 7 7
3 x 1 3
7/3
can you plz find this witj equation
What is the measure of the complement of 65? a.135 b. 25 d. 45 c. 35
Answer:
25°Step-by-step explanation:
Complement angle is the sum of two angles forming a right angle.
Follow the given steps to find the angle:
< a + 65° = 90°
< a = 90 - 66
< a = 25°
A tire shop had to fill 2 1/2 tires with air. It took a small air pump 2 1/2 seconds to fill them up. How long will it take to fill 8 tires?
Answer:
8 seconds if tyres took 1 second each tyre as 2.5/2.5 =1
The question did specify 2 1/2 secs to fll them all up which is 1 second each x 8 = 8 sec total.
Step-by-step explanation:
2 1/2 litres = number of tyres
2 1/2 seconds taken
= if each tyre took 2 1/2 seconds the quetsion should say clear but would be
2 1/2 tyres x 2 1/2 seconds = 6.26 seconds every 2 1/2 tyres
so 8 tyres x 2 1/2 seconds = 20 seconds every 8 tyres
If the 2 1/2 seconds applied to all 2 1/2
then we need to find a multiplier for 1 tyre
Here we divide
2 1/2 / 2 1/2 = 1
8 x 1 = 8 seconds.
solve X
8-x/10=11
please help me
Answer:
x = -102
Step-by-step explanation:
Step 1: Multiply both sides by 10.
[tex]\frac{8-x}{10} * 10 = 11*10[/tex] [tex]8-x = 110[/tex] [tex]-x + 8 = 110[/tex]Step 2: Subtract 8 from both sides.
[tex]-x + 8 - 8 = 110 - 8[/tex] [tex]-x = 102[/tex]Step 3: Divide both sides by -1.
[tex]\frac{-x}{-1} = \frac{102}{-1}[/tex] [tex]x=-102[/tex]Step 4: Check if solution is correct.
[tex]\frac{8-(-102)}{10} = 11[/tex] [tex]\frac{8+102}{10}=11[/tex] [tex]\frac{110}{10}=11[/tex] [tex]11 = 11[/tex]Therefore, x = 11.
Have a lovely rest of your day/night.
a. Write the given equation in standard form.8x+3y+6=0
Answer:
8x+3y=-6
Step-by-step explanation:
what's the value :5/8+3/4×10/3÷1/3?
Answer:
Step-by-step explanation:
Answer:
3.458333!!!!
Step-by-step explanation:
5÷3+3÷4×10÷3÷1÷3=3.4583333333
what values represent the sum of 1/2 + 3/12
I already answered this, but I ain't sure ‘bout the answer that I got. So, I need clarifications, can you solve this for me please?
[tex]35x( \frac{3}{7} = \frac{1}{5} + \frac{1}{x} ) \\ = > 35x \times \frac{3}{7} = > 35x \times \frac{1}{5} + 35x \times \frac{1}{x} \\ = > 5x \times 3 = 7x + 35 \\ = > 15x = 7x + 35 \\ = > 15x - 7x = 35 \\ = > 8x = 35 \\ = > x = \frac{35}{8} \\ = > x = 4.375[/tex]
Answer:x = 4.375
[2(5 – 4) + 6(7 – 3)] ÷ 2
Answer:
13
Step-by-step explanation:
Use PEMDAS
1. 5-4=1
7-3=4
Now you have the equation: (2x1 + 6x4)/2
2. 2x1=2
6x4=24
Now you have the equation (2+24)/2
3. 2+24= 26
4. 26/2=13
So your answer is 13.
Make sense?
Answer:
13
Step-by-step explanation:
2(5 – 4) = 2
6(7 – 3) = 24
2 + 24 = 26
26 ÷ 2 = 13
Hope this helps!
pick-m-up towing company charges 40$ to hook a car and 1.70 for each mile that it is towed. write an equation that represents the total cost y for x miles towed. find the y intercept, and interpret its meaning in the context of the situation
Using linear function concepts, it is found that:
The equation for the cost of x miles towed is: [tex]y = 1.7x + 40[/tex].The y-intercept is [tex]y = 40[/tex], which means that the flat fee is $40.A linear equation for a cost has the following format:
[tex]y = mx + b[/tex]
In which:
m is the slope, which is the rate of change.b is the y-intercept, which is the fixed cost, also called flat fee.In this problem:
The y-intercept is the cost to hook a car, which is $40, thus [tex]b = 40[/tex] and the flat flee is $40.Cost of $1.70 per mile towed, thus the slope is [tex]m = 1.7[/tex].Then, the equation for the cost is given by:
[tex]y = 1.7x + 40[/tex]
A similar problem is given at https://brainly.com/question/16302622
IF 0 ≤theta°≤360°
find cos(2theta-10°)=-1/2
Answer:
θ
can be in the first quadrant
0
≤
θ
≤
90
or the fourth quadrant
270
≤
θ
≤
360
If
θ
is in the first quadrant,
then
sin
θ
=
5
13
cos
θ
=
12
13
tan
θ
=
5
12
Therefore,
sin
2
θ
=
2
sin
θ
cos
θ
=
2
×
5
13
×
12
13
=
120
169
cos
2
θ
=
cos
2
θ
−
sin
2
θ
=
(
12
13
)
2
−
(
5
13
)
2
=
144
169
−
25
169
=
119
169
If
θ
is in the fourth quadrant,
then
sin
θ
=
−
5
13
cos
θ
=
12
13
tan
θ
=
−
5
12
Therefore,
sin
2
θ
=
2
sin
θ
cos
θ
=
2
×
−
5
13
×
12
13
=
−
120
169
cos
2
θ
=
cos
2
θ
−
sin
2
θ
=
(
12
13
)
2
−
(
−
5
13
)
2
=
144
169
−
25
169
=
119
169
Charley Davis is 1/4 as old as his father. The sum of their ages is 45. How old is each? please show work
A cube has edge length 11 inches. Write an expression for its volume and an expression for its
surface area.
Answer:
volume=1331inch^3
Surface area=726inch^2
Step-by-step explanation:
Answer:
Volume:11
3
=1331
Surfacearea:11
2
×6=726
What is the solution to the system of linear equations? 2x + 3y = 3 3x + 5y = 5 Enter you answer into the boxes.
Answer:
x = 0
y = 1
Step-by-step explanation:
2x + 3y = 3 Multiply this equation by 3
3x + 5y = 5 Multiply this equation by 2
3(2x + 3y = 3)
6x + 9y = 9
2(3x + 5y = 5 )
6x + 10y = 10 Notice the xs are the same.
6x + 9y = 9
6x + 10y =10 Subtract
- y = - 1 Multiply each side by -1
y = 1
2x + 3y = 3
2x + 3*1 = 3
2x = 0
x =0
20 divided by 4 1/2 help, i wil give brainlist if have the step by step
Answer:
40/9 or 4 4/9
Step-by-step explanation:
i need the original slope and parallel slope
Answer:
Slope is -2/3
Parallel slope is the same just draw another line with the same slope but a different y-intercept
Step-by-step explanation:
Look at #4 and 5 only I’m struggling
Answer:
You have to multiply the input 3 times to get the output.
In a high school basketball game, a player on the home team makes two free throws. One student asks the student next to her what he thinks the probability of hitting two free throws in a row is. The student replies, "The probability of him making a free throw is probably about .6, so hitting two free throws is probably about 1.2." Why can this immediately be dismissed as incorrect?
A.
The final number, 1.2, is a fraction, which can never represent a probability.
B.
The probability of making a free throw can never be .6.
C.
The probability of an event happening twice in a row can never be equal.
D.
The final number is greater than 1, which is not a valid probability.
Answer:
DStep-by-step explanation:
The probability can be expressed as a number between 0 and 1 or a percent value between zero and 100%.
Correct choice is:
D. The final number is greater than 1, which is not a valid probability.8. In the figure ir 10. find value of 22 and 23.
Answer:
I am not sure what you're asking, but the other side of #2 should be the same degree/the missing one has the same degree as #2, just like how #3 is the same as #1 in degrees. if you plug in #1 + #2 you'd get 180 degrees, same thing with the #3 + the missing degree
If BD−→− bisects ∠ABC, then D lies in the interior of ∠ABC. D lies in the interior of ∠ABC.
True or false?
Answer:
Step-by-step explanation: false
It is true that if BD bisects ∠ABC, then D lies in the interior of ∠ABC
What are the types of triangle ?There are three types of triangle and they are
Isosceles triangle in which two sides and two angles are same.
Equilateral triangle in which all the sides and angles are equal.
Scalene triangle in which none of the sides and angles are equal.
According to the given question
If BD bisects ∠ABC, then D lies in the interior of ∠ABC and it is true.
If we draw any line from the vertex B which passes through inside the given triangle then it lies in the interior of [tex]\angle B[/tex].
learn more about triangles here :
https://brainly.com/question/4164600
#SPJ2
NEED HELP ASAP 50 POINTS PLEASE HELP: Evaluate the expression. {[(12−36)÷(−12)]2−20}÷(−4) What is the value of the expression?
Answer:
56
Step-by-step explanation:
The required simplified value of the given expression is 4.
Given that,
An expression is given, {[(12−36)÷(−12)]2−20}÷(−4 a simplified value of the expression is to be determined.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Simplifying,
= {[(12−36)÷(−12)]2−20}÷(−4)
=[ [-24/-12]2-20] / - 4
=[4-20] / - 4
= -16/-4
= 4
Thus, the required simplified value of the given expression is 4.
Learn more about simplification here: https://brainly.com/question/12501526
#SPJ5
Can anyone help me with this? i dont need a graph i just need the answer for it
A 3 fl oz bottle of orange juice costs $21 and a 6 fl oz. bottle of orange juice
costs $36. Which is a better buy?
Answer:
6floz bottle of orange juice.
Step-by-step explanation:
21*2=42
$42 for 6floz of juice vs $36 for the same amount. 36 is the better deal!
Answer:
6 fl oz. bottle of orange juice
Step-by-step explanation:
For the 6 fl oz bottle to be equal to the 3fl oz bottle prize, it would need to cost 42, but since it only costs 36$, it would be the better deal.
-kiniwih426
what is the aswer ??????
Answer:
A prime numbers are numbers which have only two factor