what is - 7/10 + (- 5/6) =
-7/10 + (-5/6) = -(7/10 + 5/6) =
= -(21/30 + 25/30) = -46/30 =
= -1 16/30 = -1 8/15 ← the end
please help i will give extra points
Answer:
3^2 + 21 /3
9 + 7
16✓
Answer
Which of the equations below could be the equation of this parabola?
Vertex
(0, 0)
0
10
ОА
A. x = - 1 2 3 4
B. y = - 1/2 x ²
C. x = 1 / 4²
Do y = x
Answer:
the answer is "B"
the "a" (as in ax^2) is negative thus the parabola "goes downward"
Step-by-step explanation:
The equation of parabola is,
y = - 1/2x²
What is Parabola?A parabola is a U-shaped plane curve where any point is at an equal distance from a fixed point (known as the focus) and from a fixed straight line, which is known as the directrix.
We have to given that;
In a parabola,
Vertex = (0, 0)
Since, We know that;
Standard form of equation of parabola is,
y = a (x - h)² + k
Where, (h, k) = (0, 0) = vertex
Hence, We get;
y = a (x - 0)² + 0
y = ax²
Here, A point on parabola is, (2, - 2)
- 2 = a (2)²
a = - 2 / 4
a = - 1/2
Hence, The equation of parabola is,
y = - 1/2x²
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How do I write three fourths of a number is 12 as an equation?
Answer:
[tex] \frac{3}{4} n = 12[/tex]
Step-by-step explanation:
let the number be n :
[tex] \frac{3}{4} \: of \: n = 12 \\ \\ \frac{3}{4} n = 12[/tex]
further more:
[tex]3n = 12 \times 4 \\ n = \frac{12 \times 4}{3} \\ \\ n = 4 \times 4 \\ n = 16[/tex]
Answer:
3x4=12
Step-by-step explanation:
Show that |3| + |10| = |3| + |10|
Answer:
/10/=/-10/=10 ; /3/=/-3/=3
=> /3/+/10/=/3/+/10/=3+10=13
Step-by-step explanation:
Convert 8 2/3% into a decimal.
Answer:
the answer is = 0.08666666666
The decimal value of 8 2/3% is 866.677.
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
8 2/3% into decimal.
So, 8 2/3%
= 26/3 %
= 26 /3 x 100
= 8.6666667 x 100
=866.6777
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The product of w and 2 is greater than -29
Answer:
2w>-29
Step-by-step explanation:
Simplified it's w> -14.5
help with this math question plz
Answer: The length of LK is 40.
Step-by-step explanation:
LK = 6x+10
KM = 2x+8
LM = 58
so
LM = LK + KM
or, 58 = 6x+10+2x+8
or, 58 = 8x + 18
or, 58-18 = 8x
or, 8x = 40
so, x = 5
now
LK = 6x + 10
= 6*5+10
= 30 +10
= 40
Solve for F. m/F = 1/a
Answer:
F = ma
Step-by-step explanation:
Given
[tex]\frac{m}{F}[/tex] = [tex]\frac{1}{a}[/tex] ( cross- multiply )
F = ma
A camera cost 115 Canadian dollars if each Canadian dollar is worth 0.950 to US dollars how much will the camera cost in the US dollars
Answer:
109.25 US dollars
Step-by-step explanation:
115 * 0950
Cost of the item is $ 60.30, the tax rate is 5.6% What
la the tax?
Answer:
$3.378 or $3.38 rounded
Solve the equation.
6(x + 7) = 5(x - 7) + x
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution is
(Simplify your answer.)
OB. The solution is all real numbers.
O C. There is no solution.
(Answer quickly)
Answer:C
Step-by-step explanation:
6(x+7)=5(x-7)+x
⇔6x+42=5x-35+x
⇔6x-5x-x=-35-42
⇔0x=-77
I need the answerrrrrrrrrrrrrrrrrrrrrrrr I HATE GEOMETRY AND I NEED TO GET MY GRADES UP CAUSE I NEED MY PHONE BACK.
Answer:
The bisector is line l
mq = 7
Step-by-step explanation:
To find x:
[tex]5x-3=11-2x\\\\+2x+3 +3 +2x\\\\\\7x=14\\x=2[/tex]
To find the value of mq
plug in the value of x into the equation.
[tex]11-2x\\11-2(2)\\11-4\\=7[/tex]
MQ = 7
Hope this is helpful! Please leave a review and comment below! Thanks for all your support!
b. B
Step-by-step explanation:PM = RM
[tex]5x - 3 = 11 - 2x[/tex]
[tex]5x + 2x = 11 + 3[/tex]
[tex]7x = 14[/tex]
[tex]x \times 2[/tex]
MQ = [tex]11 - 2x[/tex]
[tex]11 - 2 \times 2[/tex]
[tex]11 - 4[/tex]
[tex] = 7[/tex]
In a class of twenty-seven students, twelve are boys. What part of the
class consists of boys?
2.
Match the graph of the function with the function rule.
A. [tex]y=\frac{1}{4}[/tex]·4^x
B. y = 1 • 4x
C. [tex]y=\frac{1}{2}[/tex]·4^x
D. y = 2 • 4x
Answer:
C) [tex]y = \frac{1}{2}[/tex] × [tex]4^x[/tex]
Answer:
C. y= 1/2*4^x
Step-by-step explanation:
if a and b are roots of the equation ax²+bx+c=0 obtain the value of a/b +b/a
[tex]\\ \sf\longmapsto \dfrac{a}{b}+\dfrac{b}{a}[/tex]
[tex]\\ \sf\longmapsto \dfrac{a^2+b^2}{ab}[/tex]
[tex]\\ \sf\longmapsto \dfrac{(a+b)^2-2ab}{ab}[/tex]
find the greatest common factor of 20 and 40
Answer:
20,10,5,4,2,1
Step-by-step explanation:
Question 9 (5 points)
image
The measure of arc CD is 175°. Determine the measure of ∠DBC.
Question 9 options:
1)
175°
2)
87.5°
3)
5°
4)
350°
Answer:
175 degrees!!!!!!!!
Step-by-step explanation:
What shape is always created in graphing the addition of two vectors?
You could use the parallelogram rule to add the vectors, or you could use the tip-to-tail method (your textbook might call it the "head to tail method" but it's the same idea).
An example of the parallelogram method is shown below with adding the vector u = (-4,4) in red to the vector v = (8,2) in blue to get the vector w = (4,6) in green. The green resultant vector is one of the diagonals of the parallelogram
Side note: The other diagonal is either u-v or v-u depending on your reference point.
What is the value of p?
A.60°
B. 40°
C. 90°
D. 50°
Answer:
D . p = 50
Step-by-step explanation:
To find the value of p we first need to find the values of inner angles
180 - 140 (linear pair)
= 40
180 -90 (linear pair)
= 90
now use angle sum property of triangle
40 + 90 + p = 180
130 + p = 180
p = 180 - 130
p = 50
A store in Iowa advertises that during their Labor Day sale, everything is 25% off, plus they will pay the sales tax. Mike buys shoes for $80 and socks for $5. Since there will be no tax added, what is the final price for Mike’s purchase?
9514 1404 393
Answer:
$63.75
Step-by-step explanation:
Mike's final price will be 1-25% = 75% of the marked price.
($80 +5)(0.75) = $63.75
The final price for Mike's purchase is $63.75.
Inverse for f(x)=1/2x+3
Answer: [tex]f^{-1}(x)=2x-6[/tex]
Step-by-step explanation:
To find the inverse, we want to switch the y with x and x with y. Once we do that, we solve for y.
[tex]y=\frac{1}{2}x+3[/tex] [switch x and y]
[tex]x=\frac{1}{2}y+3[/tex] [subtract both sides by 3]
[tex]x-3=\frac{1}{2} y[/tex] [multiply both sides by 2]
[tex]y=2x-6[/tex]
Now, we know that [tex]f^{-1}(x)=2x-6[/tex].
Set theory Need answers quick
Answer:
4. {2,4,6,8}
5. [(-2, -1), (1, 8)}
9. {0, 2}
Step-by-step explanation:
The intersection of the given sets is the set that contains elements common to all of the given the sets.
If the points on a scatterplot are clustered in a pattern that extends from the upper left to the lower right, this would suggest that the two variables depicted are: ________
a. normally distributed.
b. positively correlated.
c. regressing toward the average.
d. negatively correlated.
Answer:
B
Explanation:
im doing this for points :D
Find an equation of a line that has a slope 7 and passes through the point 3,11
Order from least to greatest
√6, -5.25 , 3/2 , 5
Answer: 5.25, 3/2, the square root of 6, 5
Step-by-step explanation:
name the value of the digit 484,002,000 and the 8 is underlined.
Answer:
ITS 80,000,000
A motorboat travels 448 kilometers in 8 hours going upstream and 440 kilometers in 5 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
9514 1404 393
Answer:
boat: 72 km/hcurrent: 16 km/hStep-by-step explanation:
The speed difference between boat and current is the upstream rate:
(448 km)/(8 h) = 56 km/h
The sum of speeds of boat and current is the downstream rate:
(440 km)/(5 h) = 88 km/h
The rate of the boat is half the sum of these:
(56 +88)/2 = 72 . . . km/h
The rate of the current is half their difference:
(88 -56)/2 = 16 . . . km/h
The rate of the boat is 72 km/h; the rate of the current is 16 km/h.
Round 17.20947 to the nearest
hundredth.
Which number has a 6 that is 1/10 of the value of the 6 in 7,639
Answer:
60
Step-by-step explanation:
the 6 in 7639 has a value of 600
600/10 = 60
