We want to see for which values of x does the rational expression make sense. We will see that the expression makes sense for x ≤ 0
We know that the argument of a square root can only be a real number equal to or larger than zero.
In this case, we have the expression:
[tex]\sqrt{(-2x)^2} = (\sqrt{-2x} )^2[/tex]
One would want to directly cancel the square root with the 2 exponent, but we can't do that, because in the right-side expression we would have a complex number if the argument is smaller than zero.
The first thing we need to do is to make the argument equal or larger than zero:
-2x ≥ 0
x ≤ 0/-2
x ≤ 0
So the given expression only makes sense for x ≤ 0
If you want to learn more about rational expressions, you can read:
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Answer: No, the answer is All Real Numbers
Step-by-step explanation: e
X
х
a) Work out (8 x 10^-3)(2 x 10^-4
Give your answer in
standard form.
(
Answer:
1.6 x 10^-6.
Step-by-step explanation:
a) Work out (8 x 10^-3)(2 x 10^-4)
= 8 x 2 x 10^(-3 + -4)
= 16 x 10^-7
Convert this to standard form by dividing the first part by 10 and multiplying the second by 10.
= 1.6 x 10^-6.
Kayla states the following about the graph of
y = (x + 5) (x - 5) (x + 3)
This equation is 2nd-degree so both arrows will be pointing
the same way.
The ends of the equation will both be pointing up since the
leading coefficient is positive.
Describe in words, in as many ways as you know how, how you
would tell this student whether they were right or wrong.
Answer:
x^1=-5, x^2=-3, x^3=5
Step-by-step explanation:
11. Which solution for the value of x in the figure below is incorrect? Explain a. 3X -44=x-24 2x - 44 = -24 2x = 20 (3x-440) b. 3x - 44 + x - 24 = 180 4x - 68 = 180 4x = 248 X = 10 (x-249) x = 62
Answer:
Theradius is 16 + 9 = 5. The equation of thecircle is2 2( x− 4) + ( y− 3) = 25. 53.54.x2 + y2 – 4 x ...
A linear model for the situation below passes through the origin. A manufacturer can produce 4,200 gears in 8 hours. How many gears can be made in 1 hour? values of the following algebraic expressions : L 3c2; 72/3; 5a&; ... 2x^-x^-3x-^ by 2 x'^ - 3 x~^ - x-^ ; a" - 1 + ft- " by a^ + ft~i ...
Step-by-step explanation:
A less character after a greater in10 = X. creases its value, as XI X+I, ... the root of each and set one above the other; as, % is the square root of 3X.180 / 90 / 15 lm | 12 VDC | 3 W module | 16 Wh battery | white | ... 48 VDC | PV 23,6 kW | 4 x VE SmartSolar MPPT 25 / 100-TR | 3x VE .
Use algebra to show that, for this machine, if x is a a-1
Help me please thank you 20 pts
Answer:
[tex]x = a - 1[/tex]
Step-by-step explanation:
from what you told me you put it in a formula
so I says it in a algebraic format
What is the slope for M(4,-8 negative) N(6,-1 negative)
Answer:
m=7/2
Step-by-step explanation:
PLEASE HELP!! I WILL MARK BRAINLIST IF RIGHT!Jace buys a case of soda. A case contains 24 cans of soda and costs $5.28. Jace will sell each can of soda for $0.75 at the basketball game. How much profit will Jace earn if he sells all of the cans of soda? (Picture below)
Answer:
d
Step-by-step explanation:
Answer:
$12.72
Step-by-step explanation:
0.75*24=18 dollars-5.28=12.72 dollars
Please help! 20 points! Will give brainliest!
Answer:
2 and 4 are correct
Step-by-step explanation:
Hope this helps!❄︎
please please help! it’s due today and i don’t get it
Answer:
Well the value of (X) is 0
Step-by-step explanation:
Well the value of (X) is always 0
The Radius of a circle is 5 cm. Find the area of the circle, correct to one decimal place.
Answer:
78.5
Step-by-step explanation:
[tex]r^{2}[/tex]x3.14 (pie)
so then substitute.
5x5=25
25x3.14=78.5
The hypotenuse of a right triangle measures 19 cm and one of its legs measures 4 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer:
18.9
Step-by-step explanation:
CAN SOMEONE HELP ME PLEASE ASAP!
answer is 10,029 ft/h if I'm not wrong
7. E(5, 4), F(8, 1) what is the slope of the line
Answer:
-1
Step-by-step explanation:
m = y2 - y1 / x2 - x1
= 1 - 4 / 8 - 5
= -3 / 3
= -1
Help!!!!!!!!!!!!!!!!!
Use the bar diagram section
The number of employees for a certain company has been decreasing each year by 4%. If the company currently has 710 employees and this rate continues, find the number of employees in 11 years.
Answer:
Answer is A
Step-by-step explanation:
What is the distance between points A and B?
A
B
-87-6 5 4 3 -2 -1
0
-
3
2
-
5
4
+
7
6
8
- 6 units
-1 units
O 5 units
6 units
Answer:
6 units
Step-by-step explanation:
Just count
The distance between points A and B is 6 units.
What is Subtraction?Subtraction can be done for any numbers or algebraic expressions. It is the process of taking out certain value from a given amount of number.
The process of subtraction can also be termed as finding difference.
In geometry, Distance between two points will be always a positive number.
Distance will be 0, if the points coincide.
Here on a number line, A is marked at -5 and B at 1.
We have to find the distance between A and B.
Distance between A and B = 1 - -5 = 1 + 5 = 6 units
Hence distance between A and B is 6 units.
Learn more about Distances in Geometry here :
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Write a function that represents the relationship between X and y shown in the graph below
==============================================================
Explanation:
Select any two points from the diagonal line. I'll pick (0,-10) and (2,-4).
Use these points in the slope formula
m = (y2 - y1)/(x2 - x1)
m = (-4 - (-10))/(2 - 0)
m = (-4 + 10)/(2 - 0)
m = 6/2
m = 3
The slope is 3.
The y intercept is b = -10 since this is the location where the diagonal line crosses the vertical y axis.
The values m = 3 and b = -10 have us go from y = mx+b to y = 3x-10
I need help. Please
A diagram is shown below.
====================================================
Explanation:
First we make a copy of AB. Then we tack on a copy of CD onto AB. Check out the diagram below to see what I mean. The segments AB and CD glue together to form the larger segment AD. We can say AB+CD = AD. Dividing that larger segment in half will locate the midpoint and it will help us average the lengths of AB and CD. It's the visual or geometric meaning of what "average" means.
To find the midpoint of any segment, we involve the process of finding the perpendicular bisector. Recall that "bisect" means to "cut in half". The perpendicular bisector of XM is point Y, and XY is exactly half that of segment AD.
------------
Check out the diagram below.
Figure 1 is the two segments separated, and figure 2 has us glue them together to form segment AD. Segment AD is renamed to XZ. Finding the perpendicular bisector of XZ leads to point Y at the midpoint and [tex]\text{XY} = \frac{\text{AB+CD}}{2}[/tex], which is shown in figure 3.
answer it pls
pls
pls
Answer:
The probability that a letter at random is from V is 5/26 or 19.23%
what is the answer ?????
Answer:
4.8÷40=4.8÷4÷10
=0.12
0.12=12/100
=3/25
Step-by-step explanation:
Part 1.
Our equation is [tex]4.8[/tex]÷[tex]40=0.12[/tex]
Part 2.
[tex]^{12}/_{100[/tex] = [tex]^{3}/_{25[/tex] as simplest form
What bed level deviation is considered precise.
Answer: A levelling map viewed in Optoprint shows a 0.7mm deviation 'high' in the rear right corner vs the front left 'home' position of the bed.
Step-by-step explanation:
Graph the line with slope 3/4 passing through the point (1,5). 20 points!
Answer:
y = (3/4)x + 17/4
Step-by-step explanation:
since we know the slope is 3/4, we have y = 3/4x + b. next plug in the point given. 5= 3/4(1) + b, simplify the equation to get 17/4=b, and now we have our equation: y = 3/4x + 17/4
Use completing the square to solve this quadratic equation.
Check all that apply.
x2 + 6x + 9 = 2
A. x = 3 + 4/5
B. x= -3 +2
c. x= 3 - 5
D. =-3-
Step-by-step explanation:
x² + 6x + 9 = 2
(x + 3)² = 2
x + 3 = ±sqrt(2)
x = -3 ± sqrt(2)
so, B and D are correct.
control :
(-3 + sqrt(2))² + 6(-3 + sqrt(2)) + 9 = 2
9 + 2 - 6sqrt(2) - 18 + 6sqrt(2) + 9 = 2
2 = 2
correct
(-3 - sqrt(2))² + 6(-3 - sqrt(2)) + 9 = 2
9 + 2 + 6sqrt(2) - 18 - 6sqrt(2) + 9 = 2
2 = 2
correct
(3 + sqrt(2))² + 6(3 + sqrt(2)) + 9 = 2
9 + 2 + 6sqrt(2) + 18 + 6sqrt(2) + 9 = 2
38 + 12sqrt(2) = 2
wrong.
(3 - sqrt(2))² + 6(3 - sqrt(2)) + 9 = 2
9 + 2 - 6sqrt(2) + 18 - 6sqrt(2) + 9 = 2
38 - 12sqrt(2) = 2
wrong.
factorize the expression below pls help giving brainliest
Answer:
See answer below
Step-by-step explanation:
2b(2ab)² - a(2b²)² = XaY³(z - b)
[tex]2b(2ab)(2ab) - a(2b^2)(2b^2) = XaY^3(z-b)[/tex]
[tex]8a^2b^3 - 4ab^4 = XaY^3(z - b)[/tex]
[tex]4ab^3(2a-b) = XaY^3(z - b)[/tex]
X = 4
y = b
z = 2a
What is the answer to the question below, I have been working on it for a while. Plz help!
The quotient of 10 times m and 7
Answer:
10m / 7
Step-by-step explanation:
times = multiplication of 10 and variable m
quotient of = division of 7
What value of n make the equation true ?
-15 n + 7 = 2
28.5 is 30% of what number
Answer: 28.5 is what percent of 30? = 95.
Step-by-step explanation:
help i don’t get it
Answer:
2.2+3(3.4)
=2.2+10.2
=12.4
Step-by-step explanation:
What equation represents this sentence?
28 is the quotient of a number and 4.
28=n4
4=n28
4=28n
28=4n
The equation represents this sentence"28 is the quotient of a number and 4" will be n/4=28.
What is an equation?Equations are statements that affirm the equivalence of two expressions that are joined by the equals symbol "=". An equal sign ("=") links two expressions together to form an equation. The two expressions on each side of the equals sign are referred to as the "left-hand side" and "right-hand side" of the equation. The right side of an equation is typically assumed to be zero.
It is given that, 28 is the quotient of a number and 4.
The number being divided is referred to as the dividend, and the number being divided by it is referred to as the divisor. The quotient is the outcome of the division.
Suppose the number is n,
n/4=28
Thus, the equation represents this sentence"28 is the quotient of a number, and 4" will be n/4=28.
Learn more about the equation here,
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I need help im horrible at math and who ever does this for me please i will give you 100 pts and brainliest
Answer:
1/4 > 1/9
Step-by-step explanation:
Answer:
Step-by-step explanation:
mhmh idek man
what is the answer??????
Answer:
1) A 1 1/3 2) C 1 5/12
Step-by-step explanation:
1) 2/6+4/8+5/10
Reduce 4/8 with 4 and 5/10 with 5.
2/6+1/2+1/2
Reduce 2/6 with 2.
1/3+1/2+1/2
Add fractions with a common denominator.
1/3+2/2
Reduce 2/2 with 1
1/3+1
Write all numerators above the common denominator.
1+3/3
Calculate.
4/3 = 1 1/3
2) 2 3/4 - 1 1/3
Change to improper fractions.
11/4 - 4/3
Write all numerators above the common denominator.
33-16/12
Calculate.
17/12 = 1 5/12
Hope this helps :)