Answer: 7<x<37
Step-by-step explanation:
Anja simplified the expression StartFraction 10 x Superscript negative 5 Baseline Over Negative 5 x Superscript 10 Baseline EndFraction to StartFraction 15 Over x Superscript 15 Baseline EndFraction. What mistake did Anja make? She divided the exponents instead of subtracting them. She divided the coefficients instead of subtracting them. She subtracted the coefficients instead of dividing them. She subtracted the exponents instead of dividing them.
The mistake that Anja made during the simplification of the considered expression is given by: Option C: She subtracted the coefficients instead of dividing them
What are coefficients?Constants who are in multiplication with variables are called coefficients of those variables.
For example, in [tex]10x^2[/tex] we have 10 as coefficient of [tex]x^2[/tex]
Those variables who have got no visible coefficient has 1 as their coefficient. Thus, [tex]x^2[/tex] has got its coefficient as 1. It is true since 1 multiplied with any number is that number itself.( [tex]x^2 = 1 \times x^2[/tex] )
What are some basic properties of exponentiation?If we have [tex]a^b[/tex] then 'a' is called base and 'b' is called power or exponent and we call it "a is raised to the power b" (this statement might change from text to text slightly).
Exponentiation(the process of raising some number to some power) have some basic rules as:
[tex]a^{-b} = \dfrac{1}{a^b}\\\\a^0 = 1 (a \neq 0)\\\\a^1 = a\\\\(a^b)^c = a^{b \times c}\\\\ a^b \times a^c = a^{b+c} \\\\^n\sqrt{a} = a^{1/n} \\\\(ab)^c = a^c \times b^c[/tex]
For the considered situation, the expression that Anja is simplifying is:
[tex]\dfrac{10x^{-5}}{-5x^{10}}[/tex]
Anja simplified it to [tex]\dfrac{15}{x^{15}}[/tex]
She performed operations with variable 'x' correctly since
[tex]\dfrac{x^{-5}}{x^{10}} = \dfrac{1}{x^5} \times \dfrac{1}{x^{10}} = \dfrac{1}{x^{15}}[/tex]
But coefficients will also get divided. Instead of dividing 10 by -5, she subtracted them (as 10 - (-5) = 10 + 5 = 15)
This was her mistake.
The correct simplification would be: [tex]\dfrac{10x^{-5}}{-5x^{10}} = \dfrac{10}{-5} \times \dfrac{x^{-5}}{x^{10}} = -2 \times \dfrac{1}{x^{15}} = \dfrac{-2}{x^{15}} = -2x^{-15}[/tex]
Thus, the mistake that Anja made during the simplification of the considered expression is given by: Option C: She subtracted the coefficients instead of dividing them
Learn more about exponent and bases here:
https://brainly.com/question/847241
Answer: c
Step-by-step explanation:
Find the length of the third side. If necessary, round to the nearest tenth. 4 5
Solution :
We'll solve this using the Pythagorean TheoremLet,
Let AB be Base.4 be BC, where BC is the Perpendicular.5 be AC, where AC is the Hypotenuse.We know that,
[tex]{ \longrightarrow \bf \qquad \: (AB) {}^{2} +( BC) {}^{2} = (AC) {}^{2} }[/tex]
[tex]{ \longrightarrow \sf \qquad \: (AB) {}^{2} +( 4) {}^{2} = (5) {}^{2} }[/tex]
[tex]{ \longrightarrow \sf \qquad \: (AB) {}^{2} = (5) {}^{2} - ( 4) {}^{2} }[/tex]
[tex]{ \longrightarrow \sf \qquad \: AB = \sqrt{(5) {}^{2} - ( 4) {}^{2}} }[/tex]
[tex]{ \longrightarrow \sf \qquad \: AB = \sqrt{25 - 16 }}[/tex]
[tex]{ \longrightarrow \sf \qquad \: AB = \sqrt{9 }}[/tex]
[tex]{ \longrightarrow {\pmb {\bf\qquad \: AB = 3}}}[/tex]
Therefore,
The length of the third side is 3 .Ami is 160cm tall.
The ratio of Ami's height to Nadia's height is 8 : 7
Work out how many centimetres taller Ami is than Nadia.
Select all the terms that apply to the shape
Which expression is equivalent to -6 - (-2)?
Choose 1 answer
А
- 6+2
B
-6+ (-2)
С
-2+6
D
2 + 6
Answer:
A: -6 + 2
Step-by-step explanation:
remember two negative signs makes a positive sign
HELP due in 5 mins.. Reference books are for use in the library. There are 16 bookshelves for the reference books. After use, they need to be returned to a special collection box for shelving. If 128 reference books are in use and 84 reference books are in the collection box, how many reference books are on the shelf?
Answer:
The answer is 13.25 I'm so sorry if its incorrect please let me know so I can fix it
∆(AXY) ~ ∆(ABC). What is the value of x? Round off to nearest thousandths.Immersive Reader
Answer:
The value of x round to the nearest tenth is 12.04
Step-by-step explanation:
We have used trigonometric ratios to calculate the required value.
kaylin buys a greeting card for $3.79. she then buys 4 postcards that all cost the same amount. the total cost is $5.11. how much is each postcard. show your work
i need the answer today
Answer:
Step-by-step explanation:
Givens
Greeting Card = 3.79
Total Cost = 5.11
Post cards = x
Equation
Total Cost = Greeting Card + 4x
Solution
Substitute the gives into the equation
5.11 = 3.79 + 4x Subtract 3.79 from both sides
5.11 - 3.79 = 3.79 - 3.79 + 4x Combine
1.32 = 4x Divide by 4
1.32/4 = 4x/4
x = 33
Each post card costs 0.33 dollars
Use the Distributive
Property to rewrite 8(16) + 8(6). Then evaluate the
expression.
Answer:
see explanation
Step-by-step explanation:
8(16) + 8(6) ← factor out 8 from each term
= 8(16 + 6)
= 8(22)
= 8 × 22
= 176
rotate shape A 180°
please help asap
(-2,-4) , (-2, -3) , (-4, -3)
when you rotate 180° then the x and y of each point will become the opposite
Answer:
(x-2,y-4), (x-2,y-3) and (x-4,-y3)
Step-by-step explanation:
The rule is (x,y)-->(-x,-y) so
(x2,y4)=(x-2,y-4)
(x2,y3)=(x-2,y-3)
(x4,y3)=(x-4,-y3)
never mined rong center point It would not let me change any thange
simplify : 5(a-4) /3-7(a-2)/2
Answer:The solution is in the attached file
Step-by-step explanation:
Part 1 of 2
Together, teammates Pedro and Ricky got 2690 base hits last season. Pedro had 284 more hits than Ricky. How many hits did each player have?
Subtract the difference:
2690 - 284 = 2406
Divide by 2:
2406 / 2 = 1203
Ricky Had 1,203
Pedro had 1203 + 284 = 1,487
What angle relationship is shown
Answer:
see explanation
Step-by-step explanation:
the 2 angles are on opposite sides of the transversal and outside the parallel lines.
the 2 angles are alternate exterior angles
gerad wrote down the sum of the swuares of two numbers as shown. Unfortunately sone of the digits cannkt be seen because they are covered in ink. What is the last digit of the first number? Please I really need this for a test.
The equation of the sum of any two squares x and y is x^2 + y^2 = (x + y)^2 - 2xy
How to determine the last digitThe question is incomplete, as there are no parameters to determine the last digit of the first number.
So, I will give a general explanation
The sum of squares of two numbers x and y is:
[tex]x^2 + y^2 = (x + y)^2 - 2xy[/tex]
Assume the numbers are 5 and 6, then the equation becomes
[tex]5^2 + 6^2 = (5 + 6)^2 - 2*5*6[/tex]
Evaluate
[tex]5^2 + 6^2 = 61[/tex]
Read more about sum of squares at:
https://brainly.com/question/52031
10h+30+50j its khan academy
Answer:
The answer is B- 10h( h+3+5j) AND C- 2(5h+15+25j)
what is 0.75 divided by 300
Answer:
0.0073
Step-by-step explanation:
<3
Answer:
0.0025
Step-by-step explanation:
This is because , you have the number 75, and dividing that by 3 is 25, but since our number is 0.75, that means we are adding the 2 zeros from our 300 and add it on to be to 0.0025, this won’t work in some situations.
Hope that helps!
I have 0ne mango I eat half how much left.
Answer:
half
Step-by-step explanation:
Answer:
1/2 of the mango or half
Step-by-step explanation:
A triangle has two sides of length 1 and 14. What is the largest possible whole-number length for the third side?
Answer:
14
Step-by-step explanation:
The triangle inequality is usually expressed as ...
a +b > c
for any permutation of a, b, c.
Here, that would mean ...
1 + 14 > c
c < 15
The largest whole-number value that the third side (c) can have is 14.
_____
Additional comments
Some authors write the triangle inequality as ...
a +b ≥ c
If you use that version, the longest side could be 15. Such a "triangle" would look like a line segment, and have zero area.
__
We can also check the shortest length:
c +1 > 14
c > 13
The smallest whole-number value for the shortest side is also 14. That is, the only triangle with whole-number side lengths of 1 and 14 will be an isosceles triangle with two sides of length 14.
Please help only have 10 mins to finish this test
Answer:
The maximum height (vertex) is at (0,256), which is also when it began (Y-Intercept). It will take 4 units for it to hit the ground.
Let us know how you do on the test.
For which equation does the point (2, 6) represent a possible solution?
someone pls help me ill give you 32 points
Answer:
the answer is C.
Step-by-step explanation:
if you divide 10 divided by 2 it gives you 5 and then subtract it by 2.2 = 2.8
there goes your answer.
Answer now will give brainless
Answer:
square root graph
Step-by-step explanation:
this is the graph given by a square root function
among the following below which of these represents a plane
a. needle
b. screen of a cellphone
c. stars in the sky
d. tip of a pen
Answer:
B
Step-by-step explanation:
among the following below which of these represents a plane screen of a cellphone .
Solve *
-X? + 7x + 5 = 0
-7 - V69-7+ V69
-2.
-2
7+ V69
a.
7- V69
-2
C.
-2
|-7- 29
-7+29
b
d.
-7 - V50 -7+ 50
-2
-2
-2.
-2.
А
B.
С
O
D
Answer:
the correct answer is : b
When two variables move together, they are said to be negatively correlated?.
2cm:5m into simplest form
Answer:
1m=100cm
Step-by-step explanation:
do it correctly, sooo ya
if arc BC is 182° in the measure of arc AC is 78°, what is the measure of angle 1?
Answer: 52 degrees
Step-by-step explanation:
A banner is hung for a party. The distance from a point on the bottom edge of the banner to the floor can be determined by using the function f(x) = 0.25 x2 − x + 9.5 , where x is the distance, in feet, of the point from the left end of the banner. How high above the floor is the lowest point on the bottom edge of the banner? Explain.
That's possible when function tends to zero
[tex]\\ \rm\hookrightarrow 0.25x^2-x+9.5=0[/tex]
[tex]\\ \rm\hookrightarrow 1/4x^2-x+19/2=0[/tex]
[tex]\\ \rm\hookrightarrow x^2-x+38=0[/tex]
[tex]\\ \rm\hookrightarrow x=\dfrac{1\pm\sqrt{1-152}}{2}[/tex]
[tex]\\ \rm\hookrightarrow x=\dfrac{1\pm\sqrt{151}i}{2}[/tex]
Answer:
8.5 ft
Step-by-step explanation:
[tex]f(x) = 0.25x^2 - x + 9.5[/tex]
To find the minimum point of the function, differentiate:
[tex]f'(x) = 0.5x - 1[/tex]
set to zero and solve for x:
[tex]f'(x) =0\\ \implies0.5x - 1=0\\\implies x=2[/tex]
Substitute found value of x into function to find y (height):
[tex]f(2) = 0.25(2)^2 - 2 + 9.5=8.5[/tex]
Therefore, the lowest point on the bottom edge of the banner is 8.5 ft above the floor.
What is the volume of this composite solid?
What is the ordered pair in the solution set of 0. 5x-2y=3
Answer:
See Below
Step-by-step explanation:
The left side of the equation HAS TO BE GREATER THAN 3
So we take each ordered pair (x,y), plug it into the expression of left side of inequality and see which one is GREATER THAN 3. That's our answer.
A:
0.5x - 2y
0.5(-2) -2(0.5) = -2
NO
B:
0.5x - 2y
0.5(2) -2(1) = -1
NO
C:
0.5x -2y
0.5(2) -2(-1) = 3
NO
D:
0.5x -2y
0.5(-2) -2(-0.5) = 0
NO
None of them are solutions. C would have been a solution if the inequality had an "EQUAL SIGN" -- but it doesn't. Maybe the question is wrong, but if the question is right, then there is no correct answer.