Answer:
you can prove it by making the first 2 expression less than the last 2 expressions
Step-by-step explanation:
(x-3)(x+7)-(x+5)(x-1)
(x-3)(x+7) < (x+5)(x-1)
x^2 +4x-21 < x^2 +4x-5
cancel out some termsthen it become -21<-5 which is true
hello! please help! will give brainliest to correct answer! will report if you troll... thank you:)
y = -3 sin x – 2.
what is the sinusoidal axis
Answer:
The sinusoidal axis is the neutral horizontal line that lies between the crests and the troughs (or peaks and valleys if you prefer). ... Instead, it would still be the horizontal line directly between the crests and troughs which is also the average of the maximum and minimum values
8/9 divided by 4 equals what?
Answer:
2/9 = 0.2222222
but it is 2/9
Step-by-step explanation:
Simplify the expression:
10s+–2s
Answer:
8s
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
TermsStep-by-step explanation:
Step 1: Define
10s + -2s
Step 2: Simplify
Rewrite: 10s - 2sCombine like terms: 8sAnswer:
[tex]\huge\boxed{8s}[/tex]
Step-by-step explanation:
Expression can be broken down into a couple of parts.
A term (like 10s, or -2s)The variable (what the unknown value is being represented by, in this case, s)The coefficient (the number next to the variable, showing what to multiply the variable by - in this case, 10 and -2)When we have multiple terms with the same variable, we can perform operations on them assuming they have the same variable - for example, 5x + 6x = 11x, as 5+6=11.
We can apply the same logic here, however, note that adding a negative is the same as subtracting a positive. For example, 5 + -2 is the same as 5-2.
[tex]10 - 2 = 8[/tex]
Therefore, our final expression is [tex]8s[/tex].
Hope this helped!
Select the Correct Answer.
Consider the functions f and g
f(x) = |2x+9|
(graph attached)
What is the value of g(f(-5))?
A. 5
B. -5
C. 0
D. -1
Answer:
I Guessed postive 5 and got it right
Step-by-step explanation:
So the answer is 5
NOT -5
Need help with this math question pls help me will mark brainiest btw
Answer:
c
Step-by-step explanation:
Plz help I need to get my grade up in a week!!
Answer:
For 13 the slope is 0
Step-by-step explanation:
I can't see 12 nor 11, but 13 is a zero slope because horizonal lines have 0 slope.
James was working on his school homework for 2 hours. He spent 1/3 of this time working on math, and 1/4 of the rest of the time doing reading. How many minutes did James do math?
If 6/x=5/y, then 6/5=?/?
Answer:
[tex] \frac{6}{x} = \frac{5}{y} \\ 6y = 5x \\ Answer \frac{6}{5} = \frac{x}{y} [/tex]
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.
Answer:
B is the correct answer
Step-by-step explanation:
becasue if you solve this you get (0,0) (1,20) and (2,40) so b is the correct answer
A cell phone company recently noticed a 30% sales decrease in the month of July compared to June. Let n represent June's sales. If y represents July's sales, which equation can be used to determine the sales in July?
A. n=y-0.30y
B. y=n-0.30n
C. y=n+0.30n
D. y=n-0.30
I need the answer fasttt
Answer:7
Step-by-step explanation:
Nancy is buying a new pair of boots. The store is having a sale and all boots are 20% off.
please simplify 5(x-1)
Answer:
5x-5
Step-by-step explanation:
Just use distribuative property
Question 1
Determine if the relation shown is a function or not.
Y
2
8
4.
6
8
4
Answer:
No, it is NOT a function.
Step-by-step explanation:
A functions' inputs are assigned to exactly one output.
We are given the points:
{(8,2) (4,-3) (6,4) (8,1)}
The input of 8 is repeating.
The given relation is not a function.
Hope this helps!
Simplify:(4x2 - 2x) - (-5x2 - 8x).
yall dont gotta simplify this im just bored
Answer:
wsp?
Step-by-step explanation:
9x^2 + 6x
Kim had d dollars and she bought a apples for 12 cents each and b bananas for 18 cents each. How many cents did she have left
===================================================
Explanation:
d dollars = 100d cents
for example, if d = 4, then,
4 dollars = 100*d = 100*4 = 400 cents
So Kim starts off with 100d cents.
She buys 'a' apples, where 'a' is a placeholder for the number of apples. If a = 5, then she bought 5 apples and spends 12*a = 12*5 = 60 cents. In general, she spends 12a cents buying 'a' apples.
Similarly, she spends 18b cents buying b bananas. The letter b is the placeholder for the number of bananas.
Overall, Kim spends 12a+18b cents for buying that amount of apples and bananas. Subtract this expression from 100d to find out how much money she'll have left over.
100d - (12a+18b) = 100d-12a-18b
This left over amount is in cents. If you want to convert to dollars, then you would need to divide by 100.
Use the cosine ratio to find the value of x, to the nearest tenth.
a) 2.7
b) 3.2
c) 4
d) 3.9
Answer:
c) 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA [Right Triangles Only] cosθ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Identify Variables
Angle θ = 34°
Adjacent Leg = x
Hypotenuse = 4.8
Step 2: Solve for x
Substitute [Cosine]: cos34° = x/4.8Isolate x: 4.8cos34° = xRewrite: x = 4.8cos34°Evaluate: x = 3.97938Round: x ≈ 4Point L is the circumcenter of angle ABC. List any segment(s) congruent to each segment.
20 POINTS
Is this a funtion? please help
Answer:
No, it is not
Step-by-step explanation:
Here, we want to check if what we have is a function
For a relation to be a function, the mapping must be one to one or many to one
This mean, for every x there must be one y or for every y, there must can be multiple x
But never is it that there are many y for a single x
Looking at the value 0
on the domain, we can see -2 and 1 as the values
Thus, this is not a function
Please help me with this..!
Answer:
opposite sides are congruent for first under given
AD=AD for reflective property of congruency
next one under given is definition of perpendicular lines
and last box is acd=bdc
Step-by-step explanation:
7 candes cost £45.29,
how much would 25 candles cost?
Answer:
161.75
Step-by-step explanation:
45.28 divided by 7 = 6.47
6.47 per cande
6.47 times 25 = 161.75
can someone help with this
Simplify: 9^-3
Easy question! TOTALLY not a lot of points!
Find the scale factor for the figure below.
Too easy XD I don’t remember how to do that T-T
How am I supposed to do this?
For literal equations you do not necessarily need a numerical answer. You just need to get the variable you are supposed to solve for on one side of the equation by itself. To do this you will follow the same steps you do when you normally solve for x (or any other variable)
#9-Step by step
Q=25[tex]\pi[/tex]h
divide 25[tex]\pi[/tex] on both sides of the equation
Q/25[tex]\pi[/tex]=h
h=Q/25[tex]\pi[/tex]
Since his can't be simplified any further this is your answer
#11. y=7m+6
First subtract 6 over to the other side
y-6=7m
then divide the 7 over
(y-6)/7=m
m=(y-6)/7
#13 A=(Z+7)3
Divide the three over to the other side of the equation
A/3=Z+7
Now the 7 is free to be subtracted from both sides
(A/3)-7=Z
#17. (2x/5)-9=6
First add 9 to both sides
2x/5=6+9
2x/5=15
Multiply both sides of the equation by 5
2x=5(15)
2x=75
Divide by 2
x=75/2
x=37.5
Tyler practiced the clarinet for 64% as much time as Han practiced the piano. How long did he practice?
Answer:
Tyler practiced piano = 48 minutes
Step-by-step explanation:
Missing;
Hen practiced piano = 75 minutes
Given:
Tyler practiced piano = 64 % of Hen
Find:
How long Tyler practiced
Computation:
Tyler practiced piano = 64 % of Hen
Tyler practiced piano = 64 % x 75
Tyler practiced piano = 48 minutes
HElp
The diagonal length of a rectangle is 19 inches, and the length of the rectangle is 7 inches. Which measurement is closest to the width of this rectangle in inches? 12 in. 17.7 in. 20.2 in. 26 in.
Answer:
17.7
Step-by-step explanation:
PLEASE HELP THANKS!!!
Answer:
You first need to know what number 6 4/5 is, which is 6.8. To figure it out, you multiply 6 by 5 then add 4 and put the number you get on top of the fraction so it would be 34/5 = 6.8
6.9 is the answer
6.9 is bigger than 6.8 and smaller than 7
Zachary has been flipping a coin, and he noticed that he had the coin come up tails five times in a row. "The next time has to be heads!" He exclaims. Is he right? Is it theoretically more likely to come up heads? Please explain
Will mark BRAINLIST if right.
Answer:
No. Each toss is independent so it is NOT more likely to come up heads the next time.
Step-by-step explanation:
That is the answer. Hope it helps
solve for x round your answer to the nearest tenth
Answer:
13.7
Step-by-step explanation:
Pythagorean theorem converse
Answer:
The value of x is 13.7.
Step-by-step explanation:
☆We are going to use the Pythagorean theorem to solve this.
☆Pythagorean Theorem:
[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
☆Remmeber: a = leg, b = leg, c = hypotenuse or the diagonal.
☆Let's plug in according to the pythagorean theorem and solve!
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {x}^{2} + {9.2}^{2} = {16.5}^{2} \\ {x}^{2} + 84.64 = 272.25 \\ \frac{ \: \: \: \: \: \: \: \: - 84.64 = - 84.64}{ {x}^{2} = \sqrt{187.61} } \\ x = 13.7[/tex]
