[tex] {3}^{ - 2} \times {3}^{ - 5} = {3}^{ - 7} [/tex]
Answer:
A) 3^-7
Step-by-step explanation:
Factor and solve 2x^2 – 3x – 20 = 0
Answer:
(2x + 5) (x-4)=0
Step-by-step explanation:
PLEASE HELP
Find f(2) if f(x) = (x + 1)2.
a 9
b 6
c 5
Answer:
b
Step-by-step explanation:
x = 2 in this situation, so plug in 2 for x.
f(2) = (x + 1)2
f(2) = (2 + 1)2
f(2) = (3)2
f(2) = 6
f(2) = 6. That means b is the answer.
andrew sold $50 less than sarah did and evan sold $25 more than Sarah. these quantities can be communicated symbolically. if x= the amount that sarah sold, which of these represents the amount sold by the other two people?
A. andrew=50-x, Evan= x+25
B. Andrew=x-50, Evan=x+25
C. andrew=x-50, evan=25x
D. andrew=50-x, evan=25x
In the diagram,m<1= (4x+10) and m<2=(c+20) the value of x is
Answer:
30
bcz
1+2=150(st. line)
4x+10+x+20=180
5x=150
x=30
plz make me brainliest
Typing 731 words in 17 minutes (words per minute)
Can you help me
On Monday you sent x number of text messages. On Tuesday you sent twice as many. On Wednesday you sent 12 more texts than you sent on Tuesday. On Thursday you sent half as many as you sent on Wednesday. Which expression represents the number of text messages you sent on Tuesday? Which expression represents the number of text messages you sent on Wednesday? Which expression represents the number of text messages you sent on Thursday?
Answer: Expression represents the number of text messages you sent on Tuesday = 2x
Expression represents the number of text messages you sent on Wednesday = 12+2x
Expression represents the number of text messages you sent on Thursday = x+6
Step-by-step explanation:
Given:
Number of text messages sent on Monday = x
On Tuesday, Number of text messages sent = 2 (Number of messages sent on Monday)
= 2 x
On Wednesday, Number of text messages sent = 12+ (Number of messages sent on Tuesday)
= 12 +2x
On Thursday, Number of text messages sent = [tex]\dfrac12(2x+12)[/tex]
= x+6
Expression represents the number of text messages you sent on Tuesday = 2x
Expression represents the number of text messages you sent on Wednesday = 12+2x
Expression represents the number of text messages you sent on Thursday = x+6
On Monday you sent x number of text messages. On Tuesday you sent twice as many. On Wednesday you sent 12 more texts than you sent on Tuesday. On Thursday you sent half as many as you sent on Wednesday.
Which expression represents the number of text messages you sent on Tuesday?
✔ 2x
Which expression represents the number of text messages you sent on Wednesday?
✔ 2x + 12
Which expression represents the number of text messages you sent on Thursday?
✔ (2x+12)/2
need answers pleases
Answer:
C
Step-by-step explanation:
It is basically acting as a mirror. That is what it means by reflection.
Answer:
I think it's D
Step-by-step explanation:
Have to find x,y and z
Answer:
x=2, y=5
Step-by-step explanation:
the triangle that x is in is a right triangle (don't remember the theorem sorry)
use pythagorean theorem (a^2 + b^2 = c^2)
x is the hypotenuse(c)
1 squared plus /3 squared =c squared
1+3= c squared
4= c squared
c=2
x=2
find y using pythagorean theorem as well
/12 squared plus 2 squared = y squared
y is the hypotenuse
12+4=y squared
16= y squared
4=y
add one to account for that extra little piece
y=5
... I don't see z
Answer:
y= if it is the hypoteneuse for the whole triangle it √16 or 4, if it is the side of the smaller triangle it is 3
x=√4 which is 2
z= I don't think ther's a z
To find the quo 2/5 divided 1/4.
Answer:
A. Multiply 2/5 by 4
Step-by-step explanation:
Because when you dividend fraction
1,write the reciprocal of the second fraction number and multiply with the first fraction number
2,multiply the numerators and denominators of both fraction..
the reciprocal of 1/4 is 4/1 =4so the answer is 2/4 by4
Answer:
Step-by-step explanation:
Ghhhhhjhhbhhhhu
Find the slope of the line y = 9x - 1/2
Answer:
Step-by-step explanation:
m = 9
Step-by-step explanation:
y = mx + b is our formula
m stands for slope
9 is in place of m in the equation therefore 9 is the slope
Consider Brainliest
Which exponential function is represented by the values in the table?
Answer:
[tex]\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x[/tex]
Step-by-step explanation:
Exponential Function
The exponential function can be written with the general equation:
[tex]f(x)=A\cdot r^x[/tex]
Where A is the value when x=0 and r>0 is the ratio. If r is greater than 1, the function is increasing, if r is less than 1, the function is decreasing.
The table shows the relation between values of x and values of the function y. Note that as x increases (one by one), y decreases with a ratio of 1/2. Only the last two choices have ratios of r=1/2. We only have to test which one of them has the correct value of y=4 when x=0.
Substituting in the third function:
[tex]\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x[/tex]
[tex]\displaystyle f(0)=4\cdot\left(\frac{1}{2}\right)^0[/tex]
[tex]f(0) = 4[/tex]
This gives the correct value of f(0)=4.
Substituting in the fourth function:
[tex]\displaystyle f(x)=\frac{1}{2}\cdot\left(\frac{1}{2}\right)^x[/tex]
[tex]\displaystyle f(0)=\frac{1}{2}\cdot\left(\frac{1}{2}\right)^0[/tex]
[tex]f(0) = \frac{1}{2}[/tex]
This choice is wrong
Correct choice:
[tex]\boxed{\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x}[/tex]
8. 6r + 5 = 4 6 - 7y -20
Answer: r=-7/6y+7/2
Step-by-step explanation:
Step 1: Add -5 to both sides.
6r+5+−5=−7y+26+−5
6r=−7y+21
Step 2: Divide both sides by 6.
6r/6=-7y+21/6
PLEASE ASAP! Answer the questions to compare the mean number of deliveries for the three companies.
1. How many drivers did company C use in its sample?
2. What is the MAD for company C's data? Show your work.
3. Which company had the greatest mean number of deliveries?
4. Compare the means for companies A and B. By how many times the MAD do their
means differ? Show your work.
Answer:
1 is 20 or 10 2 is 2 3 is b 4 is 2
Step-by-step explanation:
Answer:
1 is 20 or 10 2 is 2 3 is b 4 is 2
Step-by-step explanation:
Caitlin wants to draw n line segments, without lifting her pencil off the paper and without retracing her path, so that each segment crosses exactly one other segment (not counting intersections at vertices) and she ends up back where she started.A. Show how she can do this for n = 6. B. For which n can it be done, and for which n is it impossible?
Find the EXACT values for a, b, and c.
(Picture attached)
Answer:
b=40
a=42.7
c=53.3
Step-by-step explanation:
b^2=32^2+24^2
b^2=1024+576
b^2=1600
b=40
a/32=32/24 (by the Geometric mean theorem)
a=42.7
c^2=32^2+a^2
c^2=1024+1820.7
c^2=2844.7
c=53.3
PLEASE HELP ME!!!!
The two figures are similar. Write the similarity statement. Justify your answer
Which of the following shows 2x3y − 3x2 + 7y2x − 12y written in standard form?
a 2x3y + 7y2x − 3x2 − 12y
b −12y + 7y2x − 3x2 + 2x3y
c 7y2x − 12y + 2x3y − 3x2
d −12y − 3x2 + 7y2x + 2x3y
Answer:
a) 2x³y + 7y²x − 3x² − 12y is the right answer.Step-by-step explanation:
Which of the following shows 2x³y − 3x² + 7y²x − 12y written in standard form?
a) 2x³y + 7y²x − 3x² − 12y✓b) −12y + 7y²x − 3x² + 2x³y
c) 7y²x − 12y + 2x³y − 3x²
d) −12y − 3x² + 7y²x + 2x³y
Answer:
2x^3 y + 7y^2 x − 3x^2 − 12y
Step-by-step explanation:
(Just took test)
In order for it to be in standard form in needs to be in the proper order. So just rearrange the numbers to the correct spots to get your answer.
Y’all, lord have mercy
How am I in highschool, yet I don’t know how to solve this without a calculator
Answer:
4
Step-by-step explanation:
Answer:
Answer of this qn is. 4 hope it help s
Plzzzzzxxzxz hellppppp meeeeeee
Answer:
[tex]\frac{1}{64}[/tex]
Step-by-step explanation:
(1/8)^2 is actually just (1/8)*(1/8)
We multiple the numerators, 1*1, to get 1,
And the denominators, 8*8, to get 64
So the anwser is (1/64)
Ok so I just got a 210 question test right and I have 1 day to complete it I'm on question 135 and it says 22,000 - 98,000 +23,967 X 456,889=
I don't know the answer plz help me, guys.
Answer:
10950182663
Step-by-step explanation:
Answer:
10950182663
Step-by-step explanation:
You're welcome :)
7x + 2y = 12
-3x -2y = 4
Answer:
(4, -8) or x=4 y=-8
Step-by-step explanation:
Answer: x=4 and y=−8
Step-by-step explanation: 7x+2y=12, −3x−2y=4
7x+2y+−2y=12+−2y
7x /7 = −2y+12 /7
x= −2 /7 y+ 12 /7
−3( −2 /7 y+ 12 /7 )−2y=4
−8 /7 y+ −36 /7 + 36 /7 =4+ 36 /7
−8 /7 y / /−8/7 = 64 /7 /−8 /7
y=−8
x= −2 /7 y+ 12 /7
x= −2 /7 (−8)+ 12 /7
x=4
x=4 and y=−8
54÷6,297 plz help fast I will give the brainliest answer
Answer:
The answer is 18/2099 as a fraction.
Hoped this helped!
Can someone help me with this please
a shipwreck lies 125 below sea level
Answer:
-125
Step-by-step explanation:
Plsssssss help meeeeeeeeeeeee I need help
Answer:
honestly I think its QT
Step-by-step explanation:
hope it helps
What is a inelastic collision
IF YOU WANT BRAINLIEST DESCRIBE IT IN YOUR OWN WORD PLS
Answer:
Kindly check explanation
Step-by-step explanation:
Think of inelastic Collison as a phenomenon whereby the colluding bodies do not rebound. That is the direction of motion of the two bodies after collision is in a single direction, moving with a single final velocity as opposed to bodies moving in different directions with differing final velocities after collision during an elastic collision. Therefore, the final kinetic energy during an inelastic Collison isn't conserved.
Mathematically,
Inelastic Collison can be written has :
m1u1 + m2u2 = v(m1 + m2)
Whereby ;
m1, m2 are masses of the first and second colliding objects
u1 and u2 are their initial velocities
Note that, we only have a single final velocity, v, which shows that the colliding objects move in the same direction after collision.
I need help pls I’m taking a test and I don’t know what to do.
Graph x < 5 on a number line
----------------5
that's how it should look
Step-by-step explanation:
5 is more than x so x goes behind the 5
Answer/Step-by-step explanation:
X is any variable less than 5
<------------------------------------------------------o
I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Lupita bought 7 pounds of pretzels at a local wholesaler for $16.80. Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75. Charles thinks he got the better deal because $12.75 is less than $16.80. Is Charles’s reasoning correct? Explain why or why not.
Answer:
Charles's reasoning is wrong.
Step-by-step explanation:
Lupita has 7 pounds for 16.8 and Charles has 5 pounds for 16.8.
Let's set up ratios.
So Lupita got the best deal, not Charles. Poor him.
solve for x using the correct order operations
12- (3 times 2)^2 + 4 times 3 = x
A x = -60
B x = -12
C x= 48
D x = 12
please help i will give brainliest :))
Answer:
B: x = -12
Step-by-step explanation:
12 - (3 × 2)^2 + 4 × 3
Use PEMDAS, meaning solve what's in the parentheses first (P stands for parentheses)
12 - (6)^2 + 4 × 3
We get 6 because 3 × 2 = 6
Next step is solve any exponents (E for exponents)
12 - 36 + 4 × 3
We get 36 because 6 × 6 = 36 (the exponent was 2 meaning multiply the same number, 6, twice: 6 × 6)
Now we move on to multiplication and division (M for multiplication and D for division)
These are interchangable in that either can go first depending on its location in the equation
However, since there is no division in this problem we automatically skip to multiplication
12 - 36 + 12
We answered 12 because 4 × 3 = 12
Our last steps in PEMDAS are addition and subtraction (A for addition and S for subtraction)
These are also interchangable, but both are apparent in this problem
Now it depends on location
Whichever sign (addition or subtraction) is first in accordance from left to right is where we start first)
Subtraction is first
-24 + 12
Now we add -24 + 12
-12