Answer:
1) They forgot to multiply 2 times (2x+5)
2) x-2 is not equal to -(x+2).
3) The correct expression is [tex]x-1-1+2x=1-3x[/tex]
4) The correct way is [tex]4(2x+3)=3(1-3x)[/tex]
Step-by-step explanation:
1) In this case they forgot to multiply 2 times (2x+5). Let's recall we need to multiply (2x+5) to all terms of the equation.
2) Here, x-2 is not equal to -(x+2). If we see -(x+2) = -x-2 using the distributive property.
3) After multiplying by (3x-2) we will have:
[tex]x-1-(1-2x)=1-3x[/tex]
Apply the distributive property again, we will have:
[tex]x-1-1+2x=1-3x[/tex]
So the correct term is 2x not -2x.
4) When we multiply by (1-3x)(2x+3) on each side of the equation, we will have something like this:
[tex]\frac{4(1-3x)(2x+3)}{(1-3x)}=\frac{3(1-3x)(2x+3)}{(2x+3)}[/tex]
If we see we can simplify the same terms on each side of the equation.
[tex]4(2x+3)=3(1-3x)[/tex]
This is the correct way to do this.
I hope it helps you!
Plsss help me!
What are the domain and range of this graph?
please answer and show work
9514 1404 393
Answer:
y = 3/4x -7/4 or y = 0.75x -1.75
Step-by-step explanation:
The two point form of the equation of a line is useful when you are given 2 points and asked for the equation.
y = (y2 -y1)/(x2 -x1)·(x -x1) +y1
y = (35 -14)/(49 -21)·(x -21) +14 . . . . . . fill in given points
y = 21/28(x -21) +14 . . . . . . . . . . . . . . . simplify a bit
y = 3/4(x -21) +14 . . . . . . . . . . . reduce the fraction
y = 3/4x -15 3/4 +14 . . . . . . . .eliminate parentheses
y = 3/4x -7/4 or y = 0.75x -1.75
Hannah decided to make finger gelatin for a huge children’s party. She had to make 8 packs of gelatin. Each pack needed 2 cups of water. How many quarts of water will she need? a 8 quarts
b 3 quarts
c 4 quarts
d 6 quarts
Answer:
C.) 4 quarts
Step-by-step explanation:
(Keep in mind that 4 cups=1 quart
1 pack=2 cups2 packs=4 cups/1 quart3 packs=6 cups4 packs=8 cups/2 quarts5 packs=10 cups6 packs=12 cups/3 quarts7 packs=14 cups8 packs=16 cups/4 quarts16 cups=4 quartsHope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Brainliest?!?!
Answer:
4 quarts
Step-by-step explanation:
8x2c= 16oz
16oz÷2c= 8pt
8pt÷2pt=4qt
4QT
anyone got ph recommendations lol
Answer: hmmmmmmmmmmmmmmmm no sorry
Step-by-step explanation: thanks for the points tho G
12 square + 9 square= c square
Answer:
21 square I think bc 9 + 12 = 21
Step-by-step explanation:
Answer:225 squ.
Yw*-*
Determine if segment XY is tangent to circle Z.
Answer:
XY is not tangent to circle Z
Step-by-step explanation:
if ∠WXY = 90°, then XY is tangent to circle Z
test using Pythagorean theorem:
WX = 2(ZX) = 17
is 20² = 5² + 17²?
400 ≠ 25 + 289, so not tangent
Please help, thank you
Answer:
b
Step-by-step explanation:
7/3=2 1/3 >2
Which of these worms has bristles, called setae, on its soft body to help it move?
nematodes
earthworms
roundworms
flatworms
Answer:
earthworm
Step-by-step explanation:
The worm which hasbristles, called setae, on its soft body to help it move is roundworm, the correct option is roundworm.
what are worms?Worms are described as many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes. Roundworms constitutes of the phylum Nematoda, with plant-parasitic nematodes also known as eelworms.
Given;
The worms has bristles, called setae
Now,
Roundworm infections usually occur when soil, sand, or plants that have been contaminated with infected animal feces are accidentally put in the mouth and ingested by individuals;
Therefore, the worm will be roundworm.
Learn more about roundworms at:
brainly.com/question/17039398
#SPJ6
A store buys sweaters for eight dollars and sells them for $26 how many sweaters does the store need to sell to make a profit of $990? HELP!!!!
Answer:
h
Step-by-step explanation:
here scrooll down for answer
no <3
just kidding multiply those and tada u'll get your answer
Answer:
38-39 just divide it c'mon seriously
How many centimeters of cubic amounts to the volume of the cube with a edge of 0.1 m
Answer:
[tex]V=1000\ cm^3[/tex]
Step-by-step explanation:
The edge of the cube, a = 0.1 m
We need to find the volume of the cube. The formula for the volume of the cube is given by :
[tex]V=a^3[/tex]
Put the respected values,
[tex]V=(0.1)^3\\\\V=0.001\ m^3\\\\or\\\\V=1000\ cm^3[/tex]
So, the volume of the cube is equal to [tex]1000\ cm^3[/tex].
Summer deposited $5,800 into an account. She made no additional withdrawals or deposits. Summer earned 1.35% annual simple interest on the money in the account.
What was the balance in her account at the end of 3.5 years?
Enter the amount in the account in the box.
$
Answer:
5800 x 0.0135 = 78.3
78.3 x 3 =234.9
78.3/2 = 39.15
234.9 + 39.15 = 274.05
Your answer is 274.05
Step-by-step explanation:
Hope this helps!
The balance in her account at the end of 3.5 years is $6074.05.
What is the balance in her account at the end of 3.5 years?The balance in her account is the sum of the interest earned and the amount of money deposited.
Simple interest = amount deposited x time x interest rate
$5800 x 0.0135 x 3.5 = $274.05
Balance = $274.05 + $5800 = $6074.05
To learn more about interest, please check: https://brainly.com/question/26164549
Help Y+7=1/2(12x+8) I need help guys
Answer:
A. y=6x-3
B. The slope is 6
C. y-intercept is -3
E. y-6x= -3
F. (1/2, 0)
Step-by-step explanation:
I can't do the graph because I don't know how to input a picture but I hope this helped!
This is for the second half of the page:
2. the slope of y=3 is 0 so m=0
to graph just draw a line horizontally at 3
3. the equation of the line is x=2
the slope of this line undefined, so literally just write undefined
4. y= -6/7x-1
Which equation represents the following quadratic equation written in vertex form?
x2 + 4x - 2= 0
the Answer is x= -- 2 + V 6
Las edades de cuatro hermanos forman una progresión aritmética, y su suma es 32 años. El mayor tiene 6 años más que el menor. Halla las edades de los cuatro hermanos.
Answer:
The ages of the four siblings are: 5, 7, 9 and 11 years old.
Step-by-step explanation:
The computation of the age of the four siblings is shown below:
Given that
n = 4
a1 =? a2 =? a3 =? a4 =?
a4 = a1 + 6 years
S4 = 32
Based on the above information
As we know that
Sn = (a1 + a4) × n ÷ 2
S4 = (a1 + a4) × 4 ÷ 2
32 = (a1 + a1 +6) × 2
16 = 2a1 + 6
2a1 = 10
a1 = 10 ÷ 2
= 5
So, a4 = a1 +6
= 5 +6
= 11
a4 = a1 + (4-1) × d
11 = 5 + 3 × d
d = 6 ÷ 3
= 2
So,
a2 = a1 + d
= 5 + 2
= 7
a3 = a2 + d
= 7 + 2
= 9
Hence, The ages of the four siblings are: 5, 7, 9 and 11 years old.
1/6 ÷ 2 = 12 (true or False)?
5 ÷ 1/4 = 1/20 (true or False)?
1/3 ÷ 8 = 1/24 (true or False)?
1/8 ÷ 5 = 40 (true or False)?
4 ÷ 1/7 = 28 (true or False)?
Answer:
False, False, True, False, True
Step-by-step explanation:
When you divide by a whole number, the answer always come out smaller
When you divide by a fraction, the answer always come out larger
I need help whats 5t = 7 1/2
Answer: t= 3/2
Step-by-step explanation: 5/ 7 1/2 = 3/2
Answer:
t = 7/10 = 0.700
Step-by-step explanation:
STEP
1
:
1
Simplify —
2
Equation at the end of step
1
:
1
5t - (7 • —) = 0
2
STEP
2
:
Rewriting the whole as an Equivalent Fraction
2.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using 2 as the denominator :
5t 5t • 2
5t = —— = ——————
1 2
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
5t • 2 - (7) 10t - 7
———————————— = ———————
2 2
Equation at the end of step
2
:
10t - 7
——————— = 0
2
STEP
3
:
When a fraction equals zero :
3.1 When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
Here's how:
10t-7
————— • 2 = 0 • 2
2
Now, on the left hand side, the 2 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
10t-7 = 0
Solving a Single Variable Equation:
3.2 Solve : 10t-7 = 0
Add 7 to both sides of the equation :
10t = 7
Divide both sides of the equation by 10:
t = 7/10 = 0.700
One solution was found :
t = 7/10 = 0.700
Let x=−118 and y=−114 .
Which expression has a negative value?
Multiple choice question.
A)
x+y
B)
x−y
C)
x·y
D)
xy
Answer:
A
Step-by-step explanation:
negative +negative =negative
brainliest to the answer. please help !
If a ramp has a slope of 1/10 what is the angle of elevation for the ramp
Answer:
What angle should a ramp be?
Maximum slope for hand-propelled wheelchair ramps should be 1" of rise to every 12" of length (4.8 degree angle; 8.3% grade). Maximum slope for power chairs should be 1.5" rise to 12" length (7.1 degree angle; 12.5% grade). Minimum width should be 36" (inside rails) - (48" is ideal)
Step-by-step explanation:
Hope it helps
i need help rn plsssss
Answer:
75 degrees
Step-by-step explanation:
3x+15 = 4x - 5
-3x -3x
15=x-5
+5 +5
x=20
4(20)-5 = 75
Answer:
75
Step-by-step explanation:
1 and 2 are corresponding angles meaning that they are equal to each other or congruent
so we set up an equation
4x-5=3x+15 and since for x
step 1 subtract each side by 3x
4x-3x=x
now we have
x-5=15
step 2 add 5 to each side
5+15=20
x=20
now we just plug in 20 to 4x - 5
4x20=80
80-5=75
therefore your answer is 75
Which function is graphed
Answer -2-
Step-by-step explanation:
Please help!!! Will give brainliest!!
Help me pleaseeee!!!
Answer:
90 degree angle
Step-by-step explanation:
Which phrase matches the algebraic expression?
12(h)(b)
A. One-half plus the product of h and b
B. One-half minus the product of h and b
C. One-half of the product of h and b
D. The quotient of h and b
Answer:
it is option one half of the product of h and b
option c
go pico go go go go pico go (help me answer this )
Answer:
a
Step-by-step explanation:
Use an area model to multiply (3x+7)(4x+5).
Fill in the blanks with the correct numbers.
(blank) x^2+(blank) x+(blank)
Answer: 12x^2 + 43x + 35 (if you go to k12)
Step-by-step explanation: took the quiz :) (also, sorry forgot to actually answer..)
After multiplication, we get [tex]12x^{2} +43x+35[/tex]
Multiplication :We have to multiply,
[tex](3x+7)(4x+5)[/tex]
Now multiplying both term,
[tex]=(3x+7)(4x+5)\\\\=12x^{2} +15x+28x+35\\\\=12x^{2} +43x+35[/tex]
After multiplication, we get [tex]12x^{2} +43x+35[/tex]
Learn more about quadratic equation here:
https://brainly.com/question/1214333
can someone help me plz
If the teacher has 48 blue and red pens in her drawer and the ratio of red to blue pens are 2:1,
how many red pens and how many blue pens does she have?
Answer:
16 red pens and 32 blue pens
Step-by-step explanation:
16 times 2 is 32
Number 14 plsssssssssssssss
Answer: D
Step-by-step explanation: Because Africa wasn't invited to the Berlin conference, they started to struggle economically.
Answer: I believe it's D
Hope this helped love<3
Nina pays $32.67 to mail a package. It costs $0.45 per ounce to mail package. How much does Nina's package weight?