(3x-4)(x+7)-1/4x^2 as a trinomial in standard form. If you can pls provided step by step explanation
The trinomial in standard form is 11/4x² + 17x - 28
How to rewrite the expression?The expression is given as:
(3x-4)(x+7)-1/4x^2
Rewrite properly as:
(3x - 4)(x + 7) - 1/4x²
Expand the expression
3x² - 4x + 21x - 28 - 1/4x²
Collect like terms
- 1/4x² + 3x² - 4x + 21x - 28
Evaluate the like terms
11/4x² + 17x - 28
Hence, the trinomial in standard form is 11/4x² + 17x - 28
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Is y=1/2x-1 proportional
Answer: No
Step-by-step explanation: Since y=2x+1 does not pass through the origin (i.e. there exists the constant term of 1 ), the variables y and x are not directly proportional - though, they do have a linear relationship.
Plzzzzzz help me with all 3 answers
Answer:
1) is arithmetic (because your adding 10)
2) is not arithmetic
3) is arithmetic ( because your adding 10)
Step-by-step explanation:
Select all the statements about the figure that MUST be true. Р Q 6n + 3 S 4n + 11 R PR=15 QS=21 QP=13 n=7 SR=27 QR=54
Answer:
Options (5) and (6)
Step-by-step explanation:
From the picture attached,
In right triangle ΔPSQ and ΔPSR,
PS ≅ PS [By reflexive property]
PQ ≅ PR [Given]
ΔPSQ ≅ ΔPSR [By HL property of congruence]
Therefore, QS ≅ SR [CPCTC]
(6n + 3) = (4n + 11)
6n - 4n = 11 - 3
2n = 8
n = 4
QS = (6n + 3)
= 6×4 + 3
= 27
SR = (4n + 11)
= 4×4 + 11
= 16 + 11
= 27
QR = QS + SR
= 27 + 27
= 54
Therefore, Options (5) and (6) are the correct options.
Which of the following numbers is not a perfect square?
a. 49
b. 121
c. 125
d. 144
Answer:
C. 125Step-by-step explanation:
49 = 7×7 ← a perfect square
121 = 11×11 ← a perfect square
144 = 12×12 ← a perfect square
but:
125 = 5×5×5 = 5√5×5√5 and 5√5 is not integer so 125 is not a perfect square
Answer:
C. 125
Step-by-step explanation:
source: trust me bro
If it takes 2/5 cup of red paint to mix with 5/8 cup blue paint to make purple paint. How much red paint is needed to mix with 1 cup of blue paint.
Answer: she should use 5/8 cups i think
Step-by-step explanation:
Write as an exponent with the base of b:
[tex]bb^{m}[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]b. {b}^{m} = {b}^{1 + m} [/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Plz help I’m desperate
Answer:
Step-by-step explanation:
f(-2)=5
Since Pemdas is used, taking care of that x is squared before multiplying -3 to make sure you don't mess up the signs.
Enjoy your day love <3
help!!! I'm not really good at graphs so I also need an explanation please!
Answer:
Hi, I think it's DEGF
Step-by-step explanation:
for y=x－2,
just move y=x down 2 units.
for x=－2,
it's the easiest one, just see if there is a vertical crossing －2 on the x-axis.
for－2x+4,
you can see it as move y=－2x up 4 units, and for y=－2x, you can find it out by sub (1,-2) and (0,0) onto the graph.
for x²-4,
see it as y=x² moved down 4 units. for y=x², it's simply a parabola which is symmetrical along y-axis and crossing (0,0). And remember that since the coefficient of x² is positive, the graph is open upward.
Hope this will help u!!
At the time that a 55 foot tall tree casts a shadow that is 32 feet long, a nearby woman is 5.5 feet tall. Which measure is the closest to the length of the shadow she will cast?
Answer:
3.2ft long shadow
Step-by-step explanation:
In this problem we are given a ratio between the tree/shadow and woman/shadow therefore we are given 3 values and 1 unknown then we can use the Rule of Three to calculate the length of the shadow which we will refer to as x. The Rule of Three simply multiplies the diagonal values and divides by the third value in order to get the missing unknown like so...
55ft tall <======> 32ft long shadow
5.5ft tall <======> x ft long shadow
(5.5 * 32) / 55 = 3.2ft long shadow
Finally, we can see that the woman's shadow would be a 3.2ft long shadow
Brainiest!!!!!!! please help
The answer to this question is B, No solution
What linear equation has a slope of -2 and y-intercept of 3?
Answer:
y=-2x+3
Step-by-step explanation:
equation is y=mx+c
9/10 / -6/5 WHAT IS THE ANSWER?!?!?!?!?
Answer:
the answer is [tex]-\frac{3}{4}[/tex]
Step-by-step explanation:
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
The temperature at 2 am was -12 degrees. At noon the temperature had risen 16 degrees. At 4 pm the temp dropped 8 degrees. What was the temperature at 4 pm
Answer: - 4
because The temperature at 2 am was -12 degrees and At noon the temperature had risen 16 degrees
=> the temperature at noon was -12 + 16 = 4 (degrees)
At 4 pm the temp dropped 8 degrees => the temperature at 4 pm was:
4 - 8 = -4 (degrees)
Step-by-step explanation:
Find the value of g when 5g + 6 equals 2g + 15.
Answer:
g=3
Step-by-step explanation:
5g+6=2g+15
3g=9
g=3
∠A is complementary to ∠B. The measure of ∠A is (8x+12)∘. The measure of ∠B is half the measure of ∠A.
Write an equation that can be used to determine the value of x. Then solve for x.
The equation that can be used to solve for x is 8x + 12 + 4x + 6 = 90.
The value of x is 6.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
∠A and ∠B are complementary.
This means,
∠A + ∠B = 90
Now,
∠A = 8x + 12
∠B = (8x + 12)/2 = 4x + 6
Now,
8x + 12 + 4x + 6 = 90
12x + 18 = 90
12x = 90 - 18
12x = 72
x = 72/12
x = 6
Thus,
The value of x is 6.
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I need help :( this is like super hard I dont know what the anser is
Answer:
c
Step-by-step explanation:
16 divided by 4 equals 4
Answer:
B. 1/4
Step-by-step explanation:
4 divided by 16 is 0.25 which is 1/4
PLEASE HELP IM TIMED
Jessica and Jonathan need to figure out how much to charge for their lemonade. First, they need to know how much they spent on ingredients! As seen in the table, they bought 6 containers of lemon juice, 2 packages of sugar, and 2 bottles of water.
What is the total amount of money they spent?
1) $12.90
2) $16.34
3) $18.75
4) $20.16
Answer:
20.16
Step-by-step explanation:
add
Answer:
20.16
Step-by-step explanation:
Got it on Freckle
Find the slope of the line passing through the points (-5, 7) and (-7, 1).
Answer:
[tex]m=3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-5, 7)
Point (-7, 1)
Step 2: Find slope m
Substitute: [tex]m=\frac{1-7}{-7+5}[/tex]Subtract/Add: [tex]m=\frac{-6}{-2}[/tex]Divide: [tex]m=3[/tex]And we have our final answer!
HELP ENDS IN 20 MINS!!!
Find the values of x, y, and z. The diagram is not to scale.
46°
1130
58°
vo
A. X = 63, y = 104, z = 76
B. X = 76, y = 63, z = 104
C. X = 63, y = 76, z = 104
D. X = 76, y = 104, z = 63
Answer:
B. X = 76, y = 63, z = 104
Step-by-step explanation:
46+58+x=180
104+x=180
x=180-104
x=76
What is the value of x? Round to the nearest tenth(1 decimal place)
Answer:jkkjjkj098765
Step-by-step explanation:
iuytrfdghyui8
What is the difference of 85.23 and 2.675?
Answer: 82.555
Step-by-step explanation: I used a calculator
Here are recipes for two different banana cakes. Information for the first recipe is shown in the table. 1st Recipe: y = 1.5x 2nd Recipe: y = 7/4x If you used 4 cups of sugar, how much flour does each recipe need?
Answer:
d. First: 6 cups, Second: 7 cupsStep-by-step explanation:
Answer choices:If you used 4 cups of sugar, how much flour does each recipe need? a. First: 2 cups, Second: 8 cups b. First: 7 cups, second: 6 cups c. First: 4 cups, second: 2 cups d. First: 6 cups, Second: 7 cupsSolutionUsing the formulas to find the amount of flour needed:
1. y = 1.5x = 1.5*4 = 6 cups2. y = 7/4x = 7/4*4 = 7 cupsCorrect choice is d.
ƒ2 + 8 if ƒ = 7? Please help, LOL.
Answer:
24
Step-by-step explanation:
If f is equal to 7, you'd multiply 7 by 2 (following pemdas/gemdas). When you multiply those two numbers, you get 14. If you add 8 to 14 you get 24.
A bank charges a monthly fee if the average monthly balance of your account is less than $4000. The table shows the balance of your account the first four months it is open. Find the average monthly balance of your account after the fourth month. Do you have to pay the fee after the fourth month?
Please help me.
Answer:
where is the table??? pls send it
how do I get on the leaderboard
I have 1900 something points way more than these people. Is it about how many questions you ask?
Answer:
No its about how many you get PER DAY
Step-by-step explanation:
SOMEONE PLEASE HELP ME WITH THIS!!!!
Answer:
D.
Step-by-step explanation:
115x + 170 = 630
Subtract 170 from each side of the equals,
115x = 460
Divide 460 by 115,
4
Thus, D is your correct answer.
Answered by:
matthewarvin06
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In the isosceles trapezoid LMNO, find the value of x.
5
9
15
45
Answer:
15 would be the correct answrr
20 POINTS An electrician charges a set fee for every house call and then charges an hourly rate depending on how long the job takes. The total cost of the electrician's services can be determined using the equation C=65+60t, where t is the number of hours the electrician spends at the house working. What is the slope of the equation and what is its interpretation in the context of the problem?
Answer:
[tex]the \: slope \: is \to \boxed{60}[/tex]
Step-by-step explanation:
[tex]if \to C=65+60t \\ C=60t + 65 \\ but \: the \: \boxed{ c - intercept} \: is \: in \: the \: form \to \\ c = mt + b \\ hence \to \\ 60t = mt \\ m = \frac{60t}{t} \\ m = 60 \\ the \: slope \: is \to \boxed{60}[/tex]
We want to analyze the given linear equation, we will find that the slope is 60, and it means that he charges 60 per hour.
Linear equations:
A general linear equation is written as:
y = a*x +b
Where a is the slope and b is the y-intercept.
In this case, we have the equation:
c(t) = 60*t + 65
Is easy to identify that the slope is equal to 60.
Given that we know that he charges per hour, and that t represents the number of hours that the electrician worked, we can assume that the slope represents how much the electrician charges per hour.
If you want to learn more about linear equations, you can read:
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Write each number below in Scientific Notation.
1. 92, 000 = 9.2 x 104
2. 109,000 = 1.09 x 105
3. 4,673 = 4.673 x 103
4. 0.00087 = 8.7 x 10-4
5. 0.0235 = 2.35 x 10-2
Answer:
92,00=9.2*10^4
109,000=1.09*10^5
4,673=4.673*10^3
0.00087=8.7*10^-4
0.0235=2.35*10^-2
Step-by-step explanation: