Answer:
112.5
Step-by-step explanation:
plz mark me brainlest if its correct lol
Answer:
112.5
Step-by-step explanation:
(Checked and correct)
Which of these describes the system of linear equations below?
3x-2y=7
6x-4y=14
a) the system has no solutions.
b) the system has infinitely many solutions.
c) the ration of the-coordinate to the y-coordinate of the only solution is 2 : 1.
d) the difference between the x-coordinate and y-coordinate of the only solution is one.
Given:
The system of equations is
[tex]3x-2y=7[/tex]
[tex]6x-4y=14[/tex]
To find:
The correct statement for the given system of equations.
Solution:
On comparing the given equations and general form of linear equation, i.e., [tex]ax+by+c=0[/tex], we get
[tex]a_1=3,b_1=-2,c_1=-7[/tex]
[tex]a_2=6,b_2=-4,c_2=-14[/tex]
Here,
[tex]\dfrac{a_1}{a_2}=\dfrac{3}{6}=\dfrac{1}{2}[/tex]
[tex]\dfrac{b_1}{b_2}=\dfrac{-2}{-4}=\dfrac{1}{2}[/tex]
[tex]\dfrac{c_1}{c_2}=\dfrac{-7}{-14}=\dfrac{1}{2}[/tex]
Since, [tex]\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}[/tex], therefore, the two equations are equivalent and the system has infinitely many solutions.
Hence, the correct option is b.
Which of the following graphs could be the graph of the function f(x)=.03x2(x2-25)
Answer:were are the graphs
Step-by-step explanation:
PLEASE HELP HELP ME HELP ME HELP ME ITS MATH EZ STUFF
Answer:
Bruh your in high school yo know this stuff just make everything a decimal to get your answer. Lol you really forgot this?
Step-by-step explanation:
Answer:
-7/2 ,-2/8, 0.7, 2/3, 3/4
Step-by-step explanation:
pls look at my question to pay it back!!
Evaluate the value of the expression
4(x+2-5x) when x=2
Answer:
-24
Step-by-step explanation:
plz mark brainlyest
A student's work to solve an equation is shown.
9514 1404 393
Answer:
incorrectlyone solutionStep-by-step explanation:
The third line of the solution is incorrect. It should be ...
5x +2 = -5x +2
Then the one solution can be found:
10x = 0 . . . . . . . . . add 5x-2 to both sides
x = 0
triangle ABC is being dilated with center of dialation at the origin. The image of c, point C', has coordinates of (7.2, 3.6). What is the scale factor of the dilation and what are the coordinates of point A'?
Answer:
4
Step-by-step explanation:
Coordinates of the image point A' will be (-3.6, 3.6).
Rules for the transformation:If a point (h, k) is dilated by scale factor 'a' about the origin, coordinates of the image point point C' will be → (ah, ak)If a point C(6, 3) is dilated by a scale factor 'a', coordinates of the image point C' will be → (6a, 3a)From the graph attached, image point of C(6, 3) is C'(7.2, 3.6)
By the rule of transformation → (6a, 3a) = (7.2, 3.6)
6a = 7.2 ⇒ a = 1.2
Coordinates of point A → (-3, 3)
If the point A is dilated by a scale factor 1.2 about the origin,
Coordinates of the image point A' will be → A'(-3×1.2, 3×1.2)
→ A'(-3.6, 3.6)
Find out more information about the transformation here,
https://brainly.com/question/488929?referrer=searchResults
ASAP PLEASE HELP IM TIMED WILL MARK BRAINLIEST
Letr stand for "O > 2" and s for "2<5'. What is the truth value for r ^ s? Why?
A)
True; the truth value of s is true.
B)
False; the truth value of r is false.
C)
False; the truth value of s is false.
D)
The truth value cannot be determined because the statements are a
contradiction.
Answer: im sorry that nobody got to you, im having the same problem right now
Step-by-step explanation:
Answer: FALSE
Step-by-step explanation:
x ∧ y is true only when x and y are both true
So, since r and s are both false, r ∧ s is also false.
Therefore, s ∧ (r ∧ s) is false since r ∧ s is false.
A lotion is made from an oil blend costing $1.50 per ounce and glycerin costing $1.00 per ounce. Four ounces of lotion costs $5.50.
A table titled Lotion, showing Ounces, Cost per Ounce, and Total. The first row shows, Oil Blend, and has 4 minus g, 1.50, and x. The second row shows Glycerin, and has g, 1.00, and blank. The third row shows, Mixture, and has 4, blank, and 5.50.
Answer:
(4 – g) 1.5
Step-by-step explanation:
Trust
Answer:
(4 – g) 1.5
Step-by-step explanation:
PLEASE HELP! I REALLY NEED HELP WITH THIS!! I WILL MARK BRAINLIEST!!!
All of the following expressions are equivalent to 12w + 6, except:
-1(12w - 6)
(3 + 6w)2
6(1 + 2w)
-1(-12w - 6)
Answer:
2nd one
Step-by-step explanation:
Which statement must be true about line TU?
Line TU is parallel to line RS.
Line TU is perpendicular to line RS.
Line TU has no slope.
Line TU has a slope of –5.
Answer:
line TU is parallel to line RS
Step-by-step explanation:
edg2020
Answer: line TU is parallel to line RS
Step-by-step explanation:
Expand: -3(x – y + 5)
Answer:
-3x+3y-15
Step-by-step explanation:
;)
Answer:
-3x+3y-15
Step-by-step explanation:
-3*x= -3x
-3*-y= 3y
-3*5= -15
Convert − 6 7to a decimal. Go out 3 decimal places and round as appropriate.
Answer:
-0.85714285714
Rounded answer:
-0.86
Step-by-step explanation:
Three fifths of the children in a school are boys. 7/8 of the girls in the school are right-handed. What fraction of the children in the school are left-handed girls
Answer:
To find the answer we only need to know,
Total no.of girls and Total no.of right handed girls.
So,
Total no.of right handed girls = 7/8
Total no.of girls = 8/8 (as given in question)
Total no.of left handed girls is,
(Fraction of total no.of girls) - (Fraction of total no.of left handed girls)
= 8/8 - 7/8
= 1/8
∴ 1/8 of the girls in the school are left handed.
Is 0.23 a rational number? Choose the best explanation.
Answer:
yes because it can be written as 23/100
Step-by-step explanation:
I did this before and I have gotten it correct.
Write the equation of the line that is parallel to y = 1/2x - 8 and passes through the point (4, 10).
Answer:
y=1/2x+8
Step-by-step explanation:
The slopes will be the same but the y-intercept will be different. I graphed out which equation will pass through (4,10) and also be parallel to y=1/2x-8.
The ratio of the present age of mother and daughter is 3:1. Six years ago the ratio of their age was 6 : 1. Find their present age.
Answer:
30 and 10
Step-by-step explanation:
Given ratio of age = 3 : 1 = 3x : x ( x is a multiplier )
Six years ago their age ratio was
3x - 6 : x - 6 = 6 : 1 ← express in fractional form
[tex]\frac{3x-6}{x-6}[/tex] = [tex]\frac{6}{1}[/tex] ( cross- multiply )
6(x - 6) =3 x - 6
6x - 36 = 3x - 6 ( subtract 3x from both sides )
3x - 36 = - 6 ( add 36 to both sides )
3x = 30 ( divide both sides by 3 )
x = 10
Thus their present ages are
mother = 3x = 3 × 10 = 30
daughter = x = 10
help please it's almost due :(
Answer:
Okay so what you are dealing with here is scatter plots and I can tell by looking at this graph that it shows a negative correlation because the dots are decreasing or going down as values are increasing...... I know it's negative so I think the answer would be negative strong linear. I hope this helps you and is correct. Have a great day and good luck!
Step-by-step explanation:
Help Please! A runner saved $25 when he purchased a pair of tennis shoes on sale. If the sale price was 35% off the regular price, what was the regular price of the tennis shoes?
F $71.43 G $60.00 H $51.23 J $8.75
Answer:
Option F: $71.43 is the correct answer.
Step-by-step explanation:
By the question we can observe that 35% of regular price is $25 so this information will be used to calculate the original price of the shoes.
Let
P be the price of shoes
and d be the discount
So
[tex]d = \$25\\P=?[/tex]
The discount is 35% of P so
[tex]d = 35\%\ of\ P\\25 = 0.35 * P\\P = \frac{25}{0.35}\\P = 71.42857...[/tex]
Rounding off to the nearest hundredth
The regular price is: $17.43
Hence, option F: $71.43 is the correct answer.
please help due in 5 mins
What is the probability of landing on an even number? (Write your final answer as a percentage.)
P(event)
Answer: 1/2 which equals 50%
Step-by-step explanation:
Answer:
0.5 because there are 4 numbers and 2 of them are even so it would be 1/2
Please answer !!!!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!
Answer:
m∠B = 69°
General Formulas and Concepts:
Order of Operations: BPEMDASEquality PropertiesComplementary Angles add up to 90°Step-by-step explanation:
Step 1: Define
m∠A = (x + 9)°
m∠B = (7x - 15)°
Step 2: Set up equation
m∠A + m∠B = 90°
(x + 9)° + (7x - 15)° = 90°
Step 3: Solve for x
Combine like terms: 8x - 6 = 90Add 6 to both sides: 8x = 96Divide both sides by 8: x = 12Step 4: Find m∠B
Define: m∠B = (7x - 15)°Substitute: m∠B = (7(12) - 15)°Multiply: m∠B = (84 - 15)°Subtract: m∠B = 69°3.3g+4=1.3g+8 helppp pls
Answer: 2
Step-by-step explanation:
3.3 x 2 = 6.6
6.6 + 4 = 10.6
1.3 x 2 = 2.6
2.6 + 8 = 10.6
Dierdre’s work to solve a math problem is shown below.
Problem: How many 1 and one-half-foot pieces can be cut from a 12-foot length of ribbon?
Step 1:
1 and one-half divided by 12 = n
Step 2:
Three-halves divided by 12 = n
Step 3:
Three-halves times StartFraction 1 Over 12 EndFraction = n
Step 4:
StartFraction 3 Over 24 EndFraction = n
Answer:
One-eighth = n
What was Dierdre’s first error?
She switched the divisor and the dividend in step 1 when creating an equation to model the problem.
She used an improper fraction in step 2 that is not equivalent to 1 and one-half.
She replaced the divisor by its reciprocal in step 3 instead of replacing the dividend by its reciprocal.
She reduced the fraction in step 4 incorrectly.
Step-by-step explanation:
step 1
Answer:
Step 1)-She switched the divisor and the dividend in step 1 when creating an equation to model the problem.
Step-by-step explanation:
I got it right on my unit test :>
Xiao bought 4 3/10 gallons of gas that cost $2.50 per gallon.
What is the total cost of the gas?
Enter your answer in the box.
Answer:
maybe the attached image is helpful
Help!!! 100 POINTS
Examine the number line and select all the statements that are true.
The sum of a and 0 is positive.
The product of a and c is negative.
The quotient of b and a is positive.
The sum of a and b is positive.
The quotient of c and 0 is undefined.
b < a
Answer:
the product of a and c is negitive
Step-by-step explanation:
Answer:
The second one is true
The third one is true
The fourth one is false
The fifth one is true
The sixth one is false
are the terms 5x²andy 5y² like terms?
k² = 76
What is the answer?
Answer:
k = 2 √ 19 , − 2 √ 19
Step-by-step explanation:
Take the root of both sides and solve.
Answer:
± 8.7178 or ± the square root of 19
Step-by-step explanation:
Solve : k2-76 = 0
Add 76 to both sides of the equation :
k2 = 76
When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:
k = ± √ 76
Can √ 76 be simplified ?
Yes! The prime factorization of 76 is
2•2•19
To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).
√ 76 = √ 2•2•19 =
± 2 • √ 19
The equation has two real solutions
These solutions are k = 2 • ± √19 = ± 8.7178
If 4
log x k = , express 3
2
log 8x in terms of k.
Answer:
i help to solve the problem
What is 9.6 as a mixed number?
Answer:
9 3/5
Step-by-step explanation:
96/10 = 48/5
(x3 + x2 – 61x + 25) + (x – 7)
Answer:
x³ + x² - 60x + 18
General Formulas and Concepts:
Combining like termsStep-by-step explanation:
Step 1: Define expression
(x³ + x² - 61x + 25) + (x - 7)
Step 2: Simplify
Combine like terms (x): x³ + x² - 60x + 25 - 7Combine like terms (constants): x³ + x² - 60x + 18Robinson Crusoe is an adventure novel about one man's seafaring adventures that change who he is and how perceives the world. Describe a significant event in your life that made you stop and think about your own destiny or approach to life.
