Answer:
C
Step-by-step explanation:
remove () and calculate the product
8x*(x-5)=3(2x-4)
distribute 8x through the ()
8x^2-40x=6x-12
move the expression to the left-hand side and change its sign
8x^2-40x-6x+12=0
collect like terms
8x^2-46x+12=0
determine the number of solutions using the discriminant D=b^2-4 a c
D=(-46)^2-4*8*12
simply the expression
D=1732
Since D>0, the quadratic equations has 2 real solutions
geometry enginuity two column proof-
my picture file quality sucks but hopefuly someone will know what it is.
help my grade is begging you.
Answer:
i can help but you need to explain the question
Step-by-step explanation:
Over the next 15 months you have to read at least 75 books. You have to read x books per month. The inequality "75 is greater than or equal to 15x" represents this situation. Solve the inequality to find the number of books you have to read per month.
Answer:
you have to read at least 5 books per month (on average)
Step-by-step explanation:
The given inequality is incorrect. "At least 75" means "greater than or equal to 75", so the inequality should be ...
15x ≥ 75
x ≥ 5 . . . . . . divide by 15
You have to read at least 5 books per month.
Rewrite 6x-4y=20 in slope-intercept form.
Answer:
[tex]y=\frac{3}{2} x+5[/tex]
Step-by-step explanation:
subtract 6x
-4y = -6x + 20
divide by -4
[tex]y=\frac{3}{2} x+5[/tex]
Answer:
y= 3/2x-5
Step-by-step explanation:
Slope intercept form means to solve for y. So,
6x-4y=20 (Subtract 6x)
-4y=-6x+20 (Divide by -4)
y= 3/2x-5
i don't understand how to solve this 136 - (-128.6) =
Answer:
264.6
Step-by-step explanation:
Answer:
264.6
Step-by-step explanation:
ok first of all if you are subtracting a negative the it becomes a positive
136 - (-128.6)
136 + 128.6
this is what goes on in my head you don't have to do it this way but i do
100 + 100 = 200
30 + 20 = 50
6 + 8.6 = 14.6
200 + 50 + 14.6 = 264.6
please help it’s for an assignment!
Answer:
the answer would be B: 4x=3y
Step-by-step explanation:
this is perimeter which means that you add the side lengths all together.
5x-3y+x+4y-2x+2y
then you just add the like terms
Answer:
b) 4x + 3y
Step-by-step explanation:
add all equations (perimeter = side + side + side)
P= 5x-3y + x+4y -2x+2y
combine like terms
5x + x - 2x = 4x and -3y + 4y + 2y = 3y
P = 4x + 3y
HELP ME ASAP
The sum of two right angles always|sometimes|never results in a straight angle. Justify your answer. (WHICH ONE IS IT???)
Answer:
always
Step-by-step explanation:
a straight line is always 180 degrees, and one right angle is always 90 degrees. if you have two right angles, it always adds up to 180 degrees, which is a straight line. therefore, the answer is always.
M<1=3x+7, m<5=5x-3. Find the value of each variable.
Answer: x=5
Step-by-step explanation:
To find the value of x, we set the measures of 1 and 5 equal to each other.
3x+7=5x-3 [subtract both sides by 5x]
-2x+7=-3 [subtract both sides by 7]
-2x=-10 [divide both sides by -2]
x=5
Now, we know that x=5.
Useing order of operations (32/8)+27-11
Answer:
20
Step-by-step explanation:
Using order of operations, we have to divide 32 by 8 first since its in parentheses, then add and subtract from left to right, so: (32/8)+27-11 = 4 + 27 - 11 = 31 - 11 = 20
An isosceles trapezoid has a perimeter of 41 in. Its short base measures 1 inch and its longer base measures 2 inches. the two remaining sodes have the same length what is that length ?
Answer:
it is 6 inches
Step-by-step explanation:
How many solutions do the following equations have?
Please show steps
8x + 10 = 8x - 7
Answer:
No Solutions
Step-by-step explanation:
Step 1:
8x + 10 = 8x - 7 Equation
Step 2:
10 = - 7 Subtract 8x on both sides
Step 3:
10 ≠ - 7 No Solutions
Answer:
No Solutions
Hope This Helps :)
Step-by-step explanation:
it has 8 because it got both numbers of 8
Count and fill in the missing numbers.
..., 44, 45, 46, 47, 48,
Answer: 49 50 51 ?
Step-by-step explanation:
Answer:
49
Keep adding 1
*Hard*
Look at attachment or picture
Answer:
x = 10.5
Step-by-step explanation:
Work in the screenshots
I used a online calculator
symbolab. com
Show work please 100 points plus brainliest
Answer:
10. :)
Step-by-step explanation:
What is the volume of a pencil box that is 10 cm high, 18 cm wide, and 1.6 cm long?
Answer:
288
Step-by-step explanation:
L × W × H = V10 × 18 × 1.6 = 288I hope this helps!
-12x+(-4)=56
-2.1x+(-3.9)=10.8
Answer:
X=-5
X=-7
Step-by-step explanation:
-12x+(-4)=56
rewrite the equation to -12x-4=56
add 4 to both sides
-12x=60
Divide by -12 on both sides
x=-5
-2.1x+(-3.9)=10.8
-2.1x-3.9=10.8
-2.1x=14.7
divide by -2.1 on both sides
x=-7
Hi hope your having a good day please answer this
In a scale model of a ferris wheel, the height is 8 inches. If the actual height of the wheel is 96 feet, what is the scale of the model?
A. 1 in = 12.5 ft
B. 1 in = 12 ft
C. 1 in = 16 ft
D. 1 in = 11 ft
Answer:
12 simple division
Step-by-step explanation:
Answer: A
Step-by-step explanation:
if m<1=27 degrees find the m<4
Answer:
Can you specifiy?
Step-by-step explanation:
Sam is a manager in an office
Answer:
Sorry but this is not really a question so we can't answer it
What is the value of Y?
I would say y=1.5x +8
When Aaron started, he was on page 8 (Which is the +8 part.) he reads 1.5 pages every minute (Which is the 1.5x part.)
How do you summer camp there are 50 girls out of 80 campers what is the ratio of written as a fraction in simplest form
Janie is three years younger than her brother chad the sum of their ages is 27 how old is Janie
Answer:
Janie is 12
Chad is 15
Step-by-step explanation:
27 - 3 = 24
24 : 2 = 12
12 + 3 = 15 (Chad)
27 - 15 = 12 (Janie)
Janie is three years younger than her brother Chad and she is 12 years old
Janie is 3 years younger than her brother Chad.
let
Chad age = x
Janie age = x - 3
The sum of there ages is 27. Therefore,
x + x - 3 = 27
2x - 3 = 27
2x = 30
divide both sides by 2
x = 30 / 2
x = 15
Chad age = 15 years
Janie's age = 15 - 3 = 12 years
learn more about word equation here: https://brainly.com/question/10929404?referrer=searchResults
find the x- and y- intercepts of the graph of the linear equation
3x + 6y = 12
x Intercept:
y intercept:
Which set of graphs can be used to find the solution set to 3 log2(x + 4) < 6?
Answer:
It's graph D
Step-by-step explanation:
Answer:
Graph D
Step-by-step explanation:
E D G E
See that's 6/23 is not the answer
Answer:
6/8,
Step-by-step explanation:
Answer:
You tried and that’s what matters, better luck next time. I‘lol ray to help you next time. Good Job
The rectangles shown above are similar.
What is the measure of x?
A. 44 millimeters
B. 46 millimeters
C. 55 millimeters
D. 66 millimeters
Answer:
the answer is d 66 millimetres
Step-by-step explanation:
you have you solve it by doing multiplication and divide it by what ever number you have
What is the value of x in the equation? 7x+3=4x-9
Answer:
X=-4
Step-by-step explanation:
A line through (-2, 1)
With slope = 1/4
Answer:
y = 1/4x + 1.5
Step-by-step explanation:
To solve a problem like this we can use the formula y - y1 = m(x - x1), in which y1 is the y coordinate, x1 is the x coordinate, and m is the slope.
Equation:
y - 1 = 1/4(x + 2)
y - 1 = 1/4x + 0.5
y = 1/4x + 1.5
Answer:
[tex]y=\frac{1}{4}x+\frac{3}{2}[/tex]
Step-by-step explanation:
A line has the following equation
[tex]y=mx+b\\\\\longrightarrow m=slope\\\\m=\frac{1}{4}\:given\\\\\longrightarrow b= constant\\\\\Rightarrow y=\frac{1}{4}x+b\\\\(-2,1)\rightarrow\:x=-2,\:y=1\\\\(1)=\frac{1}{4}(-2)+b\\\\1=-\frac{1}{2}+b\\\\b=1+\frac{1}{2}\\\\b=\frac{2}{2}+\frac{1}{2}\\\\b=\frac{3}{2}\\\\\Longrightarrow y=\frac{1}{4}x+\frac{3}{2}[/tex]
Plzzzz helllpppp if you can
Answer:
89
Step-by-step explanation:
The sum of the angles in a triangle is always 180 degrees. So if you add 50 and 41 together, you get 91. 190-91= 89 degrees.
Show work please 100 points plus brainliest
Answer:
You have to replace x with 5
Step-by-step explanation:
-5^4+3(5)^3+11(5)^2+5(5)-9
41 <= answer
Answer:
Replace x with 5
Step-by-step explanation:
-5^4+3(5)^3+11(5)^2+5(5)-9
41 <= answer
I need help ASAP!!!!!
Answer:
y = 50
Step-by-step explanation:
Firstly, let's make an equation. We know that when y is 15, x is 3. Or, in other words, y is 5 times what x is. Therefore we can use the equation, y = 5x.
Now, just plug x into the equation.
y = 5(10)
y = 50