Answer: no solution
Why?: because when a problem has no solution you'll end up with a statement that's false. For example: 0=1 This is false because we know zero can't equal one. ... So, we say this problem has no solution. This means no matter what number you put in for the variable x, you will never get anything that equals one another. hope it helps!
PLZ HELP AND CAN U PLZ EXPLAIN
What is the formula for calculating the efficiency of a heat engine?
Answer:
StartFraction T Subscript h Baseline minus T Subscript C Baseline over T Subscript h Baseline EndFraction times 100
Step-by-step explanation:
could i have brainliest plz i so close to next rank
Answer:
its a
Step-by-step explanation:
Consider the equations shown: ax + by = ab & 2ax + 3by = 3b Which of these is the value of y in terms of a? Option 1 : y = 3a – 35 Option 2 : y = 2ab – 3b Option 3 : y = 9a – 35 Option 4: y = 3 – 2a
Answer:
Option 4: y = 3 – 2aStep-by-step explanation:
Given the simultaneous equation;
ax + by = ab ......... 1
2ax + 3by = 3b .....2
Required
Express y in terms of a
Using elimination method to eliminate x variable.
eqn 1 * 2 and eqn 2 *1 will give;
2ax + 2by = 2ab
2ax + 3by = 3b
Subtract
2by - 3by = 2ab - 3b
-by = 2ab - 3b
-by = b(2a-3)
-y = 2a-3
multiply through by -1
y = -2a + 3
y = 3-2a
Hence the value of y in terms of a is y = 3-2a
Yesterdays afternoon temperature was 21 °F. It plunged overnight to -3 °F. How many degrees did the temperature drop?
A. 3°
B. 18°
C. 21°
D. 24°
Answer:
the answer is b. 18
Differentiate between a fixed and movable pulley.
Answer:
Step-by-step explanation:
A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.
PLEASE HELP ME ASAP! ILL GIVE YOU BRAINLEST!
Answer:
13/99
Step-by-step explanation:
First convert the expression, turn 13 into 13/1: 13/1 × 1/99
Next you multiply: 13/1 × 1/99 = 13/99
l.c.m of 21,24,26 what is it plz I need answers
Answer:
LCM of 21,24 and 26 is 2184
Step-by-step explanation:
We need to find LCM of 21,24 and 26
For finding LCM divide the given numbers by a prime number if two of the numbers are divisible by that prime number
2 | 21,24,26
2 | 21,12,13
2 | 21,6,13
3 | 21,3,13
7 | 7,1,13
13 | 1,1,13
| 1,1,1
So, LCM of 21,24 and 26 is: 2 x 2 x 2 x 3 x 7 x 13 = 2184
OMG HELP PLEAAASE ILL BRAINLIST YOU
What is the tip answer?
Answer:
100.60
Step-by-step explanation:
15% of 87.48 is 13.12
[tex]a/87.48[/tex] x [tex]15/100[/tex]
cross multiply, you get 13.12
add up 13.12 and 87.48, you get 100.60
The radius “r” of a sphere is increasing at a rate of 2 inches per minute. Find the rate of change of the volume when r= 6 and r= 24 inches.
Answer:
3 and 12
Step-by-step explanation:
just multiply 2 x 3 and 2 x 12 and it would give you 6 and 24 :) I hope this help
recipe for two dozen cookies calls for 234cups of sugar. How much sugar is needed to make one dozen cookies? A 38cupsover33, cups B 138cupsove1r, cups C 134cupsover34, cups D 512cups5 and 1 half cup
Answer:
117 cups
Step-by-step explanation:
two dozen cookies calls for 234cups of sugar
2 dozen cookies = 234 cups of sugar
How much sugar is needed to make one dozen cookies?
Let x = cups of sugar needed
1 dozen cookies = x cups of sugar
2 dozen cookies : 234 cups of sugar = 1 dozen cookies : x cups of sugar
2 : 234 = 1 : x
2 / 234 = 1 / x
Cross product
2*x = 234 * 1
2x = 234
x = 234 / 2
= 117 cups
Your options are wrong because none corresponds with the answer
2x + 3y - 10 = 0
2x -y-2 = 0
Answer:
2
x
+
3
y
−
10
=
0
Solve for
y
.
Tap for more steps...
y
=
−
2
x
3
+
10
3
Use the slope-intercept form to find the slope and y-intercept.
Tap for more steps...
Slope:
−
2
3
y-intercept:
10
3
Any line can be graphed using two points. Select two
x
values, and plug them into the equation to find the corresponding
y
values.
Tap for more steps...
x
y
1
8
3
2
2
Graph the line using the slope and the y-intercept, or the points.
Slope:
−
2
3
y-intercept:
10
3
x
y
1
8
3
2
2
Step-by-step explanation:
i am sorry it came like this
Solve for 3a:
a + 4 = 4a + 2
3a
Answer:
x = 2/3
2/3*3 = 2
Step-by-step explanation:
Evaluate the exponential expression using the order of operations.
(6+3)4
Answer:
36.
Step-by-step explanation:
6 plus 3 is 9 and 9 times 4 is 36, hope this helps.
Find the slope of the line that goes through the given points. (-10, -3) and (-7, -9)
Answer:
-2
Step-by-step explanation:
rise over run or, y2-y1/x2-x1
please help me solve this
Which excerpt from “The Treasure of Lemon Brown” would provide strong evidence that Greg tries to avoid his father at the beginning of the story?
Answer: C
explanation:
i took the test
Answer:
c
Step-by-step explanation:
I took the test on edge
Find the equation of a line that passes through the points (2, 5) and (2, 12) with steps
Answer:
x = 2Step-by-step explanation:
y = mx + b
Unknown:
b = intecept = ?
mx = slope = ?
y = equation = ?
Known:
Coordinates needed
1. Find the slope
(y2 - y1)/(x2 - x1)
(12-5)/(2-2) = undefined
Vertical line
2. Find the intercept
intercept = N/A
x - intercept = 2
Equation:
x = 2Hope this helped,
Kavitha Banarjee
HELPPPPPPPPPPPPPPP!!! WILL MARK BRAINLIEST!!!
Celeste is making ribbon hair bows to sell for a school fundraiser. She cuts strands of ribbon that are 4 5/8 inches long, and each hair bow requires 3 strands. If a spool of ribbon holds 500 inches of ribbon, how many complete hair bows can she make from one spool?
36
Step-by-step explanation:
4 5/8*3 is 13.875
500 decided by 13.875 is a little over 36, so you can make 36 full ribbons
Answer:36
Step-by-step explanation:
4 5/8*3 is 13.875
Explain the Error: Alan says that two lines in the coordinate plane are perpendicular if and
only if the slopes of the lines are m and 1/m. Identify and correct two errors in Alan’s statement.
Answer:
Check the step-by-step
Step-by-step explanation:
To get the perpendicular you need to find the negative reciprocal, therefore, he is wrong as he did not switch the negative/positive sign in m & 1/m. Also, if m is a fraction like 5/3, the reciprocal would not be 1/m, it would be 3/5 as you flip the denominator and numerator.
a rectangle length is 3 times its width. The area is 27 square inches
A square and a rectangle have the same area. The length of the rectangle is twelve more than twice times the side of the square. The width of the rectangle is eight less than the side of the square. Let x be the length of the side of the square. Using the information above, what is the value of x?
Answer:
[tex]x = 12[/tex]
Step-by-step explanation:
Given
Shapes: Square and Rectangle
Square:
[tex]Length = x[/tex]
Rectangle:
[tex]Length = 12 + 2x[/tex]
[tex]Width = x- 8[/tex]
Required
Find x
First, we calculate the area of the square.
[tex]Area = x * x[/tex]
[tex]Area = x^2[/tex]
Next, we calculate the area of the rectangle
[tex]Area = (12 + 2x) * (x - 8)[/tex]
[tex]Area = 12x -96 + 2x^2 - 16x[/tex]
[tex]Area = 2x^2 - 16x + 12x -96[/tex]
[tex]Area = 2x^2 -4x -96[/tex]
Since both areas are equal, we have:
[tex]x^2 = 2x^2 -4x -96[/tex]
Equate to 0
[tex]2x^2 -x^2 -4x -96= 0[/tex]
[tex]x^2 -4x -96= 0[/tex]
Expand:
[tex]x^2 - 12x + 8x -96 = 0[/tex]
[tex]x(x - 12) + 8(x - 12) = 0[/tex]
[tex](x + 8)(x - 12) = 0[/tex]
[tex]x + 8 = 0[/tex] or [tex]x - 12 = 0[/tex]
[tex]x = -8[/tex] or [tex]x = 12[/tex]
But x can't be negative.
Hence:
[tex]x = 12[/tex]
PLS SOLVE guys I need this
Find the measure of ∠Z.
45°
75°
105°
Answer:
75
Step-by-step explanation:
X and Y are the same so Y would be 105 as well. The trapezoid as a whole equals 360 degrees. Take 360 and subrtract 105 twice and you'll get 150. Divide 150 by 2 and you'll get 75. W and Z will both equal 75.
A survey showed that 4 out of 5 students own a bicycle. Based on this result, how many of the 800 students in a school own a bicycle?
Answer:
640 students own a bicycle
Step-by-step explanation:
The rate shows that 4 out of 5 students own a bicycle. 4 out of 5 is 80% of the students. Now, we need to find 80% of 800 students.
To do this, we multiply the number of students by .80, which represents 80%.
800 x 0.8 = 640
I Hope That This Helps! :)
Answer:⅘ x 800= 640 640 out of the 800 students in a school own a bicycle.
Step-by-step explanation: ⅘ x 800= 640
-7(a – 9) 2-77
Answer please
Answer:
-7 x (2a - 7)
H(x) = 4x-5 and h(x)= 17.
Answer:
5.5
4*5.5=22-5=17
Step-by-step explanation:
2 2/3 divided by 1 5/6
ANSWER ASAP
EXPALIN AND BE RIGHT TO BE THE BRAINLIEST
find hcf of 12 and 16 using division method
Find HCF of 12 and 16 using division method.
Explanation -:Step 1
First we will divide the larger number by the smaller number using long division.Step 2
We will divide till the remainder comes 0.If the remainder is not 0, then make the remainder as the divisor and the divisor as the dividend.Step 3
If the remainder is 0 then the divisor of the last division is the GCF.HCF of 12 and 16 is 4.
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \scriptsize{ \sf{spbankingandsscseries}}[/tex]
Find the slope of the line.
Answer:
The slope is -1. Use the rise over run method for the two given points.
Answer:
m = - 1
Step-by-step explanation:
m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
( - 3 , 1)
(1 , - 3)
m = [tex]\frac{-3-1}{1 + 3}[/tex] = - 1
m = - 1
