Answer:
x = 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
4x - 8 = 16
Step 2: Solve for x
Add 8 to both sides: 4x = 24Divide 4 on both sides: x = 6Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 4(6) - 8 = 16Multiply: 24 - 8 = 16Subtract: 16 = 16Here we see that 16 does indeed equal 16.
∴ x = 6 is the solution to the equation.
Answer:
x=6
Step-by-step explanation:
4x-8=6
4x-8=16+8
8
4x=24
4x=24
4 4
x=6
OREGON TRAIL! (pls help)
So far you have completed 816 miles
which is 54% of the trail.
Can you find about how many miles for the total trip?
SOMEONE PLS HELP ME ON ALL THESE ASAP!!!!!
Answer:
4Q a). angle1=55°
angle2=23°
angle3=63°
angle4=125°
5Q. x=35°
6Q. y=15°
8Q. C. 28°
9Q. Yes, they are congruent by S.S.S. congruence
10Q. A.A.S.
11Q. S.S.S.
12Q. Not possible
13Q. S.A.S.
14Q. S.S.S.
15Q. 66°
16Q. 24°
I hope it will be useful.
Step-by-step explanation:
7Q. angle1=angle3 (Alternate Interior Angles)
angle2=angle4 (A.I.A.)
angleXWZ=angleXYZ (opposite angles of a parallelogram)
By A.A.A. congruence criteria, they are congruent.
8Q. Hint: Make the diagram first!
AngleC is halved since M is the mid-point.
angleA=angleB (Property of an isosceles triangle)
which implies, angleAMC=angleBMC=90°
Thus, CM is perpendicular to AB.
I hope it will be useful.
How can you tell if a table represents a proportional relationship?
Answer:
from my knowledge i have made a sample here it is:
To see if multiple ratios are proportional, you could write them as fractions, reduce them, and compare them. If the reduced fractions are all the same, then you have proportional ratios.
Step-by-step explanation:
brainliest?
How much should be added to the sum of 25 1/6 and 7 2/5 to get 60?
Answer:
3.77 should be added
hope it helps.
Answer:
823/30
or 27 13/30
decimal: 27.43
Step-by-step explanation:
(25+7)+ (1/6 + 2/5)
32+ (5/30 + 12/30)
32+ 17/30
= 32 17/30
60- 32 17/30
= 1800/30 - 977/30
= 823/30
= 27 13/30
Write and solve a proportion to complete the statement. Round to the nearest hundredth. 2800 ft ≈ mi
Answer:
1 mile = 3 ft
Therefore, the number of miles that equal 2800 ft is 2800÷3.
The answer: 933.33
Step-by-step explanation:
If you were to use the substitution method to solve the following system, choose the new
equation after the expression equivalent to x from the second equation is substituted into the
first equation.
2x – 3y = -29
x + 4y = 13 (6 points)
1) 2(4y + 13) – 3y = -29
2) 2(-4y + 13) – 3y = -29
3) 2x - 3(4y + 13) = -29
O4) 2x - 36-4y + 13) = -29
Answer:
Option 2
Step-by-step explanation:
We will use the substitution method, as the question asks for. The second equation (where x or y is isolated on one side) will be susbstituted as the x or y in the first equation.
2x-3y=-29
x+4y=13
let's isolate x onto one side in the second equation.
Subtract 4y from both sides
x=-4y+13
now we can substitute the expression as x in the first equation
2(-4y+13)-3y=-29
it's the 2nd option
Hope this helps!
What is the equation of the given linear function? x y 0 8 1 17 2 26 -3 -19
A. f(x)=8x+9
B. f(x)=9x+8
C. f(x)=9x
D. f(x)=17x
Answer:
Step-by-step explanation:
is 0.21 greater than 0.27
Answer:
no
Step-by-step explanation:
0.27 is greater than 0.21
hope it helps
What is m% of n? Please help!
Answer:
nm/100
Step-by-step explanation:
Solve the system of equations:
y = 2x
y=x2-3
A. (-1,2) and (3, 2)
B. (-2, -4) and (2, 4)
C. (-2, 1) and (2, 1)
D. (-1, -2) and (3, 6)
Answer:
D. (-1, -2) and (3, 6)
Step-by-step explanation:
y = 2x
y = x² - 3
2x = x² - 3
x² -2x - 3 = 0
(x + 1)(x - 3) = 0
x = -1 or x = 3
y = -2 or y = 6
Help needed ASAP! Please
Answer:
r =5
Step-by-step explanation:
1,615×10 to the power of 2
please help(lots of pts) which table represents the increasing linear function with the greatest unit rate?
A.
x y
2 16
5 10
B.
x y
2 14
6 12
C.
x y
2 -24
5 -15
D.
x y
2 -12
6 -16
E.
x y
2 -19
6 -17
Answer:
I believe the answer is B
Step-by-step explanation:
Hope this helps :D
The class has 12 girls and 16 boys. What is the ratio of total students to boys in simplest form?
Answer:
7:4 is the simplest form.
Step-by-step explanation:
total number of students is 28 and number of boys is 16 which makes the ratio 28:16
when we simplyfy it we get 7:4.
What is the absolute value [-5.6]
Answer:
5.6 brainlist plz
Step-by-step explanation:
Answer:
5.6
Step-by-step explanation:
Just take the negative sign out and you have your answer, because you can't have a negative answer as a absolute value.
Hope this helps!!! :D
help this is geometry
Answer:
a=corresponding sides of congruent triangles
b= by SAS condition ( ac=ce, acb=oce,oc=cb)
Which trigonometric functions have a domain of [–1, 1]?
A.) y = arcsinx and y = arccosx
B.) y = arccosx and y = arctanx
B.) y = arcsinx and y = arctanx
D.) y = arcsecx and y = arccscx
Answer:
The answer is A. y = arcsinx and y = arccosx
Step-by-step explanation:
Given: f(x) = 2x^2 - 2x - 4
a.explain how to create a table value for f(x) and make a table for f(x).
b. Explain how to graph using the table and graph f(x).
15 POINTS AND ILL MARK BRAINIEST
State the Axis of Symmetry of the function:
f(x)=-|-x-2|-4
Answer:
x = 4 i think
Step-by-step explanation:
Solve the equation:
-4x - 12 = 8
-4x - 12 = 8
+ 12 +12
-4x = 20
-4 -4
x = -5
To ensure that x equals -5, let's substitute the negative integer with x.
-4 x -5 - 12 = 8
-20 - 12 = 8
8 = 8
Therefore, the answer is x = -5 because we confirmed our answer by substituting x with -5 and solving the equation and got the both sides of the equation equal.
The solution to the equation -4x - 12 = 8 is x = -5.
To solve the equation -4x - 12 = 8, we'll isolate the variable x by performing the necessary steps.
First, we'll add 12 to both sides of the equation to eliminate the constant term on the left side:
-4x - 12 + 12 = 8 + 12
This simplifies to:
-4x = 20
Next, we'll divide both sides of the equation by -4 to isolate x:
(-4x)/-4 = 20/-4
This yields:
x = -5
Hence, the solution to the equation -4x - 12 = 8 is x = -5.
By performing the necessary operations of addition, subtraction, and division, we have determined that x is equal to -5, satisfying the equation. This can be verified by substituting x = -5 back into the original equation and confirming that both sides are equal.
To learn more about the linear equation;
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hi can anyone plz help me with this and can you explain how you got it
Answer:
x = 62
Step-by-step explanation:
Since the 2 legs of the triangle are congruent, both 6 , then the triangle is isosceles and the base angles are congruent, that is
x = [tex]\frac{180-56}{2}[/tex] = [tex]\frac{124}{2}[/tex] = 62
ssssssssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhStep-by-step explanation:
I need help I would really appreciate it !!
Find the value of x in the proportion. Check your answer.
30
15
14
Х
x=0
what is x?
Answer:
Step-by-step explanation:
Pls help. I’m begging you.
Answer:
n=6
Step-by-step explanation:
Need help answer ASAP
Answer:
.1i01390
Step-by-step explanation:
The length, l, of the shadow cast by an object varies directly as the height, h, of the object. If k is the constant of variation, which equation represents this situation?
A.
l + h = k
B.
lh = k
C.
l = hk
D.
l = h + k
Answer:
C. l = hk
Step-by-step explanation:
the equation for direct variation is y = xk (or y/x = k) so you just replace y and x with l and h
The length of the shadow cast l represents by situation l = hk. Hence, option (C) is correct.
What is the linear relation of an equation?An equation has a linear relation if a variable from that equation varies linearly with the other variable.
for example, x is varied linearly with y then we can write
x ∝ y
x = yk where k will be the constant of variation.
Given that length, l is varies directly as the height h
Hence, l = hk will be the correct representation.
For more information about direct variation.
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How would I divide decimals by a whole number?
Answer:
divide the two numbers ignoring the decimal point and then place the decimal point in the quotient in the same position as in the dividend
please help
The map of a biking trail is drawn on a coordinate grid.
The trail starts at P(−2, 2) and goes to Q(5, 2).
It goes from Q to R(5, −5) and then to S(8, −5).
What is the total length (in units) of the biking trail?
10
16
17
18
Answer:
17 units
Step-by-step explanation:
Distance between points [tex](a,b)\,,\,(c,d)[/tex] is given by [tex]\sqrt{(c-a)^2+(d-b)^2}[/tex]
The trail starts at P(−2, 2) and goes to Q(5, 2).
Take [tex](a,b)=(-2,2)\,,\,(c,d)=(5,2)[/tex]
[tex]PQ=\sqrt{(5+2)^2+(2-2)^2}=\sqrt{7^2}=7[/tex] units
It goes from Q to R(5, −5)
Take [tex](a,b)=(5,2)\,,\,(c,d)=(5,-5)[/tex]
[tex]QR=\sqrt{(5-5)^2+(-5-2)^2}=\sqrt{(-7)^2}=7[/tex] units
It goes from R to S.
Take [tex](a,b)=(5,-5)\,,\,(c,d)=(8,-5)[/tex]
[tex]RS=\sqrt{(8-5)^2+(-5+5)^2}=\sqrt{3^2}=3[/tex] units
[tex]PQ+QR+RS=7+7+3=17[/tex] units
is it one to one or onto? why?
Answer:
Step-by-step explanation:
Given quadratic function is,
f(x) = -x² - x + 1
Range of the function has been defined as (-∞, [tex]\frac{5}{4}[/tex] ]
Domain of the function is a set of all real numbers.
From the graph of this function,
At x = -3 and x = 2, value of y = -5
But for one to one functions, every x value should map to a different value of y.
Therefore, function is not one to one.
Since, every value of domain (x-value) maps the range (y-value) in the given range (-∞, [tex]\frac{5}{4}[/tex] ], function will be defined as onto.
Therefore, this function is ONTO, but NOT ONE TO ONE.
Please can someone help.
Answer:
Step-by-step explanation:
Challenge # 1
Line has a negative slope with positive slope.
Therefore, equation will be,
y = 1.5x - 6
Parallel line to the given line will have same slope = 1.5 but with different y-intercept.
Equation of the parallel line → y = 1.5x + 6
Challenge # 2
Line has a negative y-intercept = -1 (Approx.)
Slope of the line = negative
Therefore, equation of the line will be,
y = -3.7x -1
Line parallel to the given line will have same slope but different y-intercept.
Equation of the parallel line → y = -3.7x + 1
Challenge # 3
Line with negative slope and no y-intercept.
y = -0.8x
Parallel line to the given line will have same slope and different y-intercept.
Equation of the parallel line → y = -0.8x + 1
Challenge # 4
Line in the graph has positive slope and negative y-intercept.
y = -5 + 4.2x
Line parallel to the given line will have same slope but different y-intercept.
Equation of the parallel line → y = - 7 + 4.2x