Answer:
a. [tex]5 + (-3x) = -4[/tex]
b. [tex]5 + (-3x) = 4[/tex]
c. [tex]5 + (-3x) = 14[/tex]
Step-by-step explanation:
Given
[tex]5 + (-3x)[/tex]
Required
Evaluate
(a) x = 3
[tex]5 + (-3x) = 5 + (-3*3)[/tex]
[tex]5 + (-3x) = 5 + (-9)[/tex]
Remove bracket
[tex]5 + (-3x) = 5 -9[/tex]
[tex]5 + (-3x) = -4[/tex]
(b) x = 1/3
[tex]5 + (-3x) = 5 + (-3*1/3)[/tex]
[tex]5 + (-3x) = 5 + (-1)[/tex]
Remove bracket
[tex]5 + (-3x) = 5 -1[/tex]
[tex]5 + (-3x) = 4[/tex]
(c) x = -3
[tex]5 + (-3x) = 5 + (-3*-3)[/tex]
[tex]5 + (-3x) = 5 + (9)[/tex]
[tex]5 + (-3x) = 14[/tex]
drag and drop the numbers into the table to complete the table of values for the equation y=4x+9
Answer:
Step-by-step explanation:
you can look at the y=4x+9
1 4-9 or 4+9 o
2 4-9 = 5
3 5-4 = 9
The complete table of the values for the equation y = 4x + 9 is;
x - 2 - 1 0 1 2
y 1 5 9 13 17
What is substitution method?
To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.
Given that;
The equation is,
⇒ y = 4x + 9
Now,
Solve the equation for the values of x as;
The given values for x are;
x = - 2, - 1, 0 , 1 , 2
So, Find the value of y as;
Substitute x = - 2 in the equation we get;
⇒ y = 4x + 9
⇒ y = 4 × - 2 + 9
⇒ y = - 8 + 9
⇒ y = 1
Substitute x = - in the equation we get;
⇒ y = 4x + 9
⇒ y = 4 × - 1 + 9
⇒ y = - 4 + 9
⇒ y = 5
Substitute x = 0 in the equation we get;
⇒ y = 4x + 9
⇒ y = 4 × 0 + 9
⇒ y = 0 + 9
⇒ y = 9
Substitute x = 1 in the equation we get;
⇒ y = 4x + 9
⇒ y = 4 × 1 + 9
⇒ y = 4 + 9
⇒ y = 13
Substitute x = 2 in the equation we get;
⇒ y = 4x + 9
⇒ y = 4 × 2 + 9
⇒ y = 8 + 9
⇒ y = 17
Thus, The complete table of the values for the equation y = 4x + 9 is;
x - 2 - 1 0 1 2
y 1 5 9 13 17
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PLEASE HELP PLEASEEE!!!
Use the appropriate identity to rewrite the expression x^9 - 27
A) (x)^9-(3)^3
o
B) (x^3)^3-(3)^3
o
C) (x)^3-(3)^3
o
D) (x^3)^2-27
Answer:
A
Step-by-step explanation:
Cuando se tienen dos exponencial una dentro y otra fuera del paréntesis se suman debido a esto la A es la única que cumple con la ecuación
someone help me solve these three math year7 questions , thank you
Answer:
1.
(a)input:9, output:8&12
(b)input:14,output:3&13
(c)input:7&20,output:50
2.
(a)input:7&6,output:18
(b)input:9&8,output:12
(c)input:14&26,output:0.5
3.
(a)+3
(b)÷3
(c)x7
Alexis wrote 28 - 8 = 20. Then she
wrote 28 -8 + 9 = 20 – 9. Are her
equations balanced? Explain.
Answer:
no this is because 28-8+9=29 and 20-9=11
Step-by-step explanation:
Answer:
Her equation is not balanced.
Because 28 - 8 + 9 = 20 - 9
29 = 11 ( its not balanced)
She put the same symbol or sign on both side.Here she put different sign on both side .so this equation is not balanced.
Step-by-step explanation:
If Amy has two apples and drops one, how many does she have now?
If BE = 2x + 2, BD = 5x – 3, and AE = 4x – 6, what are the values of x and AC?
Answer: x=7 and AC = 44 unuts.
Step-by-step explanation:
We know that the diagonals of a parallelogram bisect each other. (i)
Here in parallelogram ABCD , AC and Bd are diagonals intersecting at E.
BE = 2x + 2, BD = 5x – 3, and AE = 4x – 6
Using (i)
[tex]BE=\dfrac{BD}{2}\\\\2x+2=\dfrac{5x-3}{2}\\\\ 2(2x+2)=5x-3\\\\ 4x+4= 5x-3\\\\ 5x-4x=4+3\\\\ x= 7[/tex]
Now , AE = 4(7)-6 = 28-6 = 22
AC =2 AE = 2 (22) =44 units.
Hence, x=7 and AC = 44 unuts.
help me will mark as brainliest only the 8th one
Answer:
Step-by-step explanation:
Perimeter of rectangle = 52 cm
2*(length + width) = 52
2*(l + 42/5) = 52
[tex]l +\frac{42}{5}=\frac{52}{2}\\\\l+\frac{42}{5}=26\\\\ l = 26 - \frac{42}{5}\\\\ l = \frac{26*5}{1*5}-\frac{42}{5}\\\\l = \frac{130}{5}-\frac{42}{5}\\\\l=\frac{130-42}{5}\\l= \frac{88}{5}\\\\[/tex]
can sombody please answer this.
Answer:
option (3)is correct, take 180 +180=360
Step-by-step explanation:
I DON'T KNOW IF THIS IS CORRECT IM SORRY IF IT'S WRONG!!!!!!
An isosceles triangle has a base of 44 inches and an altitude of 58 inches. What is the length of each leg?
Answer:
hello! although i am not really knowlegeble about this subject, i hope the lengths below can help you solve the problem :)
Step-by-step explanation:
side length: 62.03inches
perimeter: 168.06
area:1276
if this does help you, a brainliest would be appreciated!
Given the following table and graph, write an equation to represent the exponential function
Answer:
amogus??
Step-by-step explanation:
Describe and correct the error shown to the right that a student made when writing a recursive formula from an explicit formula. Picture below shows the explicit formula and the incorrect recursive formula.
Just kidding.
now help me for 100 points.
What is the equation of the line in y=mx+b format?
Answer:
it would be y=2x +4
Step-by-step explanation:
it's rise over run and the y into would be 4
Answer:
y = -1/2x + 4Step-by-step explanation:
Find your y-intercept, then find your slope. This line's slope is negative (you can see this because of the change in direction in which the line is heading).
the distance between the park is 1.7 meters how many meters is this?
Answer:
1.7 meters?
Step-by-step explanation:
Which equation can be used to solve for x in the following diagram?
7xº
11x°
Answer:
7x° + 11x° = 90°
(Required equation)
Step-by-step explanation:
7x° + 11x° = 90°
(complementary angles)
18x° = 90°
18x = 90
x = 90/18
x = 5
For which of the equations below is x = 2 a solution?
A 2 + x = 2
B x - 7 = 5
C 3x = 6
Answer:
c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
A= x=0
B= x=12
C= x=2
Which fraction is halfway between 1/2 and 1 1/4
Answer:
3/4;4/4
very simple just make them like terms and count ok
please mark me as brainlist as brainlist
Answer:
[tex]\frac{7}{8}[/tex]
Step-by-step explanation:
Find the average by adding the 2 fractions and dividing the sum by 2
[tex]\frac{1}{2}[/tex] + 1 [tex]\frac{1}{4}[/tex]
= [tex]\frac{1}{2}[/tex] + [tex]\frac{5}{4}[/tex]
= [tex]\frac{2}{4}[/tex] + [tex]\frac{5}{4}[/tex]
= [tex]\frac{7}{4}[/tex]
Then
[tex]\frac{7}{4}[/tex] ÷ 2
= [tex]\frac{7}{4}[/tex] × [tex]\frac{1}{2}[/tex]
= [tex]\frac{7}{8}[/tex]
*PLEASE ANSWER!!! THANK YOU!!*
John waits on tables and is paid $8.00 an hour. In a 40-hour period, he earned $210.50 in tips. What were his total earnings?
a.) $530.50
b.) $1,684
c.) $520
Answer:
a.
Step-by-step explanation:
His total earning including tips of 210.50 dollars is a.) $530.50
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Given, John waits on tables and is paid $8.00 an hour. In a 40-hour period,
∴ His earning in those 40 hours is,
= (40×8) dollars.
= 320 dollars.
He also earned 210.50 dollars in tips.
∴ His total earnings is,
= (320 + 210.50) dollars.
= 530.50 dollars.
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What is the GCF of 20, 10 and 30?
Answer:
10 is the GCF
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Drag each angle measure to the correct location on the image. Not all angle measures will be used.
Determine the measures of the angles.
35°
70°
75°
100°
105°
110°
Answer:
i believe this is the question you asked added picture of correct answer on graded test
Step-by-step explanation:
What is the square root of 4?
Answer:
2
(Hope This Helped : 3 )
If P and S are rational numbers and R and Q are irrational numbers, which of these statements is true?
A The product of R and Q is always an irrational number.
B The product of P and S is always a rational number.
C The sum of R and Q is always an irrational number.
D The sum of P and Q is always a rational number.
Answer: B. The product of P and S is always a rational number.
Step-by-step explanation: The product AND sum of two rational numbers will ALWAYS be rational.
Denise and Aaliyah had lunch at the mall. Aaliyah ordered three slices of pizza and two waters. Denise ordered two slices of pizza and three waters. Aaliyah's bill was $6.00, and Denise's bill was $5.25. What was the price of one slice of pizza? What was the price of one water?
Liana spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 shirts then how many of each kind did she buy?
Mr. Velazquez purchased two donuts and three cookies and is charged $3.30. Ashley purchases five donuts and two cookies for $4.95 at the same shop. Find the cost of one donut and one cookie.
Answer:
3x + 2y=6
2x + 3y= 5.25
1 pizza slice = $1.50
1 water = $ 0.75
Step-by-step explanation:
u can write the equations for the questions and use photo math for the rest.....hoped it helped....
Which t-chart represents the absolute value equation y = 15x?
Answer:
The last one
Step-by-step explanation:
hope this helps!!
Answer:
The second chart
Step-by-step explanation:
The first chart represents a parabole, example:y=x^2.
The second chart represents a absolute value funtion, example: y=|x|
The last chart represents a lineal function, example:y=x
Write down the value of angle y, giving a reason for your answer
Y=
Other angle given is 67 degrees
Answer:
y would be 67 as well.
Step-by-step explanation:
they are alternate interior angles. hope it helps
In part (a) the missing angle of a triangle is 70 degrees and in part (b) the missing angle is 67 degrees.
What is the triangle?In terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
Part(a)
We have a triangle shown in the picture.
The two lengths of a triangle are equal.
The angle opposite to the sides will be equal.
As we know,
The triangle's interior angles add up to 180°.
180 = 55 + 55 + x
x = 180 - 110
x = 70 degrees
In part (b)
There are two parallel lines shown in the picture.
The angle y will be the same as 67 degrees because two parallel lines are cut by a transversal line.
Thus, in the part (a) the missing angle of a triangle is 70 degrees and in part (b) the missing angle is 67 degrees.
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Help neeed help please
reflection and translation.
Given:
The different transformation in the options.
To find:
The transformation that would result in the perimeter of a triangle being different from the perimeter of its image.
Solution:
In option 1,
[tex](x,y)\to (y,x)[/tex]
It represents reflection across the line y=x.
In option 2,
[tex](x,y)\to (x,-y)[/tex]
It represents reflection across the x-axis.
In option 3,
[tex](x,y)\to (4x,4y)[/tex]
It represents dilation by scale factor 4 and the center of dilation is at origin.
In option 4,
[tex](x,y)\to (x+2,y-5)[/tex]
It represents translation 2 units right and 5 units down.
We know that the reflection and translation are rigid transformations, It means the size and shape of the figure remains the same after transformation.
So, the perimeter of the figure and its image are same in the case of reflection and translation.
But dilation is not a rigid transformation. In dilation, the figure is similar to its image. So, the perimeter of the figure and its image are different in the case of dilation.
Therefore, the correct option is 3.
What is 18 2/3 divided by 4?
Answer:
4.65 or 4.67
depends on who you ask
Help me plz I need it
Answer: 171.19
V=lwh
w=3.65
l=14
h=7-3.65
=3.35
V=171.185 ≈171.19
Step-by-step explanation:
25 is what percent of 125?
40 is 25% of what number?
What number is 60% of 200?
Find 16% of 25
50 is ______% of 500
30 is 40% of what?
What is 140% of 20?
600 is 300% of what?
45% of the class is girls. There are 90 girls in the class. How many students are in the class?
40% of the voters voted for Jimmy B. 80 million people voted. How many votes did he get?
300 middle schooler’s vote on their favorite sport. 60 of them like hockey. What percentage of the students like hockey?
Answer:
1. 20%
2. 160
3. 120
4. 4
5. 10%
6. 75
7. 28
8. 200
9. 200 students
10. 32,000,000 votes (32 million)
11. 20%
Step-by-step explanation:
No clue if you want actual work shown but you posed so many questions that it would take forever to type out all the work.
PLZ HELP -geometry- Find the coordinates of the intersection of the diagonals of parallelogram GHJK with vertices G(1,3), H(4,3), J(5,1), and K(2,1).
The coordinates are ( , ).
Answer:
The coordinates of the intersection of the diagonal of the parallelogram are [tex]M(x,y) = (3,2)[/tex].
Step-by-step explanation:
Diagonals are represented by line segments GJ and KH. Since quadrilateral is a parallelogram, then coordinates of the intersection are located at midpoint of each diagonal ([tex]M(x,y)[/tex]). That is:
[tex]M(x,y) = G(x,y) + \frac{1}{2}\cdot \overrightarrow {GJ}[/tex]
[tex]M(x,y) = G(x,y) +\frac{1}{2}\cdot [J(x,y)-G(x,y)][/tex] (1)
If we know that [tex]G(x,y) = (1,3)[/tex] and [tex]J(x,y) = (5,1)[/tex], the coordinates of the intersection of the diagonals of the parallelogram are:
[tex]M(x,y) = (1,3) +\frac{1}{2}\cdot [(5,1)-(1,3)][/tex]
[tex]M(x,y) = (1,3) +\frac{1}{2}\cdot (4,-2)[/tex]
[tex]M(x,y) = (1,3) +(2,-1)[/tex]
[tex]M(x,y) = (3,2)[/tex]
There is another form:
[tex]M(x,y) = K(x,y) +\frac{1}{2}\cdot \overrightarrow{KH}[/tex]
[tex]M(x,y) = K(x,y) + \frac{1}{2}\cdot [H(x,y)-K(x,y)][/tex] (2)
If we know that [tex]K(x,y) = (2, 1)[/tex] and [tex]H(x,y) = (4,3)[/tex], the coordinates of the intersection of the diagonals of the parallelogram are:
[tex]M(x,y) = (2,1) + \frac{1}{2}\cdot [(4,3)-(2,1)][/tex]
[tex]M(x,y) = (2,1) + \frac{1}{2} \cdot (2,2)[/tex]
[tex]M(x,y) = (2,1) + (1,1)[/tex]
[tex]M(x,y) = (3,2)[/tex]
Therefore, the coordinates of the intersection of the diagonal of the parallelogram are [tex]M(x,y) = (3,2)[/tex].
If ( square root of 128 - square root of 72) is divided by square root of 8, the result is?
Answer:
[tex] \sqrt{128} - \sqrt{72} = 2.82842712474619 \\ \\ 2.82842712474619 \div \sqrt{8 } = 1[/tex]
HOPE IT HELPS! :)