Answer:
x=2, x=-2
Step-by-step explanation:
3x²-3+4x²-12=13
7x²=13+12+3
7x²=28
x²=4
x=-2
x=2
The price of a 9-minute phone call is $2.25. What is the price of a 19-minute phone call?
Answer:
$4.75
Step-by-step explanation:
9/2.25=19/x
cross product
2.25*19=9*x
42.75=9x
x=42.75/9
x=4.75
what is the equation of a line when m = -7 and b = -8?
Answer:
Step-by-step explanation:
y = mx+b
y = -7x - 8
Answer:
y=-7x-8
Step-by-step explanation:
y=mx+b
m=slope
b=y intercept
In the diagram, which is not drawn to scale, DE | FG || BC.
Answer:
FG || BC.
Step-by-step explanation:
In the diagram, which is not drawn to scale, DE | FG || BC.
The measure of DA is 20 cm, the measure of EG is 12 cm and the measure of GC is 18 cm.
What is an equal intercept theorem?The theorem states if a transversal makes equal intercepts on three or more parallel lines, then any other line cutting them will also make equal intercepts. It means that given any three mutually perpendicular lines, a line passing through them forms intercepts in the corresponding ratio of the distances between the lines.
Here, EG = GA - AE
= 36-24
= 12 cm
Here, ΔADE is similar to ΔAGF
Now, AE/GA = AD/FA
⇒ 24/36 = AD/(AD+10)
⇒ 24 (AD+10) = 36AD
⇒ 24AD+240 = 36AD
⇒ 12AD =240
⇒ AD =20 cm
Here, ΔAGF is similar to ΔABC
Now, 30/45 = 36/AC
⇒ 30AC = 36×45
⇒ AC = 54 cm
So, GC = 54-36 = 18 cm
Therefore, the measure of AD is 20 cm, the measure of EG is 12 cm and the measure of GC is 18 cm.
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PLEASEEEEEE HELPP ME EEEE :)
find the measure of
Answer:
The measure of what???
Solve the equation for all values of x in simplest form:
(x - 2)2 = 49
complete the algebraic table for y = 2x + 3
given: x ---> -2, -1, 0, 1, 2, 3
y ----> ?, 1, ?, ?,7,?
Answer:
y ----→ -1 , 1 , 3 , 5 , 7 , 9
Step-by-step explanation:
LINEAR EQUATION GIVEN IN THE QUESTION :- y = 2x + 3
In the question , some values of variable 'x' are given. Lets put each value of 'x' in the equation.
When x = -2 ; [tex]y = 2(-2) + 3 = -4 + 3 = -1[/tex]When x = -1 ; [tex]y = 2(-1) + 3 = -2 + 3 = 1[/tex]When x = 0 ; [tex]y = 2(0) + 3 = 0 + 3 = 3[/tex]When x = 1 ; [tex]y = 2(1) + 3 = 2 + 3 = 5[/tex]When x = 2 ; [tex]y = 2(2) + 3 = 4 + 3 = 7[/tex]When x = 3 ; [tex]y = 2(3) + 3 = 6 + 3 = 9[/tex]Thus , we got all the required values of y.
An uses they equation y= 8.25x to calculate the total cost y in dollars for x posters. How much did she spend on 6 posters?
Plez help finding percent change
Answer:
can't see proprly
Step-by-step explanation:
Which student evaluated the power correctly? Aida's Work 5 Superscript 4 = 5 times 5 times 5 times 5 = 625 Hector's Work 5 Superscript 4 = 5 times 4 = 20 Camila's Work 5 Superscript 4 = 5 + 5 + 5 + 5 = 20 Juan's Work 5 Superscript 4 = 5 times 5 times 5 = 125
Answer: Aida
Step-by-step explanation:
Superscript means to that power so 5 superscript 4 for means 5 to the 4th power
5x5x5x5
5x5=25 25x5= 125. 125x5= 625
Answer:
Its Aida
Step-by-step explanation:
The guy up there deserves brainly more than I do but...
Its correct on Edge 2021
I hope this helps you <3
Find the distance between 2 and -2
A) -6
B) -4
C) 0
D) 4
Answer:
d
Step-by-step explanation:
36% of 110 is what number?
36% of 110 is 39.6
I hope I helped!!!
please help with 5 please and thank you
Answer:
=4p^2−12p+13
Step-by-step explanation:
Let's simplify step-by-step.
4p^2−12p+13
There are no like terms.
please help (URGENT) (im slow)
Answer:
x=8
Step-by-step explanation:
3w - 11 = 25
can someone answer this plz
Answer:
w = 12
Step-by-step explanation:
3w = 11 + 25
3w = 36
w = 12
Hope that helps!
need help with this question asap !!!
Answer:
I think it is B
Step-by-step explanation:
=========================================================
Work Shown:
The smaller angles UVN and NVW add up to the largest angle UVW.
This is due to the angle addition postulate.
(angle UVN) + (angle NVW) = angle UVW
(6x+13) + (46) = 11+10x
6x + 59 = 11 + 10x
6x - 10x = 11 - 59
-4x = -48
x = -48/(-4)
x = 12
----------------
Extra info:
If you're curious about the angles, then we use that x value to find them
angle UVN = 6x+13 = 6*12+13 = 72+13 = 85 degreesangle NVW = 46 degreesangle UVW = 11+10x = 11+10*12 = 11 + 120 = 131 degreesNote how 85+46 = 131 to show that (angle UVN) + (angle NVW) = angle UVW is a true equation. This confirms our answer for x.
The variable in the term 7m⁴ is raised to the power of
Answer:
Raised to the power of 4
Step-by-step explanation:
Hooppee heelps
Identify whether the expressions are equivalent or not equivalent: 7y – 15 + 2y and 9y - 15
Answer:
Yes, the two expressions are equivalent
The given expression 7y - 15 + 2y and 9y - 15 are equivalent.
What is equivalent expression?
Two algebraic expressions are said to be equivalent if their values obtained by substituting the values of the variables are same, even they look different.
According to the given question.
We have two expressions
[tex]7y - 15 + 2y ...(i)[/tex]
And, [tex]9y - 15 ...(ii)[/tex]
The expression (i) can be written as
[tex]7y - 15 + 2y[/tex]
[tex]=(7y + 2y)-15[/tex] (adding the like terms)
[tex]= 9y -15[/tex]
Hence, the given expression 7y - 15 + 2y and 9y - 15 are equivalent.
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Geometry please help thanks
Answer:
the answer is SSS (side-side-side)
Step-by-step explanation:
since the picture shows red tick marks on each side it's showing you they are all congruent by the sides which is the method SSS (side-side-side)
Thanks for helping if ya did
Answer:
A
Step-by-step explanation:
Answer:
785 m
Step-by-step explanation:
Brainliest, pleeeeaseee??? Thanks I love YOUUUUUU
How many groups of 3/4 are in each of the following quantities?
Answer:
where are the quantities?
V = 5x + 2y
x= 3
y=-4
a) Work out the value of V
b) Expand 3p(p + 5)
c) Solve 4(k - 6) = 20
Answer:
a.7
b.
[tex]3 {p }^{2} + 15p[/tex]
c.k=11
Step-by-step explanation:
a.V=5x + 2y ,x=3,y= -4
V=5(3)+2(-4)
=15+(-8)
=15-8
=7
b.3p(p + 5)
=
[tex]3 {p}^{2} + 15p [/tex]
c.4(k-6)=20
4k-24=20
4k-24+24=20+24
4k=44
4k/4=44/4
k=11
hope it's helpful ❤❤❤❤
THANK YOU.
#
Jamie need to earn more than $4,000 to pa his monthly bills. he earns a monthly salary of $2,500 plus an extra $75 for every electronic device he sells. Write an inequality to determine the minimum number of electronic devices Jamie needs to sell each month in order to have enough money to pay his monthly bills. Let d represent the number of electronic devices Jamie needs to sell each month. Help plz.
Answer:
hi
Step-by-step explanation:
hi
solve x·x·y·y·y = _____
Step-by-step explanation:
there are 2x and 3y so since it is multiplication you can directly write like below
2x•3y
6xy
Answer:
2x 3y
Step-by-step explanation:
I don't think that's an actual equation, but I'm sure it would just be this
What is the image of (8,-6) after a reflection over the line y = x?
Answer:
Step-by-step explanation:
Interchange x and y: (-6, 8) is the image of (8, -6) after a reflection over y = x.
The image of (8,-6) after a reflection over the line y=x is (-6, 8).
The given coordinate point is (8, -6).
What is a reflection over the line y=x?Reflect over the y = x, when you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed).
The image of (8,-6) after a reflection over the line y=x is
Reflecting in the line y = x interchanges the x and y coordinates. So, the image of (8, -6) is (-6, 8).
Therefore, the image of (8,-6) after a reflection over the line y=x is (-6, 8).
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what is the answer i need help
Answer:
27
Step-by-step explanation:
add 5+5+7+6+4
Which of the following is equal to 2.2 × 8?
A.
(2 × 8) + (0.2 × 2)
B.
(2 × 8) × (0.2 × 8)
C.
(2 × 8) + (0.2 × 8)
D.
(2 + 8) × (0.2 + 8)
Answer: C
Step-by-step explanation: (2 × 8) + (0.2 × 8) because the 2.2 is together you will have to add those and multiply each 2 by 8.
While testing 10 light bulbs, Harvey finds that 6 of them do not light. Which best describes the fraction of light bulbs that are working? A. number of light bulbs that are not working/total number of light bulbs B. number of light bulbs that are working/number of light bulbs not working C. number of light bulbs that are not working/number of light bulbs working D. number of light bulbs that are working/total number of light bulbs
Answer:
4/10
Step-by-step explanation:
There is 10 of them, and 6 are not working. So, it is 4/10
Complete the input-output table for linear equation y=8x+7
What is the solution to the following equation? -6(x-2) + 3x = -3(x + 3) + 21
(This is not multiple choice and I need the answer in number form, with explanation please) :)
9514 1404 393
Answer:
no solution
Step-by-step explanation:
Simplifying the given equation, you have ...
-6(x -2) +3x = -3(x +3) +21 . . . . . given
-6x +12 +3x = -3x -9 +21 . . . . . . eliminate parentheses
-3x +12 = -3x +13 . . . . . . . . . . . . collect terms
0 = 1 . . . . . . . . . . . . . add (3x-12) to both sides
There is no value of x that will make this true.
The equation has NO SOLUTION.