The mistake is on the second line of her work.
She wrote -2x + 4 when it should have been -2x -4 because she multiplied -2 by 2 the 4 would be negative: -2 x 2 = -4
Then adding 4 to the 7, x would be 11
Answer: She’s wrong because on the second line, she should’ve put -2x-4 instead of -2x+4 . X equals 11 because if you add 4 to 7 that’s what you’ll get ,
Step-by-step explanation:
What is the y-intercept (b) of the line? (Use frame 5 in Jamboard to answer this question) please help!! thank you!!
vivian is going to do some yard work, but she needs to leave her house at 2:00 to go to a football game. She is going to mow the lawn for 1 hour and 15 minutes, trim some bushes for 40 minutes, and put down some mulch for 25 minutes, She will also need 30 minutes to shower and get dressed. What time should she start the work so that she will be ready at 2:00?
Answer:
11:10
Step-by-step explanation:
1h15m + 40m + 25m + 30m = 2h50m
She'd need to start 2h50m before 2:00, which would be 11:10 I think
Find the formula for this sequence: 12,36,108
Answer:
Every number is being multipled by 3. 12 times 3 = 36. 36 times 3 = 108. 108 times 3 = 324
Step-by-step explanation:
Charlie rented a moving truck. He pays for each mile traveled and a rental fee for the truck. The table below shows the amount Charlie paid
Answer:
20
Step-by-step explanation:
Name two transformations and a composite transformation that will produce the image.
Answer:
Translation. The translation transformation shifts a node from one place to another along one of the axes relative to its initial position. ...
Rotation. The rotation transformation moves the node around a specified pivot point of the scene. ...
Step-by-step explanation:
Answer:
Translation and rotation.
Thank you and please rate me as brainliest as it will help me to level up
There are 39.37 inches in 1 meter. How many inches are in 8 · 104 meters?
Step-by-step explanation:
[tex]1meter = 39.37inches \\ 8.104meters = (39.37 \times 8.104)inches \\ = 319.05448inches[/tex]
There are [tex]3.1496\cdot 10^6[/tex] inches in [tex]8\cdot 10^4[/tex] meter.
Important information:
There are 39.37 inches in 1 meter.Convert meter to inches:Using the given information,
1 meter = 39.37 inches
Using this conversion, we get
[tex]8\cdot 10^4[/tex] meter = [tex]39.37\times (8\cdot 10^4)[/tex] inches
[tex]8\cdot 10^4[/tex] meter = [tex]39.37\times 80000[/tex] inches
[tex]8\cdot 10^4[/tex] meter = [tex]3149600[/tex] inches
[tex]8\cdot 10^4[/tex] meter = [tex]3.1496\cdot 10^6[/tex] inches
Therefore, there are [tex]3.1496\cdot 10^6[/tex] inches in [tex]8\cdot 10^4[/tex] meter.
Find out more about 'Convert meter to inches' here:
https://brainly.com/question/2284603
What is the solution to the equation 1/2 x + 3 = 2/3 x + 1
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[tex] \frac{1}{2} x + 3 = \frac{2}{3} x + 1 \\ [/tex]
Subtract sides 3
[tex] \frac{1}{2} x + 3 - 3 = \frac{2}{3} x + 1 - 3 \\ [/tex]
[tex] \frac{1}{2} x = \frac{2}{3} x - 2 \\ [/tex]
Multiply sides by 6
[tex]6 \times \frac{1}{2} x = 6 \times \frac{2}{3} x + 6 \times ( - 2) \\ [/tex]
[tex]3x = 4x - 12[/tex]
Subtract sides 4x
[tex] - 4x + 3x = - 4x + 4x - 12[/tex]
[tex] - x = - 12[/tex]
Negatives simplifies
[tex]x = 12[/tex]
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CHECK :
[tex] \frac{1}{2} (12) + 3 = \frac{2}{3} (12) + 1 \\ [/tex]
[tex]6 + 3 = 8 + 1[/tex]
[tex]9 = 9[/tex]
Thus the solution is correct .
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Angela’s car leaked 6 ounces of oil in 9 days what is the unit rate of the oil leak ??
angelas car leaked=6ounces
angeales car leaked in 9days = 6×9=54
Olivia wants to cut off 3 3/4inches from a piece of string. She has already cut off
2 9/16 inches from the piece of string. How much more string should she cut off?
Answer:
1 3/16 inches
Step-by-step explanation:
3 3/4 = (3+12) / 4
2 9/16 = ( 9+ 32) / 16
15 / 4 - 41/ 16 make the denominators equal
15 × 4 / 4×4 - 41/ 16
= 60/16 - 41/16
= 19/16 convert it to Fractional number
= 16 + 3 / 16 = 1 3/16
Which statements accurately describe this equation?
Check all that apply.
Answer:
The second and the last one
Step-by-step explanation:
There is no solution to the problem, meaning that nothing you plug in will make the equation equal to each other
Answer:
any input value for the variable will generate a true equation
Step-by-step explanation:
cuz the last answer will be 0x = 35
so it does not matter what value x hold cuz the answer will stay the same
Jenn's phone has a fully charged battery. With normal usage, he phone will last 16 hours. How long will her battery last if it only charged 30%?
Can you show the work please, thank you!
The correct answer is 4.8 hours
Explanation:
This mathematical problem can be solved by using the rule of three, which involves finding an unknown value by using three related values. The process is shown below:
1. It is known a fully charged battery (100% battery) lasts 16 hours. This can be represented as 100 = 16. But it is not know how much a 30% battery last; this can be represented as 30 = x.
2. Write all the values
100 = 16
30 = x
3. Cross multiply to create an equation and solve the equation
100 x = 48
x = 480 / 100
x = 4.8
i got 15 points out of 20 what is my grade
Answer:
75% (Letter grade = C)
Step-by-step explanation:
15 ÷ 20 = 0.75Multiply by 100: 0.75 × 100 = 75So, your grade was a 75% (letter grade = C)Answer:
75%
Step-by-step explanation:
We need to find out what your grade is.
Since we know that you got 15 out of 20 points we need to find the Greatest Common Factor of these two numbers.
1. [tex]5\left \{ {{15 / 5} \atop {20 / 5 }} \right}} = \frac{3}{4}[/tex]
Now we need to turn this fraction into a decimal.
In order to do that we need to divide our 3 by our 4.
2. [tex]\frac{3}{4} = .75[/tex]
Finally, we need to turn this decimal into a percentage.
In order to do this we must multiply our decimal by 100.
3. .75 * 100 = 75%
Feel free to give brainliest.
Have a great day!
Math plz help
Geometry
Answer:
Okay
Step-by-step explanation:
Since it's a parallelogram, the adjacent angles on the same side is complimentary. Meaning they add up to get 180°.
So,
12x° + 8x° = 180°
20x°= 180°
x°= 180/20
x°= 9°
Hope you understand. Thank you
solve for x (19×-18) (7×+1) (10×-9)
Answer:
use a calculator and thank me lator
Step-by-step explanation:
that rhymed
Which graph is a possible graph of the points (5, -3) and
(-5, -3)?
Answer:
y=-3
I hope this is good enough:
If Big Bun won 5 out of 25 matches, what percent did he win?
Answer:
5/25*100=
1/5*100=100+5=20
12 1/2 gal= qt
can you help me plsssssss
Answer:
50 qrts
Step-by-step explanation:
12.5 gal = 4x qrts
12.5 * 4 = 50
in 1/2 a gal. there is 2qt.
so that makes a gal = 4qt.
12 x 4 =48qt plus 2qt equals 50 qt
In one school, 5/6 of the sixth graders take a foreign language. Of these students, 2/5 take French. What fraction of the sixth graders take French? If there are 150 sixth grade students, how many take French?
My sister needs help before the end of the day please help me.
The options for the 2nd question are 3, 50, 100, 150, and 200.
Answer:
[tex]50[/tex]
Step-by-step explanation:
The prorportion of students that take a foreign language is [tex]\dfrac{5}{6}[/tex]
The total number of students is 150
Number of students who take a foreign language
[tex]\dfrac{5}{6}\times 150=125[/tex]
Out of these students [tex]\dfrac{2}{5}[/tex] portion of students take French.
Number of students that take French
[tex]\dfrac{2}{5}\times 125=50[/tex]
So, number of students that take French is [tex]50[/tex].
Katrina stacked 2 blocks on top of each other. The height of the first block
was 3 2/3 inches. The height of the second block was 2 /2 inches. What was
the height of the stack of | blocks? Must convert to mixed number
Answer:3 2/3
Step-by-step explanation:3 2/3 + 2/2=3 2/3
What value makes of x makes the equation 1.25(4x-10)=7.5 true
A. 3.5
B -1
C -0.5
D 4
Write and equation for this table use y=mx+b PLA ANSWER HELP FAST
Answer:
y=2/3x+19/3
Step-by-step explanation:
plug into y-y prime = m (x-x prime)
A number cube has a volume of 27 mm3. What is the length of one edge of the cube
PLZZZZZ HELP ME WHOEVER ANSWERS FIRST I WILL MAKE BRAINLIESTTTT
Answer:
2
Step-by-step explanation:
Answer:
Step-by-step explanation:
ok i want brainly ut idk the answer jk the 1st one is 60 and idk the rest
PLEASE HELP QUICK
What is the simplified expression for the expression below?
–1(2x + 3) – 2(x – 1)
–4x + 1
–4x – 2
–4x + 2
–4x – 1
Answer:
-4x - 1
Step-by-step explanation:
i used a calculator and got that
If A in 3 days can do as much work as B in 4 days and B in 5 days can
do as much as C in 6 days, how long will required to do a piece of work
which can do in 167 days?
Answer:
Z
Step-by-step explanation:
167 days it can be Z maybe
prove that sin²∅+cos²∅=1 ?
Step-by-step explanation:
Let ABC be a right angled triangle where there's a right angle in B . Let the measure of the angle BAC be ∅. So,
[tex] \sin(∅) = \frac{BC}{AC} [/tex]
[tex] = > {\sin}^{2}∅ = \frac{ {BC}^{2} }{ {AC}^{2} } [/tex]
Also,
[tex] \cos(∅) = \frac{AB}{AC} [/tex]
[tex] = > { \cos}^{2}∅ = \frac{ {AB}^{2} }{ {AC}^{2} } [/tex]
Now adding the values of sin^2∅& cos^2∅,
[tex] { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {BC}^{2} }{ {AC}^{2} } + \frac{ {AB}^{2} }{ {AC}^{2} } [/tex]
[tex] = > { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {AB}^{2} + {BC}^{2} }{ {AC}^{2} } [/tex]
But we know that
[tex] {AC}^{2} = {AB}^{2} + {BC}^{2} [/tex] by applying Pythagorean Theorem
So ,
[tex] = > { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {AC}^{2} }{ {AC}^{2} } = 1[/tex]
Write the standard form equation of the line through the given points. through (0.-4) and (-3,-2)
Answer:
The standard form of equation of the line through the given points. through (0.-4) and (-3,-2) is [tex]\frac{2}{3}x+y=-4[/tex]
Step-by-step explanation:
The standard form of equation is [tex]Ax+By=C[/tex]
Finding slope
Using the given points (0,-4) and (-3,-2) we can find slope using formula:[tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]Slope=\frac{-2-(-4)}{-3-(0)}\\Slope=\frac{-2+4}{-3} \\Slope=-\frac{2}{3}[/tex]
Finding y-intercept
Using point (0,4) and Slope=-2/3 we can find y-intercept
[tex]y=mx+b\\-4=-\frac{2}{3}(0)+b\\-4=0+b\\b=-4[/tex]
The slope intercept form of the line through the given points. through (0.-4) and (-3,-2) having slope =-2/3 and b=-4 will be:
[tex]y=mx+b\\y=-\frac{2}{3}x-4[/tex]
Now, standard form of equation will be: [tex]\frac{2}{3}x+y=-4[/tex]
So, The standard form of equation of the line through the given points. through (0.-4) and (-3,-2) is [tex]\frac{2}{3}x+y=-4[/tex]
what expression is same as (a+a+a) (b+b)
HELPPP PLEASEEE !!! John draws AABD, with CD as the perpendicular bisector of AB such that AACD and ABCD are congruent to each other.
DO
Which statement can John use this figure to prove?
Every isosceles triangle is a right triangle.
The base angles of any triangle are congruent.
The points on the perpendicular bisector of a side of a triangle are equidistant from all of the vertices of the triangle.
The points on the perpendicular bisector of a side of a triangle are equidistant from the vertices of the side it bisects.
Answer:
The points on the perpendicular bisector of a side of a triangle are equidistant from the vertices of the side it bisects.
Step-by-step explanation:
It is the last option. The perpendicular bisector theorem states that if a point lies on the bisector of a segment it is equidistant from the endpoints.
Meaning
If a perpendicular bisector is a line of the side of the triangle , it bisects the sides forming two right angles .
The first three choices are incorrect because
1) the figure shows a triangle bisected into two triangles and option 1 tells about 1 isosceles triangle.
2) The base angles of any triangle can be different or same .
3) the three perpendicular bisectors meet at a point called the circumeter. We have 1 perpendicual bisector which is dividing the triangle into two equal triangles.
The statement that John can use the figure given to prove is that: D. The points on the perpendicular bisector (CD) of a side (AB) of a triangle (triangle ADB) are equidistant from the vertices (<A and <B) of the side it bisects.
Recall:
The perpendicular bisector theorem states that any point on a perpendicular bisector of the side of a triangle is equidistant from the two endpoints or vertices of the side the perpendicular bisector bisects.From the triangle in the image drawn by John, it means that since CD a perpendicular bisector of side AB, it means that the distance from point D to vertex A and the distance from point D to vertex B are equal.
Therefore, the statement that John can use the figure given to prove is that: D. The points on the perpendicular bisector (CD) of a side (AB) of a triangle (triangle ADB) are equidistant from the vertices (<A and <B) of the side it bisects.Learn more here:
https://brainly.com/question/4137998
PLS HELP!!! Triangle TUV is similar to triangle XYZ. Which of the following statements is true?
A.
The slope of UV is equal to the slope of XY.
B.
The slope of VT is equal to the slope of ZX.
C.
The slope of TU is equal to the slope of YZ.
D.
The slope of UV is equal to the slope of ZX.
Answer:
d i thing or A many.....ccr3vryn my
Answer:
please send a proper pic