x/3=-7
find the variable
Answer:
x=−21
Step-by-step explanation:
Answer: x=-21
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
1 /3 x =−7
Step 2: Multiply both sides by 3.
3*( 1/3 x)=(3)*(−7)
x=−21
Trombonium has a half-life of 4200 years. How long will it take an object
composed of Trombonium to decay to 10% of its original mass
Answer:
420 years
Step-by-step explanation:
help i didnt learn anything the method is distance
Answer:
10 units
Step-by-step explanation:
Of course you have to graph the two points to find out the answer.
Then you count the units or squares to find out how far they are.
So it was basically 6 units to the right and 4 units up :)
Hope this helped plz mark brainliest :))
Given that ABCD is a parallelogram with diagonals intersecting at M. Segment PQ is drawn such that P lies on AB and Q lies on DC and it passes through M. Prove that PM is congruent to QM.
Answer:
we thus have enough informnation to prove that the two triangles are congruent. Because of thism, one side of the triangles, Pm which is the congruent side to that of PQ must be equal as well and
PM = QM
Step-by-step explanation:
because it's a parrallelogram, Ad = BC and AB = DC.
P passes through both AB and DC on a diagonal, angles created by P have oppoiste exterior angles of eachother.
the diagonals of AC create congruent angles at DMC and AMB and because P is cutting through them, the angles P cuts at DMQ and QMC are equal to that of AMP and PMB
that being said, we now see that the angles of APM triangle and AMC triangol are equal and because the diagonal of BD is is being cut by AC, which AD is parralel to BC and AB to Dc, we know now that lines AM and MC are congruent
we thus have enough informnation to prove that the two triangles are congruent. Because of thism, one side of the triangles, Pm which is the congruent side to that of PQ must be equal as well and
thus PM = QM
The alternate interior angles formed by the parallel sides and a common
transversal are equal, such that ΔPBM and ΔQDM are congruent.
Correct response;
PM is congruent to QM by CPCTCHow is the congruency of the segments determined?The two column proof is presented as follows;
Statement [tex]{}[/tex] Reason
ABCD is a parallelogram [tex]{}[/tex] Given
AC and DB are diagonals of ABCD [tex]{}[/tex] Given[tex]{}[/tex]
M is the point of intersection of the diagonals [tex]{}[/tex] Given
MB ≅ DM, and AM ≅ CM;[tex]{}[/tex] Properties of the diagonals of a parallelogram
∠PMB ≅ ∠DMQ [tex]{}[/tex] Vertical angles theorem
∠PBM ≅ ∠QDM [tex]{}[/tex] Alternate interior angles theorem
ΔPBM ≅ ΔQDM [tex]{}[/tex] Angle-Side-Angle Congruency post.
PM ≅ QM [tex]{}[/tex] CPCTC
ΔPBM is congruent to ΔQDM by Angle-Side-Angle congruency
postulate, given that they have two angles and an included side that are
congruent.
Therefore;
PM is congruent to QM by Corresponding Parts of Congruent Triangles are Congruent, CPCTC.Learn more about congruency postulates here:
https://brainly.com/question/17003791
Help me need the answer!!!!!
Answer:
Hope that helps
Step-by-step explanation:
b) two pairs that are solutions
x>=-4
x>=-4x<=1
-4<=x<=1
two pairs that are not solutions
-18<x<-13
Expand and simplify (2x + 5)2
Answer: 4x +10
Step-by-step explanation:
you just need to multiply the inside of the brackets by the outside so 2x x 2 = 4x and 5 x 2 = 10
Triangle ABC has Vertices A(1, 2), B(3, 5), and C(4, 3). Using the origin as the center of dilation, Triangle ABC is dilated by a scale factor of 3 to create Triangle A ′ B ′ C ′ . Which statement can be used to justify that Triangle ABC is similar to Triangle A ′ B ′ C ′ ?
Answer:
AA ≅ AA postulate
Step-by-step explanation:
Given
[tex]A=(1,2)[/tex]
[tex]B = (3,5)[/tex]
[tex]C = (4,3)[/tex]
[tex]k = 3[/tex] --- scale factor
Required
Determine which statement that justifies the similarities between ABC and A'B'C'
When ABC is dilated by a scale factor of 3 to form A'B'C', the sides A'B'C are 3 times as large as the sides of ABC.
However, all three angles of both triangles remain the same. This is so, because dilation do not affect angles.
So, a statement that can be used to justify the similarities is: AA ≅ AA
math work please help wioth my math
Answer:
Figure A is scalene and probably obtuse.
Figure B is scalene and right.
Figure C is equilateral and acute.
Figure D is isosceles and right.
Figure E is isosceles and acute.
I am so sorry if I did a few wrong, I'm in Middle-School so I don't know much. I hope I get everything correct!
Answer: Figure A is scalene and probably obtuse.
Figure B is scalene and right.
Figure C is equilateral and acute.
Figure D is isosceles and right.
Figure E is isosceles and acute.
Step-by-step explanation:
These two triangles are congruent. Which side of triangle PQR is the same length as AB?
RP or PR
QR or RQ
PQ or QP
Answer:
QR OR RQ
,,,,,,,,,,,,,,,,,
Find the length of an arc when the radius is 15 feet and the measure of the central angle 135 degrees. Round to nearest hundredth.
Answer:
35.34
Step-by-step explanation:
The formula for arc length is 2rФπ/360
2(15)(135)=4050
4050/360·π=35.34
A carton of milkshake comped with 25% extra free. A normal size carton is 320ml calculate the volume of milkshake in the larger carton. find 25% of 320
Step 1: Our output value is 350.
Step 2: We represent the unknown value with $x$.
Step 3: From step 1 above,$350=100\%$.
Step 4: Similarly, $x=25\%$.
Step 5: This results in a pair of simple equations:
$350=100\%(1)$.
$x=25\%(2)$.
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have
$\frac{350}{x}=\frac{100\%}{25\%}$
Step 7: Again, the reciprocal of both sides gives
$\frac{x}{350}=\frac{25}{100}$
$\⇒x=87.5$
Therefore, $25\%$ of $350$ is $87.5$
Which expresionnis equlavimnt to the expression below
Change the following fractions to Improper Fractions
1. 6 7/8
2. 5 6/9
3. 2 ¾
4. 1 4/5
5.7 2/3
01:44:56
Mustafa’s soccer team is planning a school dance as a fundraiser. The DJ charges $200 and decorations cost $100. The team decides to charge each student $5.00 to attend the dance. If n represents the number of students attending the dance, which equation can be used to find the number of students needed to make $1,500 in profit?
Answer: the equation would be 5n=1,500
Step-by-step explanation:
5 dollars per N (student) they need to make 1,500 so you need to find n
( to find N do 1,500 divided by 5 = 300
A bookstore pays $28 for a copy of a textbook. The bookstore sells the textbook for $42. What is the percent markup on the textbook?
Answer:
50%
Step-by-step explanation:
28×0.50= 14
14+28= 42
#CarryOnLearning
#MarkAsBrainliest
Can someone please answer this
On a hot day, a soccer team drank an
entire 50 gallon cooler of water, and then
drank half as much again.
How much water did they drink?
I’ll give u brainliest if u show how you got the answer :D
Answer:
75 gallons
Step-by-step explanation:
50+(50/2)=
50+25= 75
(1/2 of 50 is 25)
Answer:
75 gallons
Step-by-step explanation:
Soooooo
they drank 50 gallons and then they drank half as much as they just drank
50/2 =25 -to get half of what they just drank
50 + 25 =75 - the original 50 gallons + half of that.
Find the slopes form two points (-1, -2) and (3,-4)
Answer:
m=-1/2
Step-by-step explanation:
use y=mx+b
can someone help me out it would be great if u can explain it.
Answer:
113.1
Step-by-step explanation:
formula for circle is pie X radius^2
ok can you pls answer this
Please help ill mark brainliest ✅✅✅✅
Answer:
i think y=3/4x-4.2
Step-by-step explanation:
HELP ME PLEASEEEEEEE
Answer:
Step-by-step explanation:
cos o = adjacent side /hypothenuse = OQ / PO
Please Help Me I don’t understand
Answer:
The answer is 35 and here is why!
Step-by-step explanation:
It is because, m = 10
So, therefore 3.5m = 3.5*m = 3.5 * 10
Therefore, answer is 35.
Hope this helps.
Find the product (4x - 3y)3
Answer:
12x - 9y
Step-by-step explanation:
According to the distributive property:
3(4x - 3y) =
3*4x - 3*3y =
12x - 9y
Answer:
12x - 9y you can't subtract different variables so multiply by them both by the left over constant and get the expression of 12x - 9y
Step-by-step explanation:
5|x + 11 + 7 = -38
Absolute value equations
h+8g
g=5 and h=4
I am not very quick at these and I need an answer ASAP
please!!
Answer:
44
Step-by-step explanation:
4+8(5)
Multiply 8 by 5
4+40=44
Add 4 to the product (40) to get the final answer of 44
Remember PEMDAS
The distance from Jason's house to school is 0.2 kilometer. What is this distance in meters?
Answer:
200 Meters!
Step-by-step explanation:
Answer:
200 m
Step-by-step explanation:
Distance from Jason's house to school = 0.2 kilometers
Converting into metres
0.2 km = 0.2 * 1000 m = 200 m
Hope it will help :)
-8x=-64
find the variable
Answer:
x=8
Step-by-step explanation:
8x/8 =64/8
x=2 6/2 3
x=2 6-3
x=2 3
x=8
A toy is on sale for $28.50. If the tax rate is 6.25%, what is the total cost of the toy?
Answer:
30.28
Step-by-step explanation:
6.25 percent of 28.50 is 1.7815 1.78 rounded
28.50+1.78=30.28
A cookie recipe has 3 eggs for
every 1 dozen cookies.
How many eggs are in 3 dozen cookies?
Answer:
9 eggs
Step-by-step explanation:
1 dozen = 3 eggs
2 dozens = 6 eggs
3 dozens = 9 eggs