Answers
Answer:
D is correct
Step-by-step explanation:
i did it
Related Questions
pls help with these math problems
Answers
Answer:
Step-by-step explanation:
1)
First we add what we know for y into the second equation.
5x - 4(x +2)= -3
From there, we simplify it
5x-4x-8= -3
x-8=-3
Now we get the x on its own
x=5
and now we add x=5 into the first equation that we had and simplify to find y
y=5+2
y=7
So the answer is x=5, y=7 or (5,7)
2)
For this one we do the same thing as with 1.
Add what we know for y (bottom equation) to the top equation
3x-8(x-8)=24
Now we simplify
3x-8x+64=24
-5x+64=24
And now solve for X
-5x=-40
x=8
And then substitute x=8 to find y
y=8=8
y=0
So the answer is x=8, y=0 or (8,0)
What is the area of the parallelogram?
Answers
Answer:
no se
tep-by-step explanation:
Formula to find area of a parallelogram is BxH.
Area= BxH
Area = (16)x(5)
Area = 80 cm2
The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence?
A) 14/13
B) 25/7
C) 4
Answers
Answer:
C) 4Step-by-step explanation:
The nth term of arithmetic sequence is [tex]a_n=a_1+d(n-1)[/tex]
So:
[tex]a_{15}=a_1+d(15-1)\\\\53=-3+14d\\\\56=14d\\\\d=\dfrac{56}{14}=4[/tex]
4. What is the half-life of the radioactive isotope with amount A, whose rate of decay in t hours is shown in the graph below?
(0,40)
(20,15)
Answers
Answer:
15, 25
Step-by-step explanation:
Answer:The half life is the time taken for the amount of a substance to become half of its original value. If we take the initial value to be 30 on the y-axis, the half of 30 is 15. We check the time at which the substance has reduced to 15 atoms and this is about 40 seconds. The answer is C.
Step-by-step explanation:
The formula for finding the volume of a cone is V=
nur?n. The radius of a cone is 5 cm and the height of a cone is 10
cm. What is the approximate volume of the cone?
Answers
Answer:
261.8 cm^3
Step-by-step explanation:
1) find the base area
base area = radius^2 x pi = 5^2 x pi = 25 x pi = 78,539816 cm^2
2) find the volume
V = (base area x height)/3 = (78.539816 x 10)/3 = 785.3/3 = 261.8 cm^3
If the square root of the length of the hypotenuse of a right triangle is 2 units, what is the sum of the squares of the length of the two other sides?
Whoever answers first will get all my 38 points!!
Answers
sqrt (hyp) = 2
hyp = 4
hyp^2 = 16 then from above a^2 + b^2 = 16
On Tuesday the temperature is 1 ºC. By Wednesday it has dropped to –2 ºC. The temperature drops by twice as much from Wednesday to Thursday. What is the temperature on Thursday?
Answers
Answer: [tex]-8^{\circ}C[/tex]
Step-by-step explanation:
Given
The temperature on Tuesday is [tex]1^{\circ}C[/tex]
Temperature drops to [tex]-2^{\circ}C[/tex] on Wednesday
Net drop in temperature [tex]1-(-2)=3^{\circ}C[/tex]
The temperature drops twice from Wednesday to Thursday
[tex]\Delta T=2\times 3=6^{\circ}C[/tex]
Temperature on Thursday
[tex]\Rightarrow -2-6=-8^{\circ}C[/tex]
Help me!! no links or i REPORT, I will do brainliest if there is more than one answer and if you explain it
Answers
Answer: 1/2
Step-by-step explanation: There is only heads and tails on a coin so if you flip it you have a 50 50 chance of it landing on tails because there are only two outcomes.
Factor the expression: 12xy+15xyz-3xyz
Answers
Answer: 12xy + 12xyz
Step-by-step explanation:
15xyz - 3xyz = 12xyz + 12xy
36.5% of $40 is what number?
Answers
Answer:
Answer: 91.25%
Step-by-step explanation:
Convert fraction (ratio) 36.5
Answer:
$14.6
Step-by-step explanation:
36.5% of 40 = 0.365 × 40 = 14.6
What is the surface area
Please help quick
no links please.
Answers
120Cm
Sierra has plotted two vertices of a rectangle at (3,2) and (8,2). What is the length of the sides of the rectangle
Answers
Answer:
5units
Step-by-step explanation:
Given the two vertices of a rectangle at (3,2) and (8,2). We are to calculate the distance between the two points.
Using the formula
D = √(x2-x1)²+(y2-y1)²
D = √(2-2)²+(8-3)²
D = √0+5²
D = √25
D = 5
Hence the length of the side of the rectangle is 5units
A square picture has a 1-inch frame around it. If the area of the frame alone is 80 in.2, what is the area of the
picture?
Answers
Resuelve la siguiente operacion con su proceso: 3 x( 2 + 4 x 3 ) - 2 x( 3 x 2 - 2 x 2 )+ 5 - 2= Es urgente!
Answers
Answer:
41
Step-by-step explanation:
Usando BODMAS, entonces que tenemos
(2 + 4 * 3) =
(2 + 12) =
14
Con el segundo uno, tenemos
(3 * 2 - 2 * 2). Con esto, dices que
(3 * 2) - (2 * 2) =
6 - 4 =
2
Y ahora, decimos que
3 * (14) - 2(2) + 5 - 2 =
42 - 4 + 3 =
42 - 1 = 41
Nos respuesta a la pregunta es 41. Espero que tú entiendas
What is the value of x in the figure below
Answers
Answer:
just delete this
Step-by-step explanation:
Which of the following statements about this is true??
Answers
Answer:
lines tx and vs are perpendicular
Answer:
I think it is the 2 one don't blame me if I am wrong
Item 4
Which statement is true?
A pound is 8 times as heavy as an ounce.
A pound is 10 times as heavy as an ounce.
A pound is 12 times as heavy as an ounce.
A pound is 16 times as heavy as an ounce.
Answers
HELP ON MATH PLS HELPPPPPPpppp
Answers
Answer:
The answer is 14
Step-by-step explanation:
nOiCe
Bella surveyed the first 15 students in the lunch line.
Is this sample of the students in the school likely to be representative?
yes
no
Answers
Answer:
No
Step-by-step explanation:
Only people in the lunch line got surveyed, that on it's own is biased.
Only 15 people out of the entire school.
Only the first people got surveyed.
plz write it in radical form no links and no radom leters plz
Answers
Help me out please?.
Answers
Explanation
Rotation, translation and reflection moves the shape, resulting in a congruent shape but in a different position. Dilation changes the length/width of the shape. The shape can be similar, but not congruent.
Express y in terms of x
Answers
Answer:
y = 3x
Step-by-step explanation:
to get y we multiply x by 3 so we have that y = 3x.
Explanation:
Plug in for each variable.
(2, 6): 6 = 3(2) TRUE
(4, 12): 12 = 3(4) TRUE
(6, 18): 18 = 3(6) TRUE
(Also, I would love to get brainliest!)
help me ;-;(with image)
Answers
Answer:
12
Step-by-step explanation:
A : B
1 : 3
Since we know that B is 3 times of A and A is 4...
1 unit = 4
3 units = 4 x 3 = 12
Use the distributive property to expand (simplify) 12(a-5)
Answers
Answer:
12a-60
Step-by-step explanation:
12(a-5)
=12a-12*5
Multiply 12 *5=60
=12a-60
Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!
HOPE THIS HELPED!!!
Answer:
[tex]\huge\boxed{\boxed{12a-60}}[/tex]
Step-by-step explanation:
Hello.
The Distributive Property states that
a(b+c)=ab+ac
Where
a, b, and c can be either constants or variables
we distribute a by multiplying it times b and c, and simplify if necessary.
In this case, we should distribute 12:
12(a-5)
12 times a and 12 times (-5):
12a-60
And we're done!
I hope it helps & have an outstanding day!
~ST2710 :)
A bag contains 8 red pens, 7 blue pens, and 14 black pens. Denato wants to pull a blue pen from the bag. What is the sample space for this experiment?
Answers
Answer:
The sample space is 29........
Write the phrase as an expression. Then evaluate the expression when y = 12. the difference of a number y and 9 The expression is The value of the expression is
Answers
Answer:
12-9 i think
Step-by-step explanation:
Because it says the difference if a number y and 9. If y equals 12 then shouldn't it be 12-9?
What does civic participation include? Check all that apply. cleaning up street litter helping neighbors in trouble paying all taxes on time helping communities in trouble testifying as a witness in court
Answers
Answer:
i think it is 1,2,3
Step-by-step explanation:
sorry if im wrong :(
Answer:
ABC
Step-by-step explanation:
edge 2021
please correct me if wrong
You have $5.60 to buy avocados for a guacamole recipe. Avocados cost $1.40 each.
Answers
Answer:
You could buy 4 avacodos with how much money you have :)
You can buy 4 avocados
Please help i'm not doing good in math i will give you the crown
Answers
Answer:
B
Step-by-step explanation:
The format for quadrant 2 would be (-,+) and answer choice be fits that because it is(-3,2)
The temperature drops to a rate of five degrees per hour. Be d the number of degrees that lowers the temperature. Be the number of hours you spend. What is the dependent variable?
Answers
Answer:
d, the number of degrees that the temperature was lowered by
Step-by-step explanation:
The dependent variable in this scenario would be d, the number of degrees that the temperature was lowered by. This is because the value of this variable depends on the actual amount of hours that have passed by. Therefore, depending on the number of hours, the value of d could be completely different. The variable h for the number of hours does not depend on any other variable in the equation and has its own value, but since d depends on h then it would be the dependent variable in this scenario.