Answer:
3.
Step-by-step explanation:
3x + 4y = 4..........1
2x + y = 1.............2 Multiply this by 4:
8x + 4y = 4 Subtract this from equation 1:
-5x = 0
x = 0.
So substituting in equation 2:
2(0) + y = 1
y = 1.
Therefore 2x + 3y = 2(0) + 3(1) = 3.
Surface Area of a Triangular Prism
If the net is assembled, which of the following
polyhedra would it make?
А
B
A
10
10
10
8
10
С
D
C С
D
5
10
10
10
10
10
8
Answer:
B
Step-by-step explanation:
took test
PLZZZ SEND HELPPP ANSWER QUICKK
Answer:
The answer is C 2^3
hope this helps!!!
Answer:
2^3
Step-by-step explanation:
Ok, let's jump right in!
Multiply 2^6 by 2^−3 by adding the exponents.
Use the power rule a^m a^n = a^m+n to combine exponents. Therefore, we get:
2^ 6-3
Subtract 3 from 6.
2^3
TIP: For next time remember that when you have to multiply exponents you that have the same base number you really just have to add the exponents.
can i have points please?
Answer:
You are giving points wow thx.
And yes just answer questions for points
Answer:
I SMELL POINTS
Step-by-step explanation:
YUM
7/10x-2=2/5x+1
I need what x equals
Answer:
x= 10
Step-by-step explanation:
I used a calculator. U can factor it to get an answer.
Need help! Due today
Answer: x=-7
Step-by-step explanation:
180=76+41+x+70
180=187+x
180-187=x
-7=x
Is it possible to have a rotation that starts and end in the same quadrant?
Yes and no. It depends on the situation and how you're asking
What are the coordinates of R’S’T’ if the figure is reflected over the x-axis and translated down two units?
Answer:
Is there a picture to this?
simplify: -1.5(-3.6+2)
1) 7.4
2) -3.1
3)-8.4
4)2.4
Answer:
4)2.4
Step-by-step explanation:
-1.5 ( -3.6 + 2 )
To solve this problem, we apply PEMDAS.
This is the order of operation for mathematical problems.
P Parentheses
E Exponent
M Multiplication
D Division
A Addition
S Subtraction
-1.5 ( -3.6 + 2 )
Do the problem in the parentheses first,
= -1.5 x (-1.6)
= 2.4
In the polynomial shown in the graph below, are there any places that could be described as either a local minimum or local maximum? Neither? Both?
Answer:
Local Min and Local Max
Step-by-step explanation:
Since our end behavior of our graph is goes on to infinity and negative infinity, we know that we will not have an absolute min or max. However, we will have relative/local min and max.
The local min and max are mins and maxes relative to the surrounding points. We see that our local min would happen around x ≈ 0.75 and our local max will happen at x ≈ -1.9.
The length of cell A is 8x10 to the power of negavtive 6 m. The length of cell B is0.0000004 m. What is the ratio of cell A's length to cell B's length? Use pencil and paper. Is it easier to find the ratio when the numbers are expressed in scientific notation or in standard form? Explain your reasoning.
Answer:
Ratio of length of cell A to cell B is 20 : 1
Step-by-step explanation:
Length of cell A = [tex]8\times 10^{-6}[/tex] m
Length of cell B = 0.0000004 m
Convert the length of cell B into scientific notation.
Length of cell B = [tex]4.0\times 10^{-7}[/tex]
Now the ratio of the lengths of cell A and cell B = [tex]\frac{8.0\times 10^{-6}}{4.0\times 10^{-7}}[/tex]
= [tex]2\times 10^{7-6}[/tex]
= 20
Therefore, ratio of length of cell A to cell B is 20 : 1
someone helpp
solve the following system of equation
Help needed ASAP will give you BRAINLIEST and 5 stars RATE
Answer:
Illustration (A)
Step-by-step explanation:
An Illustration a book or newspaper or something else that gives a brief explanation on a topic which helps us understand. Like a print feature, I could draw and make a article on a Print feature.
» How many millimeters are in 9.4 centimeters?
Answer:
9.4 centimeters = 94 millimeters
4 to the power of 2 multiplied by 2 to tthe power of 4 =
Answer:
256
Step-by-step explanation:
brainlist?
is the angle corresponding, alternate interior, alternate exterior or consecutive interior
Work out the size of angle x
Answer:
Let's name the angle right close to 51 as c.
c = 180°-51° since angles on a straight line is equal to 180°.
so c= 129°
so x = 129° since it corresponds to c
Answer:
Step-by-step explanation:
Notice that the line that the variable x is on is equal to 180 degrees. Because the angle that it is next to is equal to 51 degrees, you subtract 180 from 51:
180-51=129
The final answer to this problem is 129 degrees.
Logan has two aquariums. One aquarium contains 1.3 cubic feet of water and the other contains 1.9 cubic feet of water. The water in the larger aquarium weighs 37.44 pounds more than the water in the smaller aquarium. Write an equation with a variable on both sides to represent the situation. Then find the weight of 1 cubic foot of water.
Answer:
62.4
Step-by-step explanation:
1. 1.3x+37.44=1.9x
2. 1.3x+37.44-1.3x=1.9x-1.3x
0.6x=37.44
3. x=37.44/0.6=62.4
The weight of 1 cubic foot of water is 62.4 lb.
Representing Equation with variable on both sides
Let 'x' pounds be the weight of 1 cubic foot of water.
We know one aquarium contains 1.3 cubic feet of water. So, the weight of 1.3 cubic feet of water = 1.3x
The other aquarium contains 1.9 cubic feet of water. So, the weight of 1.9 cubic feet of water = 1.9x
It is given in the question that the water in the larger aquarium weighs 37.44 pounds more than the water in the smaller aquarium.
The equation would be
1.9x = 1.3x + 37.44
The above equation quality the condition of variable on both sides.
To find out the weight of 1 cubic foot of water, we will solve the above equation to find the value of x.
1.9x = 1.3x + 37.44
1.9x - 1.3x = 37.44
0.6x = 37.44
x = 37.44/0.6
x = 62.4
So, the weight of 1 cubic foot of water is 62.4 lb.
To know more about variable equations click the link below
https://brainly.com/question/28771209
#SPJ2
simplify
(tan^2 t + 1) / (1+ cot^2 t)
Answer:
answer 37 udurururururururururururjejeiriririr
Tarah collected 254 cans of food for the food drive. Ana collected 421 cans of food for the food drive. The
1
girls decided to combine their cans of food and donate to the local food bank. They donated 60% of the
remaining cans of food to the homeless shelter. How many cans of food do they have left over to
donate?
Answer:
270 is the awnser
What is an equation of the line that passes through the point
(-6, -2) and is parallel to the line 3x – 2y = 2?
Answer: y=3/2x+7
Step-by-step explanation:
To find the equation of the line that passes through the given point, let's first convert the given equation to slope-intercept form.
3x-2y=2 [subtract both sides by 3x]
-2y=-3x+2 [divide both sides by -2]
y=3/2x-1
Now that we have the equation in slope-intercept form, we know that the slope must stay the same because parallel lines NEVER touch. All we have to do is plug in the given point to find the y-intercept.
-2=3/2(-6)+b [multiply]
-2=-9+b [add both sides by 9]
b=7
Now, we know that the parallel equation is y=3/2x+7.
How would you get the variable alone in the equation s ÷ 10 = 12? A. Multiply both sides of the equation by 10. B. Multiply both sides of the equation by 12. C. Divide both sides of the equation by 10. D. Divide both sides of the equation by 12.
A. Multiply both sides of the equation by 10.
SInce 10 is being divided with s, weneed to isolate it. To do this multiply 10 on both sides.
Austin is building a miniature replica of the empire state building. the actual empire state building is 1,423 feet tall and 6,000 feet wide. if Astin's replica has a width of 60 centimeters, what is the hight of his empire state building replica rounded to the nearest centimeter?
60/6000 = x/1423
100/1 = 1423/x
100x = 1423
x = 14.23 --> About 14 cm
how many solutions does
-8x-3x=-11x
have?
Infinite solutions
Step-by-step explanation:Hi there !
- 8x - 3x = - 11x
- 11x = - 11x
Infinite solutions
Good luck !
What two integers is square root 50between
The best approximation for sqrt 10 is
25 3.1 5 10”
Answer:
3.1
Step-by-step explanation:
Places A and B are 100km apart from each other on a highway. A car starts from A and another from B at the same time. If they move in the same direction, they meet in 10 hours and if they move in opposite directions, they meet in 1 hour and 40 minutes. Find the speeds of the cars.
Answer:
Speed of the first car = x = 35km/hr
Speed of the second car = 25km /hr
Step-by-step explanation:
The calculation of speeds of the cars is given below:-
Assume that the speed of the 1st car which is opening from A = x km/hr
and assume the Speed of the 2nd car which is starting from B
= y km/hr
As we know that
Time = Distance ÷ Speed
So, the distance lies between two places i.e. A and B are
80km d = 80 km
1. now when the car moves in the similar direction
So, the corresponding speed of them = (x + y)km/hr
Time = 8hr
d = 80km
[tex]8 = \frac{80}{(x + y)}\\\\x + y = \frac{80}{8}\\\\x + y = 10 ..... (i)[/tex]
2. when two cars moving in the inverse direction,
So, the corressponding speed = (x - y) km / hr
Time = 1 hr 20 minutes
That means
= (1 + 20 ÷ 60) hr
= (80 ÷ 60)
= 4/3 hr
d = 80km
Now
4 ÷ 3 = 80 ÷ (x -y)
x -y = (80 × 3) ÷ 4
x - y = 60 ..... (ii)
Now, we will sum equation 1 and equation 2 we will get
2x = 70
x = 35
now, Put x = 35 in (i) we will get
y = 25
Speed of the first car = x = 35km/hr
Speed of the second car = 25km /hr
2.623 times 10^-5. What’s the answer
Answer:
0.00002623
Step-by-step explanation:
You simply move 5 decimal places to the left.
I need help
3x - 9 = -33 x = -33
-14
-8
-16
-9
none of the above
Answer:
x = -8
Step-by-step explanation:
3x - 9= -33
+9=-33+9
3x = -24
3 3
x = -8
the first to answer correctly gets brainliest
Answer: 7.5
Step-by-step explanation:
anyone know this !! I'll brainlist u
Answer:
Step-by-step explanation:
Number of days = y
Number of weeks = x
1 week = 7days
Formula = 7x = y
13 weeks = 7(13) = 91 days
29 weeks = 7(29) = 203 days
7.5 weeks = 7(7.5) = 52.5 days
