Answer:
3x + 7y = −17
4x − 7y = 10
Add up both sides of 2 equations, then
7x = -7
=> x = 1
=> y =(3 x 1 - 17)/7 = -14/7 = -2
Hope this helps!
:)
Math question down below
Answer:
B. 0.583
Step-by-step explanation:
PLS HELP NEED TO PASS TEST :)))))
Find the surface area of the regular pyramid shown to the nearest whole number. The figure is not drawn to scale.
351 m^2
415 m^2
542 m^2
790 m^2
Help pleaseeeeeeeeeeeeee
Theoretically, on a number cube, each side has an equal chance. There are 6 sides, and 2 is one of the sides, so then you subtract 1/6, which would leave you with 5/6.
D. 5/6
What is the value of x in the equation.
2/3(1/2x+12)=1/2(1/3x+14)-3?
A:-24
B:-6
C:-2/3
D:0
Answer:
A
Step-by-step explanation:
Our equation is:
[tex]\frac{2}{3} *(\frac{1}{2} x+12)=\frac{1}{2} *(\frac{1}{3} x+14)-3[/tex]
Let's first distribute the left side. When distributing, we essentially find the sum of the product of the outside term with each of the inside terms. Here, the outside term is 2/3 and the inside terms are 1/2x and 12. So:
[tex]\frac{2}{3} *(\frac{1}{2} x+12)=\frac{2}{3} *\frac{1}{2} x+\frac{2}{3} *12=\frac{1}{3} x+8[/tex]
Now distribute the right side. Here, the outside term is 1/2 and the inside terms are 1/3x and 14, so:
[tex]\frac{1}{2} *(\frac{1}{3} x+14)-3[/tex]
[tex]\frac{1}{2} *(\frac{1}{3} x+14)-3=\frac{1}{2} *\frac{1}{3} x+\frac{1}{2} *14-3=\frac{1}{6} x+7-3=\frac{1}{6} x+4[/tex]
We now have:
[tex]\frac{1}{3} x+8=\frac{1}{6} x+4[/tex]
Isolate the variable by bringing 1/6x to the left and bringing 8 to the right:
[tex]\frac{1}{3} x-\frac{1}{6} x=4-8[/tex]
[tex]\frac{2}{6} x-\frac{1}{6} x=-4[/tex]
[tex]\frac{1}{6} x=-4[/tex]
x = -4 * 6 = -24
The answer is A.
Steps to solve:
2/3(1/2x + 12) = 1/2(1/3x + 14) - 3
~Distribute
1/3x + 8 = 1/6x + 7 - 3
~Combine like terms
1/3x + 8 = 1/6x + 4
~Subtract 1/6x to both sides
1/3x + 8 - 1/6x = 1/6x + 4 - 1/6x
~Simplify
1/6x + 8 = 4
~Subtract 8 to both sides
1/6x + 8 - 8 = 4 - 8
~Simplify
1/6x = -4
~Multiply 6 to both sides
1/6x * 6 = -4 * 6
~Simplify
x = -24
Best of Luck!
Answer CORRECTLY please !! Will mark brainliest !!!!
Answer:
i dont know need points
Step-by-step explanation:
Hunter assumed he would get 64 problems correct on his test, but he actually got 78 correct. What was his percent error? Round to the nearest percent
Answer:
=82%
Step-by-step explanation:
64:78*100=82%
Eric needs a $1,500 loan in order to buy a drone. Which loan option would cost him the MOST in interest?
A) A 24-month loan with a 6.25% annual simple interest rate.
B) A 30-month loan with a 6.00% annual simple interest rate.
C) A 36-month loan with a 4.00% annual simple interest rate.
D) A 42-month loan with a 3.75% annual simple interest rate.
Answer:
Pretty sure its A
Step-by-step explanation:
wait hold on im wrong
how do you delete an answer
The table shows the relationship between the number of minutes that a hose
has been on and the number of gallons of water that have been added to a
plastic pool. Which statement is true?
0
5
10
15
20
Minutes Hose
On
Gallons of
Water in Pool
0
80
120
160
»
» The relationship is additive because
the number of minutes can be found
by adding 5 to the number of gallons.
The relationship is additive because
the number of gallons can be found by
adding 5 to the number of minutes.
»
The relationship is multiplicative
because the number of gallons can be
found by multiplying the number of
minutes by 8.
The relationship is multiplicative
because the number of minutes can
be found by multiplying the number of
gallons by 8.
Answer:
(C)The relationship is multiplicative because the number of gallons can be
found by multiplying the number of minutes by 8.
Step-by-step explanation:
Given the table below which shows the relationship between the number of minutes that a hose has been on and the number of gallons of water that have been added to a plastic pool.
[tex]\left|\begin{array}{c|c}$Minutes Hose On&$Gallons of Water in Pool\\-------&-------\\0&0\\5&40\\10&80\\15&120\\20&160\end{array}\right|[/tex]
We can see that if we multiply the first column by 8, we will obtain the second column. Therefore the relationship is multiplicative because the number of gallons can be found by multiplying the number of minutes by 8.
The correct option is C.
Indicate whether each of the following fractions is proper or improper.
a. 4⁄16
b. 75⁄70
c. 2⁄15
d. 6⁄6
Answer:
Answers are below
Step-by-step explanation:
a. 4⁄16 Proper because the numerator is less than the denominator.
b. 75⁄70 Improper because the numerator is greater than the denominator.
c. 2⁄15 Proper because the numerator is less than the denominator.
d. 6⁄6 Proper because the numerator is less than or equal to the denominator.
If these answers are correct, please make me Brainliest!
Find the zeros of the function. Write the smaller solution first, and the larger solution second. f ( x ) = ( x − 1 ) 2 − 36
Answer:
-13,1
Step-by-step explanation:
f(x)= (x+6)^2-49
When we find the zero's we set f(x) =0
0= (x+6)^2-49
Add 49 to each side
49= (x+6)^2-49+49
49= (x+6)^2
Take the square root of each side
±sqrt(49) = sqrt((x+6)^2)
±7 = (x+6)
Subtract 6 from each side
±7-6 = (x+6-6)
±7-6 = x
7-6 =x -7-6 =x
1=x -13=x
Which of the following could be the equation of the function below?
On a coordinate plane, a curve crosses the y-axis at y = negative 1.5. It has a maximum at negative 1.5 and a minimum at negative 2.5. It goes through 2 cycles at pi.
y = 0.5 cosine (2 (x minus StartFraction pi Over 2 EndFraction)) + 2
y = 0.5 cosine (4 (x minus StartFraction pi Over 2 EndFraction)) minus 2
y = 0.5 cosine (4 (x + pi)) + 2
y = 0.5 cosine (2 (x minus pi)) minus 2
Answer:
y = 0.5 cosine (4 (x - pi/2)) - 2
Step-by-step explanation:
Taking the general form:
y = A cosine (Bx - Cπ)) + D
In the following case. the constants are:
y = 0.5 cosine (4x - 2π)) - 2
A: 0.5
B: 4
C: 2π
D: -2
The range of this function is:
range = [-|A|+D, |A|+D]
range = [-0.5-2, 0.5-2]
range = [-2.5, -1.5]
Which coincides with "It has a maximum at negative 1.5 and a minimum at negative 2.5"
At x = 0, the function value is:
y = 0.5 cosine (4(0) - 2π)) - 2
y = 0.5 - 2 = -1.5
As indicated in "a curve crosses the y-axis at y = negative 1.5"
The period of the function is:
period: 2π/B
period = 2π/4 = π/2 or 2 cycles at π
as described in "It goes through 2 cycles at pi."
Answer:
B) y = 0.5 cosine (4 (x minus StartFraction pi Over 2 EndFraction)) minus 2
Explanation:
Hope you have a great day!
Find the perimeter of the figure.
Answer:
69.8
Step-by-step explanation:
"Just look at the graph," the player's agent said. "Phil's hits have doubled since last year. We are looking for a large raise
and a long contract."
Look at the graph
Phil's Hits
Thisyear
Last year
100 120 140 160 180 200
Is the agent's claim misleading? Why or why not?
a. No, the top line is twice the length of the bottom line showing that Phil has doubled his number of
hits
b. Yes, although one line is twice the length of the other, it does not show twice the number of hits.
c. Yes, the horizontal scale does not have uniform increments starting with zero.
d. Both b and c.
Answer:
option d: both b and c is right option
Answer:
It is D on Edge
Step-by-step explanation:
200 pointssss
(07.01)
Which of the values in the set {1, 2, 3, 4} is a solution to the equation 3x + 3 = 15?
1
2
3
4
Answer:
9, 6, 3, 0
Step-by-step explanation:
I just input the values multiplied and subtracting from using the number 15
Answer:
3
Step-by-step explanation:
Complete the point slope equation of the line through (1,3) and (5,1)
Answer:
Step-by-step explanation:
(1-3)/(5-1)= -2/4= -1/2
y - 3 = -1/2(x - 1)
y - 3 = (-1/2)x + 1/2
y - 6/2 = (-1/2)x + 1/2
y = (-1/2)x + 7/2
PLS HELP THIS IS A LOT OF PIONTS SO BE FAST
Answer:
see below
Step-by-step explanation:
distance = rate * time
meters Edgar ran= e*t
meters Mathieu ran = m*t
Difference in meters per second is the difference in rates= m-e
Number of seconds = time = t
Answer:
this took like forever but there u go
Step-by-step explanation:
distance = rate * time
meters Edgar ran= e*t
meters Mathieu ran = m*t
Difference in meters per second is the difference in rates= m-e
Number of seconds = time = t
35 POINTS HELP ASAP!!!
Answer: 3
Step-by-step explanation:
[tex]3:1[/tex]
[tex]\frac{3}{1}=3[/tex]
What percent of the students, who have a computer, do not have a phone?
Answer:
if it was out of all of the data it would be 76 / 300
The point (7,-9) lies on a circle. What is the length of the radius of this circle if
center is located at (5,-7)?
Answer: For this all you have to do is find the distance between the two points. Since you have the centre and a point the lies on the circle, the radius is simply the distance from the centre to the point.
Step-by-step explanation:
Find the volume of the cylinder.
Either enter an exact answer in terms of 7 or use 3.14 for
4
units
Stuck? Watch a video or use a hint.
Answer:
Step-by-step explanation:
What is the completely factored form of x2 – 16xy + 64y2?
Oxy(x - 16 + 64y)
Oxy(x + 16 + 64y)
O (X -8y)(x -8y)
(X + 8y)(x + 8y)
Answer:
(x-8y)(x-8y) or (x-8y)^2
HELP ASAP WILL MARK BRAINLIEST
IF YOU DONT KNOW DONT ANSWER
Answer:
y is 10 degrees the pink one
y = 10
Hope This helps :D
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(−2,1), B(3, 1), C(3,4), and D(−2,4).
What is the perimeter of rectangle ABCD?
_____units
Answer:
The perimeter of rectangle ABCD = 16 units
Step-by-step explanation:
The vertices of the rectangle: A(−2,1), B(3, 1), C(3,4), and D(−2,4).
AB is horizontal, so measre the difference between the x coordinates of A and B.
between -2 and 3 are 5 units.
BC is vertical, so measre the difference between the y coordinates of B and C.
between 4 and 1 is 3 units.
The perimeter = 2 * ( AB + BC )
Substitute AB = 5 and CD = 3
2 * ( 5 + 3 )
2 * 8
The perimeter of rectangle ABCD = 16 units
Answer:
16 units
Step-by-step explanation:
finding the lengths of all sides which are 5,5,3, and 3 then adding them will get you 16 units.
Find the length of x
Answer:
7.2
Step-by-step explanation:
divide 28.8 by 4
The points (-16,r) and (-4,11)lie on a line with slope 1/2. Find the missing coordinate r?
Answer: The missing coordinate R is 5.
Step-by-step explanation:
11=1/2(-4) + B
11=-2 +B
B= 13
B represents the y-intercept
so we will use the equation y=mx + B and we know the slope and y intercept.
r= 1/2(-16) + 13
r= 5
Sandra bought 3 pounds of sweet potatoes for
$4.50. What is the cost per pound of the sweet
potatoes?
Answer:
$1.5
Step-by-step explanation:
A weight is attached to a spring which moves up and down as a function of time
plt) uves the position of the weight at time (t). Position is in centimeters and time is in seconds
Complete the following sentences based on the graph of the function,
• The graph is a nonlinear function
• The initial position of the weight is centimeters
• The weight first reaches equilibrium Whent = seconds)
Note: We say that the weight is at equilibrium whenever plt) = 0 cm, and we say that the initial position of the block
is its position when t = 0
Simplify
-2x - 4(4x - 8)
Answer:
- 18x + 32
Step-by-step explanation:
Given
- 2x - 4(4x - 8) ← distribute parenthesis
= - 2x - 16x + 32 ← collect like terms
= - 18x + 32
Which of the following describe 9.49?
Answer:take 9x49
Step-by-step explanation:
You’ll get the answer
How many 3-letter combinations can be made from this set if no letter can be repeated?
{a, b, c, d, e, f}
A.100
B.120
C.240
D.30
Answer:
B 120 different combinations
Step-by-step explanation:
There are 6 letters to choose from
Picking a letter for the first spot 6
Then there are 5 letters left
Picking a letter for the second spot 5
Then there are 4 letters left
Picking a letter for the second spot 4
6*5*4
= 120
