Answer:
(-4, -3)
Step-by-step explanation:
Using elimination by addition and subtraction works best here.
Suppose we decide to eliminate x temporarily. To do this, we multipy the first row by 4, obtaining
-12x + 28y = -72
4x - 4y = 8
Next, multiply the second row by 3, obtaining the "equivalent system"
-12x + 28y = -72
12x - 12y = 24
Combining these equations, column by column, we get:
16y = -48. So y = -3.
Now let's find x. Substitute -3 for y in the second equation:
4x - 4(-3) = 8, or
4x + 12 = 8, or
4x = 8 - 12 = -4. This tells us that x = -4.
The solution is thus (-4, -3).
what's the answer to
375 = 15c
Step-by-step explanation:
Given
375 = 15 c
c = 375 / 15
c = 25
Hope it will help :)❤
Down below you have pairs of equations. Which one of the equations in the pairs is the greatest and by how much?
1. 17 x 10^8 4 x 10^8
2. 2 x 10^6 7.839 x 10^6
3. 42 x 10^7 8.5 x 10^8
Step-by-step explanation:
so its easy SQARE eqauls pie dog eqals 4 and chocolateee eqauls cheess
find two numbers whose sum is 44 and whose difference is 20 (PLEASE HELP I HAVE 5 MINUTES)
Determine the follwoing quadratic equation:
0 = -3x2 + 17x – 10
What is the value of "B"?
A) -10
B)10
C)-17
D)17
Answer:
sorry but the epuation is in,but I will try
Step-by-step explanation:
0 = -3×2+17x-10
0= -6+17x-10
0+6+10=17x
16=17x
x=17/16
How much air can the basketball
hold? With a radius of 3 inches. Round to the nearest hundredth.
Answer:
113.10 if you use the pi button
113.04 if you use 3.14
Step-by-step explanation:
We want to find the volume
V = 4/3 pi r^3
The radius is 3
V = 4/3 pi (3)^3
Using the pi button for pi
V = 113.09734
Rounding to the nearest hundredth
V = 113.10
If you use 3.14 for pi
V = 113.04
I need the answer for the question -4(x-10)+8 for my homework please.
Answer:
i think the answer is
-4x+48
Solve the system of linear equations by elimination.
2x+5y=16
3x−5y=−1
HELP ME GUYS MY TEACHER IS WACHING I NEED HELP GUYS PLZZZZ
Answer:
Step-by-step explanation:
Volume=LxWxH
So, we would have 1/4*1/4*1/2=1/32
1/32
Yaritza and eddy race to school on their bikes. Yaritza bikes 2 miles in 12 minutes, eddy bikes 3 miles in 15 minutes. Who is going faster?
Mr. Ramirez built a wooden storage shed for his tools. The dimensions of the shed are shown below. What is the volume of the storage shed to the nearest cubic foot?
Answer:
[tex]Volume = 24\ ft^3[/tex]
Step-by-step explanation:
Given [Missing from the question]
[tex]Length = 170cm\\ Width = 100cm\\ Height = 40cm[/tex]
Required
Determine the volume
This is calculated as:
[tex]Volume = Length * Width * Height[/tex]
[tex]Volume = 170cm * 100cm * 40cm[/tex]
[tex]Volume = 680000cm^3[/tex]
Convert to cubic foot [Divide by 28317 ]
[tex]Volume = \frac{680000\ ft/^3}{28317}[/tex]
[tex]Volume = 24.0138432744\ ft^3[/tex]
[tex]Volume = 24\ ft^3[/tex] --- approximated
Choose the solids with approximately equal volumes.
9 cm:
5 cm
6 cm
9 cm
11 cm
cm
14
9 cm
9 cm
13 cm
-cm
14
Answer:
Adding 12 to the circle area is equal to the square area.
Or
s2 = 12 + A
Where
s = side of square
A = area of circle
So
s2 = 12 + 36
s2 = 48
Solve this for s to get the side length
Answer: It's the first cone (9cm, 9cm), the cylinder at the bottom (9cm, 3cm), and the sphere at the bottom (9/3sqrt4cm).
Step-by-step explanation: I got this right on Edmentum.
Can yall help
Thank you im really confused correct answer gets brainliest
Graph this equation :
y= 3/2 x + 2
The ages of the members of the Chess Club and the Debate Team at Jana’s school are shown in the box plots.
Which statement is true regarding these data sets?
The range of the ages of the members of the Debate Team is greater than the range of the ages of the members of the Chess Club.
The number of members in the Chess Club and the number of members in the Debate Team is the same.
The majority of the members in each club are between 15 and 17 years old.
About 50% of the members of each club are 16 or older.
Answer:
C
Step-by-step explanation:
Answer:it’s c
Step-by-step explanation:
What is the volume of a square prism that is 4 centimeters by 4 centimeters by 8 centimeters
Answer:
138 is the answer
Step-by-step explanation:
128 square
Any help on this pleasee anyone??
Tell whether the angles are adjacent or vertical. Then find the value of x.
to
128°
The angles are
vertical
X=
Answer:
x = 128
Step-by-step explanation:
Adjacent angles - Angles right next to each other. They share a common vertex
Vertical angles - angles that are vertically aligned with each other.
The angle that has a measure of 128 degrees and x are vertical angles
If you didn't know vertical angles are congruent so because one angle equals 128 degrees the other equals 128 degrees
x = 128
The given angle are the vertical angles and the measure of the angle x is 128°.
Given that,
To specify whether the angles are adjacent or vertical. Then find the value of x.
orientation of one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as the angle.
Here,
By the observation, angle x and 128° are the vertical angles and by the property of the intersection of the line both are equal angles so the measure of angle x is also equal to 128°.
Thus, the given angle is the vertical angle and the measure of the angle x is 128°.
Learn more about Angles here:
https://brainly.com/question/13954458
#SPJ2
HELP NO ONE IS HELPING AND I REALLY NEED THE ANSWERS PLEASE!!!!
How much NaBr solute is saturated at 70 degrees?
A.
110
B.
B.120
C.
130
D.
140
Answer:
120
Step-by-step explanation:
Find the value of x for the pic
3 times the difference of a number and 4 equals 12. Find the number.
Answer:
Step-by-step explanation:
9
Helppppppppp please
Answer:
b : 1/4
Step-by-step explanation:
estimate a 20% tip for $31.15
$4.65
$3.10
$6.20
$12.40
Answer: 6.20$
Step-by-step explanation:
Express as improper fraction
four ways on how save water
What is another way to write 46?
4×4×4×4×4×4
6×6×6×6
6+6+6+6
4+4+4+4+4+4
If you mean 4x6, then it would be C and D.
A would be 4^6 and B would be 6^4, both of which we don't want.
---
hope it helps
Answer:
None of the answers match your question.
how do you do: -x-x-3x+2-5 ?
Answer:
=−5x−3
Step-by-step explanation:
Let's simplify step-by-step.
−x−x−3x+2−5
=−x+−x+−3x+2+−5
Combine Like Terms:
=−x+−x+−3x+2+−5
=(−x+−x+−3x)+(2+−5)
=−5x+−3
brainliest please?
Write this expression with fewer terms, if possible:
- 8x + 2y + 1/2x - y
Answer:
=4x+y
Step-by-step explanation:
hope this helps :)
Gabriel wants to solve the equation 5 eights M equals 25 what steps should he do to get him by itself on one side of the equation
Answer:
Kindly check explanation
Step-by-step explanation:
Given the Equation :
(5/8)m = 25
The first step to take with this kind of equation is to multiply both sides by the denominator, 8
5m/8 * 8 = 25 *8
5m = 200
Then, we can divide both sides by 5 in other to isolate m
5m / 5 = 200 / 5
m = 40
Answer: m+40
Step-by-step explanation:
Given the Equation :
(5/8)m = 25
The first step to take with this kind of equation is to multiply both sides by the denominator, 8
5m/8 * 8 = 25 *8
5m = 200
Then, we can divide both sides by 5 in other to isolate m
5m / 5 = 200 / 5
m = 40
Abdul deposited $460 into a savings account that has a simple interest rate of 3.5%. Isaac deposited $550 into a savings account that has a simple interest rate of 2.8%. Who earned more interest in one year?
Answer:
Adbul earned more interest
Step-by-step explanation:
3.5% of 460 = 16.1
2.8% of 550 = 15.4
Adbul earned more interest
The functions q and r are defined as follows.
q(x)=2x + 2
r(x)=-2x²-2
Find the value of r(q(2)).
Answer:
Step-by-step explanation:
[tex]r(x)=-2x^2-2\\ \\ q(x)=2x+2\\ \\ r(q(x))=-2(2x+2)^2-2\\ \\ r(q(2))=-2(2(2)+2)^2-2\\ \\ r(q(2))=-2(6^2)-2\\ \\ r(q(2))=-2(36)-2\\ \\ r(q(2))=-72-2\\ \\ r(q(2))=-74[/tex]