Answer:
Step-by-step explanation:
-x-3y-3z=16
x=-3y-3z-16
-6x+3y+2z=-27
6x=3y+2z+27
x=3/6 y + 2/6 z +27/6
x=1/2y+1/3z+9/2
4x+6y+4z=-22
4x=-6y-4z-22
x= -6/4y -4/4 z -22/4
x=-3/2y -z-11/2
Answer:
(x, y, z) = (2,-3,-3)
Step-by-step explanation: 4x+6y+4z = -22 Divide both sides by = 2x + 3y+2z= -11
To solve the system , rewrite it as two systems each consisting of two equations.
1) {-x-3y-3z = 16} {-6x+3y+2z = -27}
2) {-x-3y-3z=16} {2x+3y+2z=-11}
Solve the system of equations
1) -7x-z=-11
2)x-z=5
Write as a system of equations
{-7z-z=-11} {x-z=5}
Solve the system of equations
z = -3
x= 2
Substitute the given value of z, x into the equation : -x-3y-3z = 16
-2-3y-3x(-3)= 16
Solve for Y
y= -3
Can someone just check this to make sure it is correct and please be honest because my grade depends on this
Answer:
Your answers are right
Josie walks 3/4 mile in 1/5 hour. What is Josie's speed in miles per hour?
Find the sum and the product of the roots of the equation: x^2+35x−51=0
what is the product of them?
Answer:
(a)
[tex]Sum = -35[/tex]
[tex]Product = -51[/tex]
(b)
[tex]Product = 1785[/tex]
Step-by-step explanation:
Given
[tex]x^2 + 35x - 51 = 0[/tex]
Required
(a) Determine the sum and product of the equation
(b) Determine the products of the (a)
Solving (a)
The general form of a quadratic equation is:
[tex]ax^2 + bx + c = 0[/tex]
Where
[tex]Sum = -\frac{b}{a}[/tex]
[tex]Product = \frac{c}{a}[/tex]
By comparison of [tex]ax^2 + bx + c = 0[/tex] tp [tex]x^2 + 35x - 51 = 0[/tex]
[tex]a = 1[/tex]
[tex]b = 35[/tex]
[tex]c = -51[/tex]
So:
[tex]Sum = -\frac{b}{a}[/tex]
[tex]Sum = -\frac{35}{1}[/tex]
[tex]Sum = -35[/tex]
[tex]Product = \frac{c}{a}[/tex]
[tex]Product = \frac{-51}{1}[/tex]
[tex]Product = -51[/tex]
Solving (b)
From (a) above, we have:
[tex]Sum = -35[/tex]
[tex]Product = -51[/tex]
Their product is:
[tex]Product = -35 * -51[/tex]
[tex]Product = 1785[/tex]
In chemistry you need to dilute an alcohol solution down. You have a 90% alcohol solution and a 20% alcohol solution. If you want to end up with 335L of 50% alcohol, how much of each do you need?
Answer:
Girl what is the answer
Step-by-step explanation:
HELP ASAP !! NEED ANSWERS !!!
Answer: 180 degrees clockwise
Step-by-step explanation:
On a piece of paper, graph y+4<1/2 x - 2. Then determine which answer
choice matches the graph you drew
.
A. Graph A
B. Graph B
C. Graph
D. Graph D
Answer:
On a piece of paper, graph y+4<1/2 x - 2. Then determine which answer
choice matches the graph you drew
.
Step-by-step explanation:
On a piece of paper, graph y+4<1/2 x - 2. Then determine which answer
choice matches the graph you drew
.
Answer: the correct answer is D. It says less than or equal to and that means it’s shaded below the line and a full line. Alex said it was correct
Step-by-step explanation:
If x - 3 Is a factor P(x) = x ^ 3 - 7x ^ 2 + 15x - 9, which of the following represents the complete factorization for P(x) ?
A. (x-3)(x+4)(x+1)
B. (x-3)(x+3)(x+1)
C. (x-3(x-3)(x-1)
D. (x-3)(x+3)(x-1)
the answer is c, i just got this question
Answer: C
Step-by-step explanation:
hduuw8sisihaisiswkjznaswiqqlnaa
Answer:
whats ur question?
Step-by-step explanation:
Answer:
I don't understand
Step-by-step explanation:
Sorry, I cannot help
I need help on this one
Answer:
A
Step-by-step explanation:
Cisco wants to purchase three items at
the sporting goods store. The items he
wants to buy are football pants for $21.99,
football pads for $25.49, and football
cleats for $27.95. How much will the three
items cost?
Answer:
Rounded-75.5
Not Rounded 75.43
Step-by-step explanation:
22+25.5+28= 75.5 if that is not an option than your not aloud to round.
The answer when you don't round is 75.43.
Find an equation of a line that is parallel to y = 5x + 9 and passes through
the point (3, 11).
Answer:
y = 5x - 4
Step-by-step explanation:
The equation y = 5x + 9 currently does not pass through the point (3, 11). It asks us to create the equation of a line parallel to y = 5x + 9. So all we have to change is the 9, where the line passes through the y-coordinate. The slope, 5x, has to stay the same, otherwise, the new line will not be parallel to y = 5x + 9.
The line has to pass through to point (3, 11). The 3, stands for the x value, and 11 the y value. If we start at the y value of -4, that means the very next point would be (1, 1), and the next one, (2, 6), and the final one, (3, 11). This is because we know the slope of the line is 5x, that means for every 1 gained x value, the y value gains 5 values.
So, the equation of the new line would be this:
y = 5x - 4
I Hope That This Helps! :)
Jenna multiplied four numbers together and then divided by -2. The result was a positive value.
Which of the following statements MUST be true?
An odd number of factors were negative.
None of the factors were negative.
An even number of factors were negative.
All of the factors were negative.
Answer:
natatae ako shuta hehhe
de joke lang
Answer: C: An odd number of factors were negative.
Step-by-step explanation:
a positive number being the answer an odd number number of factors would be needed for it to be
If f(x)=x2-1, what is f(4)?
Answer: 15
Step-by-step explanation:
Substitute 4 in x.
Rearrange the formula to make the letter in the square bracket the subject
y= 3x - 5 (x)
Answer:
y= 3x - 5
y+5 = 3x
x = (y+5)/3
Answer:
x = [tex]\frac{y+5}{3}[/tex]
Step-by-step explanation:
Given
y = 3x - 5 ( add 5 to both sides )
y + 5 = 3x ( isolate x by dividing both sides by 3 )
[tex]\frac{y+5}{3}[/tex] = x
Felicia gives her dog medication daily. She gives him 5 milliliters for each 10 pounds of his weight. He
weighs 40 pounds. How many liters of medicine does she give him each day? (If your answer is
something like 0.080, do not include the trailing zero. Example: Type 0.080 as 0.08) *
Your answer
Answer:
your answer is 20mL or .020 Liters
Step-by-step explanation:
5 x 4 is 20, we do not add the 40 because in the problem it says 5mL for every 10 pounds, so, therefore, your answer is 20mL/.020 Liters
hope this helps have a great day ツ
A line includes the points (4, – 6) and (8, – 4). What is its equation in point-slope form
Answer:
1/2x-8
Step-by-step explanation:
Rise over run for slope
Plug in values for y intercept
Answer:
the answer is [tex]m=\frac{1}{2}[/tex]
Step-by-step explanation:
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
Think I fell asleep during this lesson... whoops ¯\_(ツ)_/¯
**Wrong answers will be reported
Answer:
I believe it's 65 degrees.. I'm sry if wrong I may have fell asleep too
Step-by-step explanation:
Peter, Bridget and Caroline share some sweets in the ratio 4:3:1. Peter gets 20 sweets. How
many sweets are there altogether?
Please help
Can anyone tell me if I have this correct?
16. Find the value of x*
8. 2x-6
A 10
B 7
C -7
D -10
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]2x - 6 = 8[/tex]
Add sides 6
[tex]2x - 6 + 6 = 8 + 6[/tex]
[tex]2x = 14[/tex]
Divide sides by 2
[tex] \frac{2x}{2} = \frac{14}{2} \\ [/tex]
[tex]x = 7[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
The correct answer is (( B )) .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
the perimeter of a semicircle with a radius of 11cm
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Perimeter of circle find by following equation :
[tex]P = 2 \times (\pi) \times (radius)[/tex]
Semicircle is half of circle , thus :
[tex]P = \frac{1}{2} \times (2) \times (\pi) \times (11) \\ [/tex]
[tex]P = 11\pi[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Answer:
56.54
Step-by-step explanation:
R=11cm
circumference=2pieR
2*22/7*11
44/7*11
69.08
circumference/2
69.08/2
34.54
diameter
11*2
22
perimeter= 34.54+22
56.54
plz help ill give you brainliest for f
right answer
Simplify 3x + 5y + 10x + 6y
Answer:
13x + 11y
Step-by-step explanation:
3x and 10x both have x so we can add them
5y and 6y both have y so we add 5 and 6
What is the percent of change from 4 to 1?
Answer:
1 is 25% of 4, so 75% decrease
Step-by-step explanation:
Given that sin θ = 3/4 and θ is in Quadrant II:
Find cos θ.
this is for the Sin
*Remember that sin = opposite / hypotenuse*
a² + b² = c² (where a and b are legs and c is the hypotenuse)
From the picture, you can see:
a = 3
c = 4
Plug these into the equation and solve for b.
* a² + b² = c² *
step 1: 3² + b² = 4²
step 2: 9 + b² = 16
step 3: b² = 16 - 9
step 4: b² = 7
step 5: √(b²) = √7
step 6: b = ± √7
FOR COS:
From the picture, you can see that if θ is in quadrant II, b has to be negative.
b = -√7 = adjacent
Remember that cos θ = adjacent / hypotenuse.
cos θ = adjacent / hypotenuse
cos θ = (-√7 / 4)
how do you know that 4/11 is a reapeating decimal
Answer:
Because 4 divided by 11 does not have an exact answer, it just keeps going on.
Step-by-step explanation:
Write a justification for each step...
25 POINTS!! PLEASE HELP!
Answer:
The length of TQ is 14.
Step-by-step explanation:
The length of SV and VS are the same.
4x - 1 = 15
4x = 16
x = 4
Similarly, the length of TS and TQ are the same.
3x + 2 = 3(4) + 12 = 14
Please answer ASAAAAP get it right no I’ll give brainliest!
Answer:
The answer 175 3/4 me compadre
the graph below shows a quadratic function f(x) and an absolute value function g(x)
which of the following x-values are approximate solutions to the equation f(x)=g(x)? select all that apply
Answer:
The x-values that are approximate solution of the equation [tex]f(x) = g(x)[/tex] are [tex]x_{1} \approx -3.5[/tex] and [tex]x_{2}\approx 5[/tex], respectively.
Step-by-step explanation:
From graph we infer that the x-values that represents a solution to the system of equations corresponds to those values of x in which both functions coincide. As we see, there are two x-values for [tex]f(x) = g(x)[/tex], which are described below:
[tex]x_{1} \approx -3.5[/tex] and [tex]x_{2}\approx 5[/tex]
The x-values that are approximate solution of the equation [tex]f(x) = g(x)[/tex] are [tex]x_{1} \approx -3.5[/tex] and [tex]x_{2}\approx 5[/tex], respectively.
