Solve this system
5x – 4y + 2z = 21
-x - 5y + 6z=-24
--x – 4y + 5z =-21
O x = 5, y = -1, z = -4
0 x = 1, y = 5, z = -4
O x=-5, y = 1, z = -4
O x = -4, y = -1, z = 5
Answer:
Its the first option
Step-by-step explanation:
Write a rule for the sequence.
4, 8, 16, 32, . . .
A. Start with 4, and multiply by 2 repeatedly.
B. Start with 4, and add 8 repeatedly.
C. Start with 4, and add 2 repeatedly.
D. Start with 2, and multiply by 4 repeatedly.
Answer:
a
Step-by-step explanation:
4X2 is 8 8x2 is 16 16x2 is 32
OMG i need lots of help with my math plz help
Answer:
it should be C. i hope this helps
Can someone help me understand this
Answer:
Step-by-step explanation:
If we define the line QR to be some variable of distance 'x', we can use the relationship of cosine to figure out the length of QR.
Remember, cosine is adjacent of the angle divided by the hypotenuse of the angle. So, if we take this x value over the longest side (hypotenuse), we get the value of cos(theta).
cos(25) = x/7
Multiply both sides by 7 to get:
7*cos(25) = x
Let your calculator do the work to get:
x = 6.3
If in one batch of cookies, you used 6 cups of dough and 2 cups of chocolate chips. How many cups of chocolate chips will you need to make 3 batches of cookies?
PLZ ANSWER QUICK IT WILL HELP A LOT!
Evaluate 0.5m + 1.2m when m = 4
Answer:6.8.
Step-by-step explanation: 0.5(4) + 1.2(4) 2 + 4.8= 6.8.
I need help wit this
Answer:
$12.75
Step-by-step explanation:
Do $71.75 - $8.00. Next divide that by 5. Here you should get the "each hour" amount.
Answer: $12.75
Step-by-step explanation:
He paid ^^ per hour - $8.00
Someone help plz worth 5 point :(
Answer:
86 its the same thing on both sides if im wrong then 90?
Step-by-step explanation:
Can someone help with this.
Use what you know about end behavior to match each function in standard form with its graph below.
Answer:
2=C
3=A
4=D
5=B
Step-by-step explanation:
Answer:
2=C
3=A
4=D
5=B
Step-by-step explanation:
.
If y = x +3,
find the value of y when x = 2
Answer:
Y=-4
Step-by-step explanation:
y = 3x + 2
y = 3(-2) + 2
y = -6 + 2
y = -4
Answer:
Y=5
Step-by-step explanation:
Y=2+3
So that why y is 5
Please rate my comment I am new and I would lie to help others thankyou ♥
HELP ASAP
Select the real-world problem that could be solved using a proportion.
Answer: D
Step-by-step explanation:
D can be solved using 300/6 = x/10 making it a proportion
PLEASE HELP ASAP!!!! ILL MARK BRAINLEST
Answer:40
Step-by-step explanation:
100+10+10=3x
3x=120
Divide both sides by 3
X=40
Answer:
40
Step-by-step explanation:
add 100+10+10 and divide it by 3
What is the equation of the line that passes through the point (5,1) and has a slope if 6/5
Answer:
y = 6/5x - 5
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
10. Which of the following describes two
triangles that are similar to one another?
Answer:
It's d
Step-by-step explanation:
i did it and got it right
2. Which one of the following could be the cruising speed of a jetliner?
A. 90 km/h
B. 900 km/h
O C. 9.000 km/h
D. 90.000 km/h
Answer:
900 km/h
Step-by-step explanation:
(Will mark brainliest) Please help as soon as possible for 30 points
Answer:
90
Step-by-step explanation:
a triangle's angles all add up to 180. take 51 and 39 away from 180 and you get 90
Answer: 90 degrees
Step-by-step explanation:
Theorem:
a+b+c=180 degrees
39 degrees + 51 degrees + x degrees = 180 degrees
39 + 51 = 90
180 - 90 = 90
5x+2=7x-4. Plz answer my question
Answer:
x=3
Step-by-step explanation:
5x+2=7x−4
5x+2−7x=7x−4−7x
−2x+2=−4
−2x+2−2=−4−2
−2x=−6
-2x/2=-6/2
x=3
What’s the answer to m/3-2m/5=1/5
Answer:
m = - 3
Step-by-step explanation:
[tex]\frac{m}{3} - \frac{2m}{5} = \frac{1}{5}[/tex]
It is much easier to work with whole numbers, compared to fractions, hence one should remove the denominator of the fraction. This can be done by multiplying by the LCM (least common multiple). In this case, it is fairly obvious that the LCM of 3 and 5 is 15. Therefore multiply the entire equation by 15.
[tex]15*\frac{m}{3} - 15*\frac{2m}{5}=15*\frac{1}{5}[/tex]
Simplify
[tex]5m-6m=3[/tex]
[tex]-m=3\\m=-3[/tex]
Please hurry!!! Urgent!!!
Answer:
x=9
Step-by-step explanation:
-1+14x=12x+17
2x=18
x=9
Answer: x=9
Step-by-step explanation:
so the equation on top -1+14x= 125
and 12x+17= 125
A saving account earns 4.5 simple interest per year. If 650.00 is deposited and no withdrawals or deposits are made during one year how much interest will be earned after one year
Answer:
29.25 Interest
Step-by-step explanation:
Take the formula: I=PRT
The principal is 650.00, 4.5 is the rate, 1 year is the time, We do not know the interest.
Change the rate, 4.5 to 0.045 to help solve the problem.
Times 650.00, 0.045, and 1 together.
You will get 29.25, Which is the answer!
Booyah! You are done.
Hope this helps!
Lucia earns $150 each week. She saves 12% of her earnings.
How much money does Lucia save per week
Answer:
18 because
12% = money saved / total earned money * 100
Step-by-step explanation:
whats the solution pls help
Answer:
1/x^7
Step-by-step explanation:
Answer:
1/x^7
Step-by-step explanation:
What is an equation for the translation of y = |x| down 8 units?
Find the slope on the line
Answer:
Zero slope
Step-by-step explanation:
Answer:
1.3
Step-by-step explanation:
What is 6/87 of 45638???????
Answer:
3,147.44828
Step-by-step explanation:
[tex] \frac{6}{87} \: of \: 45638 \\ \\ = \frac{6}{87} \times 45638 \\ \\ = 6 \times 524.574713 \\ \\ = 3,147.44828[/tex]
pllsssssssssssdddddssssssdddddddddx
Answer:
(x, y) -----> (x + 3, y - 4)
Step-by-step explanation:
3 to the right means add 3 to x.
4 down means subtract 4 from y.
(x, y) -----> (x + 3, y - 4)
35 less than a number m is -72 help me please!
Answer:
m=-37
Step-by-step explanation:
m-35=-72
m=-37
Which type of number?
its c
Step-by-step explanation:
rational because when you divide both values you get 1, it's a rational number
hope it helps!