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atroni [7]
3 years ago
7

Hello I need help with this algebra problem. 23X negative 4=65​

Mathematics
1 answer:
Dmitrij [34]3 years ago
4 0

Answer:

If it 23x - 4=65​ then it x=3, but if it 23x(-4)=65​ then it x=−0.707

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Growth mindset is a belief that intelligence can improve through________
RoseWind [281]

Answer:hard work

Step-by-step explanation:

Remember this from last year Lol

3 0
3 years ago
What is 3(u+1)+4u+1?
il63 [147K]
I’m pretty sure the answer is 7u+4
6 0
3 years ago
The three planes given meet at a point. The planes are 3x+y-2z = 11, 4x-2y+z = -5, x+5y-4z = 33. The intersection is at what poi
Mumz [18]

Answer:

(2, 7, 1)

Step-by-step explanation:

We have three equations, and using Gauss-Jordan Elimination, we can solve for x, y, and z

3x + y - 2z = 11

4x - 2y + z = -5

x + 5y - 4z = 33

We can start by taking out the z from all rows except one. To do this, we can work with the second row. I chose the second row because -5 is small and easy to add up with other numbers, and z has no coefficient in this row.

We can add 2 times the second row to the first row and 4 times the second row to the third row to get

11x - 3y = 1

4x - 2y + z = -5

17x -3y = 13

We then have the first and third rows having two variables. Since the y coefficients are the same, we can eliminate the y by adding the negative of the first row to the third row. Our result is then

11x - 3y = 1

4x - 2y + z = -5

6x = 12

From the third row, we can gather that x= 2. We can then plug that into the first row to get

22 -3y = 1

subtract 22 from both sides

-3y = -21

divide both sides by -3

y = 7

We can then plug our x and y values into the second row to get

4(2) - 2(7) + z = -5

8 - 14 + z = -5

-6 + z = -5

add 6 to both sides

z = 1

Our answer is thus (2, 7, 1)

7 0
3 years ago
Can someone please help I am stuck. will give brainliest.​
AlekseyPX

Answer:

D

Step-by-step explanation:

(a^{m})^{n}= a^{m*n}\\\\\\(\frac{3^{4}}{7^{3}})^{3}=\frac{(3^{4})^{3})}{(7^{3})^{3}}\\\\=\frac{3^{3*4}}{7^{3*3}}\\\\=\frac{3^{12}}{7^{9}}

4 0
3 years ago
Can someone help with this please?
Fittoniya [83]
Which question do you need help with? 
7 0
3 years ago
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