1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alekssr [168]
2 years ago
13

Urgent! Math! Can somebody answer 1-3 for me, pls!

Mathematics
1 answer:
Crank2 years ago
7 0

Answer:

Step-by-step explanation:

I dont know

You might be interested in
Find the value of y for the given value of x.<br><br> y=2−9x;x=23
Morgarella [4.7K]

Y= -205

Step-by-step explanation:

Y=2-9x x=23

Y=2-9(23)

Y=2-207

Y= -205

4 0
3 years ago
Read 2 more answers
2. What is the x-value to the solution for the system of equations y = -5x - 9 and y = 2x<br> + 5.
pav-90 [236]

Answer:

The x-value is -2

Step-by-step explanation:

U can substitute any of the equations for y

-5x + (-9) = 2x + 5

-9 = 7x + 5

-14 = 7x

-2 = x

x = 2

7 0
3 years ago
Shona is buying a rug for her room. Store A has the rug for $45 with a 10% discount. Store B has the same rug for $46 and is off
Rudik [331]
Store A :
0.90(45) = 40.50......40.50 + .06(40.50) = 40.50 + 2.43 = 42.93

store B :
46 - 10 = 36......36 * .06(36) = 36 + 2.16 = 38.16

she would have to purchase the rug from store B...because she doesn't have enough money to purchase it from store A. She would have (40 - 38.16) = $ 1.84 in change.

I find this question to be a little misleading....because on a rebate, u dont get the discount right away....u first pay full price, and then later u get the discount mailed back to you. So actually, she wouldn't have enough money at either store.
8 0
3 years ago
What is the perimeter and area of the figure
aleksandrvk [35]

the perimeter is 35 and are is 40

6 0
3 years ago
Find an equation for the plane that is tangent to the surface z equals ln (x plus y )at the point Upper P (1 comma 0 comma 0 ).
alexira [117]

Let f(x,y,z)=z-\ln(x+y). The gradient of f at the point (1, 0, 0) is the normal vector to the surface, which is also orthogonal to the tangent plane at this point.

So the tangent plane has equation

\nabla f(1,0,0)\cdot(x-1,y,z)=0

Compute the gradient:

\nabla f(x,y,z)=\left(\dfrac{\partial f}{\partial x},\dfrac{\partial f}{\partial y},\dfrac{\partial f}{\partial z}\right)=\left(-\dfrac1{x+y},-\dfrac1{x+y},1\right)

Evaluate the gradient at the given point:

\nabla f(1,0,0)=(-1,-1,1)

Then the equation of the tangent plane is

(-1,-1,1)\cdot(x-1,y,z)=0\implies-(x-1)-y+z=0\implies\boxed{z=x+y-1}

7 0
4 years ago
Other questions:
  • 12,14 and 16 are the length of the sides on the triangle
    14·2 answers
  • There are 12 feet of wrapping paper on each roll. Jill needs 84 feet of wrapping paper. Which equation can Jill use to find the
    7·2 answers
  • 1. What is the value of the expression 8^–2?<br> a. -16<br> b. 1/64<br> c.1/16<br> d.64
    7·2 answers
  • "three times a number, increased by<br> seventeen"?
    10·1 answer
  • Help please!
    6·2 answers
  • Ten thousand times the sum of a number and seven hundred​
    8·1 answer
  • In tan A = 7/9 the measure of
    8·1 answer
  • When we take a census, we attempt to collect data from (a) a stratified random sample. (b) every individual selected in an SRS.
    12·1 answer
  • Tiana deposited 500 into an account that earns 6% simple interest. how many years will it take for the value of the account to r
    14·1 answer
  • A 6-pack of toilet paper costs $5.40.  A 12-pack of toilet paper costs $11.  Which package offers the best price per roll?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!