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
Andrej [43]
3 years ago
8

Solve the following system of equations. 2x + 5y = -18 and y = -4x

Mathematics
1 answer:
andriy [413]3 years ago
7 0

Answer:

x=1 and y= -4

Step-by-step explanation:

step one: plug -4x into y in thi]e first equation.

2x+5(-4)= -18

step two: solve for x

2x-20= -18

(add 20 to both sides to eliminate -20 on the right)

2x=2

(divide both sides by 2 to get x by its self)

x=1

step 3: now that we found the value for x plug it in to either equation and solve for y

y= -4x

y= -4(1)

y= -4

You might be interested in
What is the dimension of a square if it's area is 81 cm2
miskamm [114]
Each side of the square is 9cm
6 0
3 years ago
Read 2 more answers
Consider the given vector field. f(x, y, z) = cos(xz)j − cos(xy)k (a) find the curl of the vector field
Ainat [17]

Answer:

∇ × F = [xsin(xy)+xsin(xz)]i - ysin(xy)j - zsin(xz)k

Step-by-step explanation:

Given the vector field,

f(x, y, z) = cos(xz)j − cos(xy)k

Curl is represented as ∇×

Curl of the field F given will be expressed as ∇ × F

The symbol ∇ known as nabla is a 3-dimensional vector expressed as

∇ = (δ/δx)i + (δ/δy)j + (δ/δz)k

∇ × F = {(δ/δx)i + (δ/δy)j + (δ/δz)k}× 0i + cos(xz)j − cos(xy)k

Curl of the function can be gotten by finding the cross product as shown in the attachment.

6 0
3 years ago
The inequalitly 3y + 8 > 2 solve for y
Agata [3.3K]
<span>3y + 8 > 2

3y + 8 - 8 > 2 - 8

3y > -6

3y ÷ 3 > -6 ÷ 3

y > -2

Hope this helps!!
~Kiwi
</span>
8 0
3 years ago
SHORT RESPONSE Two angles of a triangle have measures of 35° and 80°. Find the values of the exterior angle measures of the tria
Oduvanchick [21]

Answer:

Step-by-step explanation:

Before giving the exterior angles, find the third angle. A triangle (all triangles) measure 180 degrees.

35 + 80 + x = 180

115 + x = 180

x = 180 - 115

x = 65

Exterior angles are supplements of the interior angles.

So the exterior angle to 65 degrees is 180 - 65 = 115

And the exterior angle to 35 degrees is 180-35 = 145

The exterior angle to 80 degrees is 180 - 100 = 80

5 0
3 years ago
Write the value of the underline digit 105,980,774 the digit is 8
Ghella [55]

ten thousand is the ansewer
5 0
3 years ago
Read 2 more answers
Other questions:
  • You’re setting sales goals for next month you base your goals on previous average sales the actual sales for the same month for
    10·1 answer
  • W increased by 15 what is the alegretic expression'
    7·1 answer
  • I need help with this question! &lt;3 thanks
    15·1 answer
  • Times what times what equals48
    12·2 answers
  • Plz help quicky.......................................
    15·1 answer
  • Pleaseeeee help meeeeeee
    15·1 answer
  • Help please!!!!!!!!!!!!!!!!!
    11·2 answers
  • The co-ordinate of the point whose abscissa is -3 and ordinate is 0 is (0,-3)
    11·1 answer
  • The length of a rectangular deck is 5 times its width. If the deck’s perimeter is 24 feet, what is the deck’s area?
    13·1 answer
  • On the go company has two monthly plans for its customers. The EZ pay plan cost a $0.15. Solve the equation, showing each step.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!