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
BaLLatris [955]
3 years ago
9

Please help it’s due at12!!!

Mathematics
1 answer:
Goshia [24]3 years ago
7 0

Answer:

$2.25 per ft² (I think)

Step-by-step explanation:

Subtract 4.9 from 6.4 to get 1.5

Multiply 6.4 by 1.5 and multiply 4.9 by 1.5

Then you get 9.6 and 7.35

Subtract 7.35 from 9.6 and get 2.25

You might be interested in
Not sure need help ​
WITCHER [35]

Answer:

the circumference is 31.4159 (or 31.42)

5 0
3 years ago
Construct ∆ABC using the following segment
salantis [7]

Answer:

  Use the angle copy procedure to copy the angles to the ends of c.

Step-by-step explanation:

An angle is copied with a straightedge two settings of a compass.

  1. Set the compass to an arbitrary radius. An appropriate choice is a radius that is half or more of the length of the shortest ray of the angles you want to copy.
  2. Put the point of the compass at the vertex of an angle you want to copy. Using that same radius, draw arcs through both rays of the angle. Do this for all the angles you want to copy.
  3. Put the point of the compass at the place where you want the vertex of the copied angle. Here, that is either (both) end points of segment c. (You might want to label the ends of segment c as "A" and "B" so you know which angle you're copying where.) Using the same radius as before, draw an arc through the segment and through the space where you expect the ray from the copied angle to lie.
  4. For one of the source angles, set the compass radius to the distance between the points where the first arc crosses the angle's rays. Then, put the point of the compass at the place on the segment c where the corresponding arc crosses. Use the compass to mark a point on that arc the same distance as on the source angle. Draw a line from the vertex through the point you just marked. That line will make the same angle with c as the original angle.
  5. Repeat step 4 for the other angle you want to copy, at the other end of segment c. In general, the compass setting will be different (unless all the angles have the same measure).

The place where the rays from the copied angles cross is the third vertex (vertex C) of the triangle you're constructing.

_____

<em>Comments on the attached diagram</em>

In the attached diagram, "step 1" is to place the target vertex. You already have that as one end of segment C. The arcs numbered 2 and 3 in the diagram are the arcs resulting from executing steps 2 and 3 above. (They have arbitrary radius "r", which is the same everywhere.) You will have two sets, because you are copying two angles.

The arcs numbered 4 and 5 in the diagram have radius ST, the distance you set in step 4 above. That distance is used as the radius of arc 5, so the length VW will be the same as the length ST. The straightedge is used to draw a line through B and W, completing the copy of the angle.

6 0
3 years ago
What is the y-intercept of the line whose equation is y =1/2 x - 3?<br><br> 3<br> 1/2<br> -3
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

y = mx +b

Here , m is the slope and b is the y-intercept

y = (1/2)x - 3

y-intercept = -3

5 0
2 years ago
Check whether the function yequalsStartFraction cosine 2 x Over x EndFraction is a solution of x y prime plus yequalsnegative 2
Jobisdone [24]

The question is:

Check whether the function:

y = [cos(2x)]/x

is a solution of

xy' + y = -2sin(2x)

with the initial condition y(π/4) = 0

Answer:

To check if the function y = [cos(2x)]/x is a solution of the differential equation xy' + y = -2sin(2x), we need to substitute the value of y and the value of the derivative of y on the left hand side of the differential equation and see if we obtain the right hand side of the equation.

Let us do that.

y = [cos(2x)]/x

y' = (-1/x²) [cos(2x)] - (2/x) [sin(2x)]

Now,

xy' + y = x{(-1/x²) [cos(2x)] - (2/x) [sin(2x)]} + ([cos(2x)]/x

= (-1/x)cos(2x) - 2sin(2x) + (1/x)cos(2x)

= -2sin(2x)

Which is the right hand side of the differential equation.

Hence, y is a solution to the differential equation.

6 0
3 years ago
What is the Greatest Common Factor for 72x³ - 80x4
Cloud [144]
4x^4
so the answer would be
4x^4(18x-20)
4 0
3 years ago
Other questions:
  • The silver bar is 15cm long. The bar is melted and the silver is then made into a cuboid. The base of the cuboid is 10cm by 10 c
    12·1 answer
  • WHOEVER GETS IT RIGHT GETS BRAINLIEST
    15·2 answers
  • 8. Solve the system of equations using substitution.
    9·1 answer
  • 5x4 – 3x² + 7x +x state the degree and leading coefficient of each polynomial​
    13·1 answer
  • 3x + 21 6x - 60 find the two angles measure from the diagram answers 78,102 78,78 or 102,102​
    12·2 answers
  • Answer this question: -5x - 10y + 7x + 15y<br> Please try to explain it as best as possible &lt;3
    9·2 answers
  • What is the vaule of -2 1/6 - 1 1/4 + 1 3/4?<br> A. -1 2/3<br> B. -1 1/3<br> C. 2 1/3<br> D. 2 2/3
    15·2 answers
  • The measure of 2WXZ is 100°.<br> What is the measure of ZYXZ?
    9·1 answer
  • Someoneee plsss helpppp
    11·1 answer
  • Coach Sandberg wants to order 115 jackets and 27 cabs for $12 each
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!