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
zepelin [54]
3 years ago
15

4- 4 x7+3= right the answer is -21, someone told me the answer is 10

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
8 0
4-28+3
-24+3
=-21
So yes you are correct :)
sattari [20]3 years ago
3 0
Yeah that’s the right answer
You might be interested in
Without plotting points, let M=(-2,-1), N=(3,1), M'= (0,2), and N'=(5, 4). Without using the distanceformula, show that segments
kramer

Given:

M=(x1, y1)=(-2,-1),

N=(x2, y2)=(3,1),

M'=(x3, y3)= (0,2),

N'=(x4, y4)=(5, 4).

We can prove MN and M'N' have the same length by proving that the points form the vertices of a parallelogram.

For a parallelogram, opposite sides are equal

If we prove that the quadrilateral MNN'M' forms a parallellogram, then MN and M'N' will be the oppposite sides. So, we can prove that MN=M'N'.

To prove MNN'M' is a parallelogram, we have to first prove that two pairs of opposite sides are parallel,

Slope of MN= Slope of M'N'.

Slope of MM'=NN'.

\begin{gathered} \text{Slope of MN=}\frac{y2-y1}{x2-x1} \\ =\frac{1-(-1)}{3-(-2)} \\ =\frac{2}{5} \\ \text{Slope of M'N'=}\frac{y4-y3}{x4-x3} \\ =\frac{4-2}{5-0} \\ =\frac{2}{5} \end{gathered}

Hence, slope of MN=Slope of M'N' and therefore, MN parallel to M'N'

\begin{gathered} \text{Slope of MM'=}\frac{y3-y1}{x3-x1} \\ =\frac{4-(-1)}{5-(-2)} \\ =\frac{3}{2} \\ \text{Slope of NN'=}\frac{y4-y2}{x4-x2} \\ =\frac{4-1}{5-3} \\ =\frac{3}{2} \end{gathered}

Hence, slope of MM'=Slope of NN' nd therefore, MM' parallel to NN'.

Since both pairs of opposite sides of MNN'M' are parallel, MM'N'N is a parallelogram.

Since the opposite sides are of equal length in a parallelogram, it is proved that segments MN and M'N' have the same length.

7 0
1 year ago
You are standing on top of a 50 foot cliff over looking a pond. The angle of depression from you to the pond is 47 degrees. How
Bingel [31]

Answer: 97

Step-by-step explanation: hope this is right.

7 0
3 years ago
What is the parallel slope intercept form pls help?​
malfutka [58]
<h2>Answer:</h2>

If the line is parallel to the one given, their slopes are the same, so we need to find the y-intercept, then we can determine the slope-intercept form parallel to the given line.

-1 = 4(4) + b\\\\-1 = 16 + b\\\\-17 = b

Now that we have the y-intercept, we can create the equation.

y = 4x - 17

We can prove this by graphing both lines, like so.

8 0
3 years ago
Look at this graph:
Ray Of Light [21]
You could try using photo math
7 0
3 years ago
Read 2 more answers
In ΔKLM, l = 2.4 inches, m = 4.2 inches and ∠K=159°. Find the length of k, to the nearest 10th of an inch.
ladessa [460]

Answer:

6.5

Step-by-step explanation:

DeltaMath

4 0
3 years ago
Other questions:
  • 20 PTS! Need help! Please explain! The amount of money a worker makes varies directly with the hourly rate of pay. Worker A earn
    5·2 answers
  • The sum of 4 consecutive integers is -26.What are the integers
    5·1 answer
  • Given that (x,y) = (5,15) find tan Ø. <br><br> A. 3 <br> B. 1/3 <br> C. 5 <br> D. 1/5
    11·1 answer
  • Suppose that a manufacturer is testing one of its machines to make sure that the machine is producing more than​ 97% good parts
    5·1 answer
  • The total of 8 and the product of x and 2
    10·1 answer
  • (8u+6v)(5u - Bv)?????
    12·1 answer
  • 15 POINTS FOR THE FIRST ONE TO GET THIS RIGHT! HELP!
    6·1 answer
  • True or False; In spherical geometry, there is only one equilateral triangle.
    9·1 answer
  • Which diagram matches the equation or description.
    6·1 answer
  • B) Michael has $0 in his account but makes a purchase and overdrafts his account by<br> $75
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!