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
tigry1 [53]
3 years ago
8

-3 – 5x - 5y + 8x + 7y + 8​

Mathematics
1 answer:
Scilla [17]3 years ago
7 0

Answer: -14y

Step-by-step explanation:

You might be interested in
Becca has saved 25% of the money that she needs to buy a new tennis racket. If she has saved $21 jow much money does the tennis
nexus9112 [7]
Let x be the entire portion of the money Becca needs to save to buy a new tennis racket.

So, 0.25x=$21

x=$21/0.25
x=$84

Thus, the total amount she needs to save is $84. Now, we'll deduct 25 from 84 to get the 75 percent or the remaining amount she has to save.

$84-$21=$63

The answer is $63.
6 0
3 years ago
Read 2 more answers
Find, correct to the nearest degree, the three angles of the triangle with the given vertices.
Leokris [45]

Answer:

angle CAB = 113.8 degree

angle ABC = 35.6 degree

angle BCA = 30.6 degree

Step-by-step explanation:

Given data:

A(1, 0, −1),

B(5, −3, 0),

C(1, 5, 2)

calculate the length of side by using the distance formula

so

AB = (5,-3,0) - (1,0,-1) = (4,-3,1)

AC= (1,5,2) - (1,0,-1) = (0,5,3)

|AB|

|AC| =\sqrt {(0 + 5^2+3^2)} = \sqrt{34}

From following formula, calculate the angle between the two side i.e Ab and AC

AB.AC = |AB|*|AC| cos ∠CAB

(4,-3,1).(0,5,3)

4*0 -3*5 +1*3

-12 =

cos ∠CAB = - 0.404

angle CAB = 113.8 degree

BA =B- A =  (1,0,-1) - (5,-3,0) = (-4,3,-1)

BC = (1,5,2)-(5,-3,0) = (-4,8,2)

|BA| = \sqrt{(26)}

|BC| = \sqrt {(4^2 + 8^2 + 2^2)} = \sqrt{(84)}

BA.BC = |BA|*|BC|* cosABC

(-4,3,-1).(-4,8,2) =\sqrt{(26)} * \sqrt{(84)} *cosABC

16+24-2

cos ∠ABC = 0.813

angle ABC = 35.6 degree

we know sum of three angle in a traingle is 180 degree hence

sum of all three angle = 180

angle BCA + 35.6 + 113.8 = 180

angle BCA = 30.6 degree

7 0
3 years ago
Need Help Answering this question.?!
sladkih [1.3K]

Answer:

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is YZ?<br><br> Enter your answer as a decimal in the box.
maks197457 [2]

Answer:

YZ = 18.4 in

Step-by-step explanation:

The midsegment YZ is half the length of the third side VX , then

YZ = \frac{1}{2} × 36.4 = 18.2

8 0
3 years ago
Read 2 more answers
M bisects QP, and QP = 27.4. Find QM.
KonstantinChe [14]

Answer:

13.7

Step-by-step explanation:

All you need to do is divide by 2, hope this helped!

4 0
3 years ago
Read 2 more answers
Other questions:
  • Three companies sell their apple juice in different sized bottles jada is calculating the unit prices of each bottle and will co
    11·3 answers
  • Lamar is rolling a die and recording what number he gets each time. He rolls the die 250 times and records his results in the ta
    14·2 answers
  • What is 620 divided by 11
    11·2 answers
  • What is the value of x/3y, when x = 18 and y = 3? A. 3/18 B. 2 C. 3 D. 6
    13·1 answer
  • Two inches equal approximately how many centimeters?
    13·2 answers
  • Who do yo write 6,007,200 in two other forms
    15·1 answer
  • What is the solution of 5=5
    9·1 answer
  • Please help!! I forget how to do these :[
    10·2 answers
  • Percent decrease from 20 to 11
    12·1 answer
  • Help please. 7th grade math. Need halo fast!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!