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
serious [3.7K]
3 years ago
9

Math need help please

Mathematics
1 answer:
Nutka1998 [239]3 years ago
6 0

Answer:

same side interior

Step-by-step explanation:

You might be interested in
I need help with the area of this
Anarel [89]

Answer:

14 inches

Step-by-step explanation:

If you use the formula shown and calculate 1/2 (B x H) you will get 14 in. The base multiplied by the height is 28, and when divided in half, it is 14 in.

7 0
3 years ago
Pre-Calculus - Systems of Equations with 3 Variables please show work/steps
inessss [21]

Answer:

x = 10 , y = -7 , z = 1

Step-by-step explanation:

Solve the following system:

{x - 3 z = 7 | (equation 1)

2 x + y - 2 z = 11 | (equation 2)

-x - 2 y + 9 z = 13 | (equation 3)

Swap equation 1 with equation 2:

{2 x + y - 2 z = 11 | (equation 1)

x + 0 y - 3 z = 7 | (equation 2)

-x - 2 y + 9 z = 13 | (equation 3)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + y - 2 z = 11 | (equation 1)

0 x - y/2 - 2 z = 3/2 | (equation 2)

-x - 2 y + 9 z = 13 | (equation 3)

Multiply equation 2 by 2:

{2 x + y - 2 z = 11 | (equation 1)

0 x - y - 4 z = 3 | (equation 2)

-x - 2 y + 9 z = 13 | (equation 3)

Add 1/2 × (equation 1) to equation 3:

{2 x + y - 2 z = 11 | (equation 1)

0 x - y - 4 z = 3 | (equation 2)

0 x - (3 y)/2 + 8 z = 37/2 | (equation 3)

Multiply equation 3 by 2:

{2 x + y - 2 z = 11 | (equation 1)

0 x - y - 4 z = 3 | (equation 2)

0 x - 3 y + 16 z = 37 | (equation 3)

Swap equation 2 with equation 3:

{2 x + y - 2 z = 11 | (equation 1)

0 x - 3 y + 16 z = 37 | (equation 2)

0 x - y - 4 z = 3 | (equation 3)

Subtract 1/3 × (equation 2) from equation 3:

{2 x + y - 2 z = 11 | (equation 1)

0 x - 3 y + 16 z = 37 | (equation 2)

0 x+0 y - (28 z)/3 = (-28)/3 | (equation 3)

Multiply equation 3 by -3/28:

{2 x + y - 2 z = 11 | (equation 1)

0 x - 3 y + 16 z = 37 | (equation 2)

0 x+0 y+z = 1 | (equation 3)

Subtract 16 × (equation 3) from equation 2:

{2 x + y - 2 z = 11 | (equation 1)

0 x - 3 y+0 z = 21 | (equation 2)

0 x+0 y+z = 1 | (equation 3)

Divide equation 2 by -3:

{2 x + y - 2 z = 11 | (equation 1)

0 x+y+0 z = -7 | (equation 2)

0 x+0 y+z = 1 | (equation 3)

Subtract equation 2 from equation 1:

{2 x + 0 y - 2 z = 18 | (equation 1)

0 x+y+0 z = -7 | (equation 2)

0 x+0 y+z = 1 | (equation 3)

Add 2 × (equation 3) to equation 1:

{2 x+0 y+0 z = 20 | (equation 1)

0 x+y+0 z = -7 | (equation 2)

0 x+0 y+z = 1 | (equation 3)

Divide equation 1 by 2:

{x+0 y+0 z = 10 | (equation 1)

0 x+y+0 z = -7 | (equation 2)

0 x+0 y+z = 1 | (equation 3)

Collect results:

Answer: {x = 10 , y = -7 , z = 1

3 0
3 years ago
Choose the graph which represents the solution to the inequality:<br> 3x + 8 ≥ 11
Ede4ka [16]

Answer:

X>=1 is the answer

Step-by-step explanation:

then

The graphic is A) or whom is be more or equal to one in the graphic. Right side of the graphic.

Best regards

4 0
3 years ago
Read 2 more answers
Is the following number rational or irrational?<br> 9.0<br> A: rational<br> B: Irrational
Lelu [443]

Answer:

Rational

Explanation:

9 is a Rational Number

5 0
2 years ago
A pen costs $.59. How much would a dozen pens cost?
irinina [24]
Y= $0.59(x)
y= $0.59(12)
y=?

y is the total
x is the amount of pen

so you multiply the cost of each pen with the amount of pens
$0.59 times 12
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is 4 feet turned into inches
    12·2 answers
  • There were a total of 800 novels and non-fiction books at a book shop. 2/5 of these books were novels. Each novel was priced at
    8·1 answer
  • Rewrite each expression more simply: 3y + 8y
    14·1 answer
  • Correct answers only please!
    5·1 answer
  • 3 times the sum of x and y plus 5 times the difference of 2x and y
    9·2 answers
  • If $9500 is invested at an interest rate of 9%, compounded continuously, determine the balance in the account after 3 years. Use
    5·1 answer
  • (0,1) (1,3) (2,9) (3,27) is the relationship linear,exponential, or neither
    7·1 answer
  • alec is climbing a 14 foot ladder where the rungs are 3/4 of a foot apart. there is one foot of space on each end of the ladder
    15·1 answer
  • This is urgent please help asap!!!!
    7·2 answers
  • Determine the constant different in this numeric pattern:5;9;13;17;21​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!