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sveta [45]
3 years ago
13

Is y=7x+2 x+7y=8 parallel, perpendicular, or neither?

Mathematics
1 answer:
Murljashka [212]3 years ago
3 0
Rearrange them to slope-intercept form

y = 7x + 2

y = -(1/7) x + 8

product of their slopes is  7 * -1/7  = -1  so they are perpendicular
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If you buy 20 tickets for $6.00, how much are you paying per ticket?
andrew-mc [135]
This is a division problem.

6/20 = 0.3

Answer: You are paying $0.30 per ticket.
8 0
3 years ago
Classify the triangle.<br> obtuse<br> equiangular<br> right<br> acute
horrorfan [7]

Answer:

Acute

Step-by-step explanation:

Note the definitions:

Obtuse: At least one of the angles are greater than 90°

Equilateral: All angles are congruent & equal to 60°

Acute: All angles are less than 90°

Right: At least one angle is equal to 90°

In this case, the triangle is a D) acute, for it fits the requirement for being an acute... all angles are less than 90°.

~

4 0
3 years ago
Read 2 more answers
Kate made an 85 on her English test. Her grade on the English test was 37 points less than twice the grade on her Science test.
Irina18 [472]
The grade of her sci test was 61. First I add 37 to 85, the sum being 122. Then if you divide it in half, you get the quotien and final answer of 61
7 0
3 years ago
Read 2 more answers
Two customers went to a post office to buy postcards and large envelopes. Each postcard
astraxan [27]

The right answer is Option A.

Step-by-step explanation:

Let,

x be the postcards

y be the large envelops

According to given statement;

14x+5y=12   Eqn 1

10x+15y=24.80   Eqn 2

Multiplying Eqn 1 by 3;

3(14x+5y=12)\\42x+15y=36\ \ \ Eqn \ 3

Subtracting Eqn 2 from Eqn 3;

(42x+15y)-(10x+15y)=36-24.80\\42x+15y-10x-15y=11.20\\32x=11.20\\

Dividing both sides by 32

\frac{32x}{32}=\frac{11.20}{32}\\x=0.35

Putting x=0.35 in Eqn 1;

14(0.35)+5y=12\\4.90+5y=12\\5y=12-4.90\\5y=7.10

Dividing both sides by 5

\frac{5y}{5}=\frac{7.10}{5}\\y=1.42

Therefore, one large envelope costs $1.42

The right answer is Option A.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/9738996
  • brainly.com/question/10015690

#LearnwithBrainly

4 0
3 years ago
Answer to this ?????????
marin [14]

9= h/9

Mutiply both sides by 9

9*9= h/9*9

Cross out 9 and 9 , divide by 9 and then becomes h

9*9= 81

Answer: h= 81

3 0
3 years ago
Read 2 more answers
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