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
AysviL [449]
3 years ago
7

Suppose Đ1 and Đ2 are known to be complementary. If mÐ1 = 20, then mÐ2 =

Mathematics
1 answer:
juin [17]3 years ago
6 0

Answer:

70

Step-by-step explanation:

complementary angles are 2 angles that add up to 90, the first angle is already 20 so just subtract 90-20 to find other angle

You might be interested in
with Judy jogging north and Jackie jogging west (on straight roads). When Jackie is 1 mile farther fro m the intersection than J
miskamm [114]
Let the distance of Judy from intersection is x and distance of Jackie from intersection is y.

We convert the given information to equations, step by step.

Point 1: When Jackie is 1 mile farther from the intersection than Judy.

This means y is 1 mile more than x.

So,

y = 1 + x

Point 2: The distance between them is 2 miles more than Judy’s distance from the intersection. 

Distance between is x+ y.

So, x+y is 2 miles more than y.

x+y = y + 2
⇒
x = 2

From point 1 we have:

y = 1 + x = 1+ 2 = 3

So,

Distance of Judy from intersection is 2 miles and distance of Jackie from intersection is 3 miles.
4 0
3 years ago
Simplify the midpoint of PR.<br> Q (2b, 2c)<br> R (2a+2b, 2c)<br> Pl(0,0)<br> S (2a, 0)
Tomtit [17]

Answer:

The midpoint of PR is;

(a + b, c)

Step-by-step explanation:

Here, we want to get the coordinates of the midpoint of PR

To get these, we make use of the midpoint formula

Mathematically, that will be;

(x,y) = (x1+y1)/2, (x2+y2)/2

(x1,y1) = (0,0)

(x2,y2) = (2a+2b, 2c)

The midpoint is thus;

(2a+2b)/2 , 2c/2

= (a + b, c )

4 0
3 years ago
What is the area of a triangle with vertices (1,0) (5,0) (3,4)
Aleksandr-060686 [28]

Answer:

The area of the triangle is of 8 units of area.

Step-by-step explanation:

Answer:

The area of the triangle is of 21 units of area.

Step-by-step explanation:

The area of a triangle with three vertices (x_1,y_1),(x_2,y_2),(x_3,y_3) is given by the determinant of the following matrix:

A = \pm 0.5 \left|\begin{array}{ccc}x_1&y_1&1\\x_2&y_2&1\\1_3&y_3&1\end{array}\right|

In this question:

Vertices (1,0) (5,0) (3,4). So

A = \pm 0.5 \left|\begin{array}{ccc}1&0&1\\5&0&1\\3&4&1\end{array}\right|

A = \pm 0.5(1*0*1+0*1*3+1*5*4-1*0*3-0*5*1-1*1*4)

A = \pm 0.5*(20-4)

A = \pm 0.5*16 = 8

The area of the triangle is of 8 units of area.

3 0
3 years ago
What slope would make the lines<br> parallel?<br> y = -3x + 9<br> y = [?]x + 4
Vladimir79 [104]

Answer:

- 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 9 ← is in slope- intercept form

with slope m = - 3

Parallel lines have equal slopes, thus

y = - 3x + 4 ← is the equation of a parallel line

4 0
3 years ago
A farmer planted 70 packets of lettuce and 110 packets of pumpkin
storchak [24]

Answer:

7:11

Step-by-step explanation:

You place the numbers in the order given.

70:110

Then reduce it to the lowest term. In this case by 10.

70 ÷10=7

110÷10=11Therefore, the answe is

7:11

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following points is collinear with (2, 1) and (3, 3)?
    6·1 answer
  • Delany can run 1 1/2 of a mile at a rate 16 minutes and 30 seconds. At this rate how many minutes will it take him to run one mi
    11·1 answer
  • A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
    12·1 answer
  • What is 8x cubed y to the second power -7x squared y + 8x+4 -6x cubed y squared + 2x squared y + 4x squared y -3x +5
    8·1 answer
  • Which of the following is the net of a cone?
    14·1 answer
  • the cost of tuition at a local college is $10,000 and increases 4% each year.what is the cost of tuition after 5 years?
    12·1 answer
  • Need help on these ASAP
    13·1 answer
  • What two numbers have a product of 110 and a sum of -21?
    7·1 answer
  • What is the equation of the line –3x–2y=30 in slope-intercept form?
    7·2 answers
  • What is 5 times 1? I learned this a long time ago but I forgot.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!