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
lidiya [134]
3 years ago
15

Can anyone help? I don't know what I did wrong and need some help finding the answer.

Mathematics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

57.1

Step-by-step explanation:

Using cosine rule

Cos¤ = 21/25

Cos¤ = 0.84

¤ = 57.12 appropriately 57.1

You might be interested in
Please Help me! 20 pts. n i will mark you as brainliest!
Jobisdone [24]

Answer:

Length 10, Width 20, Area 200

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which point is part of the solution of the inequality y 2 12x – 11.
Papessa [141]

Answer:

Point (0,0)

Step-by-step explanation:

Given the inequality y > 12x – 11.

We will check which of the given options will be applied for the inequality

A) (1,0)

Substitute with x = 1 and y = 0

0 > 12*1 - 11

0 > 1   ⇒ Wrong

So, Point (1,0) is not part of the solution of the inequality.

B) (3,2)

Substitute with x = 3 and y = 2

2 > 12*3 - 11

0 > 25  ⇒ Wrong

So, Point (3,2) is not part of the solution of the inequality.

C) (1,1)

Substitute with x = 1 and y = 1

1 > 12*1 - 11

1 > 1   ⇒ Wrong

So, Point (1,1) is not part of the solution of the inequality.

D) (0,0)

Substitute with x = 1 and y = 0

0 > 12*0 - 11

0 > -11  ⇒ True

So, Point (0,0) is part of the solution of the inequality.

Also, see the attached figure which represents the given inequality

The shaded area represents the solution of the inequality, and we can note that point (0,0) is part of the solution of the inequality

5 0
3 years ago
What is the conjugate?
nata0808 [166]
A conjuate is real numbers like the conjuate of x and y would be a real number
7 0
3 years ago
A rectangular painting measures 15 inches by 18 inches and contains a frame of uniform width around the four edges. The perimete
vfiekz [6]

Answer:

3 inches

Step-by-step explanation:

Lenght = 18 inches

Width =15 inches

Perimeter of the rectangular painting and frame = 90 inches

Let X be the width of the frame

The width of the framed picture = 15 + 2x

The length of the framed picture = 18 + 2x

Perimeter = 2 (L + W)

90 = 2(15 + 2x + 18+ 2x)

90 = 2(33 + 4x)

90 = 66 + 8x

8x = 90 - 66

8x = 24

x = 24/8

x = 3 inches

the width of the frame is 3 inches

5 0
3 years ago
X-3y=2 what is the slope
Brums [2.3K]
1/3 is the slope.
x-3y=2
-3y=-x+2
y=(1/3)x+2/3
3 0
3 years ago
Other questions:
  • 200% copy of a photograph. The original photo has a width of 5 in. What width will the copy be?
    9·1 answer
  • I need help on this math problem.!!
    15·2 answers
  • Write the following expression in simplest form: 4[3m + 5] + 9m + 3
    12·1 answer
  • HELP ME PLEASE I CAN'T DO MATH!!!!!!
    8·2 answers
  • Two chords intersect inside a circle. the lengths of the segment of one chord are 4 and 6. the lengths of the segments of the ot
    5·2 answers
  • The current flowing through an electric circuit is the derivative of the charge as a function of time. If the charge q is given
    12·2 answers
  • Kendra flips a fair coin two times. What is the probability that she will flip tails both times?
    6·1 answer
  • Anna is making a gallon of iced tea, which requires 6 cups of iced tea mix. She only has 1/4 - cup measuring cup. How many 1/4 s
    9·1 answer
  • Look at each problem. Then decide if it is an equation or an expression. Check all the equations. A number decreased by three is
    14·2 answers
  • Line A passes through the points (0, -5) and 12,1. Line B passes through the points (0, -4) and (10, 1). write an equation for e
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!