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
guajiro [1.7K]
3 years ago
15

Please help due ASAP Show workings please

Mathematics
1 answer:
Nostrana [21]3 years ago
5 0

Step-by-step explanation:

I don't know if this is the right way to so it, but I would do it like this

since a triangle has 180 degrees, the angles all have to add up to 180

So 180 = a + b + c

we already know a, its 95

So 180 = 95 + b + c

now we know the equation for b, so we'll just put it there instead of the b, and since the angles are the same, we should put it instead of c too

180 = 95 + (4x-15) + (4x-15)

now subtract 95 from both sides

85 = (4x-15) + (4x-15)

add the xs and numbers together

85 = 8x - 30

now add the 30 to both sides

115 = 8x

divide by 8

your x is 14 3/8 or 14.375 or 115/8

that's not your angle, that's your x

You might be interested in
Triangle is 18 in high 36 in across ....how much fabric to make 5
Korolek [52]

Answer:

A=324

Step-by-step explanation:

formual to Solve for area

A=h*b/2 so 18*36/2= a = 324

3 0
3 years ago
Norm has $15,000 to deposit. His daughter is a junior in high school and plans to go to college. Recommend the best way for Norm
Aloiza [94]
<span>The best way for Norm to store his money is through C. A money market account paying 3.5% interest, renewable for three-month commitments. Even though a four-year CD offers a higher interest at 4.8%, the fact that there is a substantial penalty for early withdrawal is a negative factor for Norm. His daughter needs the money after 2 years since she is already a junior in high school.</span>
8 0
3 years ago
Read 2 more answers
A triangle has side lengths of 9 in, 13 in, and 20 in. What is the measurement of this triangle’s largest angle?
zvonat [6]
1. Given any triangle ABC with sides BC=a, AC=b and AB=c, the following are true :

      i) the larger the angle, the larger the side in front of it, and the other way around as well. (Sine Law) Let a=20 in, then the largest angle is angle A.

       ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:

       a^{2}=b ^{2}+c ^{2}-2bc(cosA)

2. 

20^{2}=9 ^{2}+13 ^{2}-2*9*13(cosA)&#10;&#10;400=81+169-234(cosA)   150=-234(cosA)&#10;&#10;cosA=150/-234= -0.641

3. m(A) = Arccos(-0.641)≈130°, 

4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc
4 0
3 years ago
Read 2 more answers
What is four fifths equivalent to
skad [1K]

Answer:

8/10 or 16/20

Step-by-step explanation:

6 0
3 years ago
translate this sentence into an equation. 54 is the product of Rita savings and 3. Use the variable r to represent Rita savings.
Sphinxa [80]
54 = 3r. ABC DEFGHIJKLNOPQRSTUVWXYZ
8 0
3 years ago
Other questions:
  • Michaela is planning a pizza party for 48 people. she has $200 to buy pizza and soda for the party. Each 12-pack of soda can cos
    6·2 answers
  • 7. Given: OM = ER, ME = RO<br> Prove: ZM = ZR
    13·1 answer
  • Please solve this ..................​
    15·1 answer
  • What are the coordinates of the center of a circle whose equation is (x + 7)2 + (y – 5)2 = 16?
    15·1 answer
  • Desmond made a proportional copy of a figure by multiplying each side length by 3/2. Drag numbers to complete the table
    8·2 answers
  • How do i use properties of exponents
    15·1 answer
  • 2/3x - 1/3y = 2 <br><br> what’s the answer?
    12·2 answers
  • Use an area model to find 1/3 of 3/5 please someone quick!!
    5·1 answer
  • Simplify (5+11i) - (16-4i) +9i.
    12·2 answers
  • What are the factors of 64.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!