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
STALIN [3.7K]
3 years ago
8

In the isosceles triangle, find a and b if you knew the perimeter was 20x+35

Mathematics
1 answer:
Zanzabum3 years ago
3 0

Answer:

a=8

b=17

Step-by-step explanation:

Isoceles means we will have 2 congruent sides in this triangle.

So it appears we are to assume it is sitting on its base which means that other side has measurement ax+9 as well

So we have the sum of the 3 sides is the perimeter.

That means we have the equation:

(ax+9)+(ax+9)+(4x+b)=20x+35

Combine like terms:

(a+a+4)x+(9+9+b)=20x+35

(2a+4)x+(18+b)=20x+35

This implies 2a+4=20 and 18+b=35.

2a+4=20

Subtract 4 on both sides:

2a=16

Divide both sides by 2:

a=8

18+b=35

Subtract 18 on both sides:

b=17

So a=8 and b=17.

You might be interested in
Which answer describes the transformation of f(x)=log2(x−5)−2 from the parent function g(x)=log2x ? A) It is the graph of g(x) s
damaskus [11]

Answer:

It is the graph of g(x) shifted 5 units right and 2 units down.

Step-by-step explanation:

Given : f(x)=log_2(x−5)−2  

the parent function g(x)=log_2(x)

To get f(x) , 5 is subtracted from x

If we add any number with x  then we shift left

If we subtract any number from x  then we shift right

Here 5 is subtracted from x , so we shift 5 units right

Also -2  at the end

If we add any number at the end , then we shift up

if we subtract any number at the end , then we shift down

Here 2 is subtracted at the end , so we shift 2 units down

It is the graph of g(x) shifted 5 units right and 2 units down.

4 0
3 years ago
I don't know what to do ?
Yuri [45]
Enable M = Mary's age now So Mike's age is 3M 3M + 4 = 2 (M + 4) = 2M + 8 Now, subtract 2M from the two factors. then you definitely have: M + 4 = 8 or M = 4 examine: Mike is now 12. In 4 years, Mary would be 8 and Mike would be sixteen.
3 0
3 years ago
Read 2 more answers
Some students were asked what kinds of animals they have at home.
Nataly_w [17]

(a) Animals by popularity; Dogs, Cats, Others, Horses.

(b) If 250 students were interviewed, 20 students have other pets.

(c) No, it was incorrect.

Step-by-step explanation:

Step 1; We arrange the different pets in chronological order, from the highest percent to the lowest percent;

1. Dogs - 67%,

2. Cats - 20%

3. Others - 8%,

4. Horses - 1%.

None is not included in this list.

Step 2; If 250 students were interviewed, 8% of those have other pets. So we need to calculate how much 8% of 250 is.

8% of 250 = \frac{8}{100} × 250 = 0.08 × 250 = 20.

So 20 students had other pets.

Step 3; 20% of the interviewed students had cats. If 75 students had cats, we need to equate 20% to the 75 and find out how many students were actually interviewed.

20% × x = 75, 0.2 × x = 75,

x = \frac{75}{0.2} = 375.

So if 375 students were interviewed, 75 students would have cats. So the estimate of 250 students being interviewed is incorrect.

8 0
3 years ago
Could somebody help me on the 2 question please
ozzi
-20 because after the the thermometer hits zero the more negative the temperature gets the colder it is
8 0
3 years ago
Read 2 more answers
2. Which of the following shows the correct area of the figure below rounded to the nearest hundredths place.​
Lera25 [3.4K]

Answer:

the answer is 190.07 cm2

8 0
3 years ago
Other questions:
  • Negative two point five times twenty
    12·2 answers
  • Four Representations: Equations, Tables, Words,
    5·1 answer
  • The total number of f orbitals in an f subshell is
    8·1 answer
  • Find the complement of the angle shown. Find the supplement of the angle shown
    5·2 answers
  • Tiger cubs are around 2 years old when they leave their mothers. In the wild, tigers live about 11 years. About what percent of
    6·1 answer
  • Find the value of given expression
    6·2 answers
  • A birdbath is filled to the top. On Day 1, the volume of water in the bowl decreases by 7/8 cup. On Day 2, the volume in the bow
    7·1 answer
  • Solve x3= 27.<br> A = 13<br> B. x= 5.2<br> C. x=3<br> D. x=9
    13·2 answers
  • 2/3x-3/2=1<img src="https://tex.z-dn.net/?f=2%2F3x-3%2F2%3D1" id="TexFormula1" title="2/3x-3/2=1" alt="2/3x-3/2=1" align="absmid
    9·2 answers
  • Grapes cost $1.68 a pound. If you buy 2.5 pounds,how much will it cost?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!