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
astra-53 [7]
3 years ago
7

Please help 18 MATH PROBLEM

Mathematics
2 answers:
evablogger [386]3 years ago
4 0
I would say 169 but I’m not positive
weqwewe [10]3 years ago
3 0

Answer:

<h3>The answer is 13 cm</h3>

Step-by-step explanation:

<h3>Area(A)= 169cm</h3><h3>Length (L)=?</h3><h3>Now,</h3><h3>A=L^2</h3><h3>or, 169=L^2</h3><h3>or, √169=L</h3><h3>. L=13cm</h3>
You might be interested in
sarita used 54 oz. of apples to make an apple pie. how many pounds and ounces of apples did sarita use?
sergejj [24]

The highest we can go is 48 oz
3 lbs is 48 oz
54-48= 6
So the answer is
Answer: 3 lbs and 6 oz 

Hope i helped <3




5 0
3 years ago
Subtract: (x^2 - 8x + 5)-(-3x^2 + 5x-9)
Marianna [84]

Answer: 4x^2 -13x + 14

Step-by-step explanation:

(x^2 - 8x + 5)-(-3x^2 + 5x-9)

Subtract -3x^2 from x^2

(4x^2 - 8x + 5)-(5x-9)

Subtract 5x from -8x

(4x^2 -13x + 5)-(-9)

Subtract 9 from 5

4x^2 -13x + 14

7 0
3 years ago
Rex, Paulo, and Ben are standing on shore watching for dolphins. Paulo sees one surface directly in front of him about a hundred
Ksivusya [100]

1. m\angle BAC=m\angle CAD,\ m\angle ACB=m\angle ADC=90^{\circ}, then m\angle ABC=m\angle ACD and triangles ADC and ACB are similar by AAA theorem.


2. The ratio of the corresponding sides of similar triangles is constant, so


\dfrac{AC}{AB}= \dfrac{AD}{AC}.


3. Knowing lengths you could state that \dfrac{b}{c}= \dfrac{e}{b}.


4. This ratio is equivalent to b^2=ce.


5. m\angle ABC=m\angle CBD,\ m\angle ACB=m\angle CDB=90^{\circ}, then m\angle BAC=m\angle BCD and triangles BDC and BCA are similar by AAA theorem.


6. The ratio of the corresponding sides of similar triangles is constant, so


\dfrac{BC}{BD}= \dfrac{AB}{BC}.


7. Knowing lengths you could state that \dfrac{a}{d}= \dfrac{c}{a}.


8. This ratio is equivalent to a^2=cd.


9. Now add results of parts 4 and 8:


b^2+a^2=ce+cd.


10. c is common factor, then:


b^2+a^2=c(e+d).


11. Since e+d=c you have a^2+b^2=c\cdot c=c^2.



7 0
3 years ago
Read 2 more answers
if you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?
Romashka-Z-Leto [24]

Answer:

see below

Step-by-step explanation:

2x+8y=12 3x-8y=11

If we have to solve by substitution, Take the first equation and divide by 2

2x/2 + 8y/2 =12/2

x+4y = 6

Then subtract 4y from each side

x = 6 -4y

Then substitute this into the second equation

This is best solved by elimination

2x+8y=12

3x-8y=11

----------------

5x = 36

x = 36/5

6 0
3 years ago
i have 30 coins. some of them are dimes, and some of them are quarters. in total, i have $4.05. how many of each coin do i have?
emmainna [20.7K]

Answer:

23 dimes and 7 quarters

Step-by-step explanation:

The least amount of money using the most coins are 30 dimes ($3.00)

4 0
3 years ago
Read 2 more answers
Other questions:
  • Rewrite the incorrect step so that it is correct , then simplify.<br> Please help asap :) !
    6·1 answer
  • 36 + 120 : 12-63<br> What's this answer?
    7·1 answer
  • Use the chart to multiply the binomial by the trinomial. Which polynomial is the correct product?
    6·2 answers
  • PLEASE HELP ME REALLY QUICK
    7·2 answers
  • Cory brings five 1-gallon jugs of juice to serve during parent night at his school. If the paper cups he is using for drinks can
    6·2 answers
  • Please help me guys : please please.You put a yam in the oven after 45 minutes you take it out let f (t ) be the temperature of
    8·1 answer
  • What will be the price of gas if there is a 27% increase from $2.67 per gallon?​
    8·1 answer
  • Convert 30 ft per s to mi per min.<br><br> 5280 ft = 1 mi<br><br> Round to nearest hundredth.
    14·1 answer
  • An adventure company wants to run a zip line from the top of one building that is 95 feet tall to the top of another building th
    5·1 answer
  • Solve the inequalities by graphing. Identify the graph that shows the following equations.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!