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
Orlov [11]
1 year ago
13

10POINTS !!

Mathematics
2 answers:
emmasim [6.3K]1 year ago
3 0

Step-by-step explanation:

<h3> length </h3>

a + b = 18cm

a = 18 - b

<h3> Area </h3>

a² + b² = 212cm²

(18-b)² + b² = 212

324 - 36b + b² + b² = 212

2b² - 36b + 112 = 0

b² - 18b + 56 = 0

b² - 4b - 14b + 56 = 0

b(b-4) -14(b - 4) = 0

(b-4) (b-14) = 0

b-4 = 0 OR. b-14 = 0

b = 4 cm b = 14 cm

so 4cm < 14cm

so , length of a side of the smaller square is 4cm .......

And , large square's = 14cm .....

Dennis_Churaev [7]1 year ago
3 0

Answer:

square one sides = 14, 14

square 2 sides = 4, 4

14 + 4 = 18

14 x 14 + 4 x 4 = 212

Step-by-step explanation:

14 x 14 + 4 x 4

this is the area of the 2 being added

the sides lengths are 14 and 4

You might be interested in
Prompt Use the applet to select 20 different random samples of 100 part-time college students. For each sample the applet calcul
Ket [755]

Answer:

Yes, we can expect the given result

Step-by-step explanation:

The population proportion P = 0.60

the 95% confidence interval is ( 0.56, 0.76)

The 95% confidence that the true population proportion lies between the interval ( 0.56, 0.76)

Only 5% of 20 random samples i.e only 1 sample is not contain in the population proportion.

6 0
2 years ago
Please solve this with steps shown. I’ll give u brainliest<br><br> log(lx-1l)=3
Natalka [10]

Answer: x=1001, -999

Step-by-step explanation:

I hope that this helps sum

3 0
3 years ago
The graph of the function showing the path of a soccer ball thrown by a goalie in a video game, f(x) = –0.05x2 + 2.5x + 5.2, is
Tju [1.3M]

Answer:

The correct option is 4.

Step-by-step explanation:

The given function is

f(x)=-0.05x^2+2.5x+5.2

Where f(x) is height of the ball and x is the distance.

It is a polynomial function with degree 2. All polynomial functions are defined for all real numbers, therefore the mathematical domain of the function is all real numbers.

-\infty

Factorize the given function.

f(x)=-0.05(x^2-50x-104)

f(x)=-0.05(x^2-50x-104)

f(x)=-0.05(x^2-52x+2x-104)

f(x)=-0.05(x(x-52)+2(x-52))

f(x) = -0.05 (x - 52) (x + 2)

Put f(x)=0 to find the x intercepts.

0 = -0.05 (x - 52) (x + 2)

Equate each factor equal to 0.

x=52,-2

Therefore at x=52 and -2, the graph of f(x) intersects x-axis. Before x=-2 and after x=52 the values of f(x) is negative. Height cannot be negative, therefore reasonable domain is lie between -2 to 52.

Distance cannot be negative, therefore the reasonable domain must be positive.

0\leq x\leq 52

Therefore the reasonable domain is 0\leq x\leq 52 and option 4 is correct.

6 0
2 years ago
Julie was a lifeguard during the summer. She earned a total of $2,176. She was paid $68 per day she worked. How many days did Ju
creativ13 [48]

Answer:

32

Step-by-step explanation:

To answer this question, you have to divide 2,176 by 68.

7 0
3 years ago
Read 2 more answers
A car travels 2.5 hours in a northerly Direction for 300 KM. what is the speed and velocity
STatiana [176]
Speed is distance traveled per block of time. As an equation, this is 
Speed = distance/time

In your problem, the given distance is 300km, and the time is 2.5 hours.
Plugging into the equation,
Speed = 300km / 2.5 h
Speed = 120 km/h

Velocity is speed <em>and</em> direction. 
The velocity would be 120 km/h north.
4 0
2 years ago
Other questions:
  • Y=3*?<br> What is the inverse
    10·1 answer
  • Which list of ordered pairs represents solutions to x + y = 2 ?
    8·2 answers
  • Multiply powers with the same ________
    7·1 answer
  • The radius of a sphere is 6 units.
    11·1 answer
  • Imma just leave this here imma do brainlyest
    12·1 answer
  • A picture shows the net of the lateral surface of the cone. Which statement about this cone is NOT true?
    14·1 answer
  • This is the question​
    5·1 answer
  • What is the range of the given function ? <br> {(-2,0),(-4,-3),(2,-9),(0,5),(-5,7)}
    10·1 answer
  • Find the value of x.
    15·1 answer
  • Plz help with this question.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!