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
exis [7]
3 years ago
11

I dont know what the answer is help please?

Mathematics
1 answer:
Brrunno [24]3 years ago
5 0

Answer:

its A

Step-by-step explanation:

You might be interested in
Which could be the dimensions of a rectangular prism whose surface area is less than 160 square feet? Select two options.
Sloan [31]
Try to do pathegoram theorem and you will find your answer
8 0
3 years ago
Read 2 more answers
PLSSSSSSSSSSSSSSSSSSSS HELPPPPPPPPPPPPPPPPPPP RNNNNNNNNNNNNNNNNN
astra-53 [7]
The correct answer the last equation D!!
8 0
3 years ago
6x + 5y = 7 and 2x + 3y = 3
ra1l [238]
6x + 5y = 7
-6x - 9y = -9

-4y = -2

y = 1/2 or 0.5

2x + 3(1/2) = 3
2x + 1.5 = 3
2x = 1.5

x = 0.75
4 0
4 years ago
12.65-(-6)(0.2)+1=?<br><br> Please help i just need the work but im so lost help me.
s344n2d4d5 [400]

Answer:

14.85

Step-by-step explanation:

The two negatives at the beginning cancel eachother out so it becomes 12.65 +6 but first you have to multiply the 6 by 0.2 which you get 1.2 and you add 1 and get 14.85

^^^^^^^^^^^

12.65+1.2+1

5 0
3 years ago
Una piscina rectangular de 15 m de largo por 9m de ancho está rodeada por un camino de cemento de ancho uniforme. ¿Si el área de
malfutka [58]

Answer:

El ancho del camino es 1.5 m.

Step-by-step explanation:

Una piscina rectangular posee 15 m de largo por 9 m de ancho.

El área de un rectángulo es igual a la base por la altura. Es decir, lado mayor por lado menor. Entonces el área de la piscina es 15 m* 9 m= 135 m²

La piscina está rodeada por un camino de cemento de ancho uniforme, al cual se denomina x y estará en unidades de metros (m). Entonces el largo de la piscina sumado al ancho a ambos lados de la piscina será 15 m + 2*x, mientras que el ancho de la piscina sumado al largo a ambos lados de la piscina es 9 m + 2*x. Entonces este área se puede expresar como

(15 m+2*x)*(9 m+ 2*x)

Entonces al área de la piscina sumado al camino se le resta el área de la piscina y da como resultado el área del camino, cuyo valor es 81 m²:

El área total - área de la piscina =  área del camino

(15 m +2*x)*(9 m+ 2*x) - 135 m²= 81 m²

Resolviendo:

15*9 m²+15*2*x + 9*2*x + 2*x*2*x - 135 m²= 81 m²

135 m² + 30*x + 18*x + 4*x² - 135 m²= 81 m²

48*x + 4*x² = 81 m²

48*x + 4*x² - 81 m²= 0

Siendo una ecuación cuadrática donde a= 4, b= 48 y c= -81, entonces:

\frac{-48+-\sqrt{48^{2}-4*4*(-81) } }{2*4}

Resolviendo:

\frac{-48+\sqrt{48^{2}-4*4*(-81) } }{2*4}= 1.5

\frac{-48-\sqrt{48^{2}-4*4*(-81) } }{2*4}= -13.5

Como las distancias solo pueden ser positivas, entonces <u><em>el ancho del camino es 1.5 m.</em></u>

En la imagen adjunta se puede observar un gráfico de la piscina más el camino

5 0
3 years ago
Other questions:
  • The sum of the digits of a two digit number is 9. If 27 is subtracted from the
    7·1 answer
  • sandy has 200 dollars in her bank account if she writes checks for 19.98 what expression describes the change in her bank accoun
    9·1 answer
  • The Brown's are renting a home and are planning to set up their trash service. They are considering two local companies. Company
    13·1 answer
  • How many integers at between 15 and 63?
    7·2 answers
  • Find the square. (4x – 6y3)2
    11·1 answer
  • A cylinder is 20 inches long and has a diameter of 10 inches. What is the approximate volume of the cylinder?
    10·1 answer
  • 1000000+200000=?<br><br> fun for me
    12·1 answer
  • Help quick!!
    6·2 answers
  • Jan loves pillows and decides to make throw-pillows for her new sofa and bed. The pillows will be in the
    9·1 answer
  • Can someone please help me solve this problem?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!