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zmey [24]
3 years ago
6

Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inc

hes? Select three options.. A right rectangular prism with length 15 inches, width of 8 inches, and height of 6 inches. A cross section parallel to the base is a rectangle measuring 15 inches by 8 inches. A cross section parallel to the base is a rectangle measuring 15 inches by 6 inches. A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches. A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 4 inches by 15 inches. A cross section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches. i will give brainly.
Mathematics
2 answers:
lbvjy [14]3 years ago
8 0

I'm pretty sure it's:

A right rectangular prism with length 15 inches, width of 8 inches, and height of 6 inches.

A cross section parallel to the base is a rectangle measuring 15 inches by 8 inches

A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches

Just visualize the rectangle

Anna35 [415]3 years ago
4 0

Answer:

A cross section parallel to the base is a rectangle measuring 15 inches by 8 inches

A cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches.

A cross section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches.

Step-by-step explanation:

I took the quiz

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A rectangle has the length of 22 inches less than 7 times the width. If the area of the rectangle is 3197 square inches, find th
Nikolay [14]

The length of rectangle is 139 inches

Solution:

Given that, area of the rectangle is 3197 square inches

Let "L" be the length of rectangle and "W" be the width of rectangle

Also given that rectangle has the length of 22 inches less than 7 times the width

Length = 7 times width - 22

L = 7W - 22

<em><u>The area of rectangle is given as:</u></em>

\text {Area of rectangle }=\text { length } \times \text { width }

Substituting the values we get,

\begin{array}{l}{3197=(7 W-22)(W)} \\\\ {3197=7 W^{2}-22 W} \\\\ {7 W^{2}-22 W-3197=0}\end{array}

On solving the above quadratic equation using quadratic formula,

\text {For the quadratic equation } a x^{2}+b x+c=0 \text { where } a \neq 0

x=\frac{-b \pm \sqrt{\left(b^{2}-4 a c\right)}}{2 a}

\begin{array}{l}{\text {Here in } 7 \mathrm{W}^{2}-22 \mathrm{W}-3197=0} \\\\ {a=7 ; b=-22 ; c=-3197}\end{array}

Substituting in above quadratic formula,

\begin{array}{l}{W=\frac{-(-22) \pm \sqrt{\left((-22)^{2}-4(7)(-3197)\right)}}{2 \times 7}} \\\\ {W=\frac{22 \pm \sqrt{90000}}{14}=\frac{22 \pm 300}{14}} \\\\ {W=\frac{22+300}{14} \text { or } W=\frac{22-300}{14}} \\\\ {W=23 \text { or } W=-19.85}\end{array}

Since width of rectangle cannot be negative, ignore negative value of "W"

So width W = 23 inches

Length L = 7W - 22 = 7(23) - 22 = 139 inches

Thus length of rectangle is 139 inches

8 0
4 years ago
Find the value of y.
Ratling [72]

Answer:

61 degrees

Step-by-step explanation:

Since one of the sides is 102, the opposite one will be the same.

so,

102+102+95

= 299

The total is 360 degrees

360-299

= 61 degrees

pls mark me brainliestt :))

4 0
3 years ago
Contesta si las siguientes proposiciones son falsas F o verdaderas V, colocando la letra que corresponda en el paréntesis. 1. La
AlexFokin [52]

Los valores de las proposiciones son:

  • 1) Falso
  • 2) Falso
  • 3) Verdadero
  • 4) Falso
  • 5) Verdadero
  • 6) Verdadero
  • 7) Falso
  • 8) Falso
  • 9) Falso
  • 10) Falso.

<h3>Analizemos las proposiciones.</h3>

Analizaremos cada proposicion para ver si esta falsa o verdadera.

1) "La recta está formada por un número finito de puntos."

Esto es falso, una recta esta formada por infinitos puntos. Si usaramos un numero finito de puntos, entonces tendriamos lugares donde la recta se corta.

2) " La magnitud de un ángulo depende de la longitud de sus lados."

Falso, el largo de los lados no tiene ninguna relación con la magnitud del angulo.

3) "Un rayo y una semirrecta son el mismo objeto geométrico."

Verdadero, ambos hacen referencia a una linea que tiene comienzo pero no tiene final.

4) "Un segmento tiene mayor longitud que un rayo"

Falso, un segmento tiene longitud finita y un rayo tiene longitud infinita.

5) "Por dos puntos solo se puede trazar una recta."

Verdadero, para cualquier par de puntos hay una sola recta que los conecta.

6) " La recta y el plano están formados por puntos."

Verdadero

7) "Por tres puntos cualesquiera, solo puede trazarse un plano."

Falso, segun cual par de puntos utilizemos para definir la recta, obtendremos un plano diferente.

8) "Por cuatro puntos cualesquiera solo puede trazarse un plano."

Falso, igual que antes.

9) "Si dos rectas se cruzan, forman 2 ángulos. "

Falso, si haces el dibujo, podras ver que se forman 4 angulos.

10) "La intersección de dos planos es un punto. ( )"

Falso, la intersección de dos planos es una linea.

Sí quieres aprender mas sobre geometría, puedes leer:

brainly.com/question/24784999

7 0
2 years ago
Which equation shows the correct relationship between the measures of the angles of the two triangles? (1 point)
ale4655 [162]

Answer:

The measure of angle BCA = The measure of angle C prime A prime B prime

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP ASAP!
anyanavicka [17]

Answer:

2= 4 1/6

Step-by-step explanation:

draw the diagram and extend BC to D

draw AD

use the Pythagorean Theorem with triangle ADC

call AD "h"

call DC "x"

h2+x2=102

now use the Pythagorean Theorem with triangle ADB

AD=h, AB=16, DB=(x+9)

h^2+(x+9)^2=16^2

from the first equation get h^2=10^2-x^2

from the second equation get h^2=16^2-(x+9)^2

set the two right sides equal to each other because they both equal h2

10^2-x^2=16^2-(x+9)^2

100-x^2=256-x^2-18x-81

cancel -x2 from both sides

100=256-18x-81

100=175-18x

100-175=-18x

-75=-18x

18x=75

x=75/18

x=4.1666... inches or 4 1/6 inches for the length of DC

8 0
3 years ago
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