All categories

3 years ago

What is the most accurate name for this polygon? A. pentagon B. regular pentagon C. convex pentagon D. concave pentagon

Mathematics

1 answer:

mart [117]3 years ago

4 0

Can't see what the polygon looks like so I can't help srry

You might be interested in

What are the solutions to the equation <br> 0=x^2-10x+10

d1i1m1o1n [39]

X: 5/4 ( forme différents): 1,25

4 0

3 years ago

7.45+(-24.45)+74.17+(-76.52)

Blizzard [7]

Answer:

-19.35

Step-by-step explanation:

Steps

7.45−24.45+74.17−76.52

−17+74.17−76.52

57.17−76.52

-19.35

3 0

3 years ago

Nestor need 750 centimeters of rope . Rope comes in lengths of 4 1/2 meters and 9 meters at the hardware store. Which length of

Firdavs [7]

Answer:

9 meter.

Step-by-step explanation: 4 1/2 meters is too short, he would have to buy 2 lengths. 4 1/2 meters is 450 cm while 9 meters is 900 cm, if he gets the 900 cm length he can just cut off the excess to use later.

5 0

3 years ago

Which of the following are even numbers ?

musickatia [10]

Answer:

an even number is a number that is divisible by 2 so there it will be 16 38 44 48 68 84 and 92

3 0

3 years ago

Which of the following matrices is the solution matrix for the given system of equations? x + 5y = 11 x - y = 5

givi [52]

<h2>The required solution is x = 6 and y = 11 </h2>

Step-by-step explanation:

Given system of equations are

x+5y = 11 and x-y =5

$A= \left[\begin{array}{cc}1&5\\1&-1\end{array}\right]$ $X=\left[\begin{array}{c}x\\y\end{array}\right]$

and $B= \left[\begin{array}{c}11\\5\end{array}\right]$

∴AX=B

$adj A = \left[\begin{array}{cc}{-1}&{-5}\\{-1}&1\end{array}\right]$

$A= \left|\begin{array}{cc}1&5\\1&-1\end{array}\right|=-6$

∴ $A^{-1} =\frac{adj A}{|A|}$

So, $A^{-1} =\frac{ \left[\begin{array}{cc}{-1}&{-5}\\{-1}&1\end{array}\right]}{-6}$

$A^{-1} ={ \left[\begin{array}{c \c} {{\frac{1}{6} }}&{\frac{5}{6}}\ \\ {{\frac{1}{6} }}&{\frac{-1}{6}} \end{array}\right]}$

$X =A^{-1}\times B$

⇒ $\left[\begin{array}{c}x\\y\end{array}\right] ={ \left[\begin{array}{c \c} {{\frac{1}{6} }}&{\frac{5}{6}}\ \\ {{\frac{1}{6} }}&{\frac{-1}{6}} \end{array}\right]} \times \left[\begin{array}{c}11\\5\end{array}\right]$

⇒ $\left[\begin{array}{c}x\\y\end{array}\right] ={ \left[\begin{array}{c} {6}\\ {11} \end{array}\right]}$

∴ x= 6 and y = 11

The required solution is x = 6 and y = 11

7 0

3 years ago