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ioda
3 years ago
12

Select the correct answer.

Mathematics
1 answer:
Gre4nikov [31]3 years ago
4 0

Answer:

(D) These two matrices cannot be added.

Step-by-step explanation:

Matrices of different shapes can't be added, but they can be multiplied. : ) Have a good day.

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the area of a parallelogram shape land is on the square and length of its two adjacent sides are 25 m and 17 M find its diagonal
Alex787 [66]

Step-by-step explanation:

Draw diagonal AC

The triangle ABC has sides 17 and 25

Say AB is 17, BC is 25

Draw altitude on side BC from A , say h

h = 17 sin B

Area = 25*17 sin B = 408

sin B = 24/25

In ∆ ABC

Cos B = +- 7/25

= 625 + 289 — b^2 / 2*25*17

b^2 = 914 — 14*17 = 676

b = 26

h = 17*24/25 = 408/25 = 16.32

Draw the second diagonal BD

In ∆ BCD, draw altitude from D, say DE =h

BD^2 = h^2 + {(25 + sqrt (289 -h^2) }^2

BD^2 = 16.32^2 + (25 + 4.76)^2

= 885.6576 + 266.3424

BD = √ 1152 = 33.94 m

6 0
2 years ago
Can someone help me with this? I am a little confused
arsen [322]
28 .to explain they want to know the missing side and the triangles are equal to each-other just one is projected smaller than the other . So the one with 16 16 and 24 is the smaller one . The difference between 24-16 is 8 . And In the bigger one the sides 20 and 20 where given so since the smaller one is equal to the bigger one you just do 20+8=28
4 0
2 years ago
The coordinates for a rectangle are (3,10) (9,10) (9,6) and (3,6). What is the area
GalinKa [24]
Check the picture below.  You can pretty much count the units off the grid for its width and length.

6 0
3 years ago
Read 2 more answers
A company has offices in two different countries. The 125 employees at location A have a mean commute time of 40 minutes and a s
Ainat [17]

Answer:

B

Step-by-step explanation:

We cannot assume independence for the employees sampled from location A.

8 0
3 years ago
DO,K = (5, 0) (10, 0) The scale factor is 1/2 2 5
Lapatulllka [165]
If the preimage point is (5,0) and the image point is (10,0)
then the scale factor is k = 2

Basically the coordinates of the old point have doubled (multiplied by 2)

x = 5 is the old x coordinate
x = 10 is the new x coordinate (5*2 = 10)

y = 0 is the old y coordinate
y = 0 is the new y coordinate (0*2 = 0, no change)
3 0
3 years ago
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