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erastovalidia [21]
3 years ago
10

Find the cofactors of each entry in the first row of matrix.

Mathematics
2 answers:
iVinArrow [24]3 years ago
6 0

Answer:

Step-by-step explanation:

maw [93]3 years ago
5 0

Answer:

Ac_11 = -13

Ac_12 = 44

Ac_13 = 27

Step-by-step explanation:

Plato

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An aquarium has a base in the shape of a trapezoid. The base is 100
Nat2105 [25]

Answer:

Volume = 210L

Step-by-step explanation:

Given

Base:

Front = 100cm

Back = 50cm

Width = 40cm

Height = 70cm

Required

Determine the volume (in litres)

First, we need to calculate the area;

Base on the parameters given, we have:

Area = \frac{1}{2}(Front + Back) * Width

Area = \frac{1}{2}(100cm + 50cm) * 40cm

Area = \frac{1}{2}(150cm) * 40cm

Area = 75cm * 40cm

Area = 3000cm^2

Volume = Area * Height

Volume = 3000cm^2 * 70cm

Volume = 210000cm^3

1cm^3 = 0.001L

So:

Volume = 210000 * 0.001L

Volume = 210L

4 0
4 years ago
WILL MARK BRAINLIEST PLZ HELP (well i will try at least)
anyanavicka [17]
Hello!

A figure only becomes bigger if it is dilated. This figure is reflected, not dilated, so A is not the answer.

Shapes are similar if the ratios of their corresponding side lengths match. Basically, they are the same shape but can be in a different size or direction. In our case each side is the same length, and they are both triangles. Therefore these shapes ARE similar, so be could be the answer.

If you were to rotate the two triangles and look at the angles that were in the same spot, those are corresponding angles. They would have the same angle measure. If you were to turn each triangle tip pointing up, (S,R') would have the same angle measure, along with (R, S') and (T,T'). As you can see, R is equal to S', so C could also be the answer.

In D we can see that R corresponds to S', not T, so D is not the answer.

Now we are torn in between B and C. C is just explaining one angle. B is saying that the shapes are similar. This would mean that all of their corresponding angles. C is just an example of B. B has it all in one. Therefore, our answer is B) <span>Figure RST is similar to figure R′S′T′.

I hope this helps!
</span>
4 0
4 years ago
Read 2 more answers
If numerous large random samples or repetitions of the same size are taken from a population, the proportions from the various s
natita [175]

The percentages from the different samples will have a true population percentage mean.

A real population proportion shows the percentage of a population that exhibits a particular trait.

A population's proportions will have a real population proportion mean if numerous big random samples or repeats of the same size are taken.

Here is an illustration of how to cross multiply, or find a cross product. In this instance, you multiply 3 x 10 to get 30 and then 5 x 6 to get 30. The proportion is accurate because the two products are equal.

Learn more about true population proportion here: brainly.com/question/13711224

#SPJ4

4 0
2 years ago
A giant tortoise travels at 0.17 miles per hour and an arctic hare travels at 37 miles per hour. If
irina1246 [14]

Answer:

3.145 Hours

Step-by-step explanation:

37÷2=18.5

18.5×.17=3.145

6 0
3 years ago
Read 2 more answers
Seven Grade Math<br> Explain Why
Annette [7]

Answer:

D. 75x+160<760

Step-by-step explanation:

The reason is 75 has to be a variable because it changes with time. The fee is a fixed rate that will not change no matter the time. All of these values must be less than 760 meaning the variable and constant must be less than (<) 760

7 0
3 years ago
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