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3 years ago

Solve similar triangles can someone please answer

Mathematics

1 answer:

hram777 [196]3 years ago

4 0

Answer:

With this sort of geometric problem, all you need to do is look and identify, to narrow down your answer. Particularly, you should pick up on any trends. I'm hoping you noticed that using the other two points, you can see that they are dividing by three from the red shape to get the blue shape sides. And you should also notice that the shape is flipped, so if you picture it in the same position as the other one to match up the sides!

To find n, simply do 6 ÷ 3

This equals 2!

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PLZ HELP WILL GIVE BRAINLISET IF RIGHT!!!

Irina-Kira [14]

Answer:

72.5mph

Step-by-step explanation:

There is an easy way to work this. Divide the miles he drove by 2 so that you know how much he drove in 1/5 hours.

29/2= 14.5miles driven in 1/5 hours

Now, just multiply that number by 5 so that you know how many miles he drove in 5/5 hours (one full hour).

14.5*5= 72.5miles

5 0

2 years ago

The product of two numbers is -30, but their sum is -13. What are these two numbers?

Nata [24]

<h3>Answer: -15 and 2</h3>

You find this through trial and error.

A much more efficient way is to solve x^2-13x-30 = 0 using the quadratic formula. You'll find the two solutions to be x = 15 and x = -2

Going from those solutions, we get x-15 = 0 and x+2 = 0 which then turn into (x-15)(x+2) = 0 through the zero product property.

3 0

3 years ago

Read 2 more answers

Suppose that A, B, and C are invertible matrices of the same

STALIN [3.7K]

Answer:

Step-by-step explanation:

Given that t A, B, and C are invertible matrices of the same

size.

To pr that $(ABC)^{-1} = C^{-1}B^{-1}A^{-1}.$

to pr that $( ABC) (C^{-1}B^{-1}A^{-1})=e$

LS= $( AB(C (C^{-1})B^{-1}A^{-1})\\=ABIB^{-1}A^{-1})\\=A(BB^{-1})A^{-1})\\=AA^{-1})\\=I$

Thus proved

8 0

3 years ago

Let f(x) = -2x + 7 and g(x) = -6x + 3. Find fxg and state its domain.

marissa [1.9K]

Option D: $(f\times g)(x)=12 x^{2}-48 x+21$ ; all real numbers.

Explanation:

Given that the functions are $f(x)=-2 x+7$ and $g(x)=-6 x+3$

We need to determine the value of $(f\times g)(x)$ and its domain.

<u>The value of </u> $(f\times g)(x)$ <u>:</u>

The value of $(f\times g)(x)$ can be determined by multiplying the two functions.

Thus, we have,

$(f\times g)(x)=f(x)\times g(x)$

$=(-2x+7)(-6x+3)$

$=12x^2-6x-42x+21$

$(f\times g)(x)=12 x^{2}-48 x+21$

Thus, the value of $(f\times g)(x)$ is $(f\times g)(x)=12 x^{2}-48 x+21$

<u>Domain:</u>

We need to determine the domain of the function $(f\times g)(x)$

The domain of the function is the set of all independent x - values for which the function is real and well defined.

Thus, the function $(f\times g)(x)=12 x^{2}-48 x+21$ has no undefined constraints, the function is well defined for all real numbers.

Hence, Option D is the correct answer.

3 0

2 years ago

Read 2 more answers

What is the balance of an investment after 2 years if the starting amount was 543300

PtichkaEL [24]

Answer:

Step-by-step explanation:

Since it is simple interest, you have to use the formula I = Prt.

(I is interest, P is principal (the starting amount), and r is the & rate as a decimal.

So, the interest would be

I = 543,300 (0.048) (2) = $52,156.80

The balance is the total amount. The balance would be the starting amount plus the interest.

Balance = 543,300 + 52,156.80 = $595,456.80

8 0

2 years ago