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3 years ago

WILL REWARD BRAINLESS Acute triangles are similar. Always Sometimes Never

Mathematics

1 answer:

Mkey [24]3 years ago

3 0

Answer: Sometimes.

Step-by-step explanation:

Acute triangles are triangles that have three acute angles (<90 degrees).

For instance, a triangle with angle measures of 45, 50, and 85 would be an acute triangle, as would a triangle with angle measures of 65, 55, and 60. Those two triangles would not be similar, as their side lengths and angles are different. However, a triangle with identical angle measures and different side lengths are similar, whether acute or obtuse.

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write the equation of the ellipse using the given information: the ellipse has foci (0,3) and (0,-3) and major vertices (0,5) an

svetlana [45]

Answer: (x^2)/16 + (y^2)/25 = 1

Step-by-step explanation:

According to the problem we can figure out that the center of the ellipse is (0,0).

Since the foci is (0,3) and (0,-3) we know that the value of c is 3. The major vertices are (0,5) and (0,-5) so the value of a is 5.

If we put this into the equation a^2=b^2 + c^2, we get 25=9+ b^2

We get b^2 is 16

Now since we know that the ellipse is vertical because the x value didn’t change, we know that the b^2 value comes first in the equation. Then the a^2 value which is 25.

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3 years ago

Tyler can swim 1/2 miles in 1/3 hours at a constant speed. At this rate , how fast does Tyler swin in miles for hours?

gladu [14]

Miles. Hours

1/2 = 1/3
1 = 2/3
1 1/2 = 3/3 or 1

= 1

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2 years ago

a money market fund advertises a simple interest rate of 9% find the total amount received on an investment of 5000 for 17 month

I am Lyosha [343]

Answer:

Step-by-step explanation:

Formula: Simple interest = PRT

P= 5000

R= 9%

T= 17

So, 5000 x 9/100 x 17 = 7650

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3 years ago

Use foil method (8a - 8)(4a + 1)

BlackZzzverrR [31]

The answer is: " 32a² − 24a − 8 " .
__________________________________________________
Given:
__________________________________________________
(8a − 8)(4a + 1) ; Let us expand this expression using the: "FOIL" method.
___________________________________________________
"FOIL" stands for "First terms, Outer terms, Inner Terms, Last Terms" ;
 in that order.
___________________________________________________
Basically:
_______________________________________________________
(a + b)(c + d) = ac + ad + bc + bd ;

in which the:

First term is: "ac" ;
Outer term is: "ad" ;
I nner term is: "bc" ;
Last term is: "bd " .
__________________________________
So; we have (given):

(8a − 8)(4a + 1) ;
__________________________________________________
Let's take the "First, Outer, Inner, and Last terms" ; as follows:
__________________________________________________
F: (8a)*(4a) = 32a² ;
__________________________________________________
O: (8a)*(1) = 8a ;
__________________________________________________
I : (-8)*(4a) = -32a ;
__________________________________________________
L: (-8)*(1) = -8
__________________________________________________
Now, let us write out these terms:
__________________________________________________
32a² + 8a − 32a - 8 ;
__________________________________________________
Now, combine the "like terms" in this expression; to simplify:

 + 8a − 32a = -24a ;
__________________________________________________
and rewrite the simplified expression ; which is:
__________________________________________________
 32a² − 24a − 8 .
______________________________________________________

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3 years ago

Two supplementary angles are congruent. Which equation gives the measure in degrees, d, of each angle?

Nimfa-mama [501]

Solution:

The given statement is :Two supplementary angles are congruent.

Two angles are said to be supplementary if sum of these two angles is 180°.

Let one Angle be A, then another angle will be 180 - A.

As given:

A≅180-A

A=180 -A

A +A= 180

2 A = 180

Dividing both sides by 2, we get

A= 90°

The Measure of each angle will be of 90°.

i.e , d = 90°

5 0

3 years ago

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