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svlad2 [7]
3 years ago
14

Find the measure of the missing sides of the triangle if each missing angle is 45°

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
6 0

Answer:

the side lengths are both 7

Step-by-step explanation:

Because the angles are both 45 degrees, the triangle is isosceles:  the side lengths are equal.   The hypotenuse of a model 45-45-90 triangle is √2 when the sides are 1 each:

√2        1

------ = -------

7√2       x

                                          1         1

This can be reduced to  ----- = -----

                                           7        x

which makes it obvious that the side lengths are both 7.

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Question 2(Multiple Choice Worth 1 points) (06.01) Solve 2x + 5y = −13 3x − 4y = −8 (4, 1) (−4, 1) (4, −1) (−4, −1)
dlinn [17]
ANSWER

The solution is
(-4,-1)


EXPLANATION

The given equations are:

2x + 5y =  - 13...(1)

and

3x - 4y =  - 8...(2)


We multiply equation 1 by 3 to get,

6x + 15y =  - 39...(3)

We multiply equation 2 also by 2 to get,

6x - 8y =  - 16...(4)

We subtract equation 4 from equation 3 to get,


23y =  - 23
This implies that,

y =  - 1

We put this value of y into any of the equations say equation 2

3x - 4( - 1) =  - 8
Simplify

3x + 4 =  - 8
Group like terms
3x =  - 8 - 4
Simplify,

3x =  - 12

Divide both sides by 3 to get,

x =  - 4


Therefore the solution is
(-4,-1)

The correct answer is option D.
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4 years ago
How many chicks hiding? Explain how you know.
Salsk061 [2.6K]
You can’t really answer this without showing us the the answer you got from item 6
8 0
3 years ago
A boat maker wanted to build a canoe 6 ft long and 2 1/2 wide but decided that those dimensions were too small. The boat maker w
Sati [7]
The ratio of length to width would change slightly, before adding on to the dimensions, the ratio is 6 : 2.5    with the added dimensions, the ratio would change to 8 : 4.5    with simple math you can see that 2.5 is less then half of 6 while 4.5 is more then half of 8
6 0
3 years ago
Read 2 more answers
Is the relation a function?<br><br> Select Yes or No for each relation.
Lina20 [59]
Hello! There are a few things that determine whether or not something is a function. In this case, to determine whether a relation is a function, we look at the domains, which are the x-coordinates, the first number of the pair. If the number occurs in the x-coordinate for more than one pair in a relation, then it's not a function. If a number only occurs as an x-coordinate once in the relation, then it's a function. In other words, they each have only one y-coordinate in the relation. For this question, the first, second, and third relations are functions. The fourth one is not a function, because the 3 has more than one y-coordinate, so it occurs as an x-coordinate more than once. Here are the answers easier to read.

1st : yes
2nd: yes
3rd: yes
4th: no
3 0
3 years ago
6,000 dollars is invested in two different accounts earning 3%and 5% interest. At the end of the year, the two accounts earned 2
nadezda [96]
Hi there

To solve this question
0.03x+0.05 (6000-x)=220
Solve for x to know How much money was invested at 3%
First multiply the values
0.03x+0.05×6000-0.05x=220
0.03x+300-0.05x=220
Second calculate the difference and rearranging the values
0.03x-0.05x=220-300
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Divide both sides by-0.02 and divide the values
X=-0.02/-80
x=4000 invested at 3% this is the answer of your question

While the amount invested at 5% is
6000-4000=2000

Good luck!
5 0
3 years ago
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