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coldgirl [10]
3 years ago
15

What number should be added to the expression to change it into a perfect square trinomial?

Mathematics
1 answer:
Alex3 years ago
3 0
The answer is a. 1
Hope this helps

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Please help<br><br><br> don’t scam <br><br> marking brainlist
umka21 [38]

Answer:

c) 1.2 mm, 1.6 mm, 2 mm

Step-by-step explanation:

In order to find which sides equal a right triangle, you need to use the Pythagorean Theorem: A^2+B^2=C^2

Set up the equation with the first numbers. The two shorter sides (legs) are A and B, and the longest side (hypotenuse) is C.

4^2+5.5^2 = 6^2

46.25\neq 36

Since the two sides are not equal, the first option is not a right triangle.

When you follow these steps with the remaining three options, you'll find that the third option (C) makes a right triangle.

1.2^2+1.6^2=2^2\\4=4

Hope this helps, have a nice day!

3 0
3 years ago
Help pls?? will give brainilest &lt;3
N76 [4]

Answer:

The y = 0.5 the x = 1

Step-by-step explanation:

The y = 0.5 the x = 1

6 0
3 years ago
Read 2 more answers
Find the measure of ∠3.<br><br> a. 118<br> b. 62<br> c. 31
JulijaS [17]

<em>answer = 62 \\ solution \\  \: let \:   < 3 \: be \: x \\ x  + 118 = 180(sum \: of \: angle \: in \: triangle) \\ or \: x = 180 - 118 \\ x = 62 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment</em>

7 0
4 years ago
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△ABC ~ △XYZ. Find X. Thanks!
Marizza181 [45]

Answer:

<h2>\huge \: \boxed{ \boxed{21}}</h2>

Step-by-step explanation:

according to the question

\frac{14}{2x + 7}  =  \frac{x - 3}{63}

882 = (x - 3)(2x + 7)

0 =882 -  (x - 3)(2x + 7)

882 - (2 {x}^{2}  + x - 21) = 0

882 -  {2x}^{2}  - x  + 21 = 0

- {2x}^{2}  - x + 903 = 0

2x + x - 903 = 0

(2x + 43)(x - 21) = 0

x =  -  \frac{43}{2}  \\ x = 21

\huge \therefore x = 21

8 0
3 years ago
What is the explicit formula for the geometric sequence with this recursive formula?
weeeeeb [17]

Answer:

A

Step-by-step explanation:

The explicit formula for a geometric sequence is

a_{n} = a₁ (r)^{n-1}

where a₁ is the first term and r the common ratio

The recursive formula gives a term in the sequence by multiplying the previous term by r

Given the recursive formula

a₁ = - 6

a_{n} = a_{n-1} (\frac{1}{4} )

with r = \frac{1}{4}

Then explicit formula is

a_{n} = - 6(\frac{1}{4}) ^{n-1} → A

6 0
4 years ago
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