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faust18 [17]
3 years ago
12

The measure of ac = 7, mbac = 80°, mabc = 50°, the measure of nm = 7, mlnm = 80°, and mnlm = 50°. do the measurements indicate t

hat abc nlm?
Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Answer:

<u>*I need more detail* but if I guessed than the question is asking if the are equal  triangles.</u>

Δabc=Δnlm

Step-by-step explanation:

Draw out both triangles and label them as described in the question. If one angle of the triangles are 80° and 50° than the other angle has to be measured as 50° because all the angles have to add up to 180°. And both triangles are said to have angles 80° and 50°. The length of ac and ab are equivalent because it is an isosceles triangle and same goes for Δnlm.

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Find the area of this figure.<br> A= cm2
soldier1979 [14.2K]

Answer:

area of rectangle=7×5=35cm²

area of triangle=1/2×4×3=6cm²

Step-by-step explanation:

area of figure=35+6=41 cm²

7 0
3 years ago
What is the vertex form of the parabola whose standard form equation is y=5x^2-30x+49
agasfer [191]

Answer:

The vertex is (3,4)

Step-by-step explanation:

To convert a quadratic from  

y = a x 2 + b x + c

form to vertex form,

y = a ( x − h ) 2 + k , you use the process of completing the square.

First, we must isolate the  x

terms:

y − 49 = 5 x 2 − 30 x + 49 − 49

y − 49 = 5 x 2 − 30 x

We need a leading coefficient of  1

for completing the square, so factor out the current leading coefficient of 2.

y − 49 = 5 ( x 2 − 6 x )

Next, we need to add the correct number to both sides of the equation to create a perfect square. However, because the number will be placed inside the parenthesis on the right side we must factor it by  

2

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y − 49 + ( 5 ⋅ ? ) = 5 ( x 2 − 6 x + ? )

<- Hint:  

62 = 3 ;  3 ⋅ 3 = 9

y − 49 + ( 5 ⋅ 9 ) = 5 ( x 2 − 6 x + 9 )  

y− 49 + 45 = 5 ( x 2 − 6 x + 9 )

y − 4 = 5 ( x 2 − 6 x + 9 )

Then, we need to create the square on the right hand side of the equation:

y − 4 = 5 ( x − 3 ) 2

Now, isolate the  y  term:

y − 4 + 4 = 5 ( x − 3 ) 2 + 4

y − 0 = 5 ( x − 3 ) 2 + 4

y − 0 = 5 ( x − 3 ) 2 + 4

The vertex is:  

( 3 , 4 )

7 0
3 years ago
1 4 6 60 7 9 10TIME REMAIN41:42For a snack, Sameer ate a plum with 32 calories and several strawberries with 4 calories each. If
Alex777 [14]
Well, if Sameer's plum was 32 calories, and we know his total snack was 56 calories, all we have to do is:

56-32=24

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8 0
3 years ago
Barry is thinking of a number.
Virty [35]

Answer:

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Step-by-step explanation:

Let's focus on the first 2 parts of the hints :  

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Let's write out the factors of 30 :

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Now let's pick out the even ones :

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7 0
1 year ago
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kondor19780726 [428]

Answer:

2.25 gallons

Step-by-step explanation:

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8 0
2 years ago
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