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Damm [24]
3 years ago
9

PLZ HELP PICKING BRAINLIEST A = 3,7 and B= -4,0 Find AB in simplest radical form

Mathematics
1 answer:
joja [24]3 years ago
5 0

Answer:

AB = 7√2

Step-by-step explanation:

if a(x1,y1) and b(x2,y2) then

ab =  \sqrt{ {(x1 - x2)}^{2}  +{(y1 - y2)}^{2}}

Based on your points and on the formula above AB is:

\sqrt{ {(3 - ( - 4))}^{2} +  {(7 - 0)}^{2}  }  \\  \sqrt{ {(3 + 4)}^{2}  +  {7}^{2} }  \\  \sqrt{ {7}^{2} +  {7}^{2}  }  \\  \sqrt{2 \times  {7}^{2} }  \\ 7 \sqrt{2}

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the sum of three numbers is twenty. the second number is four times the first and the sum of the first and third is eight. what
8090 [49]
Let's call the three numbers x, y, and z. 


The numbers are 3, 12, and 5.
x + y + z = 20
y = 4x
x + z = 8
We can rewrite the first equation because y is 4x, so 
x + 4x + z = 20
5x + z = 20
And now we can use simultaneous equation rules to solve

5x + z = 20
x + z = 8

5x + z = 20
5x + 5z = 40
(subtract)
-4z + -20
÷ -4
z = 5

x + z = 8
x + 5 = 8
x = 3

y = 4x
y = 4 × 3
y = 12

I hope this helps!
4 0
3 years ago
PLS HELP!! Jason bought glass vases for his booth at the fair. If he bought 13 vases and the total weight was 34.97 lb, how much
Stels [109]

Answer:

D. 2.69 lb is your answer

13vases=34.97lb

1 vase=34.97/13=2.69lb

6 0
3 years ago
True or false, the two triangles are congruent by ASA<br> O true<br> false
Helga [31]
True because it’s true
5 0
2 years ago
Read 2 more answers
Solve for the missing side to the nearest tenth.<br> 16<br> 30<br> X =
Mrrafil [7]

Answer: x=32

Step-by-step explanation:

Because a triangle is 180°, the missing angle in the triangle would be 60°.

Because of the 30°-60°-90° angles theorem, The side opposite 90° is double the side opposite 30°, which means that x=32.

3 0
3 years ago
Can someone please help me? I can't find the h(x) for 0. I also need help with the last question. Please I need it very soon.
Solnce55 [7]

9514 1404 393

Answer:

  see attachments for a table and graph

Step-by-step explanation:

I find it convenient to use a graphing calculator or spreadsheet to do repetitive computations reliably.

__

Your specific question asks for h(0):

  h(0) = -|0 +2| +1 = -2 +1

  h(0) = -1

You may want to check your other table values.

8 0
2 years ago
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