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jolli1 [7]
3 years ago
10

PLEASE HELP! Shalini found the sum of the measures of the interior angles of the triangle to be 175°. She knows the sum is suppo

sed to be 180°. What was Shalini’s error? m∠A = 45° m∠B = 85° m∠C = 45° Shalini did not add the sum of the 3 angles correctly.
Mathematics
2 answers:
Licemer1 [7]3 years ago
6 0

Answer:

its c

Step-by-step explanation:

because i said

forsale [732]3 years ago
3 0

Answer: The answer is angle c is 45 degrees or C

Step-by-step explanation:

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What is the perimeter of triangle ABC? Round each step to the nearest tenth. Please help me
Ad libitum [116K]

I would use the pythagorean theorem to find the lengths of each side. a² + b² = c².

Side AB is one we're looking for. If you make other right triangle with that same side you can see that one length is 4 and the other is 3. So, 4² + 3² = c² → 25 = c² → 5 = c. Side AB is length 5.

Side AC is another. Do the same with that side and you get that one length is 4 and the other is 3. (This is the same one as above) so side AC is length 5.

Side BC is the last one. One of the lengths is 1 and the other is 1 → 1² + 1² = c² → 2 = c² → 1.414213562 = c so side BC is approximately length 1.41.

Add each length up and you get a perimeter of roughly 11.4

8 0
4 years ago
What would the graph of y=x look like? name three ordered pairs that lie on the line.
ololo11 [35]

-- The graph looks like a line that passes through the origin,
and slopes up to the right at a 45-degree angle.

-- Point #1 on the line:
. . . . . Pick any number. 
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. . . . . Call the first one 'x'.  Call the second one 'y'.

-- Point #2 on the line:
. . . . . Pick any other number. 
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. . . . . Call the first one 'x'.  Call the second one 'y'.

-- Point #3 on the line:
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Rinse and repeat, as many times as you like,
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3 0
3 years ago
Read 2 more answers
Whats the inequality in the graph?
Kazeer [188]

Answer:

y=2x-5

Step-by-step explanation:

Slope is rise over run, or y/x

The points given were (0,-5) and (-1,-3)

Using y2-y1/x2-x1 we can find the slope.

-3-(-5)/-1-0 = 2/-1 = -2 = slope

Next, we have to find the y-intercept. The y-intercept is where the point on the line meets the y-axis.

This point is shown at -5.

Now, putting our information into y=mx+b (slope-intercept form)

y=2x-5

2 is our slope

-5 is our y intercept

6 0
3 years ago
If y=3x 2 find the value of y when x=-3
Sholpan [36]
Y=3(-3) x 2
y= -9 x 2
y=-18
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3 years ago
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galina1969 [7]

Answer: There all even on all sizes.

Step-by-step explanation:

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