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arsen [322]
2 years ago
14

Look at the image below. What is the area of the triangle? units​

Mathematics
1 answer:
Mrrafil [7]2 years ago
4 0

Answer:

7 Units^2

Step-by-step explanation:

If we add an exact copy of the triangle, we can make a parallelogram.

Then we can use the parallelogram's area to figure out the triangle's area.

Hint #22 / 4

The original triangle has \dfrac{1}{2}

2

1

​

start fraction, 1, divided by, 2, end fraction the area of the parallelogram we just made.

Hint #33 / 4

\begin{aligned} \text{Area of parallelogram} &= \text{base} \times \text{height}\\\\ \text{Area of triangle} &= \dfrac{1}{2} \times \text{base} \times \text{height}\\\\ &= \dfrac{1}{2} \times 7 \times 2\\\\ &= \dfrac{1}{2} \times 2 \times 7\\\\ &= 1 \times 7\\\\ &= 7 \end{aligned}

Area of parallelogram

Area of triangle

​

 

=base×height

=

2

1

​

×base×height

=

2

1

​

×7×2

=

2

1

​

×2×7

=1×7

=7

​

Hint #44 / 4

The triangle has an area of 777 units^2

2 squared.

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Step-by-step explanation:

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3 years ago
Which is an equation of the line that goes through the points ( 4, 1) and
Aloiza [94]

Answer:

  none of the above

Step-by-step explanation:

You can try the points in the equations (none works in any equation), or you can plot the points and lines (see attached). <em>You will not find any of the offered answer choices goes through the given points</em>.

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You can start with the 2-point form of the equation of a line. For points (x1, y1) and (x2, y2) that equation is ...

  y = (y2 -y1)/(x2 -x1)·(x -x1) +y1

Filling in the given points, we get ...

  y = (3 -1)/(2 -4)·(x -4) +1

  y = 2/(-2)(x -4) +1 . . . . . simplify a bit

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  y = -x +5 . . . . . . . . . . . slope-intercept form

5 0
2 years ago
Solve x2+12x=-11 by completing the square . Which is the the solution set of the equation?
Dmitriy789 [7]

Answer:

{- 11, - 1 }

Step-by-step explanation:

Since the coefficient of the x² term is 1 , to complete the square

add (half the coefficient of the x-term )² to both sides

x² + 2(6)x + 36 = - 11 + 36 ← complete the square on the left side

(x + 6)² = 25 ( take the square root of both sides

\sqrt{(x+6)^2} = ± \sqrt{25}

x + 6 = ± 5 ( subtract 6 from both sides )

x = - 6 ± 5

x = - 6 + 5 = - 1 or x = - 6 - 5 = - 11




8 0
3 years ago
Read 2 more answers
Please help this is due in 20 mins, I will give brainliest
eduard

Answer:

L = 5\sqrt{10}

Step-by-step explanation:

use Pythagorean Theorem:

L² + (5\sqrt{2})² = (10\sqrt{3})²

L² + 25(2) = 100(3)

L² + 50 = 300

L² = 250

L = \sqrt{250} = \sqrt{25} · \sqrt{10} = 5\sqrt{10}

6 0
2 years ago
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PLEASE HELP ASAP!! You used your new smart watch to record your heart rate every morning for 15 days. Select the dot plot that r
Artyom0805 [142]

The dot-plot for the data is sketched at the end of this answer.

--------------------------

  • The dot plot shows the <u>number of times each measure appears in the data-set.</u>

<u />

  • 68 appears once, thus it is 1 in the dot-plot.
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The sketch is given at the end of this answer.

A similar problem is given at brainly.com/question/24908406

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