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Kitty [74]
3 years ago
15

Help Please! I'm not sure how to do this.

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0

Answer: work it out


Step-by-step explanation:

Imagine line through d and e

Note it crosses y axis at y=0

Note that d to e moves 2 to right and 2 up

So slope is 1

Equation in slope intercept form is

y = m x + b

Only two have that form

b is point where line crosses y axis, see above

Only one choice has correct b value

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Please someone answer this, “what is the area of triangle ABC?”
prisoha [69]

Here's the solution,

The given triangle is an <u>equilateral triangle</u>, because it's all angles measure 60° each

now,

Area of an equilateral triangle :

=》

\dfrac{ \sqrt{3} }{4}  {a}^{2}

where,

  • a = 8 ( side measure )

=》

\dfrac{ \sqrt{3} }{4}  \times 8 \times 8

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\sqrt{3}  \times 16

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16 \sqrt{3} \:  \:  \:  cm {}^{2}

or

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27.71 \:  \: cm {}^{2}

4 0
2 years ago
Solve for the given length. The length of a rectangle is 3m longer than its width. The area of the rectangle is 154^2. What is t
Andre45 [30]
If the length of a rectangle is 3m longer than its width, then:
L=W+3
Is the area really 154^2? Or is it 154m^2? If yes, then:
A=LW
154=(W+3)(W)
154=(W^2+3W)
0=W^2+3W-154
0=(W-11)(W+14)
This means either (W-11) or (W+14) is equal to zero so:
W=11 and W=-14
To find out let's substitute the numbers:
154=(11+3)(11)
154=154
Therefore, the width of the rectangle is 11m
7 0
3 years ago
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Lynna [10]

Answer:

Step-by-step explanation:

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3 0
2 years ago
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Please answer this friends I am stuck ?
goblinko [34]

Answer:

<u>10°C average temperature</u>

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a third grader has a goal of solving 100 math facts in 5 minutes (or 300 seconds). how many seconds can he spend on each math fa
arsen [322]

Answer:

1 fact per 3 seconds because you divide 300 by 100

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2 years ago
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