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2 years ago

Help ???????????? ?????

Mathematics

2 answers:

saveliy_v [14]2 years ago

7 0

Answer:

<h3>the answer is B</h3>

Step-by-step explanation:

laiz [17]2 years ago

3 0

Answer:

Step-by-step explanation:

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A gram weighs less than an ounce.

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1 ounce weighs more than a gram

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3 years ago

The graph of a linear function passes through the points (-

myrzilka [38]

Answer:

3/5

Step-by-step explanation:

y2 - y1 / x2 - x1

-1 - (-4) / 2 - (-3)

3/5

3/5 is the slope.

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3 years ago

Write the equation of a line perpendicular to y=-5x that passes through the point (1,1) in slope intercept form. (This question

Kazeer [188]

Answer:

y= 1/5x + 0.8

Step-by-step explanation:

Hope this helps

7 0

3 years ago

Please help?

Mazyrski [523]

Answer:

$23\sqrt{3}\ un^2$

Step-by-step explanation:

Connect points I and K, K and M, M and I.

1. Find the area of triangles IJK, KLM and MNI:

$A_{\triangle IJK}=\dfrac{1}{2}\cdot IJ\cdot JK\cdot \sin 120^{\circ}=\dfrac{1}{2}\cdot 2\cdot 3\cdot \dfrac{\sqrt{3}}{2}=\dfrac{3\sqrt{3}}{2}\ un^2\\ \\ \\A_{\triangle KLM}=\dfrac{1}{2}\cdot KL\cdot LM\cdot \sin 120^{\circ}=\dfrac{1}{2}\cdot 8\cdot 2\cdot \dfrac{\sqrt{3}}{2}=4\sqrt{3}\ un^2\\ \\ \\A_{\triangle MNI}=\dfrac{1}{2}\cdot MN\cdot NI\cdot \sin 120^{\circ}=\dfrac{1}{2}\cdot 3\cdot 8\cdot \dfrac{\sqrt{3}}{2}=6\sqrt{3}\ un^2\\ \\ \\$

2. Note that

$A_{\triangle IJK}=A_{\triangle IAK}=\dfrac{3\sqrt{3}}{2}\ un^2 \\ \\ \\A_{\triangle KLM}=A_{\triangle KAM}=4\sqrt{3}\ un^2 \\ \\ \\A_{\triangle MNI}=A_{\triangle MAI}=6\sqrt{3}\ un^2$

3. The area of hexagon IJKLMN is the sum of the area of all triangles:

$A_{IJKLMN}=2\cdot \left(\dfrac{3\sqrt{3}}{2}+4\sqrt{3}+6\sqrt{3}\right)=23\sqrt{3}\ un^2$

Another way to solve is to find the area of triangle KIM be Heorn's fomula, where all sides KI, KM and IM can be calculated using cosine theorem.

7 0

3 years ago

Find the slope of the line that passes through (5, 1) and (9, 2).<br> It’s due in 4 minutes

Mekhanik [1.2K]

Answer:

1/4

Step-by-step explanation:

(2-1)/(9-5)

1/4

8 0

3 years ago