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o-na [289]
3 years ago
5

12 Need help. I can’t fail this!!

Mathematics
2 answers:
Monica [59]3 years ago
7 0

Answer:it’s D

Step-by-step explanation:

jonny [76]3 years ago
4 0
the second one

reason:
the difference or the triangles is 1/3
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quadritlateral with two separate pairs of equal sides and my four sides cannot be equal, my equal sides are next to each other.
Anarel [89]
Check the picture below, notice those three quadrilaterals, bearing in mind that a square and rhombus both have equal sides all around.

3 0
3 years ago
Plh help me this is for a unit grade
luda_lava [24]

Answer:

B  \frac{5}{4}s

Step-by-step explanation:

since last years income is s, and  \frac{4}{4} = 1, them \frac{4}{4}s = s.

adding \frac{1}{4}s to s would be equal to \frac{5}{4}s, which is option B.

\frac{4}{4}s + \frac{1}{4}s = \frac{5}{4}s

4 0
3 years ago
Read 2 more answers
Find the measure of the indicated side or angle.
lozanna [386]

Answer:

60°

Step-by-step explanation:

We'll begin by calculating EC. This can be obtained as follow:

Angle EAC = 39°

Hypothenus = EA = 3.7 m

Opposite = EC =?

Sine EAC = Opposite /Hypothenus

Sine 39 = EC / 3.7

Cross multiply

EC = 3.7 × Sine 39

EC = 2.3 m

Finally, we shall determine angle BEC. This can be obtained as follow:

Adjacent = EC = 2.3 m

Hypothenus = BC = 4.6 m

Angle BEC =?

Cos BEC = Adjacent / Hypothenus

Cos BEC = 2.3 / 4.6

Cos BEC = 0.5

Take the inverse of Cos

BEC = Cos¯¹ 0.5

BEC = 60°

Thus, angle BEC is 60°

7 0
3 years ago
Find the value of x. Round the length to the nearest tenth.​
Colt1911 [192]

To find value of <em>x</em> we can use the sine angle function. From definition and basics of trigonometry we know that,

\sin(\theta)=\dfrac{\mathrm{opposite}}{\mathrm{hypotenuse}}

In this case our opposite is <em>x</em> and our hypotenuse is <em>15m</em><em> </em>and our angle \theta is <em>35°.</em>

Therefore,

\sin(35^{\circ})=\dfrac{x}{15}

If we solve for <em>x</em>,

x=15\sin(35^{\circ})\approx\boxed{8.6\mathrm{m}}

Hope this helps.

<u>r3t40</u>

7 0
3 years ago
5.) Cameron is choosing a career out of high school with no further training. The median salary for this career is $30,000. His
kicyunya [14]
Answer: C Working out: (55,000 x 20) - (30,000 x 20) = $500,000 $1,100,000 - $600,000 =$500,000
3 0
3 years ago
Read 2 more answers
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