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Neporo4naja [7]
3 years ago
13

Please help?????????????????????

Mathematics
1 answer:
iren [92.7K]3 years ago
5 0

Answer:

The answer is option (B)

Here is the explanation...

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Two fifths of the senior class earned a grade of B+ or higher on an advanced mathematics exam. If 42 seniors scored at least a B
g100num [7]

Answer:

Step-by-step explanation:

its is 105

5 0
3 years ago
Read 2 more answers
14c^3d^2-21c^2d^3/14cd
levacccp [35]

14c³d²-21c²d³/14cd

= (196c^4d³-21c²d³)/ 14cd

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I hope that's help !

3 0
3 years ago
Find the measure of an angle whose complement is five times its measure.
ch4aika [34]

Answer:

The measure of the unknown angle is 15°.

Step-by-step explanation:

Represent this angle by A.  Then the complement of A is 90° - A.

"Angle whose complement is five times its measure" would be expressed as

90° - A = 5A

Solve this for A by adding A to both sides:

90° = 6A.  Then A = 90°/6, or 15°

4 0
3 years ago
Which is an equation for the line shown?<br> A) x=2<br> B) y=2<br> C) x=-2<br> D) y=-2
Studentka2010 [4]

Answer:

A) x=2

Step-by-step explanation:

7 0
3 years ago
Help help help help pls
Monica [59]

Answer:

\theta = 82.2^\circ

Step-by-step explanation:

Let \  \angle BAC = \theta

Opposite = BC ,

Adjacent = AB = x = 3 ,

Hypotenuse = AC = y = 22

<em><u>Using trigonometric ratios.</u></em>

sin \theta = \frac{opposite}{hypotenuse }\\\\cos \theta = \frac{adjacent}{hypotenuse}\\\\tan \theta = \frac{opposite}{adjacent}

Since we have adjacent and hypotenuse we use cosine's  ratio

to find the angle.

           cos \theta = \frac{x}{y} = \frac{3}{22} \\\\\theta = cos^{-1} \frac{3}{22} = 82.16 = 82.2^\circ

6 0
3 years ago
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