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3 years ago

If m = 8, how many solutions are there to the expression 7m? 0, 1, 2, infinite

Mathematics

1 answer:

Oxana [17]3 years ago

3 0

7m...and m = 8
7(8) = 56...one solution...and that solution is 56

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Round to the nearest tenth.

laila [671]

Answer:

8.2 units

Step-by-step explanation:

Given that the only information for our triangle are 2 sides and 1 angle, we must use the Law of Cosines to find side BC

Recall the Law of Cosines

$a^2=b^2+c^2-2bc\cdot cos(A)$

Identify angles and sides

$m\angle A=23^\circ\\a=BC=?\\b=AC=14\\c=AB=6$

Solve for side "a"

$a^2=b^2+c^2-2bc\cdot cos(A)\\\\a^2=14^2+6^2-2(14)(6)\cdot cos(23^\circ)\\\\a^2=196+36-168cos(23^\circ)\\\\a^2=222-168cos(23^\circ)\\\\a=\sqrt{222-168cos(23^\circ)}\\ \\a\approx8.2$

Therefore, the length of line segment BC is about 8.2 units

8 0

2 years ago

Please help! The expressions 3x - 9 and 23 - 5x represent the lengths (in feet) of two sides of an equilateral triangle. Find th

valentina_108 [34]

An equilateral triangle has 3 congruent sides so the 2 expressions above are equal
3x - 9= 23 - 5x
And then you solve for x
-22=-2x
X=11

5 0

3 years ago

Write an expression for the operation described below. the product of 2 and c

PtichkaEL [24]

Answer:

2c or 2 x c

Step-by-step explanation:

Product means multiplication, they put 2 first then c last.

Hope this helps

~R3V0

3 0

3 years ago

I dont understand this question 2.45 x 2.69 x 86.3

Tasya [4]

Answer:

The answer is 568.76 if u want rounded and 568.76015

Step-by-step explanation:

Because when you multiply them you get the answer. Much easier if you line them up.

Plzzz give thanks and give brainlest

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3 years ago

PLZZZZZZZZZZZZZZZZ HELP IM IN A RUSH

olga55 [171]

B .....................

7 0

3 years ago

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