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3 years ago

Select the three expressions that are equivalent to −3(4 − 3x) + (5x − 2)

Mathematics

1 answer:

Stells [14]3 years ago

4 0

Answer : a , c , d

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What is the area if a triangle with a base of 7x and a height of 8x expresssed as a monomial

Ede4ka [16]

Answer:

Step-by-step explanation:

$Area=\frac{1}{2}*b*h\\\\=\frac{1}{2}*7x*8x\\\\=7x*4x\\\\=28x^{2}$

7 0

3 years ago

How many solutions does a triangle with side lengths a = 4, A = 112º and b =<br>9 have?

Ainat [17]

Answer:

This case has NO solutions.

Step-by-step explanation:

Notice that you are in a case of an obtuse triangle (one of its angles is larger than 90 degrees), the side opposite to the obtuse triangle is shorter than the side adjacent to the angle, so no actual triangle can be formed.

This can be found by simply trying to apply the Law of Sines to solve for the value of angle "B" opposite to side "b":

$\frac{sin(A)}{a} =\frac{sin(B)}{b}\\sin(B)=\frac{b\,sin(A)}{a}\\sin(B)=\frac{9\,sin(112^o)}{4}\\\\sin(B)=2.086$

As shown above, we get an impossible mathematical condition (also call an absurd), since the sine of an angle cannot give a value larger than 1 (one).

Therefore, there is no angle we can find to build a triangle with the given data.

7 0

3 years ago

Helpp lang pooo di ko alam eh..<br>A.P po subject

docker41 [41]

Answer:

I can't answer this I don't know this language-

8 0

3 years ago

Can u guys PLEASE answer this question ASAP. A line passes through the point (2,4) and has a gradient 2. Find the y-coordinate o

Veseljchak [2.6K]

y=2

Step-by-step explanation:

Make an equation of straight line by using the formula :y= mx+c

put the x-value of point (2,4) which is 2 and the gradient,m which is 2 into the straight line equation:

y=2x +c

So you need to find the y-intercept to complete the equation, therefore:

when y=0,

0=2(2)+c

c=-4

next the question ask to find the y-coordinate when x =3, therefore you just need to replace x in the equation with 3:

y=2(3)-4

y=4

7 0

3 years ago

Two angles are complementary if the sum of their measures is 90°. Find two complementary angles such that one of the angles is 1

Burka [1]

Bro that's a lot, i don't know what the heck you are talking about.

4 0

4 years ago