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3 years ago

If l║m and m∠8 = 109°, what is m∠5?

Mathematics

1 answer:

Alexxandr [17]3 years ago

6 0

you need to see all the measurements to know what m∠5 to get the answer.

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HELP ME PLEASE HURRY: Wade has claims that quadrilateral ABCD is a square because he has found that all four sides are congruent

RUDIKE [14]

Answer:

At first we should know that:

The properties of the square are:

It has four equal sides.
All angles are right angles or equal to 90º.
The sum of its all angles is 360º
It has two pairs of perpendicular lines.
It has two pairs of parallel lines.

The properties of Rhombus

It has equal four sides.
The opposite sides are of the same length.
It has two acute angles and two obtuse angles.
The sum of its all angles is 360º
It has zero pairs of perpendicular lines.
It has two pairs of parallel lines.

So, Wade is incorrect because the quadrilateral may be Rhombus

And the quadrilateral to be a square, she needs to show that It has two pairs of perpendicular lines.

6 0

3 years ago

Let f(x)=16^x, find f(1/4)

sergejj [24]

Answer:

Step-by-step explanation:

$f( \frac{1}{4} ) = {16}^{ \frac{1}{4} } = \sqrt[4 ]{16} = 2$

That's it, hope you enjoyed it.

6 0

3 years ago

Anwers : a. dotted b. y=-x+4 c. y=x-4 d. y=x+1 e. solid f. yes g. no

Ksenya-84 [330]

Answer:

Those answers are correct

5 0

3 years ago

Find the equation of all tangent lines having slope of -1 that are tangent to the curve y=(9)/(x+1)

fredd [130]

Answer:

$f(x)=\frac9{x+1}\\ f'(x)=-\frac9{(x+1)^2}\\ f'(x)=-1\ \iff\ -\frac9{(x+1)^2}=-1\ \to \ \frac9{(x+1)^2}=1\ \to \ (x+1)^2=9\\ |x+1|=3\ \to \ x+1=3\ \vee\ x+1=-3\\ x_1=2\ \vee\ x_2=-4\\ f(x_1)=f(2)=\frac9{2+1}=3\\ f(x_2)=f(-4)=\frac9{-4+1}=-3$

First tangent line:

$y=f'(x_1)\cdot (x-x_1)+f(x_1)\ \to \ y=-1(x-2)+3\ \to \ y=-x+5$

Second tangent line:

$y=f'(x_2)\cdot (x-x_2)+f(x_2)\ \to \ y=-1(x+4)-3\ \to \ y=-x-7$

Notice: slope of -1 means that both $f'(x_1), \ f'(x_2)$ are equal to -1, so $f'(x_1)=-1 \ and \ f'(x_2)=-1$

6 0

3 years ago

Read 2 more answers

I really need help plzzzzz

Sonbull [250]

ANSWER

D. rotation, translation, reflection

EXPLANATION

Dilation is not a rigid motion.

When the triangle is dilated the image triangle may become bigger ( magnification) or smaller (reduction).

When the scale factor is negative 1, a congruent triangle is obtained.

Hence dilation will not always produce a congruent triangle.

Rotation, reflection and translation are rigid motions and hence will always produce a congruent triangle.

8 0

3 years ago