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3 years ago

PLEASE HELP ME!! IF ANYONE IS THERE COMNE ON 10 POINTS!!

Mathematics

2 answers:

Molodets [167]3 years ago

6 0

15^2 + 36^2 = c^2
225 + 1296 = c^2
/1521 = /c^2
c = 39

4vir4ik [10]3 years ago

6 0

Geometry

The two legs squared could equal the hypotenuse, c.

(a and b could be either 36 or 15, there's not a way to confirm which is which)

$a^{2} + {b}^{2} = {c}^{2}$

15^2+36^2=c^2

225+1296=c^2

√1521=√c^2

c=39

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Given z1 and z2, what is the midpoint? z1=5-7i and z2=-9+3i.

sveta [45]

Answer:

$7-2i$

Step-by-step explanation:

As you're used to do in the real plane, midpoint is the average of Real and Imaginary part. So $\frac{5+9}2 +i \frac{-7+3}2 = \frac{14}2+i\frac{-4}2 = 7-2i$

7 0

3 years ago

A triangle is shown. The table names different transformations that can be applied to the triangle.

Citrus2011 [14]

The given transformations are rigid transformation in which the image

can be located by a formula.

Response:

First reflect across the x-axis then reflect across the y-axis

Figure: Second graph

First, rotate 180° counterclockwise around the origin. Then reflect across the x-axis.

Figure: Third graph

First translate 9 units to the left. Then reflect across the x-axis

Figure: First graph

<h3>Which method is used to determine the transformation of an image?</h3>

The coordinates of (x, y) following a reflection across the x-axis is (x, -y)

The coordinates following a reflection across the y-axis is (-x, y)

The points of the triangle following the first transformation is therefore;

(4, 4) → (4, -4) → (-4, -4)

(8, 4) → (8, -4) → (-8, -4)

(6, 6) → (6, -6) → (-6, -6)

The image from the first transformation is (-4, -4), (-8, -4), (-6, -6), which

corresponds to the second graph.

The coordinates following a rotation of (x, y) by 180° about the origin is (-x, -y)

A reflection of the point (-x, -y) about the x-axis is (-x, y).

Therefore;

(4, 4) → (-4, -4) → (-4, 4)

(8, 4) → (-8, -4) → (-8, 4)

(6, 6) → (-6, -6) → (-6, 6)

The image from the second transformation is (-4, 4), (-8, 4), (-6, 6), which corresponds to the third graph.

The coordinates following a translation of 9 units to the left is (x - 9, y)

A reflection of the point (x - 9, y) about the x-axis is (x - 9, -y)

Therefore;

(4, 4) → (4 - 9, -4) = (-5, -4)

(8, 4) → (8 - 9, -4) = (-1, -4)

(6, 6) → (6 - 9, -6) → (-3, -6)

The image from the third transformation is (-13, -9), (-1, -4), (-7, -6), which corresponds to the first graph.

Learn more about rigid transformations here:

brainly.com/question/11408409

6 0

3 years ago

Read 2 more answers

A rectangular plot of land is to be enclosed by a fence. One side is along a river, and does not need to be enclosed. If the tot

Bad White [126]

Answer:

Width 150 meters.

Length = 350 meters.

Step-by-step explanation:

Let us assume the width of the fence = k meters

So, both sides = k + k = 2k meters

Also, the TOTAL fencing length = 600 m

So, the one side length of the fence = (600 - 2 k) meters

AREA = LENGTH x WIDTH

⇒ A(k) = (600 - 2k) (k)

or, A = -2k² + 600 k

The above equation is of the form: ax² +bx + C

Here: a = - 2 , b = 600 and C = 0

As a< 0, the parabola opens DOWNWARDS.

Here, x value is given as: $x = \frac{-b}{2a}$

Solving for the value of k similarly, we get:

$k = \frac{-b}{2a} = \frac{600}{2(-2)} = 150$

Thus the desired width = k = 150 meters

So, the desired dimensions of the plot is width 150 meters.

And length = 650 - 2k = 650 - 300 = 350 meters.

5 0

3 years ago

HELP ME PLEASEEE!! 48 degrees 96 degrees x =

Roman55 [17]

Answer:

144°

96+48(further away angles)

8 0

3 years ago

Read 2 more answers

Hello I need some help with my last Question pls..

solniwko [45]

Answer:

350

Step-by-step explanation:

The difference is 35, she's spending 35 everyday

7 0

3 years ago