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Galina-37 [17]
3 years ago
14

Help pleaseee! I will give you brainliest

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

Answer:

The axis of symmetry is x= -2

Step-by-step explanation:

The axis of symmetry is found by

h = -b/2a   where ax^2 +bx+c

y = x^2 +4x-5

a = 1  b=4

h = -4/(2*1)

   = -4/2 = -2

The axis of symmetry is x= -2

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miskamm [114]

Answer:

6

Step-by-step explanation:

8 0
2 years ago
Which transformation, when performed on the triangle ABC, will result in the transformed figure A'B'C being similar but NOT cong
Gnoma [55]

Answer:

b. a dilation by a scale factor of 2

Step-by-step explanation:

Which transformation, when performed on the triangle ABC, will result in the transformed figure

A'B'C' being similar but NOT congruent to the original triangle?

a. a reflection over the x-axis

b. a dilation by a scale factor of 2

C.a translation two units to the right

d. a rotation 90° clockwise about the origin

Solution:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, reflection and dilation.

Rigid transformation are transformation that preserves the size and shape of a figure. Examples of rigid transformation are reflection, translation and rotation.

Dilation preserves the shape but not the size of a figure.

If translation, rotation or reflection is done on triangle ABC, the transformed figure would be congruent to the original triangle. But, if dilation is done, the transformed figure would be similar but NOT congruent to the original triangle.

8 0
2 years ago
Solve for x. Please look at the picture and answer it. Thank you.
SVEN [57.7K]

Answer:

\tt x=21

Step-by-step explanation:

\tt 45+63+4x-12=180

\tt \cfrac{4x}{4} =\cfrac{180-96}{4}

\tt x=21

~

7 0
2 years ago
What is the volume of a square pyramid with base edges 24 feet and slant height 37
-Dominant- [34]

Answer: The volume of pyramid is 6720 ft³

Step-by-step explanation:

Given: Base edge of a square pyramid = 24 feet

Slant height = 37 feet

Therefore height of pyramid is given by

h^2=l^2-\dfrac{1}{2} b^2 where h is height, l is slant height and b is base edge of pyramid

So we have

h^2= 37^2-(\dfrac{1}{2} \times 24)^2= 37^2-12^2=1225 \\\\\Rightarrow h= \sqrt{1225} =35

Height of pyramid is 35 feet

Now the volume of a pyramid is given by

V=b^2\dfrac{h}{3} where V is volume , b is base edge and h is height of pyramid

Therefore

V= (24)^2\dfrac{35}{3} = 6720

Hence , the volume of pyramid is 6720 ft³

7 0
2 years ago
Agora chess club has 16 members and gains a new memeber every month. The key club has 4 members and gains 4 new members every mo
svlad2 [7]

Answer:

For chess club:

y1 = 16 + 1*x where y1=total number of members after x months  

For film club

y2 = 4 + 4*x where y2=total number of members after x months  

y1 = y2 at  

16 + x = 4 + 4x

3x = 12  

x = 4  

Therefore, after 4 months they the same number of members (equals 20 members, 16 + 1*4 or 4 + 4*4).


3 0
2 years ago
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