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natita [175]
3 years ago
14

The triangle on the right is a scaled copy of the triangle on the left. Identify the scale

Mathematics
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

the scale factor is 4 to 1, or just 4.

Step-by-step explanation:

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What is the point-slope equation of the line with slope -13 that goes through the point (5, 7)?
WINSTONCH [101]
Hello
 the point-slope equation of the line with slope -13 that goes through the point (5, 7) is :   <span>A)    y - 7 = -13(x - 5)
because ; 7-7= -13(5-5)</span>
7 0
3 years ago
Susan incorrectly factored the expression below. 12a − 15b + 6 3 (4a + 5b + 3)
hichkok12 [17]

Answer:

3(4a−5b+2)

Step-by-step explanation:

The answer should have originally been 3(4a-5b+2)

3(4a+5b+3)= 12a+15b+9 which is incorrect.

6 0
2 years ago
Secants BE and CF intersect at point D inside A. What is the measure of CDE?
Aleks04 [339]
MCE = 360 - (150 + 70 + 50)
mCE = 360 - 270
mCE = 90

<CDE = 1/2(mBE + mCE)
<CDE = 1/2(150 + 90)
<CDE = 1/2(240)
<CDE = 120

answer
<CDE = 120°
6 0
3 years ago
If a number is divided into two but such. One part is 10 more than the other is the two parts in the ratio of 5 to 3 find number
alexandr1967 [171]
15 and 25 are the parts, 40 is the number
6 0
2 years ago
Which point gives the vertex of ƒ(x) = –x2 + 4x – 3?
Dmitriy789 [7]

Answer:

The vertex is (2,1)

Step-by-step explanation:

ƒ(x) = –x^2 + 4x – 3

Factor out the negative

   = -(x^2 -4x+3)

 Factor

What 2 numbers multiply to +3 and add to -4

-3*-1 = 3

-3+-1 = -4

f(x) =  -( x-3)(x-1)

Find the zeros

0 = -( x-3)(x-1)

0 = x-3   0 = x-1

x=3            x=1

The x value of the vertex is 1/2 way between the two zeros

(3+1)/2 = 4/2 =2

To find the y value, substitute x=2 in

f(2) =  -( 2-3)(2-1)

       =-(-1)(1) = 1

The vertex is (2,1)

4 0
3 years ago
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