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2 years ago

If DE≅EF, CD = v + 45, and CF = 4v, what is the value of v?

Mathematics

1 answer:

cupoosta [38]2 years ago

7 0

Answer:

15 cause DC and CF are the same lenght

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PLEASEEEEEE HELPPPPPPPPP!!!!!!!!!!!!!!!!! ON ASSESSMENTTTT PRACTICEEEE ITS VERY URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Find the co

adelina 88 [10]

In order to determine the vertex of the given functions, consider that the general form of a quadrati function is:

y = ax² + bx + c

The value of x for the vertex is given by:

x = -b/2a

The value for y, based on the previous values of x, is the y value of the vertex. Use the previous expression to find the vertices:

1. y = x² + 8x - 6

x = -8/2(1) = -4

y(-4) = (-4)² + 8(-4) - 6 = 16 - 32 - 6 = -22

Hence, the vertex is (-4,-22)

2. y = -4x² - 24x - 5

x = -(-24)/2(-4) = -6

y(-6) = -4(-6)² - 24(-6) - 6 = -144 + 144 - 6 = -6

Hence, the vertex is (-6,-6)

3. y = 2x² - 3x + 7

x = -(-3)/2(2) = 3/4 = 0.75

y(3/4) = 2(3/4)² - 3(3/4) + 7 = 18/16 - 9/4 + 7 =5.875

Hence, the vertex is (0.75 , 5.875)

4. y = -x² + 5x - 6

x = -5/2(-1) = 5/2 = 2.5

y(5/2) = -(5/2)² + 5(5/2) - 6 = 0.25

Hence, the vertex is (2.5 , 0.25)

5. y = 1/2 x² + 6x - 5

x = - 6/(2(1/2)) = -6

y(-6) = 1/2 (-6)² + 6(-6) - 5 = -23

Hence, the vertex is (-6 , -23)

6. y = 4x² + 7

x = -0/2(4) = 0

y(0) = 4(0) + 7 = 7

Hence, the vertex is (0 , 7)

8 0

1 year ago

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Galina-37 [17]

Hi am I am doing the same to the same

5 0

3 years ago

3. start fraction x over 5 end fraction + 6 = 10 (1 point) 44 30 20 –20 4. 3(4 – 2x) = –2x (1 point) –1 1 2 3

max2010maxim [7]

Answer:

3.x=20

Step-by-step explanation:

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3 years ago

Solve for X, will give you brainliest and a like

grigory [225]

Answer

Step-by-step explanation:

One solution :

x = -1/3 = -0.333

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

-5*(3*x+1)+4*x-(10*x+2)=0

Step by step solution :

Step 1 :

Equation at the end of step 1 :

((0 - 5 • (3x + 1)) + 4x) - (10x + 2) = 0

Step 2 :

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

-21x - 7 = -7 • (3x + 1)

Equation at the end of step 3 :

-7 • (3x + 1) = 0

Step 4 :

Equations which are never true :

4.1 Solve : -7 = 0

4 0

3 years ago

Read 2 more answers

The vertices of a rectangle in the standard (x,y) coordinate plane are (0,0), (0,4), (7,0), and (7,4). If a line through (2,2) p

Hatshy [7]

Answer:

slope =0

Step-by-step explanation:

Given that the vertices of a rectangle in the standard (x,y) coordinate plane are (0,0), (0,4), (7,0), and (7,4).

The rectangle has length = 7 and width =4

We know rectangle has two lines of symmetry which are i) vertical line through mid point ii) Horizontal line through mid point

Since the line passes through (2,2) we have the line as middle line.

Hence the required line is $y =2$

Slope of the line =0

3 0

3 years ago