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3 years ago

Pleassseeee hhheellppp

Mathematics

1 answer:

hichkok12 [17]3 years ago

6 0

Answer:

a). Point A

b). 90°

c). Anticlockwise

Step-by-step explanation:

As it's clear from the picture attached,

Triangle XYZ has been rotated about a point A to form an image X'Y'Z'.

Angle of rotation is 90° about a point A.

a). Point which is the center of the rotation → point A.

b). Angle of rotation → 90°

c). Direction of rotation → Anticlockwise

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If QR = 6x + 1, PR = 14x-13, and PQ = 5x -2, find PR.

monitta

Answer:

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Step-by-step explanation:

5 0

3 years ago

Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution? A

Gelneren [198K]

Answer:

<u>The correct answer is A. Add 4 to both sides, and then divide by 2. The solution is x = 12.</u>

Step-by-step explanation:

1. For solving the question and understand which of the statements matches with the solution, let's proceed with the equation:

2x − 4 = 20

2x - 4 + 4 = 20 + 4 (Adding 4 at both sides)

2x = 24

2x/2 = 24/2 (Dividing by 2 at both sides)

x = 12

<u>The correct answer is A. Add 4 to both sides, and then divide by 2. The solution is x = 12.</u>

8 0

2 years ago

Pls help dont care about the blue dot btw

alexdok [17]

Answer:

the answer is B

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Help please

love history [14]

Answer:

Tallahassee's Range: 6

Key West's Range: 4

Step-by-step explanation:

To calculate range, you'd subtract the lowest value from the highest value

Tallahassee:

Highest Value: 90

Lowest Value: 84

Range: 90 - 84 = 6

Key West:

Highest Value: 87

Lowest Value: 83

Range: 87 - 83 = 4

3 0

2 years ago

Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

4 0

3 years ago

Read 2 more answers