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statuscvo [17]
3 years ago
8

HELP i have three questions can anyone help this is a exam please hurry and answer with a,b, c, or d.

Mathematics
2 answers:
k0ka [10]3 years ago
8 0

Answer:


Step-by-step explanation:

d

kenny6666 [7]3 years ago
3 0

The answer is a, they are vertical angles and vertical angles are congruent

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Which solid figure could be formed from the net shown?
Andru [333]
Square pyramid is the answer to your question
6 0
2 years ago
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Match each function formula with the corresponding transformation of the parent function y = (x - 1)2 1. y = - (x - 1)2 Reflecte
lawyer [7]

Answer:

  1. y = -(x-1)² . . . . reflected over the x-axis
  2. y = (x-1)² +1 . . . . translated up by 1 unit
  3. y = (x+1)² . . . . reflected over the y-axis
  4. y = (x-2)² . . . . translated right by 1 unit
  5. y = (x-1)² -3 . . . . translated down by 3 units
  6. y = (x+3)² . . . . translated left by 4 units

Step-by-step explanation:

Since you have studied transformations, you are familiar with the effect of different modifications of the parent function:

  • f(x-a) . . . translates right by "a" units
  • f(x) +a . . . translates up by "a" units
  • a·f(x) . . . vertically scales by a factor of "a". When a < 0, reflects across the x-axis
  • f(ax) . . . horizontally compresses by a factor of "a". When a < 0, reflects across the y-axis.

Note that in the given list of transformed functions, there is one that is (x+1)². This is equivalent to both f(x+2) and to f(-x). The latter is a little harder to see, until we realize that (-x-1)² = (x+1)². That is, this transformed function can be considered to be either a translation of (x-1)² left by 2 units, or a reflection over the y-axis.

8 0
3 years ago
The equation V(t) = 12,000(0.75)^t represents the value of a motorcycle
user100 [1]

Answer:

(2) The motorcycle cost $12,000 when purchased.

Step-by-step explanation:

In the standard exponential equation, y = ab^x, a is the original value.

Since the equation is V(t) = 12,000(0.75)^t, a is 12,000.

This means that the original value was 12,000.

So, the motorcycle cost $12,000 when it was first purchased.

The correct answer is (2) The motorcycle cost $12,000 when purchased.

7 0
3 years ago
Use the Quadratic Formula to find the exact solutions of x2 + 7x - 4 = 0.
sladkih [1.3K]

Answer:

The solution of equation x^2+7x-4=0 is 0.53,-7.53.

Step-by-step explanation:

Given : Quadratic equation x^2+7x-4=0

To find : The solution of equation ?

Solution :

The solution of the quadratic equation ax^2+bx+c=0 is x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Here, a=1, b=7 and c=-4.

Substitute the values,

x=\frac{-7\pm\sqrt{7^2-4(1)(-4)}}{2(1)}

x=\frac{-7\pm\sqrt{65}}{2}

x=\frac{-7+\sqrt{65}}{2},\frac{-7-\sqrt{65}}{2}

x=0.53,-7.53

Therefore, the solution of equation x^2+7x-4=0 is 0.53,-7.53.

3 0
3 years ago
A trapezoid has an area of 150 square meters. If the bases are 14 meters and 16 meters, what us the height of the trapezoid?
goldenfox [79]
To find the area of a trapezoid, we use the following formula:
a = \frac{1}{2} (b1 + b2) \times h
In this formula a represents the area and b1 and b2 each represent a base of the trapezoid.

So, we have got the following information
a = 150
b1 = 14
b2 = 16

Filling in the formula gives us:
150 = \frac{{1} }{2} \times (14 + 16) \times h
150 = \frac{1}{2} \times 30 \times h
150 = 15 \times h
Finally we have to divide both sides by 15.
h = 150 \div 15 = 10
Therefore, the height of the trapezoid is 10 meters.
5 0
3 years ago
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