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3 years ago

Quadrilateral Practice Test, I’ll give brainliest to the correct answer with explanation

Mathematics

1 answer:

pshichka [43]3 years ago

8 0

Answer:

120 Degrees

Step-by-step explanation:

Angle T and R are vertical angles meaning they are equal so combine the equations: 31x - 4 = 29x + 4, then solve using inverse operations

subtract 31x from both sides to get -4 = -2x + 4

Then subtract 4 from both sides to get -8 = -2x, now that we have isolated the variable we have to divide by -2 on both sides getting us x = 4, then plug in the four to the equation for angle R getting you 29 times 4 which equals 116 + 4 = 120

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A football team carried out a report to see the impact of stretching on preventing injury. Of the

DochEvi [55]

Answer:

9/45

Step-by-step explanation:

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2 years ago

What percent of 130 is 96???? Round the the nearest whole percent

stepladder [879]

96 divided by 130 is .738
0.738 x 100 = 73.8
Which rounds to 74%

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3 years ago

Read 2 more answers

Which property is shown by -3•(6+5)=-3•6+-3•5?

grandymaker [24]

Answer: distributive property

Step-by-step explanation:

This answer may not be correct but you never know!

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3 years ago

Using the completing-the-square method, find the vertex of the function f(x) =- 3x2 + 6x − 2 and indicate whether it is a minimu

svp [43]

F(x) = -3x² + 6x - 2
First, we make the coefficient of x² equal to 1
f(x) = -3(x² + 2x - 2/3)

Now, we must make the form a² + 2ab + b²
b = 2x/2x
b = 1

f(x) = -3(x² + 2x + 1² - 1² - 2/3)
f(x) = -3(x² + 2x + 1 - 5/3)
f(x) = -3(x + 1)² - 5

The vertex is (-1 , -5)
And this is the maximum point because the coefficient of the squared term is negative.

6 0

3 years ago

A bowl contains 25 balls numbered 1 to 25. A ball is drawn and its number is noted. Without replacing the first ball, another ba

puteri [66]

The probability that the numbers on both balls are odd numbers is $\frac{13}{50}$

Solution:

The probability of an event is given as:

$probability =\frac{\text { number of favorable outcomes }}{\text { total number of possible outcomes }}$

Given that, bowl contains 25 balls numbered 1 to 25

The sample space is given as;

{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }

Therefore,

Total number of possible outcomes = 25

A ball is drawn and its number is noted. Without replacing the first ball, another ball is drawn.

Numbers on both balls are odd numbers

Let us first find the probability that first ball is odd

Favorable outcome = odd numbers

Favorable outcome = 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25

Number of favorable outcomes = 13

Thus, probability is given as:

$probability = \frac{13}{25}$

Now Without replacing the first ball, another ball is drawn.

Find the probability that second ball is odd number

Without replacing means that ball is not put back into bowl

So, sample space = 25 - 1 = 24

Total number of possible outcomes = 25

Number of favorable outcomes = 13 - 1 = 12

Thus, probability is given as:

$probability = \frac{12}{24}$

Probability that the numbers on both balls are odd numbers is:

Multiply both the probabilities

$\text{ probability of odd } = \frac{13}{25} \times \frac{12}{24} = \frac{13}{50}$

Thus, probability that the numbers on both balls are odd numbers is $\frac{13}{50}$

8 0

3 years ago