State if the two triangles are congruent

Answer:

Step-by-step explanation:

1/2(13-5)+(4+8)^2

A. 148

B. 144

C. 20

D. 16

We must follow "PEMDAS" order of operations rules.  Anything inside parentheses must be done first, followed by exponentiation, multiplication and division, and finally additionl and subtraction.

1/2(13-5)+(4+8)^2 has three sets of parentheses enclosing mathematical expressions:  (1/2), (13 - 5) and (4 + 8).  These evaluate to:

                        1/2,       8,               12

and so we now have (1/2)(8) + (12)^2

Exponentiation is next.  We get:  (1/2)(8) + 144

Next is multiplication:                         4      + 144

Last is addition:                                       148

Answer A is correct:  148

8 x 9+4^2-(63/7)

is evaluated in the same way:

8 x 9+4^2-(9), followed by exponentiation:

8*9 + 16 - 9, followed by multiplication:

72 + 16 - 9 = 79 (Answer C)

Answer:

$597.78

Step-by-step explanation:

$559.98  * 6.75% = 37.798 = 37.80

$559.98  + 37.80  =$597.78

Answer:

28+32e and 4 (8e+7)

Step-by-step explanation:

I did the quiz

The expressions equivalent to 3 (6e + 4) + 8 (e + 2) + 6e are : 4(8e + 7) And 28 + 32e

Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions. To derive equivalent expressions of some expressions, we can either make it look more complex or simple. Usually, we simplify it.

Given the expression as;

3 (6e + 4) +8 (e + 2) + 6e.

Expand the brackets ;

18e + 12 + 8e + 16 + 6e

Now Collect like terms together and simplify;

=18e + 8e + 6e + 12 + 16

=32e + 28

=28 + 32e

Then factorizing the result, we have;

32e + 28 = 4(8e + 7)

The expressions equivalent to 3 (6e + 4) + 8 (e + 2) + 6e are : 4(8e + 7) And 28 + 32e

Learn more about expression here;

https://brainly.com/question/14083225

#SPJ2

Answer:

letters temperature/angle and the number 1? is this something my brain hasnt figured out yet??

Step-by-step explanation:

what

Answer:

Median - 4.5 , i think

Step-by-step explanation:

There are 2 blue marbles.

Hope that helped:)

Answer:

Step-by-step explanation:

Refer to attached

Find the y-intercept:

Find the x-intercepts:

We have vertices of the triangle at:

Base of the triangle is:

Height of triangle:

The area is:

Answer:

7.5 unite square

Step-by-step explanation:

someone already explained so i will just tell you the steps. I deeply apologize for the inconvieence, grammer mistakes, and lack of showing work.

step 1.

find the x- and y intercepts

step 2.

find the vertexes

step 3.

pug the points onto the cordiante plane

s

Answer:

Slope: -1

Step-by-step explanation:

As the x values progress by one, the y values decrease by 1

slope = rise/run

rise = -1, run = 1

-1/1 = -1

if any doubt leave a comment

Answer:

hope this helps :)

Step-by-step explanation:

A. 485

B. 525

C. 700

D. 750

Answer:

D. y = | x – 16.5 |

Step-by-step explanation:

If you want to write an equation for an absolute value function this is the parent function y=a|x-h|+k.

In order to write an equation that is 16.5 units right you would do this:

y=|x-16.5|

If you are moving units left the number -16.5 would become 16.5

Remember when you are moving that the number inside is always the opposite sign of where you are moving  

Here is the answer:

y=|x-16.5|

Hope This Helps!

...............................................................................................................................................

Just subtract 16.5 to the x , in parenthesis, to the existing equation.

For example,

if u r given y= x +3 --> y=(x-16.5)+3

Answer:

(See attached file)

Answer:

2 x 2 x 2 x 5

Step-by-step explanation:

The first few prime numbers:  {2, 3, 5, 7, 11, 13, 17, 19}

One way to start is to divide by the first prime until you can't do that any more, then try the next prime and so on until all the numbers in your list are prime.

40 = 2(20)  divide 20 by 2 again

40 = 2(2)(10)  divide 10 by 2 again

40 = 2(2)(2)(5) stop--all factors are prime.

9514 1404 393

Answer:

  19.9 cm

Step-by-step explanation:

The Pythagorean theorem tells you the square of the hypotenuse is the sum of the squares of the legs.

  h² = 19² +6² = 361 +36 = 397

  h = √397 ≈ 19.9

The measure of the hypotenuse is about 19.9 cm.

Answer:

Step-by-step explanation:

Answer:

x = 19

Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180 degrees

3x + 7 + 5x + x + 2 = 180 add like terms

9x + 9 = 180 subtract 9 from both sides

9x = 171 divide both sides by 9

x = 19 replace x with 19 in expressions to find the angle measures

Answer:

Step-by-step explanation:

1. Match the letters a, b, and c with their statement.

a = "We go to school on Memorial Day"

b = "Memorial Day is a holiday"

c = "We work on Memorial Day"

2. Underline the key words ( that have symbols)

We work on Memorial Day if and only if we go to school on Memorial Day.

We work on Memorial Day or Memorial Day is a holiday.

If we do not go to school on Memorial Day, then we work on Memorial Day.

Memorial Day is a holiday and we do not go to school on Memorial Day.

If we go to school on Memorial Day, then we work on Memorial Day.

3. Use the symbols and the letters.

We work on Memorial Day if and only if we go to school on Memorial Day.

                         c                           ⇔                             a

We work on Memorial Day or Memorial Day is a holiday.

                   c                         V                   b

If we do not go to school on Memorial Day, then we work on Memorial Day.

                            ~a                                           ⇒               c

Memorial Day is a holiday and we do not go to school on Memorial Day.

                       b                     ∧                        ~a

If we go to school on Memorial Day, then we work on Memorial Day.

                             a                                ⇒              c

Answer:

Ooh my god sooo difficult

STEP1:

Simplify

[tex] \frac{x + 4}{x - 2} \\ [/tex]

Equation at the end of step1:

[tex] \frac{ ((x {}^{2} ) - 4) }{x} \times \frac{(x + 4)}{x - 2} \\ [/tex]

Factoring: x2 - 4

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =

A² - AB + BA - B² =

A² - AB + AB - B² =

A² - B²

Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 4 is the square of 2

Check : x2 is the square of x1

Factorization is : (x + 2) • (x - 2)

Polynomial Long Division :

2.2 Polynomial Long Division

Dividing : x + 2

("Dividend")

By : x ("Divisor")

dividend x + 2

- divisor * x⁰ x

remainder 2

Quotient : 1

Remainder : 2

Equation at the end of step 2:

[tex] \frac{(x + 2) \times (x - 2)}{x} \times \frac{(x + 4)}{x - 2} \\ [/tex]

Cancel out (x-2) which appears on both sides of the fraction line.

Final result :

[tex]⇒ \frac{(x + 2) \times (x + 4)}{x} \\ [/tex]

Answer:

d,e,f

Step-by-step explanation:

Answer:

Linear:

A, C, F

Not Linear:

B, D, E

Using the z-distribution, it is found that since the absolute value of the test statistic is greater than the critical value, the null hypothesis is rejected.

At the null hypothesis, we test if the proportions are the same, that is, their subtraction is 0, hence:

[tex]H_0: p_1 - p_2 = 0[/tex]

At the alternative hypothesis, it is tested if they are different, that is, their subtraction is not 0, hence:

[tex]H_1: p_1 - p_2 \neq 0[/tex]

The proportions and their respective standard errors are given by:

[tex]p_1 = 0.25, s_1 = \sqrt{\frac{0.25(0.75)}{120}} = 0.0395[/tex]

[tex]p_2 = 0.37, s_2 = \sqrt{\frac{0.37(0.63)}{150}} = 0.0394[/tex]

For the distribution of the difference, the mean and the standard error are given by:

[tex]\overline{p} = p_2 - p_1 = 0.37 - 0.25 = 0.12[/tex]

[tex]s = \sqrt{s_1^2 + s_2^2} = \sqrt{0.0395^2 + 0.0394^2} = 0.0558[/tex]

The test statistic is given by:

[tex]z = \frac{\overline{p} - p}{s}[/tex]

In which [tex]p = 0[/tex] is the value tested at the null hypothesis.

Hence:

[tex]z = \frac{\overline{p} - p}{s}[/tex]

[tex]z = \frac{0.12 - 0}{0.0558}[/tex]

[tex]z = 2.15[/tex]

The critical value for a two-tailed test, as we are testing if two values are different, with a significance level of 0.15 is [tex]|z^{\ast}| = 1.4395[/tex].

Since the absolute value of the test statistic is greater than the critical value, the null hypothesis is rejected.

A similar problem is given at https://brainly.com/question/25676691

Answer:

5

Step-by-step explanation:

10/2=5

6/3=2

20/10=2

Answer:

760

Step-by-step explanation:

Make me brainliest

please

9 students scored a 76 on the test :)

Step-by-step explanation:

Wall painted = 13

Time = 14 hour

Av = 14/13 hour

I take 14/13 hour to paint one wall

Answer:

It will actually be 3/4 hours

Step-by-step explanation:

Answer:

Put the number being divided over the dividend as a fraction.

Step-by-step explanation:

Answer:

Here are a few useful simplified division tips: If the dividend and divisor are both even numbers, try dividing them first by 2. For example, if you've got to divide 196/22, divide them by 2 first. When you have 98/11, you'll find it easier to figure out the rest of it with the smaller numbers.

Step-by-step explanation:

More Divide by Number Tricks

Divide by 1 - Anytime you divide by 1, the answer is the same as the dividend.

Divide by 2 - If the last digit in the number is even, then the entire number is divisible by 2.

Divide by 4 - If the last two digits divide by 4, then the entire number is divisible by 4.

Answer:

a is 10 and b is 100

Step-by-step explanation:

(a)- if you take 10 to the tenth power you'll get 100

(b)- if you take 100 to the 100th power you'll get 10,000

Answer:

3/8

Step-by-step explanation:

1/4 = 2/8

1/8 + 2/8= 3/8

3/8 is simplified

Using the normal distribution and the central limit theorem, it is found that there is an approximately 0% probability that the total number of candies Kelly will receive this year is smaller than last year.

Normal Probability Distribution

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In this problem:

The probability is the p-value of Z when X = 122, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{122 - 140}{3}[/tex]

[tex]Z = -6[/tex]

[tex]Z = -6[/tex] has a p-value of 0.

Approximately 0% probability that the total number of candies Kelly will receive this year is smaller than last year.

A similar problem is given at https://brainly.com/question/24663213