solve each formula for the specified variable​

Answer:

Step-by-step explanation:∠ACE ≅ ∠BCD  

Answer:

d

Step-by-step explanation:

Answer:

Step-by-step explanation:

As per midsegment theorem of a trapezoid,

Segment joining the midpoints of the legs of the of the trapezoid is parallel to the bases and measure half of their sum.

Length of midsegment = [tex]\frac{1}{2}(b_1+b_2)[/tex]

3). MN = [tex]\frac{1}{2}(18+10)[/tex]

           = 14

4). MN = [tex]\frac{1}{2}(57+76)[/tex]

           = 66.5

5). MN = [tex]\frac{1}{2}(AB+DC)[/tex]

    7 = [tex]\frac{1}{2}(AB+10)[/tex]

    14 = AB + 10

    AB = 14 - 10

    AB = 4

6). 15 = [tex]\frac{1}{2}[(3x+2)+(2x-2)][/tex]

    30 = 5x

     x = 6

Answer:

6x + y

Step-by-step explanation:

Answer:

121.3728

Step-by-step explanation:

calcluated with calculater

Answer:

Yes.

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

if the point A is (1;-3), the point B is (5;-6), then

1. the formula of the required length is:

[tex]d=\sqrt{(X_A-X_B)^2+(Y_A-Y_B)^2};[/tex]

2, after the substitution of the coordinates of the points A and B into the formula of the required diameter:

[tex]d=\sqrt{(1-5)^2+(-3+6)^2}=\sqrt{16+9}=5.[/tex]

Answer:

ion ot know

Step-by-step explanation:

Answer:

The Type of Reliability in each Scenario are:

Scenario   Type of Reliability Test

a)               Parallel forms reliability

b)               Interrater reliability

c)               Internal consistency reliability

Step-by-step explanation:

Types of Reliability Tests:  

Test-retest reliability = measures the results consistency with the application of the same test at different times.

Interrater reliability = shows consistent ratings by different examiners.

Parallel forms reliability = uses alternative versions of an equivalent test to probe for similar results.

Internal consistency reliability = this test checks the consistency of individual items of a test.

Answer: 0.6472

Step-by-step explanation:

Given: The proportion of unvaccinated school-age children = 13.5%

Then, the  proportion of vaccinated school-age children :p=100%-13.5%

= 86.5% = 0.865

Total children selected :n=3

Binomial probability formula:

[tex]P(X=x)=\ ^nC_xp^x(1-p)^{n-x}[/tex]

The probability that all three children have been vaccinated :

[tex]P(X=3)=\ ^3C_3(0.865)^3(0.135)^0\\=(1)(0.647214625)\approx0.6472[/tex]

Hence, the required probability = 0.6472

Answer:

C. The function is increasing when x > 0.

Step-by-step explanation:

Statement best describes the function, The function is increasing when x > 0.

We have given that,

A. The function is always increasing.

B. The function is never increasing.

C. The function is increasing when x > 0.

D. The function is increasing when x < 0.

A function is increasing when the y-value increases as the x-value increases, like this It is easy to see that y=f(x) tends to go up as it goes along.

We have to determine the statement best describes the function.

Therefore,The function is increasing when x > 0.

To learn more about the increasing function visit:

https://brainly.com/question/12940982

#SPJ2

Answer:

275

Step-by-step explanation:

Answer:

1) is correct. not second

Step-by-step explanation:

Answer:

8:3

Step-by-step explanation:

Answer:

Step-by-step explanation:

121(40)/4840

4840/4840

1 acre

Answer:

22

Step-by-step explanation:

give them brain, they're correct.

The Unit Rate for Amy will be 22 pages per hour.

The Unit Rate is defined as means a rate for one of something.

We have,

Amy can read 88 pages in 4 hours.

So,

Now,

Number of pages Amy can read in 1 hour [tex]=\frac{88}{4}[/tex]

So,

Number of pages Amy can read in 1 hour = 22,

That means,

The  Unit Rate for Amy is 22 pages per hour.

Hence, we can say that the Unit Rate for Amy will be 22 pages per hour.

To know more about Unit Rate click here

https://brainly.com/question/11258929

#SPJ2

Answer:

1/5(15+10k)

=1/5.15+1/5.10k

=3+2k

Answer:

3+2k

Step-by-step explanation:

khan said so

Answer:

All Real x (x not = 9).

Step-by-step explanation:

When x = 9,  f(x) =  9/0 which is undefined.

So the Domain is All Real x, x not = 9.

Answer:

Find the domain by finding where the expression is defined.

Interval Notation: (− ∞,0)∪(0,∞)

Set-Builder Notation:{x|x≠0}

Step-by-step explanation:

The graphs of y = f(x) and the transformed function are illustrations of function transformation

The parent function is given as:

y = f(x)

The lines and curves on the graph cannot be manipulated; however, the description of the function y=f(-x+4)-5 can be given

The transformation of function y = f(x) to y=f(-x+4)-5 is as follows:

Read more about function transformation at:

https://brainly.com/question/1548871

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Linear equations.

Let the number of bicycles = x

and number of tricycles = y

the relationship given is,

x = 5y-1

number of wheels of bicycle = 2x and of tricycles=3y

and other relation is, 2x+3y = 154

so now substituting we get as,

==> 2(5y-1) +3y= 154

10y-2+3y = 154

13y = 154+2

=> y = 12

=> 12*3 = 36 wheels of tricycles

so, 154-36 => 118 wheels of the bicycle.

so the number of bicycles = 118/2 = 59

hence,

==> number of bicycles = 59 and tricycles = 12

Step-by-step explanation:

1.)20x + 100 = 1440

-Let the number of couples be x. So, the total amount paid by all the couple’s are $20x. School paid $100 as security, so the total amount paid is

$ (20x + 100)

2.) 20x = 1440 - 100 ⇒ 20x = 1040

X = 52

3. ) The security money  is $100, so the couples paid $1440- 100 = $1040 in total. As the couples paid $ 20 each than- [tex]\frac{1040}{20}[/tex] = 52

Answer:

y = 28

Step-by-step explanation:

1/4y=7 | Given

y = 28 | Multiplicative property of equality (multiply 7 by the denominator of 1/4y)

Answer:

Step-by-step explanation:

x-3>7, add 3 to both sides

x>10

Answer:

D

Step-by-step explanation:

No the function is not an exponential function as the domain values are not at regular intervals although the range values have a common factor.

The exponential function is a function which is formed by the unit e which is equal to 2.718.

The differences between x-values are  -1, -1, -1, -2 . . . . not a constant difference

The ratios of y-values are 2/8 = 0.5/2 = 0.125/0.5 = 0.25 . . . . a constant difference

The domain values do not have a common difference shows the common factor of the range values which are of no use. So, the function is not exponential.

Hence the table does not show exponential function in any way because the domain values are at regular intervals and the range values have a common factor 0.25.

Learn more about exponential function at https://brainly.com/question/6561461

#SPJ2

Answer:

?????????????????

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex](x-2)(x+2)((x+1)^2\\ \\ (x^2-4)(x+1)^2\\ \\ (x^2-4)(x^2+2x+1)\\ \\ x^4+2x^3+x^2-4x^2-8x-4\\ \\ x^4+2x^3-3x^2-8x-4[/tex]

Answer:

I

Step-by-step explanation:

This is a dotted line so we can automatically eliminate, b, e, g, h,  and j. The shading in greater than, so we can eliminate a, and d.

Now all we have left are c, f and *i,

*(because if converted to y intercept the sign will flip because the y is negative in this equation.)

Now convert to y intercept form (y=mx+b).

Flip the sign because some are negative.

C. y>(-5/2)x+0

F. y>-2x+9

I. y>(4/3)x-(5/3)

Now use rise over run, or you could just look at the b. B is equal to the y-intercept. It can't be 0 or 9, and (-5/3) is equal to -1.67. So isn't that the closest to what the y intercept looks like in the graph?

Answer:

C

Step-by-step explanation:

Answer:

X = 4

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

11x-7=8x+5

3x=12

x=4