How do I solve this and answer?

How Do I Solve This And Answer?

Answers

Answer 1

Step-by-step explanation:

at first solve first triangle with Pythagorean solving witch it c²=a²+b²

you have to change a bit so it will be c²-b²=a²

you start with 8 and 10 triangle and then you get line which is in the middle and yo udo just the same with triangle 8 and the solved side and you get x in the second triangle you have to use c²-a²=b²


Related Questions

what is the inverse of A(r)=15+3r ? ​

Answers

Answer:

[tex] \frac{r}{3} - 15[/tex]

Step-by-step explanation:

Swap places with A(r) and r so we have

[tex]r = 15 + 3a(r)[/tex]

Solve for a(r).

[tex] \frac{r}{3} = 15 + a(r)[/tex]

[tex] \frac{r}{3} - 15 = a(r)[/tex]

Determine if segment AB is tangent to the circle.

Answers

Answer: Segment AB is tangent to the circle

Step-by-step explanation:

3 sides are 16, 20, and 12

If angle a is 90 then ab is tangent

now check using Pythagorean theorem

since 12^2 + 16^2 =20^2, this means angle a is a right angle meaning segment AB is tangent to the circle

3x-4=8 what is the value of X

Answers

Answer:

x = 4

Step-by-step explanation:

Given

3x - 4 = 8 ( add 4 to both sides )

3x = 12 ( divide both sides by 3 )

x = 4

Maria's Pizza Palace offers 4 types of crust, 7 toppings, and 6 kinds of cheese for the mega calzone. How many different mega calzones can be made if a mega calzone contains 5 different toppings and 3 different cheeses

Answers

Answer:

210 different mega calzones can be made.

Step-by-step explanation:

Fundamental counting principle:

States that if there are p ways to do a thing, and q ways to do another thing, and these two things are independent, there are p*q ways to do both things.

Additionally:

The order in which the toppings and the cheeses are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

Toppings:

5 from a set of 7. So

[tex]C_{7,5} = \frac{7!}{5!2!} = 21[/tex]

Cheeses

3 from a set of 6. So

[tex]C_{6,3} = \frac{6!}{3!3!} = 20[/tex]

How many different mega calzones can be made if a mega calzone contains 5 different toppings and 3 different cheeses?

Toppings and cheeses are independent, and thus, by the fundamental counting principle:

21*20 = 210

210 different mega calzones can be made.

An auto insurance company concludes that 30% of policyholders with only collision coverage will have a claim next year, 40% of policyholders with only comprehensive coverage will have a claim next year, and 50% of policyholders with both collision and comprehensive coverage will have a claim next year. Records show 60% of policyholders have collision coverage, 70% have comprehensive coverage, and all policyholders have at least one of these coverages. Calculate the percentage of policyholders expected to have an accident next year.

Answers

Answer:

40% of policyholders are expected to have an accident next year

Step-by-step explanation:

Given the data in the question;

P( collision coverage ) = 60% = 0.6

P( comprehensive coverage ) = 70% = 0.7

Now, we make use of the Law of addition of probability, so

P( collision coverage and comprehensive coverage ) = P( collision coverage )  + P( comprehensive coverage ) - P( collision coverage or comprehensive coverage )

P( collision coverage and comprehensive coverage )  = 0.6 + 0.7 - 1

P( collision coverage and comprehensive coverage ) = 0.3

Now,

P( comprehensive coverage only ) = P( comprehensive coverage ) - P( collision coverage and comprehensive coverage )

P( comprehensive coverage only ) = 0.7 - 0.3

P( comprehensive coverage only ) = 0.4

And

P( collision coverage only) = P( collision coverage ) - P( collision coverage and comprehensive coverage )

P( collision coverage only) = 0.6 - 0.3 = 0.3

Next  we make use of the Law of total probability;

P( accident ) = [P( accident ║ collision coverage only) × P( collision coverage only)] + [P( accident ║ comprehensive coverage only) × P( comprehensive coverage only)] + [P( accident ║ collision coverage and comprehensive coverage only) × P( collision coverage and comprehensive coverage only)]

so we substitute in our values;

P( accident ) = [ 30% × 0.3 ] + [ 40% × 0.4 ] + [ 50% × 0.3 ]

P( accident ) = [ 0.3 × 0.3 ] + [ 0.4 × 0.4 ] + [ 0.5 × 0.3 ]

P( accident ) = 0.09 + 0.16 + 0.15

P( accident ) = 0.4 or 40%

Therefore,  40% of policyholders are expected to have an accident next year

Low concentrations of EDTA near the detection limit gave the following dimensionless instrument readings: 175, 104, 164, 193, 131, 189, 155, 133, 151, and 176. Ten blanks had a mean reading of 50.0. The slope of the calibration curve is 1.75 x 10^-9 M^-1.

a. Estimate the signal detection limit for EDTA.
b. What is the concentration detection limit?
c. What is the lower limit of quantification?

Answers

Answer:

Step-by-step explanation:

From the given information:

The mean of the readings is:[tex]=\dfrac{175+104+164+193+131+189+155+133+151+ 176}{10}[/tex]

[tex]= \dfrac{1571}{10}[/tex]

= 157.1

The standard deviation (SD) can be computed by using the expression:

[tex]SD =\sqrt{ \dfrac{\sum_f(x_i - \bar x)^2}{n-1}}[/tex]

[tex]SD =\sqrt{ \dfrac{(175-157.1)^2+(104-157.1)^2+(164-157.1)^2+...+(176-157.1)^2}{10-1}}[/tex]

Standard deviation = 28.195

FOr the EDTA complexes;

The signal detection limit = (3*SD) + [tex]y_{blanks}[/tex]

= (3*28.195) + 50

= 84.585 + 50

= 134.585

We need to point out that the value of the calibration curve given is too vague and it should be (1.75 x 10^9 M^-1) as oppose to  (1.75 x 10^-9 M^-1)

The concentration of detection limit is:

[tex]=\dfrac{3 \times SD}{slope }[/tex]

[tex]=\dfrac{3 \times 28.195}{1.75 \times 10^{9} \ M^{-1} }[/tex]

[tex]\mathbf{= 4.833\times 10^{-8} \ M}[/tex]

The lower limit of quantification is:

[tex]=\dfrac{10 \times SD}{slope }[/tex]

[tex]=\dfrac{10 \times 28.195}{1.75 \times 10^{9} \ M^{-1} }[/tex]

[tex]\mathbf{= 1.611 \times 10^{-7} \ M}[/tex]

Giải phương trình : y' - xy = x^{3} + x. Điều kiện y(1) = 1

Answers

Все детали на приложенном фото.

A rocket is launched from the ground and travels in a straight path. The angle of inclination of the rocket's path is 1.2 radians. (That is, the rocket's path and the ground form an angle with a measure of 1.2 radians.)]

Required:
a. What is the slope of the rocket's path?
b. If the rocket has traveled 85 yards horizontally since it was launched, how high is the rocket above the ground? _____yards.
c. At some point in time, the rocket is 313 yards above the ground. How far has the rocket horizontally (since it was launched) at this point in time? _____yards

Answers

Answer:

a)[tex]S=2.57[/tex]

b)[tex]H=203.2yard[/tex]

c)[tex]X=121.79yards[/tex]

Step-by-step explanation:

From the question we are told that:

Angle [tex]\theta=1.2=68.755^o[/tex]

a)

Generally the equation for Slope is mathematically given by

 [tex]S=tan \theta[/tex]

 [tex]S=tan 68.755[/tex]

 [tex]S=2.57[/tex]

b)

Given the right Angle triangle with horizontal distance [tex]x=85yard[/tex]

Generally the equation for Height traveled is mathematically given by

 [tex]H=tan\theta*x[/tex]

 [tex]H=2.57*85[/tex]

 [tex]H=218.45[/tex]

 [tex]H=203.2yard[/tex]

c)

Generally the equation for Horizontal Distance traveled at 313 height traveled is mathematically given by

[tex]X=\frac{313}{tan65.75}[/tex]

[tex]X=\frac{313}{2.57}[/tex]

[tex]X=121.79yards[/tex]

Using the projectile principle, the slope of the rockets path, height above the ground and the distance traveled at a height of 313 yards would be 2.57, 218.63, 121.69 respectively.

Given the Parameters :

Angle of inclination = 1.2 radian

Converting to degree :

θ = 1.2 rads × 180/π = 68.755°

A.)

The slope of the rocket's path :

Slope = tanθ

Slope = tan(68.755) = 2.57

B.)

Horizontal distance, = distance along the x-axis = 85 yards

Vertical distance = height = distance along y-axis, y

y = tanθ × x

y = slope × x

y = tan(68.755) × 85

y = 218.63 yards

C.)

Vertical distance, y = 313 yards

From :

[tex] y = x tan\theta [/tex]

[tex] x = \frac{y}{tan\theta} [/tex]

[tex] x = \frac{313}{tan(68.755°)} [/tex]

x = 121.69 yards

Learn more :https://brainly.com/question/22983912

-7x - 3 equals 5x + 3
solve for x

Answers

The answer: x= -1/2

-7x-3=5x+3

-3=12x+3

-6=12x

-6/12=12x/12

x=-6/12
Simplify to x= -1/2

Answer:

x = -0.5

Step-by-step explanation:

-7x-3=5x+3

+7x       +7x

-3=12x+3

-3        -3

-6=12x

x=-0.5

Sally works 40 hours a week and makes $30 an hour, but her kids are in child care each day and the day care center charges her $70 per day. If you deduct her child care expenses, how many dollars per hour does she actually make? (Assume Sally works five days per week.)​

Answers

Answer:

Sally will earn $21.25 per hour after she removes daycare charges from her total earnings.

What does Sally earn each week?

Let's start by solving how much money Sally earns per week.

To find this value, we will find the product of 40 hours per week and 30 dollars per hour.

[tex]40\times30=1200[/tex]

We now know that Sally makes $1,200 a week without deducting the daycare charges per day.

However, we know we need to deduct 70 dollars for each day that Sally works. Since she works for five days a week, we will find the product of 70 dollars per week and five days a week.

[tex]70\times5=350[/tex]

Therefore, the daycare charges $350 per week.

What does Sally take home each week?

Finally, we need to subtract the daycare charges from the amount of money that Sally earns to find how much she actually makes in a week.

[tex]1200-350=850[/tex]

Therefore, for forty hours of work that Sally works each week, she earns $850.

However, we are not done. The question asks us to find how many dollars per hour does she actually make? Therefore, we need to find the quotient of 850 dollars and 40 hours per week.

[tex]\displaystyle \frac{850}{40}=21.25[/tex]

Therefore, Sally earns $21.25 each hour after deducting daycare costs.

What is the sum of -2 and -18

Answers

the sum is -20 have a great day

Answer:

-2+-18 = -2 - 18= -20

hope that helped

how to do 10 divded by 50

Answers

Answer:

0.2

Step-by-step explanation:

10 divided by 50

[tex] = \frac{10}{50} [/tex]

[tex] = \frac{1}{5} [/tex]

= 0.2 (Ans)

0.2 is the correct answer

You deposit $10,000 in an account that pays 4.5% interest compounded quarterly. Find the future value after one year. ​

Answers

Answer:

11800

Step-by-step explanation:

4.5%=0.045

0.045x10,000=450

450x4(quarterly)=1800

10,000+1800= 11800

Answer:

After 1 year, $10,457.65

Step-by-step explanation:

P = $ 10, 000

r = 4.5% = 0.045

T = 1 year

n = 4 ( compounded quarterly )

      [tex]A = P( 1 + \frac{r}{n})^{nt}[/tex]

         [tex]= 10000( 1 + \frac{0.045}{4})^{4 \times 1}\\\\=10000 \times 1.01125^{4}\\\\= 10000 \times 1.04576508633\\\\= 10457.6508633\\\\= \$ 10, 457.65[/tex]

HELP PLEASE 20points!!!
At a high school, 9th and 10th graders were asked whether they would prefer
robotics or art as an elective. The results are shown in the relative frequency
table.

Answers

Answer:

61%

Step-by-step explanation:

We can see that out of all the people that were surveyed, 54% were 10th graders. Since 33% out of all the ones surveyed were 10th graders that chose robotics, the fraction would be 33/54 which is 0.611.

This is 61% approx.

Answer:

61%

Step-by-step explanation:

A P E X

Simplify this algebraic expression.
Z-4/4+8
O A. Z+7
O B. z+ 9
O c. z-3
O D. Z-7

Answers

Answer:

Z +7

Step-by-step explanation:

Z-4/4+8

Divide first

Z -1 +8

Add and subtract

Z +7

Suppose that IQ scores have a bell-shaped distribution with a mean of 97 and a standard deviation of 17. Using the empirical rule, what percentage of IQ scores are between 46 and 148

Answers

Answer:

99.7% of IQ scores are between 46 and 148.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean of 97, standard deviation of 17.

What percentage of IQ scores are between 46 and 148?

97 - 3*17 = 46

97 + 3*17 = 148

Within 3 standard deviations of the mean, so:

99.7% of IQ scores are between 46 and 148.

the hull speed of a boat is approximated by the function

where l is the hull length in feet an v is the hull speed knots.​

Answers

Answer:

sk,m

Step-by-step explanation:

Answer:

a=1.34

b=-10

>10

Step-by-step explanation:

A line passes through (1, - 1) and (3, 5). What is the equation of the line in slope-intercept form?​

Answers

Answer: a+b+c=0 and 3a+5b+c=0

Step-by-step explanation:

If you find a solution to these equations, you will find an equation of your line. Please notice that (a,b,c) defines the same line as (ka,kb,kc) and for any non-zero k, and a=b=c=0 defines no line equation at all. Now you can take a=1 and solve for b and c, or take b=1 and solve for a and c, or take c=1 and solve for a and b, at least one of these will work.

2³ x 6 ÷ 12 =









4 + (5² - 2³) =

Answers

Answer:

The first one is 4

The second on is 21

Answer:

12 ÷12 = 1

Step-by-step explanation:

hsjshxudbdodbdgekddvdke

Four veterinarians at an animal clinic were surveyed about the type of animals they had seen as patients in a particular week. The results of the survey are shown in the table.
Veterinarian
Dr. Greene
Dr. Fluke
Dr. Johansen
Dr. Ponce

Type of animal)
dog)
cat)
bird)

Dr. Greene)
Dog) 77
Cat) 56
Bird) 0
Total) 133

Dr. Fluke
Dog) 64
Cat) 54
Bird) 7
Total) 125

Dr. Johansen
Dog) 59
Cat) 30
Bird) 21
Total) 110

Dr. Ponce
Dog) 39
Cat) 52
Bird) 16
Total) 107

TOTAL animals
Dog) 239
Cat) 192
Bird) 44
Total) 475
Of the patients that are cats, what percent were seen by Dr. Fluke? Express your answer to the nearest whole percent.

Answers

Answer:

28.125%

Nearest whole percent: 28%

Step-by-step explanation:

54/192 = .28125

move decimal to the right (two times)

28.125%

Using the percentage concept, it is found that 28% of the patients that are cats were seen by Dr. Fluke.

What is a percentage?

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

[tex]P = \frac{a}{b} \times 100\%[/tex]

In this problem, 54 out of 192 cats were seen by Dr. Fluke, hence the percentage is given by:

[tex]P = \frac{54}{192} \times 100\% = 28.1\%[/tex]

Rounding to the nearest percent, 28%.

More can be learned about the percentage concept at https://brainly.com/question/10491646

#SPJ2

Refer to the Lincolnville School District bus data. Information provided by manufacturers of school buses suggests the mean maintenance cost per year is $4,400 per bus with a standard deviation of $1,000. Compute the mean maintenance cost for the Lincolnville buses. Does the Lincolnville data seem to be in line with that reported by the manufacturer? Specifically, what is the probability of Lincolnville’s mean annual maintenance cost, or greater, given the manufacturer’s data?

Answers

Answer:

Step-by-step explanation:

Add all of the Maintenance costs up, divide by 80. (the number of costs).

Excel formula =SUM(F2:F81)  364151.00/80 = 4551.8875 Rounded to 4552 is your answer.

I need help I’ll mark u as brainlest

Answers

Answer:

V = 6 in ^3

Step-by-step explanation:

The formula for volume is

V = Bh where B is the area of the base

The base is a triangle and the height is 2 inches

B = 1/2 bh where b is 3 and h is 2

B =1/2 (3)*2 = 3 in^2

V = 3 *2

V = 6 in ^3

Answer:

[tex]V=6[/tex] cubic inches

Step-by-step explanation:

The Volume formula for a triangular prism is [tex]V=\frac{1}{2} bhl[/tex]

[tex]V=\frac{1}{2} (3)(2)(2)[/tex]

[tex]V=\frac{1}{2} (12)[/tex]

[tex]V=6[/tex]

Hope this helps

19. Which of the following would best be solved using factoring the difference of squares?
O x^3 + 5x^2 - 9x - 45 = 0
O 3x² + 12x = 8
O x^2 - 25 = 0
O x^2 + 3x – 10 = 0


Please hurry!

Answers

Answer:

x² + 3x - 10 = 0

x² - 25 = 0

Can someone help 12 points on the line

Answers

Answer:

x=6

Step-by-step explanation:

We can write this as a ratio

x        9

---- = --------

10       15

Using cross products

15x = 10*9

15x = 90

Divide by 15

15x/15 = 90/15

x =6

Please help is for now :(

Answers

Answer:

d

Step-by-step explanation:

d part it is. this is the answer


For the straight line defined by the points (2,57) and (4,83), determine the slope (m) and y-intercept (b).

Answers

Step-by-step explanation:

the answer is in the image above

BC=
Round your answer to the nearest hundredth.

Answers

U can look online there are apps that give u the answers or look on safari!

Answer:

1.71 = BC

Step-by-step explanation:

take 70 degree as reference angle

using cos rule

cos 70 = adjacent / hypotenuse

0.3420 = BC / 5

0.3420*5 = BC

1.71 = BC

Use the order of operations to simplify the expression
9²-72+6²•8-3

Answers

Answer:

294

Step-by-step explanation:

Use the order of operations or PEMDAS

Parentheses

Exponents

Multiply

Divide

Add

Subtract

Answer: 294

Explanation: PEMDAS

Write 6.7 multiple 10 in expanded form

Answers

Answer:

(6×10) + (0.7×10)

60+7=67

Tìm cực trị của hàm số
z=x^{4} - 8x^{3} + 16x^{2} + y^{2} - 2y +1

Answers

Answer:

do it yo fawkin self pluck pluck

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