what is 4.2j+6.7j-5j-5​

Answers

Answer 1

Answer: 5.9j-6

Step-by-step explanation:


Related Questions

what is, v(20)=450(1+0.025)^20

Answers

Step-by-step explanation:

step 1. v(20) = 450(1.025)^20

step 2. 737.3774.

Answer:

20v=737.37739813

Step-by-step explanation:

The histogram gives information about the waiting in minutes

Answers

Answer:

I dont know if that was a question, but that statement is true.

the question is

the incomplete histogram and table give some information about the waiting time in minutes, experienced by patients at a dental surgery. use the histogram to complete the table.

PLEASE HELP ME

In a batch of eggs, 3% were broken. There were 18 broken eggs
How many eggs were there in the batch?

Answers

Answer: 600 eggs

Step-by-step explanation:

Let total number of eggs be x.So, 3% of x were broken and there were 18 broken eggs. We can write this as: 0.03*x =18x=18/0.03x= 600 eggs (answer).

Total number of eggs in the bags are 600.

What is Percentage?

Percentage is a number or ratio that can be "expressed as a fraction of 100".

According to the question,

Percentage of broken eggs =  3%

Number of broken eggs = 3/100 = 0.03

To calculate the total number eggs,

[tex]\frac{3}{100}[/tex] (x) = 18

      x  = 1800/3

      x = 600.

Hence, the total number of eggs in bags are 600.

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What is the radius of the diameter of a circle that is 14 inches?

Answers

Diameter: The length of the circle

Radius: Half of the diameter

If the diameter of the circle is 14 inches, the radius would be 7 inches as the radius is half the diameter

There are only 5 blue cards, 2 green cards and 4 red cards in a pack.
Isabella is going to take at random one card from the pack.
(a) Write down the probability that Isabella will take a blue card.

Answers

Answer:

5/11 or 45 percent, since there are 5 blue cards

The probability that Isabella will take a blue card is 5/11.

What is probability?

Probability is the chance that something will happen, or how likely it is that an event will occur.

Formula for probability

P(E) = total number of favorable outcomes/ total number of outcomes

Where,

P(E) is the probability of any event.

According to the given question

Five blue cards, two green cards and four red cards.

total number of outcomes =  5+ 2 + 4 = 11

For finding the probability of blue card

Total number of blue cards is 5.

total number of favorable outcomes = 5

Therefore,

The probability of getting blue card

= number of favorable outcomes/ total number of outcome

= [tex]\frac{5}{11}[/tex]

Hence, the probability that Isabella will take a blue card is 5/11.

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(6x^2−5x)−(4x^2−3x+4)

Answers

Answer:

2 • (x + 1) • (x - 2)

Step-by-step explanation:

2 times (x + 1) times (x - 2)

Solve the system of linear equations using substitution.
x=7y-9
x+7y=3

Answers

Answer:

2. x = 3-7y

Step-by-step explanation:

Please someone actually help me with this

Answers

Answer:

π radians

Step-by-step explanation:

The angle subtended at the centre by an arc, has the same measure as the arc subtending it, then

angle subtended = measure of arc = π radians

17
Two boys are in a weight lifting contest to see who is stronger. Matt lifts 500 pounds, Jamie lifts 2000 newtons.
Who is stronger? Show what you did to get your answer.
[IN=4.480]

Answers

Answer:Matt

Step-by-step explanation:

this is Jamies weight

449.618 Pounds force (lb)

Simplify the expression 6x-9+3x+2 .

Answers

Answer:

9x - 7

Step-by-step explanation:

6x - 9 + 3x + 2

= (6x + 3x) (- 9 + 2)

= 9x - 7

Solve for the area of this triangle, explanation would be greatly appreciated!

Answers

9514 1404 393

Answer:

  13√731 ≈ 351.48 cm²

Step-by-step explanation:

When given three sides of a triangle, there are a number of ways that the area may be calculated. Perhaps the most straightforward is the use of Heron's formula.

Where s is the semi-perimeter, the area is given by ...

  A = √(s(s -a)(s -b)(s -c)) . . . . . . . . s = (a+b+c)/2

Here, the value of s is ...

  s = (30 +30 +26)/2 = 43

  A = √(43(13)(13)(17)) = 13√(43·17)

  A = 13√731 ≈ 351.48 . . . . . square centimeters

_____

Additional comments

This triangle is isosceles, so the altitude can be found from the Pythagorean theorem:

  h² +13² = 30²

  h = √(900 -169) = √731

Then the area is ...

  A = (1/2)bh = (1/2)(26 cm)(√731 cm) = 13√731 cm²

__

You can also find one of the angles using the Law of Cosines, then find the area from ...

  Area = (1/2)a·b·sin(C) . . . . . . for any two sides a, b, and enclosed angle C

__

Ultimately, all of these methods are equivalent to Heron's formula.

An industrial factory makes 4 3/5 yards of
chain every minute. The cost of each yard of
chain is $6.59. What is the total cost for all
chain produced in 10 minutes?

Answers

In 10 mins 46 chains
46x 6.59 = $303.14

The total cost for all chains produced in 10 minutes will be $303.14.

What is the rate?

The rate is the ratio of the amount of something to the unit. For example - If the speed of the car is 20 km/h it means the car travels 20 km in one hour.

An industrial factory makes 4 ³/₅ yards of chain every minute. Then the rate is given as,

Rate = 4 ³/₅

Rate = 4 + 3/5

Rate = 4 + 0.60

Rate = 4.60 yards per minute

The cost of each yard is $6.59. Then the cost per minute is given as,

⇒ $6.59 x 4.60

⇒ $30.314 per minute

Then the total cost for all chains produced in 10 minutes will be given as,

⇒ $30.314 x 10

⇒ $303.14

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Evaluate the function f(x)=2x-7 using the values given below. f(-3)=

Answers

Answer:

-13

Step-by-step explanation:

f(x)=2x-7

f(-3)=2(-3)-7=-6-7=-13

Which number line model represents the expression -2 + 4.5 ?

Answers

Answer:

the second pic. A

Step-by-step explanation:

Cincinnati is about 225 miles from Cleveland. What is the distance between these cities on the map?


10 millimeters = 25 miles

Answers

Answer:90

Step-by-step explanation:

The distance between these cities on the map is 90 mm.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Cincinnati is about 225 miles from Cleveland and on scale 10 millimetres is equal to 25 miles.

The distance on the map will be calculated as,

25 miles = 10 mm

1 mile = 10 / 25 mm

225 miles = ( 225 x 10 ) / 25

225 miles = 90 mm

Therefore, the distance between these cities on the map is 90 mm.

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PLEASE HELP IM GONNA FAIL WILL GIVE BRIANLESS

Answers

Answer:

8) 1,965,600 passwords

9) 1/8

Step-by-step explanation:

8) 9 · 8 · 7 · 6 ·26 ·25  = 1,965,600

9) 1/2 · 1/2 · 1/2 = 1/8

A school hall costs £200 to hire.
Parents get a 10% discount.
30 parents share the cost equally.
How much does each parent pay

Answers

Answer:

£6

Step-by-step explanation:

The computation of the each parent pay is shown below;

But before that the cost of hall after considering the discount is

= £200 - 10% of £200

= £200 - £20

= £180

Now there are 30 parents

So each parent pay is

= £180 ÷ 30 parents

= £6

Find the values of x and y.

Answers

Answer:

x=10 y=20

Step-by-step explanation:

из 300 насосов 60 подтекает Найдите вероятность купить хороший насос​

Answers

80% шанс получить хороший насос Конрад

Here is a list of numbers.
32 29 30 37 34 33 31
Tanya thinks that to work out the median, she simply needs to find
the middle number. So she says that “37" is the median for this list of numbers.
Tanya's answer is not correct.
a) Describe what is wrong with her method.
b) Work out the median of the numbers in the list.

Answers

Answer:

a). To find the median from a set of numbers, you need to arrange them from ascending order (smallest to biggest), and then you need to find the number in the middle

b). 32

Step-by-step explanation:

b). Smallest to biggest

29, 30, 31, 32, 33, 34, 37

From the set of numbers given, we can clearly see that 32 is in the middle.

Help me I can’t understand this Q

Answers

Answer:

y - 7 = - [tex]\frac{5}{2}[/tex] (x + 2)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = - [tex]\frac{5}{2}[/tex] and (a, b ) = (- 2, 7 ) , then

y - 7 = - [tex]\frac{5}{2}[/tex] (x - (- 2) ) , that is

y - 7 = - [tex]\frac{5}{2}[/tex] (x + 2)

Y - 7 = - 5/2 that’s should help

Paige earns $15.50 per hour and works 20 hours each week. She gets a 10% raise and decides to save 20% of her paycheck for a new phone. How much money will Paige have saved after 4 weeks?

A. 297.60
B. 68.20
C. 136.40
D. 272.80​

Answers

Answer: b

Step-by-step explanation:

Determina todo lo que falta a los triángulos rectangulos aplicando las funciones trigonométricas.

Ayúdenme por favor con este ejercicio matemático :(​

Answers

Answer:

b

Step-by-step explanation:

agree or desagree? short question​

Answers

Answer:

im in the middle of both sides

Step-by-step explanation:

Tia's dessert cost her $2.50 plus 0.15 per topping..

Proportional or non-proporitonal?​

Answers

Answer: Non-proportional

This is non- proportional


A recipe calls for 1/4
cup of milk for every 1 1/2
cups of flour. How many cups of flour will you need for 1/2
cup of milk?

Answers

Answer:

3 cups flour

Step-by-step explanation:

set up a proportion and cross-multiply:

1/4 = 1/2

3/2      f

1/4f = 3/4

4f = 12

f = 3

Answer:

3 cups

Step-by-step explanation

basically if 1/4 cup of milk is for 1 1/2 cups of flour ------ 1/2 cup is twice the amount that a quarter cup is because a 1/4 cup + a 1/4 cup = 1/2 cup so you double the amount of flour too and 1 1/2 + 1 1/2 is 3 cups of flour.

1/4 + 1/4 = 1/2 (milk)

1 1/2 + 1/12 = 3 (flour)

Suppose a student picks 3 points at random from Q, R, S, T, W shown below. Find the probability that these randomly chosen points are noncollinear

Answers

Do u have the pic from the sheet of it ??

The length of a rectangle is

8 inches longer than the

width. If the ratio of the

length to perimeter is 5:16,

what is the area of the

rectangle?

Answers

Answer:

Step-by-step explanation:

The area of the rectangle is 240 square inches if the length of a rectangle is  8 inches longer than the width. If the ratio of the length to the perimeter is 5:16.

What is the area of the rectangle?

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

It is given that:

The length of a rectangle is  8 inches longer than the width. If the ratio of the length to the perimeter is 5:16

As we know, the two-dimensional geometry in which the angle between the adjacent sides is 90 degrees. It is a type of quadrilateral.

Let l and w be the length and width of the rectangle:

l = 8 + w

w = l - 8

l/P = 5/16  (the length to the perimeter is 5:16)

P is the perimeter of the rectangle.

P = 2(l + w)

l/[2(l + w)] = 5/16

16l = 10(l + w)

8l = 5(l + l - 8)

8l = 10l - 40

2l = 40

l =20 inches

w = 20 - 8 = 12 inches

Area = 20x12 = 240 square inches

Thus, the area of the rectangle is 240 square inches if the length of a rectangle is  8 inches longer than the width. If the ratio of the length to the perimeter is 5:16.

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7x² 10

what is the value of the expression when x=6​

Answers

The value would be 2,520

Answer:

2250

Step-by-step explanation:

X =6

7x2 10

7*(6)2 *10

7*36* 10

225*10

2250

PLEASE HELPPPP!!!!!!!!!!

Answers

Answer:

8x15x12=1440

Step-by-step explanation:

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