Someone help plz and thanks

Someone Help Plz And Thanks

Answers

Answer 1

Answer:

Step-by-step explanation:

Total students = 6 + 6 +8 + 4 + 2 +3 + 7 + 5 = 41

Probability of a chosen student be Physics or Chemistry or both =

[tex]\dfrac{8}{41}+\dfrac{4}{41}+\dfrac{5}{41}=\dfrac{17}{41}[/tex]


Related Questions

Find the perimeter. Simplify the answer.

Answers

Answer:

4u

Step-by-step explanation:

Perimeter of square = u+u+u+u

                                  = 4u

Here is the answer to the question

f(c)=x²-3x
find f (-8)

Answers

Answer:

88

Step-by-step explanation:

Given function:

f(x) = x² - 3x

Find f(-8):

f(-8) = (-8)² - 3(-8) = 64 + 24 = 88

f(-8)

(-8)²-3(-8)64+2488

Help me I don’t get this.

Answers

Answer:

i think its 105

Step-by-step explanation:

what is the mean number of cars owned by a family? Give your answer to 1 decimal place.

Answers

Answer:

Step-by-step explanation:

total # of families=15

families that own 0 cars=2

families that own 1 cars=5

families that own 2cars=4

families that own 3 cars=3

families that own 4 cars=1

so 2+5+4+3+1=15

total# of families/ sum of cars = 15/15=1

Please translate each algebraic expression to English phrase
1. x - 8

2. 13 + 2y

3. 4 ( x+ 5)

4. 7x

5. m + 6

Answers


1. x - 8

2. 13 + 2y

3. 4 ( x+ 5)

4. 7x

5. m + 6
1. Eight less than some number

2. Thirteen plus two times some number (I think)

3. Four times the sum of a number and five

4. Seven times some number or the product of a number and seven (not sure)

5. Six more than a number

Seven friends each bought a movie ticket for $14.95, popcorn for $6.99, and a drink for $2.25. How much did the friends spend in all?

Answers

Answer:

  $169.33

Step-by-step explanation:

Each of the friends spent ...

  $14.95 +6.99 +2.25 = $24.19

The seven friends together spent ...

  7($24.19) = $169.33

there are 16 children and 24 adults what percent are children and what percent are adults

Answers

Answer:

60% adult

40% children

Reasoning:

Add the adults and children first.

Then find the ratios of the children and parent percentages.

16:40 children

24:40 adult

16/40=2/5=0.4=40% children

24/40=3/5=0.6=60% adult

Answer:

40% is children and 60% in adults

Step-by-step explanation:

so if you add the two you have 40, 100% of 40 is 40 and 50% is 20, so we know that the children percent is less than 50, if you go through you will find that 40% of 40 is 16 therefor leaving the rest (aka 60%) to be adults

Solve for x

3-11x=-118

PLEASE HELP WHAT IS X

Answers

Answer:

11

Step-by-step explanation:

You would need to -3 on both sides to get:

-11x = -121.

To find x on it's own you would have to divide by -11 on both sides.

You would get a result of x = 11.

Hope this helps :)

Please help with this math problem! Will give brainliest!! :)

Answers

Answer:

x = 20

y = 70

Step-by-step explanation:

Solve for x:

5x - 20 = 3x + 20

2x - 20 = 20

2x = 40

x = 20°

Solve for y:

x + y = 90°;

(20) + y = 90°

y = 90 - 20

y = 70°

Hope this helps!

CAN SOMEONE HELP ME PLEASE ASAP!

Answers

The answer is P and R

Answer:

Q and R

Step-by-step explanation:

to be similar all sides must have the same scaling factor :

the factor from 2 to 8 is 4.

and the factor from 3 to 12 is also 4.

therefore, these 2 parallelograms are similar.

Estella signed a one-year lease. She pays $720 per month in rent. If she wants to move out three months early, how much money will she owe when she moves out? I assume $2,160 ??

Answers

Answer:

$2160

Step-by-step explanation:

Since she moved out 3 months early, you would do 720x3, since she pays $720 every month. 3x720 = $2160

Select the correct answer.

Which graph best represents a function with zeros of -3, 0, and 2?

Answers

Answer: C

Step-by-step explanation:

The answer is C

The graph C. represents the polynomial with zeros of -3, 0 and 2.

What are zeros of a polynomial?

The zeros of a polynomial p(x) are all the x-values that make the polynomial equal to zero. They are interesting to us for many reasons, one of which is that they tell us about the x-intercepts of the polynomial's graph.

Or we can say that the x- intercept of the graph of the polynomial are the zeros of that polynomial. Thus, the graph with x - intercept -3, 0, 2 represent the required function.

Learn more about zeros of a polynomial here

https://brainly.com/question/10702726

#SPJ2

How to multiply mixed fractions with same denominators.

Answers

Answer:

  multiply the numerators; express that product over the product of the denominators

Step-by-step explanation:

Multiplication of fractions is done the same way regardless of whether the denominators are the same or different.

  [tex]\dfrac{a}{b}\times\dfrac{c}{d}=\dfrac{ac}{bd}[/tex]

The numerator of the product is the product of the numerators.

The denominator of the product is the product of the denominators.

Can you tell me how and what the answer is

Answers

Answer:

-2

Step-by-step explanation:

the formula for finding slope using points (x1, y1) and (x2, y2) is (y2 - y1) / (x2 - x1). using this with the points (0,3) and (1,1) gets us (1-3)/(1-0) = -2/1 = -2. so the slope is -2

Answer:

-2

Step-by-step explanation:

The slope of a line is defined as the difference in y, divided by the difference in x. [tex]m= \frac{\Delta y}{\Delta x} =\frac{3-1}{0-1} = \frac2{-1} = -2[/tex]

For a 100 ponits : 13+(-19)=

ANSWER:

Answers

Answer:

-6

Step-by-step explanation:

#20 i
Find the coordinates of the midpoint of the line segment with the endpoints R(-5, -7) and
S(2, -4)

Answers

Answer:

First, we need to know the relationship between "a" and "c". And "10" is not a co-ordinate. A co-ordinate has 2 or 3 numbers in it like 10,17, or like 10,17,5.

Step-by-step explanation:

5.
Is the data point, P, an outlier, an influential point, both, or neither?

Answers

Answer:

outlier

Step-by-step explanation:

it is way to far away to be any of those other options. that means it is an outlier.

solve pls brainliest

Answers

Answer:

18 square feet

Step-by-step explanation:

hope this helps :)

Answer:

18 ft might be the answer

HELPPPPPPPPPPPPP

A: equilateral and right
B: equilateral and isosceles
C: isosceles and scalene
D: isosceles and right

Answers

Answer:

C. (I think)

Step-by-step explanation:

So, it is definitely not a right triangle so A and D can step out. And it is not equilateral because all sides are not the same length, that means B is out. It might be C.

Suppose a spherical balloon is inflated at the rate of 10 cubic centimeters per minute. How fast is the radius of the balloon increasing when the radius is 5 cm

Answers

Answer: The radius increases by 0.032 cm/minute.

Step-by-step explanation:

The volume, V, of a sphere is V = (4/3)πr^3.

For the volume to increase at a rate of 10cc (cubic centimeters) per minute, the radius must increase such that the additional radius (r)^3 = 10

V = (4/3)πr^3

V = (4/3)π5^3

V = 524 cc

We add 10 cc to have the balloon hold 544 cc.  We calculate the increase in radius:

534=(4/3)*pi*x^3

We can now calculate the new radius, x.

x = 5.032 cm

The radius increased by 0.032 cm/minute.

tatiana had $350. she spent $180 on herself ad the rest on presents for her family.writ an equation to express how much tatiana spent on her family.

Answers

Answer:

$350 - $180 = $170

$180 = T

$170 = F

T = Tatiana

F = Family

Step-by-step explanation:

Answer:

Equation to express how much Tatiana spent on her family

= $(350-180)

Fred buys flags from a manufacturer
for $12.50 dollars and then sells
them in his store for a 26% markup.
What price do his customers pay for
a flag?

Answers

Answer:

15.75

Step-by-step explanation:

26%of12.5

=12.5*26/100

=3.25

customers pay for a flag is 3.25+12.5=15.75

Find the slope of the graph

a. -2
b. -1/2
c. 2
d. 1/2

I'll give correct answer brainliest ​

Answers

Answer:

answer is d

by using rise over run you get 3/6 which is then simplified into 1/2

solve the equation please
142=10+4x+7x
x= what

Answers

Answer:

11

Step-by-step explanation:

142=10+12x

132=12x

11=x

Answer:

x=12

Step-by-step explanation:

Can I get some help on this I have so many assignments to do and I just want to go to sleep

Answers

Hi! It’s me from your other post! Here’s my work for you! It’s been awhile since I’ve done this stuff so I’m really sorry if I get you a bad grade! I just wanted to help out:))

A factory puts 5/8 of a gallon of vinegar into each batch of salad dressing. How many gallons of vinegar will be used in 2 batches?

Answers

Answer:

1 1/4

Step-by-step explanation:

[tex]\frac{5}{8} +\frac{5}{8}=\frac{10}{8}= 1 \frac{2}{8}= 1\frac{1}{4}[/tex]

five eighths plus five eighths equals ten eighths simplified to one and two eighths and simplified again to one and one fourth.

whats the answer (10 points)

Answers

Answer:

x=79 degrees y=22degrees

Step-by-step explanation:

you see it has 2 equal sides, so the triangle is an isosceles triangle. If the triangle is isosceles, then its 2 base angles are equal, that is, x = 79 according to the triangle property, the 3 angles add up to 180 degrees, so you take 180 degrees minus 2 * 79 degrees you get a y angle equal to 22 degrees

Julissa is printing out copies for a work training. It takes 4 minutes to print a color copy, and it takes 2 minutes to print a grayscale copy. She needs to print no fewer than 8 copies within 25 minutes.

Which system of inequalities represents the number of color copies, x, and grayscale copies, y, that Julissa can print to meet her goal?

Answers

Answer:

4x  + 2y  ≤  25   ,      x + y ≥  8     is the required system of inequalities to represent the given situation.

Step-by-step explanation:

Here, let  the number of color copies =  x

Now, the time taken to print each color copy = 4 minutes

⇒Time taken to print x color copies = x times ( Time taken by each copy)

= 4 (x)   = 4x

and let  the number gray scale copies =  y

The time taken to print each gray scale copy = 2 minutes

⇒Time taken to print y gray scale copy = y times (Time taken by each copy)

= 2 (y)   = 2y

Total copies printed = x + y

Maximum time taken to print x  color copies and y grayscale copies

= 4x  + 2y

So, according to the question:

4x  + 2y  ≤  25 ( as maximum allotted time is 25 minutes)

and x + y ≥  8      (as minimum number of copies is 8)

hence, the above system is the required system of inequalities to represent the given situation.

I hope this helps.

An item is regularly priced at $55. Miguel bought it at a discount of 65% off the regular price

Answers

Answer:

$35.75 is the discount price.

Step-by-step explanation:

0.65 x 55 = 35.75

HELP ME HELP ME HELP ME!!! Given f(x) below, find f^-1(x).

Answers

Answer:

[tex]f^{-1}[/tex] (x) = 6 - 4x

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = - [tex]\frac{1}{4}[/tex] x + [tex]\frac{3}{2}[/tex] ( multiply through by 4 to clear the fractions )

4y = - x + 6 ( subtract 6 from both sides )

4y - 6 = - x ( multiply through by - 1 )

- 4y + 6 = x

Change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then

[tex]f^{-1}[/tex] (x) = 6 - 4x

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