Can someone help with these 2 questions? I will mark the person who helped me brainiest

Answer:

it's B.

Step-by-step explanation:

manuel knows that doubling either the width or length of a rectangle will double its area

Answer:

Step-by-step explanation:

1/5³

1

1/2⁵

4

1

y⁴/x²

Answer:

The sweater cost 30 dollars.

Step-by-step explanation:

Set up a proportion

x/510 = 250/4250        Multiply both sides by 510

x = 250 * 510/4250      multiply 250 * 510

x = 127500 / 4250        Divide by 4250

x = 30

try filling out the table.

4250                250 dollars

425                   25   dollars

425/25               1     dollar

17                        1     dollar

17*3                     3   dollars

51                        3   dollars

51*10                   30 dollars

510                      30 dollars.

This question is incomplete, the complete question is;

Refer to the Exhibit Student Grades. A professor at a local university noted that the grades of her students were normally distributed with a mean of 73 and a standard deviation of 11.

The professor has informed the class that 7.93 percent of her students received grades of A. What is the minimum score needed to receive a grade of A

Answer:

the minimum score needed to receive a grade of A is 88.51

Step-by-step explanation:

Given the data in the question;

Let x represent the grades of the students that were normally distributed with mean μ = 73 and standard deviation σ = 11.

so, The professor has informed the class that 7.93 percent of her students received grades of A

the minimum score needed to receive a grade of A will be:

P( X > x ) = 7.93 %

P( X > x ) = 0.0793

1  - P( X ≤ x ) = 0.0793

- P( X ≤ x ) = 0.0793 - 1

- P( X ≤ x ) = - 0.9207

P( X ≤ x ) = 0.9207

⇒ P( X-μ/σ ≤ x-μ/σ ) = 0.9207

so, x-μ/σ = InvNormal( 0.9207 )  

x-μ/σ = 1.41

(x - 73) / 11 = 1.41

(x - 73) = 1.41 × 11

(x - 73)  = 15.51

x = 15.51 + 73

x = 88.51

Therefore, the minimum score needed to receive a grade of A is 88.51

Answer:

The last answer D.

Step-by-step explanation:

There is a short trick that I just used to answer this question, all you have to do is add 12 plus 5 to see how many 1/12ths you would have and then add up all the answer options until you get to 17, and the only one that does is the last one, D.

Hope this helps :)

Answer:

7:04 p.m.

Step-by-step explanation:

Answer:

7:04

Step-by-step explanation

12-8 + 4

5:52 + 0:08 = 6:00

6:00 + 1:00 + 7:00

7:00 + 0.04 = 7:04

Answer:

yes

Step-by-step explanation:

x=60° because if 150°=90°+60° so a line is 180° consequently

90°+30°+x=180°

120°+x°= 180°

x°= 180°-120°= 60°

Answer:

Surprisingly someone asked the same question.

Step-by-step explanation:

Credit to the person who actually answered.

Answer:

Answer C.

Step-by-step explanation:

The class sells them for $2.95, assuming $0.95 manufacturing cost per, leaving $2.00 profit per bag. If they sell 900-1000 packages at $2.00, it leaves $1800-$2000 profit.

Answer:

if you see they have 2.95 and 0.95 you need to combert to a decimal and then you need to subtract 900 and 1,000

Step-by-step explanation:

and oviosly is a 900

Answer:

(i)The length of room = 5.5 m and width of the room = 4 m

The length of room with verandah = 5.5 + 2.25 + 2.25 = 10 m

The width of room with verandah = 4 + 2.25 + 2.25 = 8.5 m

Area of verandah = Area of room with verandah – Area of room without verandah = Area of ABCD – Area of EFGH = (AB x AD) – (EF x EH) = (10 x 8.5) – (5.5 x 4) = 85 – 22 = 63 m2

(ii) The cost of cementing 1 m2 the floor of verandah = Rs 200 The cost of cementing 63 m2 the floor of verandah = 200 x 63 = Rs 12,600

Answer:

number 2 + 4i is one of the root to the quadratic equation x 2 + bx + c = 0, where b and c are real numbers. a) Find b and c b)

Step-by-step explanation:

Answer:

8.5

Step-by-step explanation:

Twice the difference of a number and 6 equals 5 is written algebraically as 2(x-6)=5, where x is the number. Solving for x:

2(x-6)=5

(x-6)=5/2

x=6+5/2

x=17/2

So the number is 17/2, or, expressed as a decimal number, 8.5

Answer:

p=39/45=13/15

Step-by-step explanation:

Answer:

QR and ST

Explanation:its right

Answer:

What is the question??????????

your answer is -7+16i, because 4-11=-7 and 7i+9i is 16i

Answer:

84 Hamburgers

Step-by-step explanation:

Hamburger = x

Cheeseburger = 2x

x+2x = 252

252/3 = x

x = 84

Hope this helps! (:

Answer:

$4918

Step-by-step explanation:

first income must be divided according to tax bracket

2% tax on first 3000 income= 2% of $3000=$60

3% tax on income after first 3000 but upto 5000= 5000-3000= $2000

=3% of 2000= $60

5% tax on income after second 5000 but upto 12000= 17000-5000

=12000 5% of $12000= $600

Lastly, 5.75% income over 17000=

90000-17000= $73000 so, 5.75 % of 73000= $4197.5

tax= $60+60+600+4197.5

= $4917.5

= $4918

Answer:

Step-by-step explanation:

Prove that The two triangles are congruent

Find the measure of angle C

Given

Opposite angles are corresponding to the sides.

Therefore the angles opposite to congruent sides are also congruent:

Answer:

Day 1=15 Day 2=30 Day 3=45 Day 4= 60 Day 5= 75. The expression is N+15

Step-by-step explanation:

The complete table:

Days                  1    2     3    4     5

Total samples  15  30  45  60   75

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Number of bacteria samples analyze each day = 15

The equation for the number of bacteria analyzes after x days.

B = 15x

Now,

x = 1, B = 15

x = 2, B = 30

x = 3, B = 45

x = 4, B = 60

x = 5, B = 75

Thus,

Days                  1    2     3    4     5

Total samples  15  30  45  60   75

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

Answer:

b = 12

Step-by-step explanation:

First, distribute 3/4 to both terms in the parentheses:

3 = 3/4(b - 8)

3 = 3/4b - 6

Now, solve for b:

9 = 3/4b

12 = b

So, the answer is b = 12

Answer:

12

Step-by-step explanation:

3 = 3/4 x (b-8)

Distribute 3/4 through the parentheses

3 = 3/4 b - 6

Multiply both sides of the equation by 4

12 = 3b - 24

Move the variable to the left - hand side and change its sign

-3b = -24 - 12

Calculate the difference

-3b = -36

Divide both sides of the equation by -3

B = 12

Answer:

depende de cuantos libros sean y cuanto tiene cada uno de los libros

Answer:

Oof - Use Khan academy

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

C is a multiple of 4 because you can multiply an integer by 4 to get 32.

8 * 4 = 32

Answer:

D ko alam hahahahhahaahahahahahahahahahahahahahahahaaha

Answer:

Step-by-step explanation:

Answer:

269gallons

Step-by-step explanation:

115/6=19.16

19.16*14=268.33 or round up to 269