A small painting has an area of 400 cm2. The length is 4 more than 2 times the width. Find the dimensions of the painting. Solve by completing the square. Round answers to the nearest tenth of a centimeter.
PLEASE HELP! I WILL MARK AS BRAINLIEST!

Answers

Answer 1

400 = 8x * x

400 = 8x^2

400 / 8 = x^2

root/50 = x

7.1cm = x


Related Questions

Choose the graph of the solution to this inequality.
–6x < 21

Answers

Answer: A

Step-by-step explanation:

c - 12 > -16

c > -4

A

The answer is A.

c - 12 > -16

c > -16 + 12

c > -4


> means the the arrow should be pointed to the right, and should be on the point -4.

help with #2 pls!!!!!!!!!

Answers

Answer:

Third choice

Step-by-step explanation:

Let's see, let's write the numbers in order.

-6,-2,1,1,4,4,14

So we can see that yes, indeed, it could be either -6 or 14.

We can also rule out the first choice and the last choice, because they lack in common sense. -6, being lesser, would not raise the mean, it would lower it. 14, being the greatest, would not lower the mean, it would raise it.

Now let's put our numbers through trial. Find the mean of the whole set.

-6+-2+1+1+4+4+14 = 16

16/7

16/7 is approximately 2.3. We round to the nearest tenth because the numbers in the answers (1.9) are rounded to the nearest tenth.

Now we will exclude 14 to see how much it changes.

-6+-2+1+1+4+4 = 2

2/6 = 1/3

1/3 is approximately 0.3. We can see that the mean has decreased by around 2 just from removing the 14.

Now let's exclude -6 and see how much it changes.

-2+1+1+4+4+14 = 22

22/6 is approximately 3.7. We can see that the mean has increased by around  1.4.

Both the second and the third choice are plausible, but we are looking for the outlier, meaning the one that is further away from the rest of the numbers. The mean decreased by around 2 (which is near 1.9) when 14 is removed, which is greater than 1.4 (or 1), so we can assume that the third choice is the answer.

We can also back this up by finding how much each number is close to the mean. -6 is closer to 2.3 than 14, because if you add 6 to 2.3 (to get the distance between them), it is 8.3, while if you subtract 14 by 2.3, you get 11.7, which is greater than 8.3

Another way to double check this is to see how far away the numbers are from the rest of the numbers. This is not a very accurate way, but it can be useful in double checking. -6 and -2 are only 4 units apart, while 4 and 14 are 10 units apart. 10>4, naturally.

Mrs smith and i went to the shop to creme eggs at 23p each & kinder eggs at 47 peach in bulk. We bought 141 eggs altogether & it came to 48.51 how many creme eggs did we buy ?

Answers

Answer:

Step-by-step explanation:

Mrs smith and i went to the shop to creme eggs at 23p each & kinder eggs at 47 peach in bulk. We bought 141 eggs altogether & it came to 48.51 how many creme eggs did we buy ?

How many fewer throws travelled more than 6 3/4 meters than travelled 6 3/4 meters or less

Answers

Answer:

this is not a complete question cause u did not give full numbers

Step-by-step explanation:

not trying to steal points can u finish the question

1) Calculate the distance between point A: (22,12) and point B: (30,27)​

Answers

Answer:

17

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√(30 - 22)² + (27 - 12)²

√(8)² + (15)²

√ 64 + 225

√289

= 17

I need the answer pliss​

Answers

Answer:

Im sorry never did this before

David uses 1/4 bag of potting soil to plant 6 tomato plants. If he uses the same amount of potting soil for each plant, what fraction of the bag of potting soil will each plant get?
1/24
24
2/3
1 1/2

Answers

Answer:

Step-by-step explanation:

A

find the product of (3x+8)^2

Answers

Answer:

The product is 9x^2+48x+64

Step-by-step explanation:

A rectangle has a length of 12 and a width of 9. What is the
length of the diagonal? Round to the nearest tenth if needed.

Answers

Answer:

15

Step-by-step explanation:

9 squared + 12 squared

Joe runs an M&M's factory and is reviewing the bagging machines. They drop M&M's into bags on a conveyor belt, with 39 M&M's going into each bag. Write an equation for the number of bags 'B' that can be filled from a supply of M&M's 'T'. Write your equation in the form of B=_____________.

Answers

The equation for the number of bags 'B' that can be filled from a supply of M&M's 'T' will be T / 39.

How to explain the equation

The formula to determine how many bags 'B' can be filled with M&M's from a stockpile of 'T', where each bag contains 39 candies, is:

B = T/39

This computation takes the sum of all M&M's in 'T' and divides it by the quantity of candies present in each sack (39), producing the amount of bags 'B' that can be filled.

Learn more about equations on

https://brainly.com/question/2972832

#SPJ1

I need help ASAP please

Answers

Answer:

It's actually B

Step-by-step explanation:

The measures of the sides are x , x , and x√2 . In a 45°−45°−90° triangle, the length of the hypotenuse is √2 times the length of a leg. To see why this is so, note that by the Converse of the Pythagorean Theorem , these values make the triangle a right triangle.

So x = 4 in this example and the side measures would be 4, 4, and 4√2 which is B

help, I don't know what to answer​

Answers

Answer:

The vertices are A, B, and C. Angle C measures 105°.

Step-by-step explanation:

vertices are the corners of a shape. All the angles of a triangle add up to 180°. congruent just means that two shapes are the same.

Problem PLS HELP MY GRADES GOING DOWN

Answers

Answer:

$248

Step-by-step explanation:

given:

4 deposits

$62

solve:

4 × $62= $248

Answer:

$248

Step-by-step explanation:

You can answer it two ways:

1) add 62 + 62 + 62 + 62 = 248

2) multiply 4 * 62 = 248

Answer: $248

John runs 6.5 miles in 30 minutes. If he continues at this rate for 1 hours, determine his rate of change .

Answers

Answer: 13 miles

Step-by-step explanation:

30 min plue 30 min is 1 hour

if he runs 6.5 in 30 you just have to add 6.5 and 6.5 which equals 13

Can anyone help me with this?

Answers

Answer:

307.5

Explanation:

First 65 x 10.50 then 990-682.5

Question 1 of 10
sin = 20/29
find tan 0

Answers

Step-by-step explanation:

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

Cutt/ly.627929

You have already found tan 0 because the answer is 0

What are the values of x and y? y /35​

Answers

Answer:

the X is 35

Step-by-step explanation:

Help me answer this please

Answers

Answer:

y=38 °

Step-by-step explanation:

Answer:38

Step-by-step explanation:

In an arboretum, the heights of five trees were 21 feet, 31 feet, 36 feet, 28 feet,
and 26 feet. What would be the height of the sixth tree if the mean height of the
six trees was 28 feet?

Answers

Answer:

26

Step-by-step explanation:

(21+31+36+28+26+x)/6=28

21+31+36+28+26+x= 28×6

142+x =168

x=168-142

x=26

Solve the equation -5x + 3 = 2x - 1

Answers

Step-by-step explanation:

Given

- 5x + 3 = 2x - 1

or, 2x + 5x = 3 + 1

or, 6x = 4

or, x = 4/ 6

Therefore x = 2 /3

Hope it will help :)❤

Step-by-step explanation:

Subtract

3

3

3

from both sides of the equation

5

+

3

=

2

+

1

5

+

3

3

=

2

+

1

3

2

Simplify

Subtract the numbers

Subtract the numbers

5

=

2

2

3

Subtract

2

2x

2x

from both sides of the equation

5

=

2

2

5

2

=

2

2

2

4

Simplify

Combine like terms

Combine like terms

7

=

2

5

Divide both sides of the equation by the same term

7

=

2

7

7

=

2

7

6

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

=

2

7

What is the diameter of the Orange below ? HINT : D = 2r

Answers

Answer:

umm don't know.....

Step-by-step explanation:

......


14 cm
12 cm
22 cm
Find the area of the trapezoid. and show Work
A. 108 cm
B. 432 cm
C. 60 cm
D. 216 cm

Answers

Answer:

D. 216 cm

Step-by-step explanation:  

1. I assume 14 is a 22 is b and 12 is h

2. Trapezoid Area Formula

[tex]A = \frac{1}{2}(a+b)h[/tex]

3. Plug in numbers

[tex]A = \frac{1}{2}(14+22)12[/tex]

[tex]216 = \frac{1}{2}(14+22)12[/tex]

These word questions confuses me, can someone explain this step by step

Answers

Answer:

[tex]10\pi \: cm[/tex]

Step-by-step explanation:

Please mark as brainliest

A rectangular prism is 114 inch tall, 112 inch wide, and 2 inches long. How many unit cubes with side length of 14 inch does it take to fill the rectangular prism?

Answers

Answer: 9

Step-by-step explanation:

Given

The dimension of a rectangular prism is

[tex]L=2\ in[/tex]

[tex]W=112\ in.[/tex]

[tex]h=114\ in.[/tex]

Volume of Prism [tex]V=L\times W\times h[/tex]

[tex]\Rightarrow V=2\times 112\times 114=25,536\ in.^3[/tex]

The volume of the unit cube

[tex]\Rightarrow V_c=14\times 14\times 14=2744\ in.^3[/tex]

Suppose there are n unit cubes to fit in a rectangular prism

[tex]\Rightarrow n=\dfrac{V}{V_c}=\dfrac{25,536}{2744}=9.306\approx 9[/tex]

Here are the score that Jenna has received on her seven quizzes 16 11 20 16 12 17 18 what is the lower quadrille

Answers

Answer:

12

Step-by-step explanation:

lower quartile is the median of 11, 12, and 16

11,12,16,16,17,18,20
median: 16
lower q: 12

Carlos is helping his grandfather paint the patio in their backyard. What is the area of the patio?

Answers

128 ft. for the square i square it so basically 8x8 and then the area for the triangle is 32 so i added them all together to get 128

A die is rolled 3. What is the probability of getting a 1 on the first roll, a 2 on the second roll, and a 3 on the third roll

Answers

Answer:

The probability of getting 1,2 and 3 after rolling once , second and thrice is

1/6

Step-by-step explanation:

These are all independent events.

The sample space = [1,2,3,4,5,6]

A die has 6 sides

1. If this die is thrown once, the probability of getting a 1 is = 1/6

2. If we roll the dice a second time, the probability of getting a 2 is independent from the first time it was rolled, so the sample space remains the same. The probability is also 1/6

3. If we rolled a 3rd time the probability remains 1/6 also

factorise p-q-x(q-p)​

Answers

Answer:

(1 + x)(p - q)

Step-by-step explanation:

Given

p - q - x(q - p) ← distribute parenthesis by - x

= p - q - qx + px ← rearrange terms in p and terms in q

= p + px - q - qx ( factor first/second terms and third/fourth terms )

= p(1 + x) - q(1 + x) ← factor out (1 + x) from each term

= (1 + x)(p - q)

I need the answer for real fast. Question below

A square has a perimeter of 12x + 52 units. Which expression represents the side length of the square in units?


x + 4

x + 40

3x + 13

3x + 43

Who started the whole link thing anyways?

Answers

Answer:

It's x + 4

Step-by-step explanation:

And I don't know who started this link thing

Hope this helps and have a great day *(:^w^:)

Answer:

It's 3x + 13

Step-by-step explanation:

brainlyest ^(`ω´ )^ψ

i need to talk with you

52/4=13

12x/4=3x

3x+13

WILL GIVE BRAINLIEST AND 5 STAR PLS HELP

Answers

Answer:

The answer is D

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