The diagram shows a square with perimeter 40 cm.
7 cm
Work out the percentage of the area inside
the square that is shaded.
4 cm

The Diagram Shows A Square With Perimeter 40 Cm.7 CmWork Out The Percentage Of The Area Insidethe Square

Answers

Answer 1

Answer:

55 cm²

Step-by-step explanation:

side length of square = perimeter/4 = 40/4 = 10 cm.

area of square = side x side = 10 x 10 = 100 cm²

area of triangle #1 = 1/2bh = 1/2(3)(10) = 15

area of triangle #2 = 1/2bh = 1/2(6)(10) = 30

100 - 15 - 30 = 55 cm²


Related Questions

The rule for the given function whose graph can be obtained from the given parent fuction by performing the given
transformations is written below.
parent function: f(x)
transformations: shift the graph 2 units to the right, stretch it horizontally by a factor of 2, and shift it upward 2 units
g(x)
1
0.5(x - 2) + 2
Please select the best answer from the choices provided
От

Answers

Answer:

l

Step-by-step explanation:

l

What is population generalizability?

Answers

Answer:

Generalizability is applied by researchers in an academic setting. It can be defined as the extension of research findings and conclusions from a study conducted on a sample population to the population at large. ... The larger the sample population, the more one can generalize the results

Answer:

Generalizability is applied by researchers in an academic setting. lt can be defined as the extension of research findings and conclusions from a study conducted on a sample population to the population at large the larger the sample population,the more one can generalize the results.

l hope it's helpful for u....

Using the scale factor, what is the value of x?
X=

Answers

15/10 = 1.5 scale factor
X= 9

Answer:

9

Step-by-step explanation:

QR- 2(9-3)=

          2(6)=12

MP- 9+5=14

QRS=MNP

12/8, 15/10, 21/14= 3/1

Scale Factor is 3:1 or 3 to 1

Please help I’ll give you brainliest

Answers

Answer: 226.9 square in.

Step-by-step explanation: Remember that the formula for the area of a circle is (pi)r^2. Since the diameter is 17, you divide that by 2 to get your radius: 8.5. Now, put it into the formula to get your answer. (226.865 is the original, 226.9 is rounded to tenths)

Tiffany types of a page in a page inof an hour. At this rate, how many pages will she type in 3 hours? Express your answer as a decimal.​

Answers

Answer:

3.0pages

Step-by-step explanation:

If Tiffany type a page in an hour, then;;

1 page = 1 hour

To calculate the number of pages typed in 3 hours, we can express as;

x pages = 3 hours

Divide both expressions

1/x = 1/3

x* 1 = 1* 3

x = 3pages

She will type 3.0pages in 3 hours

Derrick's grandparents give him $75 for his birthday. Derrick puts the money into his savings account which has $1,458. His account has an interest rate of 5%. If Derrick leaves the money in his account and does not withdraw money, how much interest will he have after 1 year?

Answers

Answer:

$1609.65

Step-by-step explanation:

1458+75=1533

I= Prt

I=1533 (.05) (1)=76.65

B= I+P

B=1533+76.65=$1609.65

The answer on top is the right answer

-3x – 4y=2 2
6x + 6y = -6
(need to show work)

Answers

Answer:

x=-.6

x=-1

Step-by-step explanation:

-3x-4(0)=2

-3x-0=2

-3x=2

x=-2/3 or -.6

6x+6(0)=-6

6x+0=-6

6x=-6

x=-1

Does this scatter plot show a positive trend a negative trend or no trend​

Answers

The dots are moving in a downward direction from left to right, so it is a negative trend.

Which of the following is a solution to the equation y=-1/4x+8 and please explain the steps.

A. (10, -8) C. (-4, 9) B. (4, 8 )D. (-8, -10)

Answers

I think it’s d .....

Chris still makes a base salary of $150 per week but her commission this week is a graduated rate of 2.5% on the first $1,000 and 3.5% for all sales over $1,000 her sales this week were again $1,500

Answers

Answer:

$33190 per year (US dollars per year) (2009)

Local currency conversion:

Au$42890 per year (Australian dollars per year) (19/03/2021)

History:

History

Employment summary:

people employed | 130.648 million people

yearly change | -4.538 million people (-3%)

workforce fraction | 100% (1 in 1)

median wage | $33190 per year (US dollars per year)

median wage yearly change | +$800 per year (US dollars per year) (+2%)

50% range | $(21940 to 52920) per year

80% range | $(17140 to 81160) per year

(2009 data)

Step-by-step explanation:

A biologist is studying a bacteria population that initially contains 10^3 bacteria. In the lab, the population doubles every week. The expression 10^3×2^w models the population of the bacteria after w weeks. How many bacteria will be present in 3 weeks? CK12

Answers

Answer: 8000

Step-by-step explanation:

From the question, we are informed that the expression 10³ × 2^w models the population of the bacteria after w weeks.

The number of bacteria that will be present in 3 weeks will then be:

= 10³ × 2^w

= 10³ × 2³

= 1000 × 8

= 8000 bacterias

(4, 6)
(-7, 2)
Find the slope

Answers

Answer:

slope = 4/11

Step-by-step explanation:

To find the slope, use delta y/ delta x

(4,6) (-7,2)

(2-6)/(-7-4)

(-4)/(-11)

slope = 4/11

Let m = slope

m = difference of y-values divided by the difference of x-values.

m = (2 - 6)/(-7 - 4)

m = -4/-11

m = 4/11

Solve each system by substitution.
y = 2x + 5
3x - y= -6

Answers

x=-1 and y=3

To solve this, because y is equal to 2x+5, you can substitute 2x+5 into the bottom equation for y.

You now have 3x - (2x + 5) =-6

This can be solved like a normal equation. Multiply each term in the parenthesis by -1.

3x - 2x - 5 = -6

Subtract 2x from 3x

x - 5 = -6

Add 5 to both sides

x=-1

Now you can solve for y by plugging -1 in for x in either equation. Im going to use the top one.

y= 2(-1)+5
y= -2+5
y=3

You can check your answer by plugging in the values for x and y into both equations and making sure both sides equal each other.

h/2 + 21 - k if h=20 and k=89

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{\dfrac{h}{2} + 21 - k\ if\ h=20\ and\ k=89}[/tex]

[tex]\textsf{If h = 20 and k = 89, the SUBSTITUTE it for where they are in the equation}[/tex]

[tex]\mathsf{\dfrac{10}{2}+21 - 89}[/tex]

[tex]\mathsf{\dfrac{20}{2}= \bf 10}[/tex]

[tex]\mathsf{\bold{10}+21 - 89}[/tex]

[tex]\mathsf{10+21=\bf 31}[/tex]

[tex]\mathsf{\bold{31}-89= \underline{ANSWER}}[/tex]

[tex]\mathsf{= \bf -58}[/tex]

[tex]\boxed{\boxed{\large\text{Answer: \huge \bf -58}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

give me the numbers that both add to negative 8 and multiply to -20​

Answers

Answer:

- 10 and 2

Step-by-step explanation:

-10 x 2 = -20

-10 + 2 = -8

Given that log_{a}(3) = 0.477 and
log_{a}(5) = 0.699, evaluate log_{a}(0.6) .​

*The answer is -0.222 but I'm not sure how to do the steps.

Answers

Given:

[tex]\log_{a}(3) = 0.477,\log_{a}(5) = 0.699[/tex]

To find:

The value of [tex]\log_{a}(0.6)[/tex].

Solution:

We need to find the value of:

[tex]\log_{a}(0.6)[/tex]

It can be written as

[tex]\log_{a}(0.6)=\log_a\left(\dfrac{6}{10}\right)[/tex]

[tex]\log_{a}(0.6)=\log_a\left(\dfrac{3}{5}\right)[/tex]

By using the property of logarithm, we get

[tex]\log_{a}(0.6)=\log_a(3)-\log_a(5)[/tex]        [tex][\because \log \dfrac{a}{b}=\log a-\log b][/tex]

[tex]\log_{a}(0.6)=\log_a(3)-\log_a(5)[/tex]

On substituting the given values, we get

[tex]\log_{a}(0.6)=0.477-0.699[/tex]

[tex]\log_{a}(0.6)=-0.222[/tex]

Therefore, the values of [tex]\log_a(0.6)[/tex] is -0.222.

HELP HELP HELP HELP

Answers

A. HOPE THIS HELPS!!!!

pls help asap
Consider the following pair of equations:


y = 3x + 3

y = x − 1


Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

Answers

Answer:

(-2, -3)

Step-by-step explanation:

We are given y = 3x + 3 and y = x - 1.

We can substitute y = x + 1 into the y value for y = 3x + 3, so

x - 1 = 3x + 3  Now, we just subtract x from both sides.

-1 = 2x + 3  We subtract 3 from both sides.

-4 = 2x

2x = -4  We divide both sides by 2

x = -2  Now we have our x value - (-2, y)

Let's substitute the x value into both of the equations given.

1st equation:

y = 3(-2) + 3

y = -6 + 3

y = -3

2nd equation:

y = (-2) - 1

y = -3

We now know that both equations give us the same y value when x = -2 is substituted, therefore our solution is:

(-2, -3)

The solution for the pair of equations is (-2,-3).

What is a system of equation?

A system of equations is a set or collection of equations that you deal with all together at once. For a system to have a unique solution, the number of equations must equal the number of unknowns.

For the given situation,

The pair of equations are

y = 3x + 3 ------- (1)

y = x − 1 -------- (2)

Substitute the equation 2 in equation 1, we get

⇒ [tex]x-1=3x+3[/tex]

⇒ [tex]3x-x=-1-3[/tex]

⇒ [tex]2x=-4[/tex]

⇒ [tex]x=-2[/tex]

Now substitute x in equation 2,

⇒ [tex]y=-2-1[/tex]

⇒ [tex]y=-3[/tex]

Hence we can conclude that the solution for the pair of equations is (-2,-3).

Learn more about system of equations here

https://brainly.com/question/25818432

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How do I solve equations with a variable to the power of something (give steps please)

Like these.
[tex]2x^2+5x=0[/tex]

Answers

Answer:

Step-by-step explanation:

Factoring will reveal the solution. So we divide the equation by the greatest common factor of the terms and use that factor as the coefficient. In this case the greatest common factor is just x.

2x^2+5x

x(2x+5) so the equation will equal zero when either of those expressions is zero because zero times anything is zero. x=0 and x=-5/2

Answer:

[tex]x = 0, -\frac{5}{2}[/tex]

Step-by-step explanation:

First move all terms to one side of the equation to set them equal to 0

That is already done in your problem

The try to factor, if possible.  In your case, factor out x

x(2x + 5) = 0   Now, use the property that says if AB = 0, then A = 0 or B = 0 or both A and B equal 0

So, x = 0    or   2x + 5 = 0

                             2x = -5

                               x = [tex]-\frac{5}{2}[/tex]

Always check your results in the original equation to see if they work

[tex]2(0^{2} + 5(0) = 0 + 0 = 0\\[/tex]

and [tex]2(-\frac{5}{2} )^{2} + 5(-\frac{5}{2} )\\ = 2(\frac{25}{4} ) - \frac{25}{2} \\ = \frac{25}{2} - \frac{25}{2} = 0[/tex]

Both results make the equation true, so [tex]x = 0, -\frac{5}{2}[/tex]

The five-number summary for the lengths of songs, in minutes, performed by a popular music group is given
below.
Minimum: 1.8
Q: 3.3
Median: 3.8
Q3: 4.5
Maximum: 9.2
What is the IQR for the distribution of song lengths?
0.5
0.7
1.2.
1.5

Answers

Answer:

the answer is c 1.2

Step-by-step explanation:

to calculate the iqr you have to do the following:

q3 - q1 = answer

4.5 - 3.3 = 1.2

The IQR(interquartile range) for the distribution of the song length is 1.2.

What is interquartile range(IQR)?

Interquartile range gives information on the spread of the middle half of your distribution.

Mathematically, the interquartile range can be represented as follows:

IQR = Q₃ - Q₁

where

Q₃ = 4.5

Q₁ = 3.3

Therefore,

IQR = 4.5  - 3.3

IQR = 1.2

Therefore, the interquartile range is 1.2.

learn more on IQR here: https://brainly.com/question/20719471

#SPJ2

Problem
Kong took 15\%15%15, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 858585 seconds.
How many seconds did Nolan take?

Answers

kong: 15% 15x100=1,500

Nolan:85 seconds 85x2=170

then when you multiple kong by 15 and 100 it gives you 1,500 however nolan did of the seconds 85x 2 gives you 170 . in conclusion Nolan did 15x2=30 . which means Nolan did 30 seconds.

HELPA ASAP MY TEACHER IS YELLING AT ME !!! ILL MARK U AS BRAINLIEST

Answers

Answer:

True

Step-by-step explanation:

false

Step-by-step explanation:

What is the distance between the points (-30, -10) and (-30, 19) in the xy-plane?

Answers

Answer:

29 units

Step-by-step explanation:

Answer:

29 is the distance between the points (-30, -10) and (-30, 19) in the xy-plane.

Step-by-step explanation:

I've answered the question written, not the one in the picture.

You can either use the distance formula, [tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex], or do Y2-Y1 (since the x-value is the same).

19-(-10)

19+10

29

A ____ -plot represents the range of data.

i have to find the word!!! HELP

Answers

Answer:

line plot because it is the most likely option

Answer:

box-plot

or

box and whisker plot

What’s the equation???

Answers

Your equation would be y=9.950x+0.405. You can use this app called desmos and plot in your points on your graph. Hope this helped

Use the distributive property to write an equivalent expression of the following

2 ( b + c )

5 (7h + 3m)

4 (x+y)

c ( 3a + b )​

Answers

Answer:

2b+2c

35h+15m

4x+4y

3ac+bc

Answer:

Solution given:

2 ( b + c )=2b+2c

5 (7h + 3m)=35h+15m

4 (x+y)=4x+4y

c ( 3a + b )=3ac+bc

NEED HELP ASAP

A medication has a half-life of 4 hours after it enters the bloodstream. A nurse administers a dose of 500 milligrams to a patient at noon.





Only answer if you know pls!!

Find the amount of medication, in milligrams (mg), remaining in the patient's body at: (Round to the nearest 10th)

a. 3 p.m. on the same day:

b. 8 p.m. on the same day:


2. The expression 500 x (1/2)^5/4 represents the amount of medicine in the body sometime after it is administered. What is that time? (Make sure to signify am or pm)

Answers

mg remaining = (initial amount in mg) (1/2^(t/h)) where h = half-life

1.

a.
mg remaining = (500) (1/2^(3/4)
= 297.3 mg
b.
mg remaining = (500)(1/2^(8/4))
= 125 mg
2.
5 represents the time elapsed from when the medication entered the bloodstream. Assuming the medication was given at noon, add 5 hours to have 5:00 pm.

Good luck! I need sleep. XD

The triangle below can be best classified as?

Answers

Answer:

obtuse scalene

Step-by-step explanation:

Three different sizes.

find the value of x please help

Answers

using angle sum property

we get

110+35+(x+12)=180

(x+12)=180-145

(x+12)= 35

x= 35-12

x= 23

Answer:

Angles in a triangle are sum up to 180 degrees.

35 + 110 + (x+12)=180

145+x+12=180

157+x=180

x=180-157

x=23 degrees

Find the products : (2abc) × (– 5ab) ×(– 6c)​

Answers

Answer:

products : (2abc) × (– 5ab) ×(– 6c)

2abc×-5ab×-6c

-×-×2×5×6×a×a×b×b×c×c

+60×a²×b²×c²

60a²b²c² is your answer. here -×-=+

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