Which set of angles is complementary?

Which Set Of Angles Is Complementary?

Answers

Answer 1

Answer:

angles ECF and BCF

Step-by-step explanation:


Related Questions

Awad claims that when m is a negative integer and n is a positive integer, n - m is always negative. Is Awad’s claim true or false? Explain your reasoning. If it is true, give an example to support his claim. If it is false, give a counterexample. Explain your reasoning..

Answers

Answer:

False

Step-by-step explanation:

False, because whenever you subtract a negative number, you always end up adding because two negatives make a positive. Lets say n is 4 and m is -3, 4-(-3) is going to turn into 4+3=7.

The Awad'claims that "when m is a negative integer and n is a positive integer, n - m is always negative". which is false.

What is the number system?

A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9. Based on the basic value of its digits, different types of number systems exist.

Awad claims that when m is a negative integer and n is a positive integer, n - m is always negative.

The above claim is false because subtracting a negative integer always results in an addition because two negatives equal a positive.

For example, n is 6 and m is -2; 6 -(-2) will equal 6 + 2 = 8.

Hence, the Awad'claims that "when m is a negative integer and n is a positive integer, n - m is always negative". which is false.

Learn more about the number system here:

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SECTION C
11. UNE PISCINE
L'opération consistant à vider une piscine débute à 8 h du matin. À 10 h du matin, la
piscine contient 80 000 litres d'eau et à midi elle contient 64 000 litres.
Si la piscine se vide à un débit constant, à quelle heure la piscine sera-t-elle vide?

Answers

Sus hahah shshsh dish

The sum of the age of mother and daughter is 66 years.Mothers age is 5 times of daughters age.What is the age of daughter??

Answers

Answer:

I think it might be 13 or 14 I'm not completely sure though.

Step-by-step explanation:

If 9/10 is multiplied by 8/9 , will the product be greater than either of the two factors?

Answers

Answer:

No, both of the numbers are less than one whole and when you multiply them (I got 4/5) 4/5 is less than both of the factors.

Answer:

No

Step-by-step explanation:

It will not be because when a number is numtiplied by one, it stays the same. However, both of these are numbers less than 1, so the product will be smaller

Ben enters the water during a scuba dive. After 41 seconds of diving, his depth changes by - 29 feet. He wants to know his average change in depth each second. Write an expression for the average change in depth each second.

Answers

Answer:

-0.7073ft/sec

Step-by-step explanation:

Given the following

Distance covered by Ben = -29feet

Time taken = 41secs

Required

average change in depth each second(speed)

average change in depth each second = Distance/Time

average change in depth each second = -29/41

average change in depth each second = -0.7073ft/sec

Answer:

The answer is -29 divided by 41

Write an equation for the line in slope-intercept
form.

Answers

Answer:

y = 2x + 3

Step-by-step explanation:

Oliver has created a plot of his backyard on the given coordinate plane, so that each unit length is one yard. He wants to design a right triangular plant bed for his backyard that has an area of eight square yards. After placing one vertex of the base of the plant bed at (3, 8) and one vertex at (7, 8) on his coordinate plane, he has to determine where to place the last vertex. Locate the possible locations of the last vertex on the coordinate plane.

Answers

Answer:

The possible locations are;

(3, 4), (3, 12), (7, 4), and (7, 12)

Please find attached the plot of the points created with Microsoft Excel      

Step-by-step explanation:

The given parameters of the plot of Oliver's backyard are;

The area of the right triangular plant bed Oliver wants to design, A = 8 yd²

The length of a/each unit of the plot = 1 yard

The location of one of the vertex of the right triangular area = (3, 8)

The location of the other vertex of the right triangular area = (7, 8)

We note that the area of a triangle, A = 1/2 × Base length, B × Height, h

Let the distance between the two plotted point represent the base length, 'B', therefore;

B = 7 - 3 = 4 (We subtract only the x-values (7 and 3) given that the y-values (8 and 8) are the same;

Therefore, the base length, B = 4 yards

A = 1/2 × B × h

∴ A = 8 yd.² = 1/2 × 4 yd. × h

h = 8 yd.²/ 2 yd. = 4 yd.

The height of the right triangle, h = 4 yd.

Therefore the possible locations of the last vertex the right triangle on the coordinate plane, given that the first two points are parallel with the x-axis, are points 4 units above or the y-axis value of the plotted points with the x-value of the last vertex being either 3, or 7 as follows;

(3, 8 ± 4) or (7, 8 ± 4) which give points, (3, 4), (3, 12), (7, 4), and (7, 12).

Answer:

3,4 7,4

Step-by-step explanation:

What is an equation of the line that passes through the points (-1,3) and
(-1, 6)?
Please no links:)

Answers

Answer:

x = -1

Step-by-step explanation:

Slope = (6-3)/(-1- (-1)

= 3 / 0

- so the line is vertical.

- and as it passes through x axis at x = -1,  the answer is x = -1.

who ever answer this get a brainliest and a thank you i need it answered asap

Answers

Answer:

a = 9

Step-by-step explanation:

For solve the problem we can use the Pythagorean theorem in this way

a^2 + (3√3)^2 = (6√3)^2

If we solve the equation we have

a^2 + 27 = 108

a^2 = 81

a = +/-9

we take only the the positive value because a length can’t be negative

a = 9

What would this answer be if i solved for x?

SOLVE FOR X

x + 67

x + 127

Answers

Answer:

X+67=0

X=-67

X+127=0

X=-127

Step-by-step explanation:

pls help with this !!

Answers

Answer:

25.12 so the nearest 10 is 25.10

PLZ HELPLPLPLPLP!!!!

Answers

Answer:

c) 50

Step-by-step explanation:

√36 + 2 * 5^2  - 6

√36 = 6, 5^2 = 25

6 + 2 * 25 - 6 = 25 2 * 25 = 50, 6 + 50 - 6, 50

Enoch is two times as old as MARTIN.three years ago,the difference between their ages was fifteen years.find their present ages

Answers

9514 1404 393

Answer:

Enoch is 30Martin is 15

Step-by-step explanation:

The difference in ages remains the same over time. Enoch, at twice Martin's age, is still 15 years older. That means Martin is 15 and Enoch is 30.

What percent of 80 is 32? Enter your answer in the box.

Answers

Answer: 40

Step-by-step explanation:

80 = 100%

40 = 50%

8 = 5%

5% x 4 = 20

8 x 4 = 32

32 = 20%

please help me with this math problem, the question is on the picture that i attached, ill mark brainliest if the answer is correct. NO links!

Answers

Answer:

5/12

Step-by-step explanation:

Think SohCahToa

Soh- Sin: opposite/hypotenuse

Cah- CoSin: adjacent/hypotenuse

Toa- Tan: opposite/adjacent

Opposite: The length on the opposite side of the angle.

Adjacent: The length next to the angle.

Hypotenuse: The longest side of the angle.

1. Find the slant height of a square pyramid with a surface area of 57 square feet and a base perimeter of 12 feet

Answers

Answer:

Slant height = 8 feet.

Step-by-step explanation:

If the perimeter of the square base = 12 then each side of the base = 12/4

= 3  feet and its area = 3*3 = 9 ft^2

The area of one of the triangular sides = 1/2 * 3 * h where h is slant height.

So total surface area = 57 = 9 + 4 * 1.5h

9 + 6h = 57

6h = 48

h = 8 feet.

Lines Line D E and Line A B are parallel. Lines D E and A B are parallel. Angles B and D are alternate interior angles. Which angles represent alternate interior angles

Answers

Answer:

Angles B and D

Step-by-step explanation:

Since Lines D E and Line A B are parallel hence

The angles that will represent alternate interior angles will be

Angles B and D

This is because when two parallel lines are cut  through by a transversal, the corresponding angles are congruent .

Answer:

B

Step-by-step explanation:

How many right angles are there in an angle that turns through 360º?

Answers

4 right angles

90 + 90 + 90 + 90 = 360

However, it that figure is a circle-- it may include 0 right angles since circles have no angles.

There is 0 right angles

Determine the value of a so that the following system has no solution.

ax+5y=10
6x+2y=7
HURRY PLSSSS

Answers

Answer:

z

Step-by-step explanation:

Can someone help me?

Answers

Maybe 1C 2C 3D *not sure

Help plzz need the answer and that explanation plz don't send a file I need help with question 21!! thx so much

Answers

Answer:

No, they cannot be becuase the points are too different- no same numerical

values.

Step-by-step explanation:

Which equation best represents the data in the function table

Answers

Answer:

y = x² + 1

Step-by-step explanation:

y = x² + 1

When x = -3

y = -3² + 1

y = 9 + 1 = 10

When x = -1

y = x² + 1

y = -1² + 1

y = 1 + 1 = 2

When x = 0

y = x² + 1

y = 0² + 1 = 1

When x = 2

y = x² + 1

y = 2² + 1

y = 4 + 1 = 5

All of the x and y values have been correct

Answer:

A

Step-by-step explanation:

the others will not produce the correct value for the image ((y)), if you replace the incognito x in the equation by the -3, you can see that you only obtain the result 10 for y in the first equation. you don't even need to test all the cases.

-3.-3 +1 = 10

-3.-3 + 2 = 11

-3.-3 -1 = 8

-3.-3 -3 = 6

The cost of a reclining chair is $389, and the selling price is $599. Find the amount of markup

Answers

Answer:

53.9 just do the math

Answer:

$210

Step-by-step explanation:

$389+$10=$399

$399+$200=$599

There is your answer

help pleaseeee i dont get this also show work

Answers

Answer:

AC = 2

BC = [tex]2\sqrt{2}[/tex]

CD = 4

CF = 4

BD = [tex]2\sqrt{2}[/tex]

DE = 8

EF = [tex]4\sqrt{2}[/tex]

DF = [tex]4\sqrt{2}[/tex]

Step-by-step explanation:

Since all of these are isosceles triangles, it means both legs of every triangle are congruent to each other. So,

Given: AB = 2

Find:

AC = AB = 2

BC = [tex]2\sqrt{2}[/tex]

CD = 4

CF = CD = 4

BD = BC = [tex]2\sqrt{2}[/tex]

DE = 8

EF = [tex]4\sqrt{2}[/tex]

DF = EF = [tex]4\sqrt{2}[/tex]

Solve the system by substitution.
x = 9y
x-5y=20

Answers

Step-by-step explanation:

hope this helps you! have a great day

The solutions of the system of equations are x = 45 and y = 5.

What is the system of equations?

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

Given:

The system of equations,

x = 9y  .... (1)

x-5y=20 ......(2)

Substituting the value of x from the equation 1 to equation 2,

we get,

9y - 5y = 20

4y = 20

y = 5

Then, x = 5(9) = 45

Therefore, the solutions of the equations are x = 45 and y = 5

To learn more about the system of equation;

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If side 1 is 13, side 2 is 12, and side 3 is 18, can a triangle be made?

Answers

Answer:

no

Step-by-step explanation:

Fill in the blank with a number to make the expression a perfect square x^2+ 4x + ?​

Answers

Explаnаtion is in а file

xlnk․cf/tcMG

Answer:

x^2+4x+4 would make it a perfect square.

Step-by-step explanation:

help I literally got a 4/10 in my math test and my mom is like REALLLLY mad that she took my phone so I’m using my sisters ipad and she gave me advice on this app so i don’t even know if this could help but this is the page I need to complete/it’s for term 2 (week2) basically on my test well it’s apart of it so pls help- ~btw don’t look at the top cause I already completed it, I just need the 2 and 3 helppppp ima die ANDDD I used all the points I think that’s what it’s called~

Answers

Answer:

3/8 < 2/4

2/3 > 7/12

i could be wrong sorry

It should look like this:

I want its solution and the unit is about algebraic fraction.

Answers

Answer:

3x²/(3x - 9y)

This should be the simplest form.

Step-by-step explanation:

Combine the fractions:

(5x² - 2x²)/((6x - 6y) - (3y - 3x))

Combine like terms:

3x²/(6x - 3x - 6y - 3y)

Solve.

3x²/(3x - 9y)

Answer:

9x^2      

======

6(x - y)

Step-by-step explanation:

Begin by switching the - to a plus. Switch the x and y in the second denominator.

5x^2              2x^2

=====      +    ======

6x - 6y          3x - 3y

Pull out the common factors in both denominators. Use the distributive property.

5x^2              2x^2

=====      +    ======

6(x - y)          3(x - y)

Multiply both the numerator and denominator by 2 on the left had fraction.

5x^2              2*2x^2

=====      +    ======

6(x - y)          2*3(x - y)

5x^2                4x^2

=====      +    ======

6(x - y)          6(x - y)

Put both numerators over a common denominator. Notice that the + sign shifts up.  It shifts up because both fractions have been changed to a common denominator.

5x^2        +        4x^2

===================

          6(x - y)

Combine the two numerators since they are of the same power.

9x^2      

======

6(x - y)

Find the surface area of each pyramid round to the nearest tenth if necessary

Answers

Answer:

145.9

Step-by-step explanation:

Answer: 145.9 is your answer!

Step-by-step explanation:

give the person above me Brainliest~! ✪ ω ✪

Have a great rest of your day~ ヾ(•ω•`)/

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