Mathematics High School

hi can someone help me....can't get the answer.....you need to find a+b+c+d ​

Hi Can Someone Help Me....can't Get The Answer.....you Need To Find A+b+c+d

Answers

Answer 1

Answer:

B) 306°

Step-by-step explanation:

1. Pentagons have a sum of interior angles of 540°

2. Triangles have a sum of interior angles of 180°

3. Knowing that triangle EFA is isosceles, we know that

   <FEA = *<FAE, so they are equal to:  (180° - <F) /2   =   (180° - 36°) / 2

   = 144° / 2  

   = 72°

4. m<A + m<B + m<C + m<D + m<E = 540°

   It is also given that **m<D = 90°,

   so therefore m<A + m<B + m<C + m<E = 450°

5. Now to find a+b+c+d   (m<a + m<b + m< c+ m<d),

       m<a = m<E - 72°    and    m<d = m<A - 72°

   This means that

   m<a + m<b + m< c+ m<d = (m<A - 72°) + m<B + m<C + (m<E - 72°) = 450°

6. Finally,

m<a + m<b + m< c+ m<d  =  450° - 72° - 72°  =  306°

       

   

EXTRAS

* < is an angle symbol

** m<D means measure of angle D

Related Questions

In a class of 20 students, 5 have a brother and 11 have a sister. There are 3 students who have a brother and a sister. What is the probability that a student who does not have a brother has a sister?

Answers

The probability that a student who does not have a brother has a sister is 53.33%.

Probability

Given that in a class of 20 students, 5 have a brother and 11 have a sister, and there are 3 students who have a brother and a sister, to determine what is the probability that a student who does not have a brother has a sister the following calculation must be performed:

20 - 5 = 10011 - 3 = X15 = 1008 = X8 x 100 / 15 = X800 / 15 = X53.33 = X

Therefore, the probability that a student who does not have a brother has a sister is 53.33%.

Learn more about probability in https://brainly.com/question/13553988

HELP PLSASE: Find the solution of the system of equations.
2
x
+
4
y
=
2x+4y=
 
 
−
16
−16
−
2
x
+
2
y
=
−2x+2y=
 
 
−
2
−2

Answers

Answer:

Step-by-step explanation:

x

=

−

24

y

=

10

Explanation:

x

+

4

y

=

16

2

x

−

4

y

=

8

Subtract the bottom equation from the top one so the

+

4

y

and

−

4

y

cancel each other out.

−

x

=

24

x

=

−

24

x

+

4

y

=

16

−

24

+

4

y

=

16

4

y

=

40

y

=

10

I need help please

Which value is the closest to
0.9 • 997

a. 1,000
b. 81
c. 10,000
d. 10

Answer with supporting work:

Answers

It is A. 1000

Explanation: 0.9 x 997 equals to 897.3
897.3 rounds to 900 which is close to 1000 so it is that

PLZ HELP ASAP I GIVE BRAINLIEST AND POINTS PLZ DONT POST LINKS
LOOK AT THE PICTURE

Answers

Answer:

look at the picture..................

[tex]\\ \rm\leadsto (aa^2a^3)/(a\div a^2)^{-1}[/tex]

[tex]\\ \rm\leadsto \dfrac{a^{1+2+3}}{(a^{-1})^{-1}}[/tex]

[tex]\\ \rm\leadsto \dfrac{a^6}{a}[/tex]

[tex]\\ \rm\leadsto a^5[/tex]

what is the degree measure of the missing angle? 84 34 114 24​

Answers

Answer:

24°

Step-by-step explanation:

We are given that m∠EFG is a right angle, and that m∠EFH = 66°

m∠EFH + m∠HFG = m∠EFG

Substitute values and solve.

66 + m∠HFG = 90

m∠HFG = 24°

pls help it’s timed c:

Answers

Answer:

A

Step-by-step explanation:

z1 = 4 - i

z2 = -3 - 2i

z1 - z2 = 4 - i - (-3 - 2i) = 4 + 3 - i + 2i = 7 + i

Answer: A

The annual snowfall in city A is 45.8 inches. This is 14.2 inches more than 4 times the snowfall in city B. Find the annual snowfall for city B.

Answers

Answer: 7.9inches

Step-by-step explanation:

45.8-14.2=31.6

31.6/4=7.9

Which of the following forms a Pythagorean triplet?
a)3, 4, 6 b) 5, 12, 13 c) 6, 7, 14 d) 8, 6, 16
(hey kid can you answer fast)
NO USELESS THINGS OR WRONG ANSWERS FOR I WILL REPORT YOU.

Answers

B. 5, 12, 13

The 16 primitive pythagorean triples under 16 are
(3, 4,5), (5, 12, 13), (8, 15, 17), (7, 24, 25), (20, 21, 29), (12, 35, 37), (9, 40, 41), (28, 45, 53), (11, 60, 61), (33, 56, 65), (16, 63, 65), (48, 55, 73), (36, 77, 85), (13, 84, 85), (39, 80, 89), and (65, 72, 97)

Answer:

b)

Step-by-step explanation:

i hope this help you

PLEASE HELP FAST!!!!!
1. Which number has a real component of 16 and an imaginary component of 10?
A: 16 + 10i
B: 10+ 16i
C: 16 - 10i
D: 10 - 16i

Answers

Answer:

A: 16 + 10i

Step-by-step explanation:

The numbers are in the form of:

a + bi, where a - real component, b - imaginary component

When a = 16, b = 10 the number is:

16 + 10i

Correct choice is A

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2

Answers

Answer:

y+5= -2/3 (x-4)

I used Desmos

m-(-584)=866 simplified

Answers

Answer:

282 thats what i got

Step-by-step explanation:

Answer:

m = 282

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

m + 584 = 866

Step 2: Subtract 584 from both sides.

m + 584 (−584) = 866 (−584)

m = 282

the average attendance at a club fell by 7% in 2015. if 2030 fewer people went in 2015, how many went in 2014?​

Answers

Answer:

300

Step-by-step explanation:

All you had to be is take 2030 and divide by 7 percents

A train travels 160 miles at a constant speed for 80 minutes. What is the speed of the train in mi/min

Answers

Answer:

2mi/min

Step-by-step explanation:

Speed=Distance/Time

=160mi/80min

=2mi/min

if marsha deposited 9,500$ into a savings acc 4 years ago The simple interest rate is 2% how much money did masha earn

Answers

Answer:

Kasha earned $10,260.00

Step-by-step explanation:

The total amount accrued, principal plus interest, from simple interest on a principal of $9,500.00 at a rate of 2% per year for 4 years is $10,260.00.

help me with this please thank you mate

Answers

[tex] \: \: \: \: \: [/tex]

[tex](x,y) = ( - 8,0)[/tex]

refer to the attachmenthope it helps

[tex] \: \: \: \: [/tex]

5) How would you break down 40% to find 40% of a number? Check all
that apply.
2 points
4(10%)
2(25%)
10% + 10% + 10% + 10%
25% + 10%
50% + 10% + 10%

Answers

Answer:

(A) and (C)

Step-by-step explanation:

4(10%) and 10%+10%+10%+10%+

Answer:

4(%10) = 40%

and

10% + 10% + 10% + 10% = 40%

which one is it please do this quick!

Answers

Answer:

B

Step-by-step explanation:

The answer is B because Figure JKML is a result of PQRS by a scale factor of 3

You can verify this because the distance from J to K is 6 and the distance from P to Q is 2, from 2 to get to 6 you need to multiply 2 by 3 meaning JKML would be the dilation of figure PQRS by a scale factor of 3


I need help asap!!!!
What is the slope of the line on the graph below?
2 IV
-2 -1
1
2
3
4
5
6.
7
8
х
-2
4
45
-6
-7
48
1

Answers

Answer:

Slope is 1/3

Step-by-step explanation:

This is because the line is positive (moving upwards), and it moves up 1 unit and to the right 3 units. That means if you write it in the form of rise/run, where rise is the up or down movement and run is the left or right movement, 1 will be on top and 3 will be at the bottom.

Bonus: The line is y = 1/3x -5 (where 1/3 is slope and -5 is the y-intercept).

Hope this helps :)

f(x) = x2 – 2x + 3; f(x) = -x + 5


(2, [?]); ([ ], [ ])

Answers

Answer:

your answer is, -x+5

Step-by-step explanation:

i need to know the answer to number one

Answers

Answer:

If the slope of the line is 3, it either decreases or increases by 3 everytime. (3x) If the y-intercept is 0, then when the line intercepts with the graph, it will intercept with (0, 0)

Step-by-step explanation:

Basically, the slope means how much the line increases or decreases. The y-intercept means where the line will intercept or start on the y-axis. If the y-intercept was 5, it would be (0, 5)

The answer is 69 hope this helps :)

I need help plzzzzzzzz

Answers

Answer:

51

Step-by-step explanation:

Given:

c=3

d = 7

thus just substitute it in.

15+(3)^2 * (7) - (3)^3

15 + 9*7-27

15+63-27

=51

Can somebody answer this?

Answers

Answer:

its A

Step-by-step explanation:

what's the power. ......​

Answers

Answer:

Rate of DOING WORK is called power

-12p^18 i think… im not sure though but you just add the powers and p to the power of nothing is 1

A regular polygon has 45 sides.

Find the size of each of its exterior angles.

100 POINTS

Answers

Answer:

8

Step-by-step explanation:

360/45 = 8

We know

Sum of exterior angles of any polygon is 360°

Let every angle be x

[tex]\\ \sf\longmapsto 45x=360[/tex]

[tex]\\ \sf\longmapsto x=360/45[/tex]

[tex]\\ \sf\longmapsto x=8°[/tex]

Answer asap pleaseeeee

Answers

Answer:

I am not certified because I also struggle with these but-

it might be

A. t = -5h-4

Step-by-step explanation:

For the answer A in the paragraph it states that the temperature was 4 degrees BELOW 0 meaning we shall put as -4° and each HOUR it keep going down 5 degrees so I would suppose it would be answer A.

4) The original value of a painting is $9,000 and the value increases by 7% each year. In what year,
will the painting be worth $50,000? Show all work.

Answers

Answer:

The year will be 5 years from the starting year

Step-by-step explanation:

because if you add 7% by 9,000 until you get 50,000 just count how many times you added

Need help
She could also make yogurt at home for $1
$
1
a quart after spending $24
$
24
on a yogurt maker.

The graph shows the cost of yogurt bought at the grocery store and made at home.

Answers

The x-axis should be labeled quartz of yogurt.

The y-axis should be labeled total cost.

The slope of each line represents the cost of yogurt ($/qt).

The y-intercept of each line represents the initial equipment cost.

What is y-intercept?

In Mathematics, the y-intercept is also known as an initial value and the y-intercept of any graph such as a linear function, generally occur at the point where the value of "x" is equal to zero (x = 0).

Based on the graph above, the initial equipment cost represents the y-intercept of each line.

What is a slope?

In Mathematics, a slope is also referred to as gradient or rate of change and it is typically used to describe both the ratio, direction and steepness of the function of a straight line.

Therefore, the slope of each line represents the rate of change of the total cost with respect to the quartz of yogurt ($/qt).

Read more on slope here: brainly.com/question/3493733

#SPJ1

Khloe invests money in an account paying a simple interest of 7% per year. If she
invests $140 and no money will be added or removed from the investment, how much
will she have in one year, in dollars and cents?

Answers

Answer: $149.8

Step-by-step explanation:

Find the 1% of the 140 which is 1.4 because 140/100 = 1.4

Times by 7 to get 7%. 1.4 x 7 = 9.8

Add them together. 140+9.8 = 149.8

Find the value of x in the triangle shown below.
102
48

Answers

Answer:

The sum of the angles of a triangle is always 180, so the answer is

180-102-48=30

Step-by-step explanation:

How many quarters are there in 5 1/2

Answers

Answer:

Please mark as brainliest if you understood

Step-by-step explanation:

5 1/2

=11/2

=22/4

Therefore there are 22 quarters.

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