Mathematics High School

Please answer!
Find the lengths of the segments with variable expressions.

Please Answer!Find The Lengths Of The Segments With Variable Expressions.

Answers

Answer 1

Answer:

EF = 8

Step-by-step explanation:

The midsegment EF is half the sum of the parallel bases , that is

x = [tex]\frac{x-5+2x-3}{2}[/tex] ( multiply both sides by 2 to clear the fraction )

2x = 3x - 8 ( subtract 2x from both sides )

0 = x - 8 ( add 8 to both sides )

8 = x

Thus

EF = x = 8

AD = x - 5 = 8 - 5 = 3

BC = 2x - 3 = 2(8) - 3 = 16 - 3 = 13

Related Questions

3x -4y = 13 y = -3x-7

Answers

Step-by-step explanation:

3x-4y=13

y=-3x-7

3x-4(-3x-7)=13

3x+12x+28=13

15x=-15

x= -1

y= -3x-7 = 3-7= -4

( -1, -4)

If on a scale drawing 5 inches represents 80 feet, then inch would represent how many feet?
16 feet
4 feet
8 feet
12 feei

Answers

Answer:

16 feet

Step-by-step explanation:

5 inches = 80 1 inch = 80/5= 16feet

Answer:

x=12 ft

Step-by-step explanation:

5/80=.75/x

5x=60

x=12 ft

The figure below shows a right triangle:

What is r ÷ p equal to? (6 points)

Group of answer choices

A. sin y°

B. sin x°

C. tan y°

D. tan x°

Answers

Answer:

tan y°

Step-by-step explanation:

by using the Sine Rule (See attached), we can form the equation:

[tex]\frac{r}{sin (y)} = \frac{p}{sin (x)}[/tex]

rearranging this, we get:

[tex]\frac{r}{p} =\frac{sin(y)}{sin(x)}[/tex]   ---------------------eq 1

Recall that all internal angles of a triangle must sum to 180°. we observe that we have a right triangle where one of the angles is 90°. It then follows that the sum of the other two angles must sum to 90°

i.e x + y = 90°

with a little rearranging, we get

x = (90° - y)

Substituting this into eq 1 above, we get:

[tex]\frac{r}{p} =\frac{sin(y)}{sin(90- y)}[/tex]  ---------eq 2

recall that from the trigonometric co-function identities,

sin (90°- y) = cos y

substituting this into eq 2 gives :

[tex]\frac{r}{p} =\frac{sin(y)}{cos(y)} = tan(y)[/tex]   (answer)

Factor to write an equivalent expression: 36a-16

Answers

Answer:

4(9a−4)

Step-by-step explanation:

pls help i really need it!!!!!

i dont understand how to do it

Answers

Just remember that 1 mile is equal to 5,280 feet.

If we have 5 miles, we need to multiply it my 5,280 which would equal 26,400.


Then we have the other 529 feet that they gave. Just add 26,400ft and 529ft and they will equal 26,929 ft.


Hope it helped! Remember, five tomatoes! (five two eight oh(0)).

A recipe for cookies calls for 2/3 of a cup of sugar. Elena used 5 1/3 cups of sugar to make multiple batches of cookies. How many batches did she make?

Answers

Answer:

8 batches

Step-by-step explanation:

A recipe for cookies calls for 2/3 of a cup of sugar. Elena used 5 1/3 cups of sugar to make multiple batches of cookies. How many batches did she make?

From the above question, 1 recipe = 1 batch of cookies

Hence:

2/3 cup of sugar = 1 batch of cookies

5 1/3 cups of sugar = x batches of cookies

Cross Multiply

2/3 cup × x batches = 5 1/3 cup × 1 batch

x batches = 5 1/3 cup × 1 batch/2/3 cup

x batches = 16/3 ÷ 2/3

x batches = 16/3 × 3/2

= 8 batches

Therefore she made 8 batches

The measure of angle ABD is 105º. The measure of angle ABC is 75º. What is the measure of angle CBD? A 75° B >C ? D 1>) 170° 1) 30° 1) 25° 1) 180°​

Answers

30°

105-75=30°
djdhshshe

Brainlist and 40 points

What is the most toxic community?

1 undertale

2 Reddit

3 dead by daylight

4 the entirety of 4chan

Answers

Are we allowed to guess if so my answer is 2 Reddit because i have no idea what this question is.

And  I don't know if this is just for points or if you actually need it for your work so sorry for guessing if you really do need it for work...

Answer:

Reddit/the entirety of 4chan

Step-by-step explanation:

I'll give 100 points to who gives the best answer.

The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right angles.


What is the area, in square feet, of the shaded region?

What is the area, in square feet, of the non-shaded region?

Answers

Total shaded area is 41 square feet.

Split the shaded area into 3 shapes, calculate the area of each shape then add them together.

See attached picture.

Area of non shaded region:

8x 16 = 128 square feet - 41 = 87 square feet.

Please help!



Select ALL of the expressions that are equivalent to
3.5 – (4.7).
3.5+ (-4.7)
4.7 – (3.5)
-4.7 + 3.5
3.5 +4.7
3.5 - (-4.7)


Answers

Answer:

Step-by-step 16

16 x 81

An rectangle has 18 cm As the base and 17 cm as the height what is the area

Answers

Answer:

306

Step-by-step explanation:

I think you just multiply 18 x 17=306


8 ft.
Area
8 ft.
15 ft.

Answers

Answer:

?

Step-by-step explanation:

The sales-tax rate was 7%. The two CDs cost $15.49 each. What was
the total cost of the two CDs including tax?

Answers

Answer:

$16.57

Step-by-step explanation:

15.49 increase 7% =

15.49 × (1 + 7%) = 15.49 × (1 + 0.07) = 16.5743

A new bed costs $1,200. If the tax rate is 8.25%, how much will the bed cost including tax?

Answers

Answer:

1299

Step-by-step explanation:

To find the equivalent of the persentege in money u do

(8.25)/100 *1200

that is 99

than u simply do 1200+99=1299

Please help i am timed

Answers

7a^3(6a^2 + a)^2 - 4a^6


All we have to do here is basically add and subtract exponents!

(6a^2 + a)^2 = 36a^4 + a^2


7a^3(36a^4 + a^2) - 4a^6


252a^7 + 7a^5 - 4a^6


Answer is C.

What angle is 5° less than three times the measure of another angle. Together, the angle measures have a sum of 160°. What is the measure of each angle?

Answers

Answer: bro this is easy

Step-by-step explanation:

. Find the slope of the line containing the points (3,-7) and (4,-9).

Answers

Answer:

m=-2

Step-by-step explanation:

the formula for slope (m) is (y2-y1)/(x2-x1)

the given points are (3,-7) and (4,-9)

label the points;

x1=3

y1=-7

x2=4

y2=-9

substitute into the equation:

m=(-9--7)/(4-3)

m=(-9+7)/(1)

m=-2/1

the slope is -2

hope this helps!

Select the correct answer.
What is 7^5 equal to?
A.
7 x 5
B. 5 x 5 x 5 x 5 x 5 x 5 x 5
C.
7 x 7 x 7 x 7x7
D. 5^7

Answers

Answer:

c

Step-by-step explanation:

7^5 means that there are 5 7s eg 2^4 would be 2×2×2×2

7^5 is c because I the “^” basically men’s to multiply the same number by the number is after ^ , so if it is 6^3 then it would be 6x6x6 and in this problem it would be 7x7x7x7x7 , my bad if it does not make May sense but the answer is C

need help please on this question

Answers

Answer:

a c

Step-by-step explanation:

Here is the answer for yiu

Please answer this question

Answers

Answer:

b

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Which expression is equivalent to 24 x 2 - 22 x + 5?

Answers

Answer:

26x+5

Step-by-step explanation:

What is the value of x in the equation 6(x + 11) = -300?
I
Help plz

Answers

Answer: 6 x-289

Step-by-step explanation:

Look at this and tell me what order they going recording to the book thanks :)

Answers

Answer:

2.Movies

3.Meet Cherry

4.Fall Asleep

5.Darry hits pony

6.Pony and Johny run to the park

7.Underwater

8.Money and Directions

9.Windrixville

10.Save kids

11.Interview newspaper

12.Randy talks to pony

13.Hospital

14.Switchblade

15.

Step-by-step explanation:

Select the outlier in the data set.
21
52
32
33
28
30
36
40
86
38
34
19

Answers

Answer:

86

Step-by-step explanation:

21   36

52   40

32   86

33   38

28   34

30   19

2.

Which graph is the most appropriate to describe a quantity decreasing at a steady rate?


graph d

graph a

graph b

graph c

Answers

Answer:

graph c

Step-by-step explanation:

it's straight so therefore it's steady

graph c is the most appropriate to describe a quantity decreasing at a steady rate.

Find the best graph to explain the amount of steadily decreasing?

If the amount continues to decrease, it means that the amount is decreasing at a constant rate.

If the function decreases by a certain value, the graph of the function becomes a straight line with a decreasing slope.

Graph c only represents a slanted straight line.

The slope straight line has a negative slope. The downhill curve also has a negative slope. Of course, the slopes vary from point to point on the curve, but all slopes along these two curves are negative.

Learn more about constant rate. here: https://brainly.com/question/14124136

#SPJ2

Subtract 4x2 – 7x +6 from 2x2 – 5x – 4. Express as a trinomial

Answers

Answer: -2x²+2x-10

Step-by-step explanation:

Rephrase the expression

Subtract 4x²-7x+6 from 2x²-5x-4

(2x²-5x-4)-(4x²-7x+6)

Expand parenthesis

2x²-5x-4-4x²+7x-6

Put like terms together

(2x²-4x²)+(7x-5x)-(4+6)

Combine like terms

-2x²+2x-10

Hope this helps!! :)

Please let me know if you have any questions

is 4 to 7 the same as 7 to 4? Explain why or why not ​

Answers

They are not the same

The reason why they arent that same is bc they both are in different orders i hope this helps u and may i get brainliest? <3

3.Find the surface area of the figures
(a) 5cm
C
12cm

Answers

167cm man explanation. Mark me brainliest

***HURRY TIMED TEST***
***WILL MARK BRAINLEST***
If f(x) = 8x + 7 and g(x) = square root x + 2, what is (fºg)(2)?​

Answers

Answer:

[tex]8x + 7 =15 \\ gx + 2 =4 \\ [/tex]

1 Jesy invests £8000 for n years in a savings account.

To find the value, V, of her investment after n years she uses the formula:


V = 8000 × (1.025)n

(a) Write down the annual rate of interest Jesy earns.

(b) Find the total amount of interest Jesy earns in three years.

(Total for question 1 is 3 marks)

Answers

Answer:

2.5% , $8608

Step-by-step explanation:

Given data

From the given the expression V = 8000×(1.025)^n

The rate is given as

2.5%

For n= 3

The total amount is

V = 8000 × (1.025)^3

V= 8000*1.076

V= $8608

Hence the final amount is $8608

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