Please help me. Thank you​

Please Help Me. Thank You

Answers

Answer 1

Answer:

AE - 3, EB - 2, EC - 5

Step-by-step explanation:

Use the Pythagorean theorem and you'll find that these are the answers.

Answer 2

I'll answer problem 19

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

Part (a)

The tickmarks on segments DE and DC indicate they are the same length. We're also told that |DC| = |DE| = 5.

So DE is also 5 cm long. Triangle DAE is a right triangle with the 90 degree angle at angle A. Let x be the length of segment AE.

We'll use the pythagorean theorem to find x

a^2 + b^2 = c^2

(AE)^2 + (AD)^2 = (DE)^2

x^2 + 4^2 = 5^2

x^2 + 16 = 25

x^2 = 25-16

x^2 = 9

x = sqrt(9)

x = 3

Segment AE is 3 cm long

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

Part (b)

For any rectangle, the opposite sides are parallel and the same length. This means AB = DC = 5 cm.

We found earlier that AE = 3 cm, so,

AE+EB = AB

3+EB = 5

EB = 5-3

EB = 2

Segment EB is 2 cm long

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

Part (c)

We know that AD = BC = 4 cm, because the opposite sides are the same length.

Earlier in part (b), we found that segment EB was 2 cm long.

Triangle EBC is a right triangle with legs EB = 2 and BC = 4. Let's apply the pythagorean theorem to find EC. Let y = EC.

a^2 + b^2 = c^2

(EB)^2 + (BC)^2 = (EC)^2

2^2 + 4^2 = y^2

4 + 16 = y^2

20 = y^2

y^2 = 20

y = sqrt(20)

y = sqrt(4*5)

y = sqrt(4)*sqrt(5)

y = 2*sqrt(5)

y = 4.4721359

As an exact value, EC is sqrt(20) or 2*sqrt(5) cm long.

As an approximate value, EC is roughly 4.4721359 cm long.

I would ask your teacher if you should use the exact or approximate value.


Related Questions

pls what is 2,504+140+160 plss​

Answers

Answer:

2804

Step-by-step explanation:

2504 + 140 + 160 = 2804   (hint: add the 140 + 160 first. It sums up to 300 which is easy to add to 2504)

Find the distance between the two points
(-2,5) and (-3,7)

Answers

Answer:

[tex]\sqrt{5}[/tex]

Step-by-step explanation:

Answer :√5

Decimal form:2.23606797...

Step-by-step explanation:

Can someone help me on #7 and #9? It is to find x and y in a parallelogram. Thanks! Will give 12 points.

Answers

number 7
3x-40 = x
3x-x = 40
2x = 40
x= 20

v^2 = x+30
v^2= 20+30 = 50
v= radical 50 = 5 radical 2

how do you know you have a direct variation in the relationship between two quantities?

Answers

Answer:

Say you have y=2x. That is direct variation and will always pass through the origin when graphed. When x is multiplied by a number, the y value will also be changed by that number. If you add a y-intercept and change y=2x to, for example, y=2x+2, the x and the y will no longer be related by a constant ratio.

Step-by-step explanation:

What is the degree of the polynomial? 5x^5 - 6x^6 + 2

Answers

Answer:

6

Step-by-step explanation:

Degree of a polynomial is the degree of the monomial with the greatest degree, which in this case is 6x^6, so the degree of this polynomial is 6 because the x is raised to the 6th degree.

The degree of the polynomial 5x⁵-6x⁶ + 2 is 6.

What is a polynomial?

An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial.

Given:

The polynomial,

5x⁵-6x⁶ + 2.

Here, we have the variable x.

And the highest power of a variable is a degree of a polynomial.

So, the degree of polynomial is 6.

Therefore, the degree of the polynomial is 6.

To learn more about the Polynomials;

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Someone plz help the info is in the photo I need to know the error I only have 5mins

Answers

Answer:

.1?

Step-by-step explanation:

I'm sorry,not entirely sure. But i'm going to have to go with .1

PLS HELP ASAP I BEG WILL MARK BRAINLIEST AND GIVE POINTS

Answers

Answer:

in order from top to bottom

one solution

infinite solutions

no solution

Need answer ASAP I’m timed What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?

Answers

Answer:

17

Step-by-step explanation:

(7, 8)  (-8, 0)

First find how much the point moved in y to the second point.

8-0=8

So one side is 8.

Then find how much it moved in x. 7-(-8)=15

So the other side is 15

This will give you 2 sides of a triangle where one sides lenght is 8 the other is 15. Use the pythagoras theorem which is x squared plus y squared = c squared

8^2+15^2=c^2

64+225=c^2

289=c^2 Take the square root of both sides to solve for C

√289= √C^2

17 = c

Estimate the sum of 9/10 and 5/6. Write an equation.

Answers

you need to get the denominators to be the same

The closest one for both is 30

27/30 + 25/30 = 52/30

Simplify to get [tex]1 \frac{11}{15}[/tex]

Sum of [tex]\frac{9}{10}[/tex] and [tex]\frac{5}{6}[/tex] is equal to [tex]\boldsymbol{\frac{26}{15}}[/tex].

What is summation?

A summation, also known as a sum, is the outcome of adding numbers or quantities arithmetically. A summation always has an even number of terms.

Summation is the adding of a series of numbers known as addends or summands; the result is their sum or total.

Sum of [tex]\frac{9}{10}[/tex] and [tex]\frac{5}{6}[/tex] [tex]=\frac{9}{10} +\frac{5}{6}[/tex]

                          [tex]=\frac{27+25}{30}\\\\ =\frac{52}{30}\\\\ =\frac{26}{15}[/tex]

Therefore, sum of [tex]\frac{9}{10}[/tex] and [tex]\frac{5}{6}[/tex] is equal to [tex]\boldsymbol{\frac{26}{15}}[/tex]

Find out more information about summation here:

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need answer plessssssssszzzzz

Answers

Hello the answer is B - 23s-7

HELP ME PLLEEAASSEEE

Answers

Answer:

The relationship is that it might goes by 2

(4a^3+5a^2-a+1)-(5a-2a^3+3)

Answers

Answer:

6a^3 + 5a^2 - 6a - 2

Step-by-step explanation:

(4a^3 + 5a^2 - a + 1) - (5a - 2a^3 + 3)

Combine like terms

4a^3 - (-2a^3) = 6a^3 (- times - = +)

-a - 5a = -6a

1 - 3 = -2

Now combine the answers in standard form (don't forget the 5a^2)

6a^3 + 5a^2 - 6a - 2

Are these lines perpendicular or parallel?
y=-3/2 x+2 and 3x+2y=8

Answers

Answer: there parallel

A box constains 5 chocolate chip cookies, 4 sugar and 6 oatmeal raisin. What is the probability of picking a chocolate chip cookie?

Answers

1/3 because there are 5 chocolate chip cookies and 15 cookies in all. So your fraction would be 5/15 which simplified is 1/3

Help!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

523

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10.

5.23 x [tex]10^{2}[/tex]

Scientific Notation: 5.23 x [tex]10^{2}[/tex]

Expanded Form: 523

good luck, hope this helps :)

Mark plans to save 2.50 each week until he saves 75.00.He uses this equation to represent the number of weeks

Answers

Answer:

2.5x = 75

Step-by-step explanation:

2/3+4/7 is it 26/21 or 6/21 or 3/5 or 6/10

Answers

Answer:

26/21 = 1 5/20 = 4

Answer:

26/21

Step-by-step explanation:

Travis went to the Taco Store. He walked 3 blocks to the restaurant, and he got the special of 5 tacos for $7.00 and a glass of tea for $2.00. How much did Travis spend at the restaurant?

Answers

Answer:

$37.00

Step-by-step explanation:

7x5=35

35+2= 37

now I want some tacos XD

Answer:

Travis spent $37.00 at the taco store

Step-by-step explanation:

5x$7=$35.00

$35+$2=$37.00

92 divided by 11 with remainder

Answers

Answer:

8 remainder 4

Grapes are priced at $2.25 per pound. Which of the following equations best represents the cost, c, of buying g, pounds of grapes?

A. c=2.25g
B. c=g+2.25
C. g=c+2.25
D.g=2.25c

Answers

I think the answer is A. c=2.25g

Simplify 8(x - 4).Simplify 8(x - 4).

8 x - 4
8 x - 32
x - 32
x - 4

Answers

The answer for this question: It’s 8x-32.

Answer:

8(x-4)

= 8x - 32

hope it helps

Considerate of these three numbers express and scientific notation 8.2×10 to the -3rd power 5.2×10 to the $96 and 4.1 times since I'm -6 hours which number is the greatest invite how many times does it rather than smallest number

Answers

Answer:

[tex]8.2 * 10^{-3}[/tex] is the greatest

2000 times greater

Step-by-step explanation:

Given

[tex]8.2 * 10^{-3}[/tex]

[tex]5.2 * 10^{-6}[/tex]

[tex]4.1 * 10^{-6}[/tex]

Solving (a): The greatest of the numbers

First, we convert them to decimals:

[tex]8.2 * 10^{-3} = 0.0082[/tex]

[tex]5.2 * 10^{-6} = 0.0000052[/tex]

[tex]4.1 * 10^{-6} = 0.0000041[/tex]

By comparing the decimal numbers, the highest is: 0.0082.

Hence,

[tex]8.2 * 10^{-3}[/tex] is the greatest

Solving (b): How many times greater than the smallest

In (a) above:

The greatest is: [tex]8.2 * 10^{-3}[/tex]

By comparing the decimal numbers,

The smallest is: 0.0000041 i.e. [tex]4.1 * 10^{-6}[/tex]

The number of times the greatest is greater than the smallest is:

[tex]Number = \frac{8.2 * 10^{-3}}{4.1 * 10^{-6}}[/tex]

[tex]Number = \frac{0.0082}{0.0000041}[/tex]

[tex]Number = 2000[/tex]

Hence, it is 2000 times greater

I need help in math :(

Answers

B. 8 1/5 is the answer

Answer:

B. 8 1/5

Step-by-step explanation:

To find the value of n, we need to isolate it

13+5n = 54  Subtract both sides by 13

5n = 41         Divide both sides by 5

n =  8 1/5

If there are 1.15 land miles in a nautical mile, how
many land miles are there in 10 nautical miles?

Answers

Answer:

11.5

Step-by-step explanation: Since there is 1.15 land miles in one nautical mile you multiply 1.15 by 10 to find how many land miles are in 10 nautical miles.

The number of land miles there in 10 nautical miles will be 11.5.

What is multiplication?

Multiplication is the general procedure in mathematics in which we multiply two or more numbers by each other to find a new multiplied number.

If and only if the number being multiplied is more than one, multiplication produces a resultant number that is significantly larger than the original number.

As per the given,

One nautical mile = 1.15 land miles

In 10 nautical miles = 1.15 x 10 = 11.5 land miles

Hence "The number of land miles there in 10 nautical miles will be 11.5".

For more information about multiplication,

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Find f(2) if f(x)=(x+1)^2
a.6
b.9
c.5​

Answers

Answer:

b. 9

Step-by-step explanation:

f(2) if f(x)=(x+1)^2

= (2 + 1)^2 = (3)^2 = 9

i hope its help

PLEASE I REALLY NEED YOUR HELP ASAP!! WILL MARK BRAINIEST
Find each length
5. the length of the hypotenuse of a 45 degree- 45 degree- 90 degree triangle with a leg of 12
6. the length of the longer leg of a 30 degree- 60 degree- 90 degree triangle with a hypotenuse of 14, where theta = 60 degrees

Answers

Answer:

12√2

7√3

Step-by-step explanation:

The length of the hypotenuse of a 45°-45°-90° triangle with a leg of 12 is 12√2 and the length of longer leg is 7√3 for 30°-60°-90° triangle.

What is Right Angled Triangle?

Right angled triangle are those triangle for which one of the angle is 90 degrees.

Ratio of the sides of a 45°-45°-90° triangle is 1 : 1 : √2.

That is,

If sides opposite to 45° = x, then the side opposite to 90° = √2 x

That is, length of the hypotenuse = √2 x

Given length of a leg = 12

Length of the hypotenuse = √2 × 12 = 12√2.

Ratio of the length of sides of 30°-60°-90° triangle is 1 : √3 : 2.

That is,

Length of side opposite to 30° = x

Length of side opposite to 60° = √3 x

Length of side opposite to 90° = 2x  (Hypotenuse)

We have to find the longer leg, that is √3 x.

Length of hypotenuse = 14

2x = 14 ⇒ x = 7

Length of longer leg = 7√3

Hence the lengths are 12√2 and 7√3.

To learn more about Right Angled Triangles, click :

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15 out of 60 markers are blue. What percent of the markers are blue?

How will we solve this problem?

Answers

Answer:

Step-by-step explanation:

if 15 out of 60 markers are blue

the percentage is 15/60=1/4

0.25*100=25%

One 50 lb bag of fertilizer will cover 75 square feet of lawn. How many pounds of fertilizer will Molly need to cover 120 square feet of lawn?

Answers

Answer:

x=80

Step-by-step explanation:

80 pounds of fertilizer will cover 120 square feet of lawn. :]

Answer:

x=80

Step-by-step explanation:

this is the answer am i right

Which of the following situations could be modeled with a parabola that is concave up? a rocket that is launched into the air a rope bridge a soccer ball being kicked across the field the flow of the water from a water fountain

Answers

Answer:

djdjfjfjfhfhfhd ch fmdknfrus M dnqjw

There are sol students in the
school. 4/9 of the total number of
students are boys. The rest are
girls. How many more girls are there
than boys?

Answers

Answer:
I think the answer is 5/9
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