Mathematics High School

please help and show work​

Please Help And Show Work

Answers

Answer 1

To prove that the triangle is scalene, calculate all the lengths of the sides.

The formula for a line like this is basically pythagorean theorem, which is

[tex]p = \sqrt{ {(y2 - y1)}^{2} + {( x2 - x1})^{2} } [/tex]

(x1, y1) and (x2, y2) are the respective vertexes.

Related Questions

write an expression for the perimeter of the triangle shown below 2.3x + 14 2x -0.2x + 15

Answers

Answer:

4.1x + 29

Step-by-step explanation:

So the perimeter would be the sum of all of the sides, so:

[tex]2.3x + 14 + 2x - 0.2x + 15\\= 4.1x + 29[/tex]

Answer: 4.5x+ 29 which is 3, so 3 is correct.

Step-by-step explanation:

P = a+b+c

First do the ordered pairs ( add the numbers with the x to the end, then add the other numbers with no x's)

Find the area of this triangle. Round to
the nearest tenth.
20 ft
9 ft
1100
15 ft
[? ]ft2
Enter

Answers

Answer:

63.3 square feet

Step-by-step explanation:

Let a = 20 ft, B = 15 ft, c = 9ft

[tex] s=\frac{a+b+c}{2} [/tex]

[tex] s=\frac{20+15+9}{2} [/tex]

[tex] s=\frac{44}{2} [/tex]

[tex] s=22\: ft[/tex]

[tex]Area \: of \:\triangle = \sqrt{s(s - a)(s - b)(s - c)} \\ \\ = \sqrt{22(22 - 20)(22 - 15)(22 - 9)} \\ \\= \sqrt{22 \times 2 \times 7 \times 13} \\ \\= \sqrt{44 \times 91} \\ \\ = \sqrt{4,004} \\ \\ = 63.2771681 \\ \\ \approx 63.3 \: {ft}^{2} [/tex]

Jeanette wants to tile the floor of a room in her house. The square tiles measure 3/4 ft on each side. The room is 10 ft wide.
a. Write an inequality to describe how many tiles are needed to make one row of tiles across the width of the room.
b. Solve the inequality.
c. How many tiles should Jeanette buy to form one row?


A. [tex]\frac{3}{4}[/tex]t[tex]\geq[/tex]10; t[tex]\geq[/tex]13[tex]\frac{1}{3}[/tex]; 7[tex]\frac{1}{2}[/tex]

B. [tex]\frac{3}{4}[/tex]t [tex]\geq[/tex]10; t[tex]\geq[/tex]13[tex]\frac{1}{3}[/tex]; 13[tex]\frac{1}{3}[/tex]

C. [tex]\frac{3}{4}[/tex]+t[tex]\geq[/tex]10; t[tex]\geq[/tex]9[tex]\frac{1}{4}[/tex]; 10

D. [tex]\frac{3}{4}[/tex]t[tex]\geq[/tex]10; t[tex]\geq[/tex]13[tex]\frac{1}{3}[/tex]; 14

Answers

Answer:

D. 3/4>=10; t>=13 1/3; 14

Step-by-step explanation:

 

Solving the above inequality.....

So, Jeanette should buy 14 tiles to form one row.

A local hamburger shop sold a combined total of 376 hamburger and cheeseburgers on Sunday. There were 74 fewer cheeseburgers sold than hamburgers. How many hamburgers were sold on Sunday?

Answers

Answer:

82

Step-by-step explanation:

let X = the number of hamburgers sold

let Y = the number of cheeseburgers sold  a combined total of 328 were sold

so: X + Y = 328

cheeseburgers = 3 times the number of hamburgers sold  

so: Y = 3X

substitute 3X into the equation for Y

X + 3X = 328

4X = 328

divide both sides by 4 to get the variable X by itself

X = 82

so: 82 hamburgers were sold Friday

Answer:

There were 225 hamburgers sold on Sunday.

Step-by-step explanation:

2h - 74 = 376

h = hamburgers

2h - 74 + 74 = 376 + 74

2h = 450

2h/2 = 450/2

h = 225

Check.

hamburgers + cheeseburgers = total number of burgers

225 + (225 - 74)

225 + 151 = 376

Please help pleaseeeeeeee ​

Answers

Answer:

it is 10.5 cm squared! I hope this helps

help if you answer something not related to this I will report

Answers

Answer:

Complement of 50° = 40°

Supplement of 145° = 35°

Complement of 27° = 63°

Supplement of 50° = 130°

Step-by-step explanation:

Complementary angles add up to 90°

Supplementary angles add up to 180°

90° - 50° = 40°

180° - 145° = 35°

90° - 27° = 63°

180° - 50° = 130°

Answer:

Complement 50° = 40°

Supplement 145° = 35°

Complement 27° = 63°

Supplement 50° = 130°

Complement angles = adds up to 90°

Supplement angles = adds up to 180°

Brainly plz :))

Reduce 21/24
What is the answer to this?

Answers

Answer:

7/8 or 0.875

Step-by-step explanation:

Mang Nathaniel is selling two kinds of vinegar. Silver duck is priced at Php
10 per bottle and Reyna Puti is priced at Php 15 per bottle. If he needs a
total sales of Php 600.00, how many bottles of Reyna Puti should he sell if
there were already 30 bottles of Silver duck sold?

Answers

Answer:

Reyna Puti sold = 20 bottles

Step-by-step explanation:

Silver duck = Php 10 per bottle

Reyna Puti = Php 15 per bottle

Silver duck sold = 30 bottles

Reyna Puti sold = x bottles

Total sales = Php 600.00

Total = cost of Silver duck * number sold + cost of Reyna Puti * number sold

600 = 10 * 30 + 15 * x

600 = 300 + 15x

600 - 300 = 15x

300 = 15x

x = 300/15

x = 20 bottles

Reyna Puti sold = 20 bottles

În desen este reprezentat trapezul
ABCD și O punctul de intersecție a di-
agonalelor AC și BD. Completați case-
ta, astfel încât să obțineți o propoziţie
adevărată:
Dacă aria triunghiului DOA este egală
cu 20 cm², atunci aria triunghiului COB
este egală cu​

Answers

Answer:

ab hyppotenusejabqianahqiwnna. jajabanqk

What is the slope of the line shown?

A. slope = 3
B. slope = 1/2
C. slope = 2
D. slope = -3

Answers

i think it’s 1/2, you have to count the rise over run from a point to the next, so it would go one up and then two over

Answer:

The answer is B - 1/2.

Step-by-step explanation:

Rise over run tells you the slope. You take two points (in this it's (0,-3) and (6,0)) and you see how many units it takes to be on the same y line as the other point. Then you do the same for the x line. You divide the rise (y line) by the run (x line) and that's your slope.

Can yall help its due in 30 minutes

Answers

Answer:

$462.50

Step-by-step explanation:

:))

Solve for x. Round your answer to the nearest tenth.
9.2
X
16.5

Answers

Answer:

152

Step-by-step explanation:

12x + 15y = 9
−12x − 18y = −6
HELP JUST SOLVE IT

Answers

Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(2, -1)

Equation Form:
x= 2, y= -1

Answer:

x = 2, y = -1

Step-by-step explanation:

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

12x+15y=9,−12x−18y=−6

Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.

12x+15y=9

Subtract 15y from both sides of the equation.

12x=−15y+9

Divide both sides by 12.

x=  1/12 (−15y+9)

Multiply 1/12 ​ times −15y+9.

x = -5/4y+3/4

Substitute -5y+3/4 for x in te other equation, -12x - 18y = -6

-12 ( -5/4y+3/4) -18y = -6

Multiply −12 times -5y +3/4

15y−9−18y=−6

Add 15y to −18y.

−3y−9=−6

Add 9 to both sides of the equation.

−3y=3

Divide both sides by −3.

y=−1

Substitute −1 for y in x= -5/4y+3/4. Because the resulting equation contains only one variable, you can solve for x directly.

x= -5/4(-1)+3/4

Multiply -5/4 times -1.

x = 5+3/4

Add 3/4 to 5/4 by finding a common denominator and adding the numerators. Then reduce the fraction to lowest terms if possible.

x=2

The system is solved.

HELPPP ME PLEASEEE!!!!

Answers

You need a common denominator in your case 2x4=8 ( because those are the demoninators) then 1x2=2 and 2x4=8 8/8 2/4 meaning it’s one half

That's not an answer for me

Answers

Answer:

so you need a answer or a question

Answer:

child anywaysssss

Step-by-step explanation:

yfgxgx

7. What is the area of the trapezoid shown? 4 cm 10 cm 8 cm W 10 cm​

Answers

Answer:

88 ... .... . ... . . . ... ............... ....

Write your own algebraic expression with atleast four terms that can simplify to 12x+4 (PLEASE HELP ASAP)​

Answers

Answer:

4(2x + 1) + 4x   =   8x + 4 + 4x   =   12x + 4

What is the vertex form of 3x^2+6x+10

Answers

3x² + 6x + 10

= 3(x+1)² + 7

Vertex (h,k)
= (-1,7)

Answer:

3x2+6x−10

y=3x2+6x−10

Rewrite the equation in vertex form.

y=3(x+1)2−13

Use the vertex form, y=a(x-h)2+k, to determine the values of a h, and k.a=3h=−1k=−13 (h,k).(−1,13)

Step-by-step explanation:


Given a sphere with a radius of 2 cm find its volume to the nearest whole number.

A 17 cm

B.3cm

C. 33 cm

D. 3 cm

Answers

D for sure it is Bc the whole number

6 x 10^8 is how many times a large as 2 x 10^3

Answers

the answer should be 3 x 10⁵

Answer:

it is 300000 time large

Step-by-step explanation:

Hope this Helped

Natilie invested $200 in a savings account that earned 4% simple interest each year. She invested for
two years without adding or taking money from her account.

A. How much INTEREST has she made? (I=PRT or Interest = Principal x Rate x Time

B. How much money does she have in total? Show work for both.

Answers

A.$16 in interest
B.$216 total after 2 years
Good luck brainliest would be appreciated

A measure of how much space something takes up ?

Answers

Answer:

Volume

Step-by-step explanation:

Mass is measured using a scale. Volume is the amount of space matter takes up. Volume can be measured by multiplying the length, width, and height of an object, or by using a measuring cup and seeing how the measurement of water changes in a cup. Density is the amount of matter an object has in a certain space.

Answer:

VOLUME

Step-by-step explanation:

-6x-7-4x-2 How can I solve this?

Answers

Use the distributive property method

Use PEMDAS

Parentheses first

Exponents next

Multiplication then

Division in the same step

Addition then

Subtraction

The correct answer is 10x-9

in integers how to know if minus (-) 1 upon 2 is greater or minus (-) 1 is greater???​

Answers

Answer:

1/2 is 0.5 so -1/2=-0.5

-0.5 is greater than -1

use a number line

Step-by-step explanation:

By looking at the number line we can easily tell which integers are greater (larger) than a certain number and which are less (smaller) than the number. When two numbers are located on a number line, the number to the right is larger than the number to the left. –1 is less than –1/2 because it is to the left of –1/2.

(Please heart the answer if you find it helpful, it's a motivation for me to help more people)

HELPPP PLEASEEEEEEE I NEED HELP

Answers

Answer:

Part A:   -3x^8 + 2x^5 + 4x^3

Part B:   8

Part C:   3

Part D:   -3x^8

Part E:   -3

Step-by-step explanation:

A. Standard polynomial is :

[tex] - 3 {x}^{8} + 2 {x}^{5} + 4 {x}^{3} [/tex]

B. Degree of the polynomial is : 8

C. Number of terms are : 3

D. Leading term of the polynomial is:

[tex]-3 {x}^{8} [/tex]

E. Leading co effecient of the polynomial is: -3

The sum of a number and 9 is 21. Find the number.

Answers

Answer:

12

Step-by-step explanation:

Tell whether the table of values represents a linear or an exponential function.
x = -3,-2, -1,0, 1
y = 1,2,4,8, 16
The table represents
function.
The function is y=

Answers

Answer:

well if u think abut adding them or multyplying them then if u round all the numbers to the nearest 100s then u will get ur answer witch is 122 is ur answer

Step-by-step explanation:

What is the square root of 10 plus 25 minus 5 times 20

Answers

Answer: √

10

−

75

Step-by-step explanation:

Answer:

463.245553

Step-by-step explanation:

3.16227766+25-5 times 20

Benjamin took a taxi from his house to the airport. The taxi company charged a pickup fee of $2.60 plus $3 per mile. The total fare was $74.60, not including the tip. How many miles was the taxi ride?

Answers

Answer:

74.60=3x+2.60

74.60-2.60=72

72/3=24

x=24

the taxi ride was 24 miles

HELP ASAPP! Practice 9.4 - 9.5

ONLY QUESTIONS 6,8,9 AND SHOW WORK PLEASE!!

Answers

Answer:

6.JMK=90-28

=62

STR=180-118

=62

(PROVEN)

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