Can a triangle be formed with the sides lengths of 7 cm, 5 cm and 12 cm?

Answers

Answer 1

Answer:

NO because 7+5=12

The sum must be larger (not equal to) the longest side. If it's exactly the same, there's no room to for the shorter two sides to angle up to form a triangle.


Related Questions

6. For a trip to the beach, Kelly drove for 5/6 hour and Joshua drove for 2/5 hour. How much longer did Kelly drive than Joshua? Find the exact amount.​

Answers

first find common denominator, i went with 30. multiply the numerators, they should be 12/30 and 25/30. now just subtract 25/30-12/30 which gives us 13/30.
ANSWER: 13/30 or 26 minute difference

The number of hours Kelly drove longer than Joshua is 13/30 hours.

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

The number of hours driven by Kelly.

= 5/6 hours

The number of hours driven by Joshua.

= 2/5 hours

Now,

The difference between the number of hours driven by Kelly and Joshua.

= 5/6 - 2/5

= (25 - 12)/30

= 13/30

Thus,

Kelly drove 13/30 hours longer.

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Subtract 3x^2+8x3x 2 +8x from -9x^2+3x-8−9x 2 +3x−8.

Answers

Answer:

x =(-8+√-32)/6=(-4+2i√ 2 )/3= -1.3333+0.9428i

Step-by-step explanation:

0.7c-1.5c c=13 d=3 ...............................

Answers

Answer:

4.6

Step-by-step explanation:

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

105

Step-by-step explanation:

A straight line is 180 degrees so 180-75=105

Answer:

x= 105 degrees

Step-by-step explanation:

We know that the sum of x and 75 degrees is equal to 180 degrees.

So that means that x= 180-75 or x=105 degrees

(11 - 3) x [ 15 + (10 - 5)] write 3 steps using pemdas

Answers

Answer:

160

Step-by-step explanation:

Solve for X
2x - 8 = 30

Answers

Answer:

x=19

Step-by-step explanation:

2x - 8 = 30

get x by itself by adding 8 to both sides

2x=38

divide by 2

x=19

If you make x dollars per hour and you work 8 hours, how much money will you make?

Answers

You would make X amount of dollars. I can’t give you an exact amount of money because you didn’t tell me how much you make per hour!

math nation section 7

Answers

which question do you need help with?

Answer:

I don't understand the ques?

Step-by-step explanation:

A Redbox movie costs $1.50. Redbox charges $1 per day for late movies. If Henry's movie is 3 weeks late, how much money does he owe for his movie?

Answers

Answer:

$22.50

Step-by-step explanation:

3 weeks = 21 days

21 × 1 + 1.50

21 + 1.50

22.50

The local grocery store sells a bag of dog food for $22. The store pays $13 for the dog food which equation can be used to find the markup on the dog food?

Answers

Answer:

2

Step-by-step explanation:

Use ΔDEF, shown below, to answer the question that follows:
What is the value of x rounded to the nearest hundredth? Type the numeric answer only in the box below.

Answers

Here are the steps I would use to complete this question.

1 The number of guests, g, coming for dinner is not 8

2 the distance of the race d is at least 6 miles

what is the inequality for each of the solutions ​

Answers

Answer:

1. g < 8

2. d ≤ 6

Find the degree of the monomial.
8b^7c^2
The degree of the monomial is?

Answers

Answer:

49c2

Step-by-step explanation:

Find the coordinate point for D that would make ABDC a rhombus.

coordinate plane with points A 2 comma 2, B 3 comma 4, and C 4 comma 1

(5, 4)
(5, 2)
(5, 3)
(3, 0)

Answers

Answer: The correct answer is (5, 3)

Step-by-step explanation: I got it right on the exam

(5,3) will make a rhombus.

What is Rhombus?

A Quadrilateral with all sides equal but with nonequal diagonals is know as Rhombus.

How to solve?

Let D have coordinate (x,y)

The length of all the sides of the rhombus is equal.

length of AB = [tex]\sqrt{({2-3})^2 + ({2-4})^2} = \sqrt{1+4} = \sqrt{5}[/tex]

Similarly BD = [tex]\sqrt{({3-x})^2 + ({4-y})^2} = \sqrt{25+{x}^2+{y}^2-6x-8y}[/tex] -------------(1)

CD = [tex]\sqrt{({4-x})^2 + ({1-y})^2} = \sqrt{17+{x}^2+{y}^2-8x-2y}[/tex] -------------(2)

We know BD = CD gives,

[tex]\sqrt{17+{x}^2+{y}^2-8x-2y} = \sqrt{25+{x}^2+{y}^2-6x-8y}[/tex]

By squaring both sides and solving we get,

3y - x = 4 ----------------------(3)

Since BCD is a right-angled triangle,

[tex]{BC}^2 = {BD}^2 + {CD}^2[/tex]  

BC = [tex]\sqrt{10}[/tex]

10 = 5 + [tex]\sqrt{17+{x}^2+{y}^2-8x-2y}[/tex]

8  = [tex]{x}^2+{y}^2-8x-2y[/tex] -------------------(4)

solving equation (3) and (4) we get x = 5 and y = 3

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Katy invests £200 000 in a savings account for 4 years. The account pays compound interest
at a rate of 1.5 % per annum.
Calculate the total amount of interest Katy will get at the end of 4 years

Answers

Answer:

212272.71

Step-by-step explanation:

we have the following equation (for interesting that compound yearly)

PV(1+i)^n

200000(1+.015)^4

212272.71

The total amount of interest Katy will get at the end of 4 years is £12,272.71

Compound interestCompound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on principal plus interestCompound interest refers to the phenomenon whereby the interest associated with a bank account, loan, or investment increases exponentiallyrather than linearlyover time.Compound interest (or compounding interest) is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods

How to solve this problem?

The steps are as follow:

Given:

p = £200 000

r = 1.5%

n = 4 years

Formula to find Amount (A) after 4 years will as follow:

A = p(1+r/100)ⁿ

A = 200000(1+1.5/100)⁴

A = 212,272.71 £

The compound interest is given by:

C.I. = A - p

C.I. = 212,272.71 - 200,000

C.I. = £12,272.71

So the  total amount of interest Katy will get at the end of 4 years is £12,272.71

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A jumping spider hunts for its
food. When it gets close to its
prey, it jumps into the air and
pounces on it.

A jumping spider can jump
40 times its body length. One
jumping spider is 2 centimeters
long. How far can it jump?

Answers

80 inches or feet.. I think you are suppose to multiply 40x2 sorry if im wrong

Which equation is not a polynomial.

A.-sqrt(2)
B.-3x^2+xy-2y^2
C.x^/y +3xy -2y^2/x
D.sqrt(2a^2)-4xy-2x^2y^2
E.5x^-2 +x^-1 y-2

Answers

A. -sqrt(2)

Explanation:
there are no degrees, etc

Lauren has a purse full of dimes and quarters. She has 25 less dimes than quarters. If she has a total of $10.45, which system of equations would she write to find the number of dimes, d and quarters, q?​

Answers

Answer:

D(0.10) + Q(0.25) = 10.45

Q = D + 25 (or Q - D = 25)

Step-by-step explanation:

D = number of dimes

Q = number of quarters

D(0.10) + Q(0.25) = 10.45

Q = D - 25 (or D - Q = 25)

We multiply the number of dimes she has by $0.10, because that is the worth of each dime, and we multiply the number of quarters she has by $0.25 because that is the worth of each quarter. We then set that equal to $10.45, the overall value of her coins.

Because she has 25 less dimes than quarters, the number of dimes she has should be 25 less than the number of quarters she has. So the number of quarters she has should be equal to the number of dimes she has plus 25.

Plz, Help me! I will give a point if you help answer! with 5 star rating, Thanks, and Brainliest!

Answers

Answer:

-4/10+(-7/10)= -1 1/10(the bottom left one)

Step-by-step explanation:

starts from 0 and subtract 4/10.  From there you subtract 7/10 more.

Your bill at a restaurant was for $36. You want to leave a 15 % tip. What would the tip amount be?
$5.40
$6.20
$4.17
$2.40

Answers

$5.40 sorry if i am incorrect

The point is (8,9) is a solution to this system

Answers

Answer:

False

Step-by-step explanation:

I got that they intercepted at (10.857,0.4286)

y=1/2x-5

y=-3x+33

9 1/4- 2 5/8 in simpilest form

Answers

Answer:19.625

Step-by-step explanation:


Order of operations. Need to find the unknown number. Help?

8 + 2 x 5 = m
9 - 7 + 2 = k
7 x 8 - 6 = g
16 + 4 divide 2 = s
12 - 6 divide 2 = y
36 divide 6 + 13 = f

Answers

Answer:

m = 18

k = 4

g = 50

s = 18

y = 9

f = 19

Step-by-step explanation:

M = 18
K = 4
G = 42
S = 18
Y = 9
F = 19

There can be more than 1 answer btw :)

Answers

Answer:

A and D

Step-by-step explanation:

SOMEONE HELP I NEED TO PASS

Answers

number 3 is y - 9 = 3/7 • (x + 6)

Please answer ASAP!!!!!!!

Answers

Answer:

B is the correct answer

Step-by-step explanation:

just did this problem

If $700 is invested in an account that pays 3% compounded annually, the total amount, A(t), in the account after t years is Ant 700(1.03)^t.

Required:
a. Find the average rate of change per year of the total amount in the account for the first four years of the investment (from t= 0 to t= 4).
b. Find the average rate of change per year of the total amount in the account for the second four years of the investment (from t=4 to t=8)
c. Estimate the instantaneous rate of change for t =4.
d. The average rate of change per year of the total amount in the account for the first years of the investment â(from t= 0 to t=4â) is ___________â$
e. The average rate of change per year of the total amount in the account for the second years of the investment â(from t= 0 to t=4â) is_____________ â$
f. The instantaneous rate of change for t=4 is about â$_____________

Answers

Answer:

21.96 ; 24.72

Step-by-step explanation:

Given that :

Give the equation:

A(t) = 700(1.03)^t

A.)

Average rate of change over the first 4 years ;

(t=0 to t=4)

At t = 0

A(0) = 700(1.03)^0 = 700

A(1) = 700(1.03)^1 = 721

A(2) = 700(1.03)^2 = 742.63

A(3) = 700(1.03)^3 = 764. 9089

A(4) = 700(1.03)^4 = 787.856167

[(721 - 700) + (742.63 - 721) + (764.9089 - 742.63) + (787.856167 - 764.9089)] / 4

= 87.856167 / 4

= 21.96404175

= 21.96

Over the 2nd 4 years :

A(4) = 700(1.03)^4 = 787.856167

A(5) = 700(1.03)^5 = 811.49185201

A(6) = 700(1.03)^6 = 835.8366075703

A(7) = 700(1.03)^7 = 860.911705797409

A(8) = 700(1.03)^8 = 886.73905697133127

[(811.49185201 - 787.856167) + (835.8366075703 - 811.49185201) + (860.911705797409 - 835.8366075703) + (886.73905697133127 - 860.911705797409)] / 4

= 98.88288997133127 / 4

= 24.72


anyone?............

Answers

[tex] \frac{132 }{2?} = 66[/tex]

Find the rate of change in a table

Answers

Answer:

excuss me where the picture

Step-by-step explanation:

There’s no picture? There’s no table how to u find the rare of change without the table

NEED HEPL ASAP. If mZPOQ = 19, and mZQOR = 31
and mZROS = 15, what is mZPOS?

Answers

Answer:

65

Step-by-step explanation:

just to sum all the given measurements:

19+31+15=65.

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