1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Goryan [66]
3 years ago
11

Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.

Mathematics
1 answer:
never [62]3 years ago
5 0

Vicki: 10 + 10 + 20 = 40

Johnny: 10 + 10 + 30 = 50

50 - 40 = 10 birds

You might be interested in
A computer programming team has 13 members. a. How many ways can a group of seven be chosen to work on a project? b. Suppose sev
Julli [10]

Answer:

1716 ;

700 ;

1715 ;

658 ;

1254 ;

792

Step-by-step explanation:

Given that :

Number of members (n) = 13

a. How many ways can a group of seven be chosen to work on a project?

13C7:

Recall :

nCr = n! ÷ (n-r)! r!

13C7 = 13! ÷ (13 - 7)!7!

= 13! ÷ 6! 7!

(13*12*11*10*9*8*7!) ÷ 7! (6*5*4*3*2*1)

1235520 / 720

= 1716

b. Suppose seven team members are women and six are men.

Men = 6 ; women = 7

(i) How many groups of seven can be chosen that contain four women and three men?

(7C4) * (6C3)

Using calculator :

7C4 = 35

6C3 = 20

(35 * 20) = 700

(ii) How many groups of seven can be chosen that contain at least one man?

13C7 - 7C7

7C7 = only women

13C7 = 1716

7C7 = 1

1716 - 1 = 1715

(iii) How many groups of seven can be chosen that contain at most three women?

(6C4 * 7C3) + (6C5 * 7C2) + (6C6 * 7C1)

Using calculator :

(15 * 35) + (6 * 21) + (1 * 7)

525 + 126 + 7

= 658

c. Suppose two team members refuse to work together on projects. How many groups of seven can be chosen to work on a project?

(First in second out) + (second in first out) + (both out)

13 - 2 = 11

11C6 + 11C6 + 11C7

Using calculator :

462 + 462 + 330

= 1254

d. Suppose two team members insist on either working together or not at all on projects. How many groups of seven can be chosen to work on a project?

Number of ways with both in the group = 11C5

Number of ways with both out of the group = 11C7

11C5 + 11C7

462 + 330

= 792

8 0
2 years ago
Evan wants to make a kneeling pad cushion for when he gardens for long periods of time. It will have the dimensions shown. How m
____ [38]

Question

Even wants to make a kneeling pad cushion for when he gardens for long periods of time. How much fabric should he buy to cover the cushion?​

Answer:

Surface area, 440 in 3

Step-by-step explanation:

I just did this question on my assignment on Edge 2021

3 0
2 years ago
Read 2 more answers
(1.3x + 2.4) + (-6.1x – 3.2)
melisa1 [442]

Step-by-step explanation:

In simplify form: 1.3x+2.4-6.1-3.2 = -4.8x-0.8

or factor the expression: =-4/5×(6x+1) Alternate form: -0.8(6x+1). I hope this helps.

8 0
2 years ago
1. A taxicab ride costs $1.30 plus $0.85 per mile. If the total cost of the trip
Tems11 [23]
The passenger travelled 12 miles
5 0
3 years ago
Read 2 more answers
Find all points on the curve y = cos x, 0 ≤ x ≤ 2π, where the tangent line is parallel to the line y = -x.
andre [41]

Answer:

90⁰

Step-by-step explanation:

y=cosx

y'= -sinx

eqñ of tangent is y=-x

slope of tangent =-1

we know...

slope of tangent = y' or derivative of y

-sin x = -1

sin x= 1

x = 90⁰

7 0
2 years ago
Other questions:
  • does anybody know the answer to adrian cuts a block of wood as shown. What is the volume of the block of wood?
    7·1 answer
  • Factor the polynomial below.<br><br> 30x^2 + 15x^2 +10x
    13·2 answers
  • John’s age is three times that of Alan’s. Ralph’s age is twice that of Alan’s.
    10·2 answers
  • How do you simplify 9*499 using the distributive property?
    10·2 answers
  • What is 95-65= and then divide it by five then multiply it by ten
    5·2 answers
  • Could someone help me
    6·1 answer
  • 30 POINTS!!!
    7·1 answer
  • Is a diameter of 9cm more than a radius of 5cm and which would have the larger circumference?
    8·1 answer
  • If the sum of 37 and 12 x is 286, what is the value of x?
    13·1 answer
  • Help me ples kskskskskskksks
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!