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
Leya [2.2K]
3 years ago
9

Rex has a collection of 160 toy dinosaurs to put into 4 boxes. He puts 5 handfuls of toy dinosaurs in each box. There are no toy

dinosaurs left. Four friends estimate how many toy dinosaurs Rex has in each handful. Which estimation is the best?
Mathematics
1 answer:
SpyIntel [72]3 years ago
8 0

Answer: 8 dinos

Step-by-step explanation:

there are 4 boxes and 5 handfuls in each. divide 160 by 4 and divide that, 40, by 5 to get 8

You might be interested in
PLEASE SOMEONE DO THIS IM RUSHING SO BAD AND IM CRYING - GIVING BRAINLIEST!!!!!
LUCKY_DIMON [66]

Answer:

1.) $1.07

2.) $2.25

3.) $14.20

Step-by-step explanation:

1.) Toonie = 2 CAD

CAD = USD $1.57

$1.57 - $0.50 = $1.07 (USD)

2.) $2.75 - $5 = $2.25 (USD)

3.) $20 x 4 = 80

$80 - $65.80 = $14.20 (USD)

Hope this helped!

8 0
3 years ago
Integration by Parts Evaluate e-2x cos(2x) dx.​
kifflom [539]

Let

I = \displaystyle \int e^{-2x} \cos(2x) \, dx[/]texIntegrate by parts:[tex]\displaystyle \int u \, dv = uv - \int v \, du

with

u = e^{-2x} \implies du = -2 e^{-2x} \, dx \\\\ dv = \cos(2x) \, dx \implies v = \dfrac12 \sin(2x)

Then

\displaystyle I = \frac12 e^{-2x} \sin(2x) + \int e^{-2x} \sin(2x) \, dx + C

Integrate by parts again, this time with

u = e^{-2x} \implies du = -2 e^{-2x} \, dx \\\\ dv = \sin(2x) \, dx \implies v = -\dfrac12 \cos(2x)

so that

\displaystyle I = \frac12 e^{-2x} \sin(2x) - \frac12 e^{-2x} \cos(2x) - \int e^{-2x} \cos(2x) \, dx + C\\\\ \implies I = \frac{\sin(2x)-\cos(2x)}{2e^{2x}} - I + C \\\\ \implies 2I = \frac{\sin(2x) - \cos(2x)}{2e^{2x}} + C \\\\ \implies I = \boxed{\frac{\sin(2x) - \cos(2x)}{4e^{2x}} + C}

6 0
2 years ago
How many triangles in the diagram can be mapped to one another by similarity transformations?
Fynjy0 [20]

Answer:

the answer is 3


Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
P.7 Is an even number or Q: 3 is square root of 10 ( P v Q )<br>answer asap please
Arte-miy333 [17]
The correct answer is the Last Choice ft equals truth
7 0
4 years ago
A and b are positive integers and a–b = 3. Evaluate the following: 27^ (1/3 b)/9^ (1/2 a)
maxonik [38]

Answer:

1/27

Step-by-step explanation:

27^(b/3)/9^(a/2) = (27^(1/3))^b/(9^(1/2))^a = (3^b)/(3^a) = 3^(b-a)

= 3^(-(a-b)) = 3^-3 = 1/3^3 = 1/27

5 0
3 years ago
Other questions:
  • Which diagram correctly shows all lines of symmetry in the figure?<br> (Please say why)
    7·1 answer
  • A grade school teacher has developed several ideas about how to improve her students’ learning outcomes, and now she needs to pi
    14·1 answer
  • 76 is 80%of what number ?
    10·2 answers
  • (1,4) (6,-1) what is the y intercept of the line and how did you find it?
    6·1 answer
  • Simplfy <img src="https://tex.z-dn.net/?f=8x-5%2B2x%5Cfrac%7Bx%7D%7By%7D" id="TexFormula1" title="8x-5+2x\frac{x}{y}" alt="8x-5+
    14·1 answer
  • 1. Following are the terms of the toothpick sequence: 8, 14, 20, 26, 32.
    14·1 answer
  • Please help me answer this question​
    6·1 answer
  • How to factor 4z⁴ + 68z²+ 225
    13·2 answers
  • the radius of a circle on a basketball court is 6 feet what are the approximate circumference and area of the circle​
    15·1 answer
  • 「路學參
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!