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
Effectus [21]
3 years ago
9

How many birds did she see in all. and how to solve

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
3 0
She saw 21 birds in total.
You might be interested in
Question on picture
fenix001 [56]
I think you have the right one.
6 0
3 years ago
Todd had 3/4 of an Apple left from breakfast. his sister are 1/8 of what was left. how much of the Apple is left
Rus_ich [418]
0.625 or <span>5/8 left of the apple</span>
7 0
3 years ago
(-3)^3(2^6)/(-3)^5(2)^2=(2)^a/(-3)^b=c/d<br> What are the values of a,b,c,and d
andreyandreev [35.5K]

Answer:

See below in bold.

Step-by-step explanation:

(-3)^3(2^6)/(-3)^5(2)^2

= (-3)^(3-5)*(2^4)

= 2^4 / (-3)^2   so  a = 4 and b = 2.

2^4 / (-3)^2

= 16/9    so c = 16 and d = 9.

5 0
3 years ago
11. An experiment is set up to study the weights of 45 frogs after they are given a hormone treatment. The population mean is 22
sveta [45]

Answer: The standard error of the sample mean = 0.44

Step-by-step explanation:

Standard error of the sample mean = \dfrac{\sigma}{\sqrt{n}}<em> , where </em>\sigma = population standard deviation , n= sample size.

Given : n= 45 , \sigma= 2.96 grams

The e standard error of the sample mean =\dfrac{2.96}{\sqrt{45}}

=\dfrac{2.96}{6.7082039325}\\\\\approx\ 0.44

Hence, the standard error of the sample mean = 0.44

5 0
3 years ago
William returned an acoustic guitar that cost $245.75. He bought a bass guitar that cost $368.45. Which of the following stateme
gayaneshka [121]
D Robby got a credit of -245.75 for returning the guitar but purchased the new one for +368.45=+122.70 that Robby still owes for the bass guitar.
3 0
3 years ago
Read 2 more answers
Other questions:
  • How do I factor this polynomial by grouping?<br> 2x^2 - 13x + 20
    15·2 answers
  • Which of the following are exterior angles? Check all that apply.
    11·2 answers
  • Jessica takes 4 business trips a month for x months in a row. Write an expression to show how many business trips Jessica has ta
    9·1 answer
  • Find a8 when a1 = 40,000, r = 0.1
    5·2 answers
  • What is 11/12 minus 2/3?????
    5·2 answers
  • Algebraic expression<br>X2-25​
    11·1 answer
  • Simplify: (4 – 5) – (13 – 18 + 2)<br> (a) -1,<br> (b) –2,<br> (c) 1,<br> (d) 2
    8·2 answers
  • 5 whole 1/2 times 2 whole 1/4 =?
    5·1 answer
  • Annora bought a box of cookies that matches the dimensions of the solid below. How many square units of cardboard were used to c
    7·1 answer
  • If f(x) = 3x + 7, find:<br> f(3) = [?]
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!