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
zepelin [54]
2 years ago
5

Hii please help i’ll give brainliest

Mathematics
2 answers:
ivanzaharov [21]2 years ago
6 0
C

1) 2.25
2) 0.35
3) -2.25
4) -0.25
Zepler [3.9K]2 years ago
3 0

Answer:

C- the third one

Step-by-step explanation:

It is the only one that shows the dot on -2

if this helps, brainliest, please?????

You might be interested in
A man bought A $250 suit and four shirts for $398 how much did she spend per shirt
solniwko [45]

Answer: 99.5

Step-by-step explanation:

398 ÷ 4


3 0
3 years ago
Are of shape shown below
Margaret [11]

Step-by-step explanation:

2x2 is 4 4x4 is 16 16x1 is 16

3 0
2 years ago
Help me asap! I will give you marks
Law Incorporation [45]

Recall the binomial theorem.

(a+b)^n = \displaystyle \sum_{k=0}^n \binom nk a^{n-k} b^k

1. The binomial expansion of \left(1+\frac x3\right)^7 is

\left(1 + \dfrac x3\right)^7 = \displaystyle\sum_{k=0}^7 \binom 7k 1^{7-k} \left(\frac x3\right)^k = \sum_{k=0}^7 \binom 7k \frac{x^k}{3^k}

Observe that

k = 1 \implies \dbinom 71 \left(\dfrac x3\right)^1 = \dfrac73 x

k = 2 \implies \dbinom 72 \left(\dfrac x3\right)^2 = \dfrac73 x^2

When we multiply these by 8-9x,

• 8 and \frac73 x^2 combine to make \frac{56}3 x^2

• -9x and \frac73 x combine to make -\frac{63}3 x^2 = -21x^2

and the sum of these terms is

\dfrac{56}3 x^2 - 21x^2 = \boxed{-\dfrac73 x^2}

2. The binomial expansion is

\left(2a - \dfrac b2\right)^8 = \displaystyle \sum_{k=0}^8 \binom 8k (2a)^{8-k} \left(-\frac b2\right)^k = \sum_{k=0}^8 \binom 8k 2^{8-2k} a^{8-k} b^k

We get the a^6b^2 term when k=2 :

k=2 \implies \dbinom 82 2^{8-2\cdot2} a^{8-2} b^2 = 28 \cdot2^4 a^6 b^2 = \boxed{448} \, a^6b^2

6 0
1 year ago
If A and B are independent events, P(A) = 0.25, and P(B) = 0.3, what is P(AB)?
Marrrta [24]

Answer:

P(A) = 0.25, P(B= 0.3

And if we want to find P(A \cap B) we can use this formula from the definition of independent events :

P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075

And the best option would be:

P(A \cap B) =0.075

Step-by-step explanation:

For this case we have the following events A and B and we also have the probabilities for each one given:

P(A) = 0.25, P(B= 0.3

And if we want to find P(A \cap B) we can use this formula from the definition of independent events :

P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075

And the best option would be:

P(A \cap B) =0.075

3 0
2 years ago
If you borrowed $646 at an interest rate of 5% for 6 years, how much interest will you pay? Round to the nearest tenth if necess
Snezhnost [94]

Answer:

P=646

R=5%

T=2yrs

I=?

I=PRT/100

I= 646*5*2/100

I= 64.6

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Help me help me !!!!!
    9·1 answer
  • A utility company’s pump moves 1,008 gallons of water in 8 minutes. What is the unit rate in gallons per minute
    12·2 answers
  • Solve for x in each of the equations or inequalities below, and name the property and/or properties used:
    8·1 answer
  • X+3x-2=6x-12 please help
    9·1 answer
  • By graphing the system of constraints find the values or x and y that maximize the objective function, find the maximum value.
    11·1 answer
  • Find the solution of y=-3x - 1 for x = -5.
    15·2 answers
  • Y=5x+4 and 3x+2y=20 by using elimination​
    8·1 answer
  • Aaron buys 2 t-shirts for $10.50 each, a 3-pack of socks for $7.95, what is the total cost of Aaron’s purchases?
    11·2 answers
  • Question 3
    5·2 answers
  • In triangle ABC, a = 3, b = 5, and c = 7. Find the approximate value of angle A.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!