All categories

2 years ago

Please help!!

Mathematics

1 answer:

meriva2 years ago

4 0

Answer:

Step-by-step explanation:

lolol

You might be interested in

What are the solution(s) for the quadratic equation?<br><br> Y=5x^2-9x+4<br><br> Show work

kakasveta [241]

Let's see

$\\ \rm\rightarrowtail 5x^2-9x+4=0$

$\\ \rm\rightarrowtail 5x^2-5x-4x+4=0$

$\\ \rm\rightarrowtail 5x(x-1)-4(x-1)=0$

$\\ \rm\rightarrowtail (5x-4)(x-1)=0$

$\\ \rm\rightarrowtail x=4/5,1$

8 0

2 years ago

If x varies inversley as y and x=4 when y =8, find x when y=1

nikitadnepr [17]

Answer:

x = 32

Step-by-step explanation:

If x and y vary inversely, then xy = k where k is the constant of proportion

4(8) = 32 = k

Now, xy = 32

1(x) = 32

x = 32

4 0

3 years ago

Find the 7th term of the arithmetic sequence 5x + 9, 8x + 5, 11x + 1,...

ohaa [14]

Answer:

Step-by-step explanation:

In arithmetic sequence: a₂ - a₁ = a₃ - a₂ {common difference}

$a_1=5x+9\\a_2=8x+5\\a_3=11x+1\\\\\\d=8x+5-(5x+9)=8x+5-5x-9=3x-4\\\\a_n=a_1+d(n-1)\\\\a_7=5x+9+(3x-4)\cdot6\\\\a_7=5x+9+18x-24\\\\a_7=33x-15$

4 0

3 years ago

Define the value of the expression 3^2 x 3^{-5}

Tanya [424]

Answer:

Between 0 and 1

Step-by-step explanation:

The given expresion is

${3}^{2} \times {3}^{ - 5}$

Recall that:

${a}^{m} \times {a}^{n} = {a}^{m + n}$

We apply this property of exponents to get;

${3}^{2} \times {3}^{ - 5} = {3}^{2 + - 5} = {3}^{ - 3}$

We rewrite to obtain a positive index as:

${3}^{2} \times {3}^{ - 5} = \frac{1}{ {3}^{3} } = \frac{1}{27}$

Therefore the value of the expression is between 0 and 1.

8 0

2 years ago

What is the difference between theoretical and probability and experimental probability

mars1129 [50]

Answer: Theoretical- In a perfect world everything is a 50/50 chance and experimental is real world and the probability is not 50/50.

Step-by-step explanation:

5 0

3 years ago