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2 years ago

Does anybody know the answer to this

Mathematics

2 answers:

kvv77 [185]2 years ago

6 0

substitute 3 in X's place

-2x + 5 = -2(3) + 5 = -6 + 5 = -1

hope it helps...!!!

maxonik [38]2 years ago

5 0

So x is 3 so substitute all the x values in the problem for 3

So it’ll look like this:
F(3)= -2(3) + 5

Then you’ll solve which would be:

F(3)= -6 + 5

Answer is -1

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What is the coefficient of x^4y^4 in the expansion (x+y)^8?

Ivanshal [37]

Answer:

C. 70

Step-by-step explanation:

In the expansion of (a + b)^n, the k-th term is ...

nCk·a^(n-k)b^k . . . . . k = 0 to n; nCk = n!/(k!(n-k)!)

Here, we have n=8, k=4, so the term of interest is ...

8C4·x^4y^4 = (8·7·6·5)/(4·3·2·1)x^4y^4 = 70x^4y^4

The coefficient of the term is 70.

3 0

3 years ago

YOUR TURN

Karolina [17]

Answer:

The equation is: y = 15·x

Step-by-step explanation:

It is provided that at the Speedy Bike Works, 15 bicycles are produced each hour.

Consider the table below.

Number of Hours: 1 3 6 10

Number of Bicycles Produced: 15 45 90 150

Compute the ratio of number of bicycles produced and number of hours for every data above as follows:

$\text{1 hour}=\frac{15}{1}=15:1\\\\\text{3 hour}=\frac{45}{3}=\frac{15}{1}=15:1\\\\\text{6 hour}=\frac{90}{6}=\frac{15}{1}=15:1\\\\\text{10 hour}=\frac{150}{10}=\frac{15}{1}=15:1$

The ratio of the number of bicycles produced and number of hours is same for every data value.

Thus, the relationship between the number of bicycles produced and number of hours is proportional.

The equation for the relationship is:

y = 15·x

y = number of bicycles produced

x = number of hours

4 0

4 years ago

Can someone please help me with these will give brainliest

rodikova [14]

1. multiply 1.6 by 2, resulting in 3.2
2. p < 4
Hope this helps!!

3 0

3 years ago

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3 years ago

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neonofarm [45]

Answer:

-1

Step-by-step explanation:

Has to be the opposite

4 0

3 years ago

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