X^2+2x+c find the value of c that completes the square

2 Points Evaluate 5 – (4 + 2)2

Ghella [55]

Answer:

-31

Step-by-step explanation:

5 - (4 + 2)^2 = -31

6 0

4 years ago

Use the formula to evaluate the infinite series. Round to the nearest hundreth if necessary.

zalisa [80]

Answer:

4

Step-by-step explanation:

The first term is the value of the term when n=1. It is 3. The common ratio is is the value being raised to the power of (n-1). It is 1/4. Put these numbers into the formula and do the arithmetic

S = 3/(1 -1/4) = 3/(3/4) = 3·4/3 = 4

The sum is 4.

3 0

4 years ago

Will mark as brainliest :)! Suppose that there were a strong correlation between the variables d and t.

Sonbull [250]

Answer:

c

Step-by-step explanation:

A strong correlations shows evidence of a relationship between the two quantities. It does not necessarily indicate that a change in one variable is causing a change in the other one. There MAY be a causal relationship, but the correlation, by itself, does not prove that.

7 0

3 years ago

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Given sin(-0)=-1/6 and tan0=-√35/35

elena55 [62]

Answer:

Option a. √35/6

Step-by-step explanation:

Given sin θ = -1/6 and tan θ = -√35/35

We should know that :

tan θ = (sin θ)/(cos θ)

∴ Cos θ = (sin θ)/(tan θ)

∴ Cos θ = (-1/6)/(-√35/35) = (-1/6) * (-35/√35)

= 35/(6√35) = (√35 * √35)/(6√35) = √35/6

The answer is option a. √35/6

8 0

4 years ago

Use the following pattern to answer the questions. 24.3, 24, 23.7, 23.4, ___,____. part A. ( what is the rule for the pattern?

vodka [1.7K]

Question 1:

For this case we have the following pattern of numbers:

24.3, 24, 23.7, 23.4

It can be seen that subtracting 0.3 from the first number of the pattern gives $24.3-0.3 = 24\\$

Equally if we subtract 0.3 successively we obtain:

$24-0.3 = 23.7\\\\23.7-0.3 = 23.4\\\\23.4-0.3 = 23.1\\\\23.1-0.3 = 22.8\\$

Thus, 0.3 must be subtracted from each term and the following numbers of the pattern shall be 23.1 and 22.8

Answer:

subtract 0.3 from each term

The next two numbers of the pattern are 23.1 and 22.8

Question 2:

For this case we have the following operation:

$0.52 + 0.61 = 1.13\\\\1.13> 1\\$

We note that the sum is greater than 1

The sum of two hundredth decimals does not necessarily have to be greater than 1.

Therefore, the correct option is: the sum is greater than 1 because the sum shades more than one hundredths grid.

Answer:

Option C

Question 3:

For this case we have to:

$a + b + c = 2\\$

Being a, b, c decimal numbers, one of them was 0.34. Suppose $a = 0.34\\$

Thus: $0.34 + b + c = 2\\$

We choose values for b and c, in order to obtain the number 2 as a result of the sum. We can choose infinite values so that equality is fulfilled

If $b = 0.96$ and

$c = 0.7\\$

we have: $0.34 + 0.96 + 0.7 = 2\\$

Thus, Holland can add to the sum $b = 0.96$ and $c = 0.7\\$

Answer:

$b = 0.96\\\\c = 0.7\\$

Question 4:

For this case we have the following subtraction:

$3.5 - 2.46 = 1.16\\$

This operation is wrong, subtracting $3.5-2.46$ results in 1.04

Let's explain a model for Maysa:

We have the following expression

$3.5 - 2.46\\$

Rewriting each number in expanded form we have:

$(3 + 0.5) - (2 + 0.46)\\$

Using the distributive property we have:

$(3 + 0.5) -2-0.46\\$

Using the associative property we have:

$(3-2) + (0.5-0.46)\\$

Performing each operation:

$1 + 0.04 = 1.04\\$

Anwer:

The subtraction of Maysa is wrong, the correct answer is:

$3.5 - 2.46 = 1.04$

3 0

3 years ago

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