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Kruka [31]
3 years ago
11

Is 0=(x+4)^2-7 rational or irrational

Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:

Irrational.

Step-by-step explanation:

0=(x+4)^2-7

(x + 4)^2 = 7

Taking square roots:

x + 4  =  ±√7

x = -4 ±√7

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If P and S are rational numbers and R and Q are irrational numbers, which of these statements is true?
Varvara68 [4.7K]

Answer: B. The product of P and S is always a rational number.

Step-by-step explanation: The product AND sum of two rational numbers will ALWAYS be rational.

8 0
3 years ago
If √7 = 2.646, find without using calculator,<br>the value<br>of<br>√0.0007​
Varvara68 [4.7K]

Answer:

√0.0007​ = 0.02646

Step-by-step explanation:

We know that:

√7 = 2.646

We want to find the value of:

√0.0007

Also we know the relations:

\frac{\sqrt{x} }{\sqrt{y} } = \sqrt{\frac{x}{y} }

Then:

\sqrt{0.0007} = \sqrt{\frac{7}{10,000} }

We can rewrite this as:

\sqrt{\frac{7}{10,000} } = \frac{\sqrt{7} }{\sqrt{10,000} }  = \frac{2.646}{100} = 0.02646

4 0
3 years ago
the partial quotient what would be the best choice for the first number to subtract in the division problem 9176 / 31
trasher [3.6K]

Answer:

620

Step-by-step explanation:

3 0
3 years ago
(x) = x + 0.14x, then find the value of T(290).<br> A. 300.45<br> B. 351.2<br> C. 325.8<br> D. 330.6
Katarina [22]

The value of T(290) will be 330.6.The relation between them is shown as T(x)  is dependent and x is the independent variable. Option D s correct.

<h3>What is a function?</h3>

A connection between independent variables and the dependent variable is defined by the function.

Functions help to represent graphs and equations. A function is represented by the two variables one is dependent and another one is an independent function.

Given relation;

T(x) = x +0.14x

Substitute the value of x we get;

T(290) = 290 +0.14×290

T(290) = 330.6

Hence, option D s correct.

To learn more about the function refer to the link; brainly.com/question/12431044.

#SPJ1

6 0
2 years ago
Read 2 more answers
Is (0,3) a solution to the equation y=x+3?
Anna007 [38]
1. To find out if (0,3) is a solution to y = x +3 you replace x and y with (0,3)

y = x + 3
3 = 0 + 3
3 = 3        Correct

The answer is YES


2. To find out if (1,-4) is a solution to y = -2x you replace x and y with (1,-4)

y = -2x
-4 = -2(1)
-4 = -2        Incorrect

The answer is NO

5 0
4 years ago
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