Answer:
A choice.
Step-by-step explanation:
Irrational number is a number that cannot be written in a fraction form. All square roots are classified as an Irrational number unless can be evaluated to Rational number.
From A choice, you cannot evaluate the square root of 7 into any rational number. Therefore, it is an Irrational number.
B choice, even though there is a square root, but you can still evaluate from square root of 4 to 2.
For C and D, both are integers. Integers are classified to be Rational Number. Therefore, C and D both are rational.
Answer:
The answer is below
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. Types of triangles are scalene, right angled, isosceles, equilateral.
A right angled triangle is a triangle with one angle equals to 90°.
Statement Reason
∠PQR = ∠RST Given. ∠PQR = ∠RST = 90° (definition for right
angle triangle.
PQ = ST Given
PR ≅ RT Since R is the midpoint of PT, hence PR = RT
ΔPQR ≅ ΔTSR Side-angle-side triangle congruence theorem.
the Side-angle-side triangle congruence theorem
states that if two sides and an included angle of
one triangle is equal to two sides and an included
angle of another triangle, then the two triangles
are congruent. PQ=ST, PR = RT and ∠PQR = ∠TSR
Answer:
=x^16y^26
Step-by-step explanation:
x^18y^24xy^2
x^16y^24xy^2
The Z-score is calculated by the formula below
![\begin{gathered} z-score=\frac{(x-\mu)}{\sigma}_{} \\ \mu=\operatorname{mean} \\ \sigma=s\tan dard\text{ deviation} \\ x=\text{score} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20z-score%3D%5Cfrac%7B%28x-%5Cmu%29%7D%7B%5Csigma%7D_%7B%7D%20%5C%5C%20%5Cmu%3D%5Coperatorname%7Bmean%7D%20%5C%5C%20%5Csigma%3Ds%5Ctan%20dard%5Ctext%7B%20deviation%7D%20%5C%5C%20x%3D%5Ctext%7Bscore%7D%20%5Cend%7Bgathered%7D)
Step 2: Substitute the given parameters in the formula
![\begin{gathered} z-\text{score}=\frac{145-165}{40} \\ Z=-\frac{20}{40} \\ Z=-\frac{1}{2} \\ Z=-0.5 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20z-%5Ctext%7Bscore%7D%3D%5Cfrac%7B145-165%7D%7B40%7D%20%5C%5C%20Z%3D-%5Cfrac%7B20%7D%7B40%7D%20%5C%5C%20Z%3D-%5Cfrac%7B1%7D%7B2%7D%20%5C%5C%20Z%3D-0.5%20%5Cend%7Bgathered%7D)
Hence, the z-score of a person who scored 145 on the exam is -0.5
Answer:
For this case we have by definition, that an irrational number is a number that can not be expressed as a fraction \ frac {a} {b}, where a and b are integers and b is different from zero.
A) , it is rational
B), it is rational
C) , it is rational
D) it is not rational.
Step-by-step explanation:
dddddd its dddd
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