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3 years ago

-3 is a solution of y > -2 true or false

Mathematics

2 answers:

sweet [91]3 years ago

7 0

The answer is false

BartSMP [9]3 years ago

5 0

That is false. When you look at a number line, -3 is to the left of -2. A number to the left of another number is less than the number to the right.

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(Picture) MULTIPLYING MONOMIALS AND BINOMIALS

motikmotik

Answer:

Second option: 81y^4 - 16x^2, the difference of squares

Step-by-step explanation:

(9y^2-4x)(9y^2+4x) is a special product named difference of squares, then we can apply this formula:

(a-b)(a+b)=a^2-b^2, with a=9y^2 and b=4x, then:

(9y^2-4x)(9y^2+4x)=(9y^2)^2 - (4x)^2

(9y^2-4x)(9y^2+4x)=(9)^2 (y^2)^2 - (4)^2 (x)^2

(9y^2-4x)(9y^2+4x)=81y^(2*2) - 16x^2

(9y^2-4x)(9y^2+4x)=81y^4 - 16x^2

7 0

3 years ago

Frodo ran miles in of an hour. How many miles can Frodo run in one hour?

GaryK [48]

Frodo can run 1 miles in 1 hour

4 0

3 years ago

What is the answer to this maths question? 0.24/0.012=

Igoryamba

0.24/.012 Answer= 20
You just divide the .24 by .012

4 0

3 years ago

Question 6 (1.25 points)

Lisa [10]

Answer:

Test statistic Z= 1.713

The calculated Z- value = 1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

Step-by-step explanation:

Step(i):-

A researcher wants to test if the mean annual salary of all lawyers in a city is

different from $110,000

Mean of the Population μ = $110,000

Sample size 'n' = 53

Mean of the sample x⁻ = $114,000.

standard deviation of the Population = $17,000,

Level of significance = 0.01

Null hypothesis :

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

H₀: x⁻ = μ

Alternative Hypothesis : x⁻ ≠ μ

Step(ii):-

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{114000-110000}{\frac{17000}{\sqrt{53} } }$

Z = 1.7130

Tabulated value Z = 2.576 at 0.01 level of significance

The calculated Z- value = 1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

4 0

3 years ago

A giraffe at the zoo is 5 meters tall. Name something else that is about 5 meters tall.

WITCHER [35]

Answer:

telephone pole

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers