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3 years ago

Which is the graph of y = [x]-2? PLEASE HELP TIMED PLEASE 20points

Mathematics

2 answers:

IrinaK [193]3 years ago

7 0

Answer:

3rd graph

Step-by-step explanation:

Bogdan [553]3 years ago

6 0

Answer:

it depends on the equation thats given

Step-by-step explanation:

you put the value of x in the brackets and then solve it so that u get the coordinates of y, then u can put the point on whichever values u get for x and y and continue like that until you get all the points (you can join them if the question asks)

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Which of the algebraic expressions are not linear expressions? Select all that apply. a. 3x - 2 b. -9y c. -7x^2^ + 4x d. -1/2x^2

Sedaia [141]

Answer:

c, d and e

Step-by-step explanation:

A linear expression is an expression in which sum of exponents of variables is at most 1 in each of its terms.

Option a: $3x - 2$

Here, the exponent of the variable is 1.

So, it is a linear expression.

Option b: $-9y$

Here, the exponent of the variable is 1.

So, it is a linear expression.

Option c: $-7x^2 + 4x$

Here, the highest exponent of the variable is 2.

So, it is NOT a linear expression.

Option d: $-\frac{1}{2} x^2$

Here, the exponent of the variable is 2.

So, it is NOT a linear expression.

Option e: $8xy$

Here, sum of exponents of variables is 2.

So, it is NOT a linear expression.

Hence, c, d and e are NOT algebraic expressions.

6 0

3 years ago

The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and

lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

$f(x) =-0.3x^2 + 2x$

At a horizontal distance of 4 feet, the value of x is 4

i.e. $x = 4$

Substitute 4 for x in f(x).

So, we have:

$f(4) =-0.3(4)^2 + 2(4)$

Evaluate the exponent

$f(4) =-0.3(16) + 2(4)$

Open both brackets

$f(4) =-4.8 + 8$

Add -4.8 and 8

$f(4) =3.2$

Hence, the hose is 3.2 feet above the ground

Read more about functions at:

brainly.com/question/10837575

7 0

3 years ago

Katelyn says that her biology test scores are much higher than her math test scores. Based on the shape of the data, which expla

Nitella [24]

Pls. see attachment.

3 0

3 years ago

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Find the diameter of a circle with a circumference of 28.26 centimeters .

soldi70 [24.7K]

9cm

Explanation: we have found that the radius is 2.999239 and the formula for circumference of a circle is:

⋅

2.999239

⋅

5.99848

(multiply by 2 to get the diameter)

5.99848

⋅

18.84478

8 0

4 years ago

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A class "S" has a total of 40 students, with the ratio between boys and girls is 3 : 2

Alika [10]

So, if the ratio of girls to boys is 3:2 (imagine this: 3 and 2 groups of equal number, that's 5 groups and then each group will have 40/5=8 people), so there are 3*8=24 boys and 2*8=16 girls.

1 : 3 : 2 : 2
this ratio means dividing the girls into 1+3+2+2=8 groups of 2, so the actual numbers are:
2:6:4:4

4 : 3 : 1 this ratio means dividing the boys into 4+3+1=8 groups of 3, so the actual numbers are:
12:9:1

A.we know the actual numbers: 4 girls and 12 boys, so the ratio is 4:12, or simplifying: 1:3

B: look here: 2:6:4:4

only 2 girls like orchestra

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3 years ago

Read 2 more answers