All categories

3 years ago

Find f(3). f(x) = x2 + 5x - 9 The equation y = 2x + 1 is changed to y = 2x - 1.

Mathematics

1 answer:

valina [46]3 years ago

5 0

Answer:

f(x)=15

Step-by-step explanation:

f(x)=x2+5x-9

f(3) means to substitute 3 for x in the equation.

3^2+5(3)-9

9+15-9

f(x)=15

y=mx+b

b is the y intercept, so changing it to -1 would shift the line down 2 units. you

You might be interested in

For a cube whole side lenght is 4 in , the expression 4 to the 3 could represent

S_A_V [24]

Answer:

Step-by-step explanation:

The volume of a cube.

The formula is V = s^3 where is the the "whole side length" of the cube. The cube requires three dimensions be multiplied together to find its volume.

That's why the formula is written as V = s^3. It means that V = s * s * s which is three sides multiplied together. They also need to be at right angles to each other.

4 0

3 years ago

Malcolm took 18 minutes to do 15 math problems. Diedra took 17 minutes to do 16 math problems. Which student did more problems p

boyakko [2]

The student that did more maths problems per minute is Diedra.

In order to determine which student did more maths problems per minute, the rate of each student has to be determined. Rate is the total questions solved divided by the time.

Rate = total questions / total time

Malcolm = 15 / 18 = 0.833 problems per minute

Diedra = 16/ 17 = 0.941 problems per minute

To learn more about rate, please check: brainly.com/question/9834403

3 0

2 years ago

Read 2 more answers

Please help me wit dis no one would help and i really need help

lukranit [14]

(4) 64 tiles, (5) $\mathrm{N}=\mathrm{s}^{2}$ , (6) $N^{2}=S^{4}$

Step-by-step explanation:

Given data: Side length of square tile = 1 ft

(4) Side length of square pool = 8 ft

$\text {Number of tiles} =\frac{\text { Area of square pool }}{\text { area of square tile }}$

$=\frac{8 \times 8}{1 \times 1}$

= 64

Hence 64 tiles needed for the border.

(5) Suppose number of square tiles be N and side of square tub is s ft.

So, N = $\frac{s \times s}{1 \times 1}$

$\Rightarrow N=s^{2}$

So, the expression is $\mathrm{N}=\mathrm{s}^{2}$ .

(6) The equivalent expression is $\mathrm{N}^{2}=\mathrm{S}^{4}$ .

5 0

3 years ago

a = a is an example of which algebraic property (A) Symmetric property (B) transitive property (C) reflexive property (D) commut

Salsk061 [2.6K]

Reflexive property would be the correct answer. It simply means that any value is equal to itself; so a=a would be an example of this property.

~I hoped this helped (if so, give brainliest please!)~

7 0

3 years ago

Read 2 more answers

Point R is located on segment QS. If QR = 10 and RS = 7, what is the measure of QS?

Vadim26 [7]

Answer:

QS = 17 units

Step-by-step explanation:

Given:

R located at QS

QR = 10

RS = 7

Find:

Measure of QS

Computation:

QS = QR + RS

QS = 10 + 7

QS = 17 units

6 0

3 years ago