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3 years ago

I was so confident in this question but I still got it wrong:( help!!

Mathematics

2 answers:

Assoli18 [71]3 years ago

7 0

I think it might be D

VashaNatasha [74]3 years ago

5 0

Answer:

I believe it's a. I've seen you posting a lot of questions I hope you do good on your resubmission.

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If n=4x−3, then what is the value of x when n=11?

crimeas [40]

Answer:

x=7/2

Step-by-step explanation:

11=4x−3

Step 1: Flip the equation.

4x−3=11

Step 2: Add 3 to both sides.

4x−3+3=11+3

4x=14

Step 3: Divide both sides by 4.

4x /4 = 14 /4

x= 7/ 2

5 0

3 years ago

Let f(x) = 3x3 − 7x2 − 9x + 21 and g(x) = 3x − 7. Find f of x over g of x.

Ronch [10]

Answer:

x^2-3

Step-by-step explanation:

look at the picture

8 0

3 years ago

Read 2 more answers

I NEED URGENT ASSISTANCE

Nata [24]

Answer:

8 C sometimes

9 64x^8 y^11

10 c 1.28r^2/ t^9

Step-by-step explanation:

Algebraic Operations

Some basic rules must be fresh in our minds when trying to simplify complex algebraic expressions. For example, the power rule respect to the product or quotient:

$\displaystyle \left(\frac{x^n.y^m}{z^p}\right)^q= \frac{x^{qn}.y^{qm}}{z^{qp}}$

$\displaystyle \frac{x^n.x^q}{x^p}= x^{n+q-p}$

$\displaystyle x^{-n}=\frac{1}{x^n}$

Let's face the questions at hand

8. A number is raised to a negative exponent is negative?

Following the expressions recalled above, let's pick the expression

$\displaystyle 3^{-2}=\frac{1}{3^2}=\frac{1}{9}$

This is a negative power resulting in a positive number

Now we pick

$\displaystyle (-2)^{-3}=\frac{1}{(-2)^3}=-\frac{1}{8}$

This time, the negative power leads to a negative result, so it doesn't matter the sign of exponent to determine the sign of the result

Answer: C sometimes

9 simplify(4xy^2)^3(xy)^5

$(4xy^2)^3(xy)^5=4^3x^3(y^2)^3x^5y^5$

$=64x^3y^6x^5y^5$

$=64x^8y^{11}$

10 simplify(2t^-3)^3(0.4r)^2

$(2t^{-3})^3(0.4r)^2=2^3(t^{-3})^30.4^2r^2$

$=8t^{-9} 0.16 r^2$

$=1.28t^{-9} r^2$

$\displaystyle \frac{1.28 r^2}{t^9}$

7 0

3 years ago

PLEASE ANSWER ASAP!!! Using the given equation find the missing coordinates of the points and then find the slope of the line fo

Andrei [34K]

Answer:

Step-by-step explanation:A.

Slope =

Step-by-step explanation:

We are given the equation of the line as .

A. The co-ordinate is given by

Substituting the value , we get,

implies implies i.e. 3x = -1 i.e.

Thus, the co-ordinate is .

B. The co-ordinate is given by

Substituting the value , we get,

implies implies i.e. 9y = 0 i.e. y= 0

Thus, the co-ordinate is .

Since, the slope of a line is given by .

We get,

Slope = .

i.e. Slope = .

Hence, the slope of the line is .

5 0

3 years ago

A 3.5‘ x 5.5‘ nearest place in a wooden frame what is the area of the frame

Brut [27]

The area of the frame would be 19.25’

8 0

3 years ago