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3 years ago

Which are equivalent to 3^2 x 3^4? check all that apply.

Mathematics

1 answer:

Gemiola [76]3 years ago

4 0

Equivalent to what 729 is the answer

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If one bag of grass seed will cover 225 square feet, what is the minimum number of bags the haney family will need to cover thei

Veronika [31]

Answer:

9 bags

Step-by-step explanation:

First we will need to calculate the area of their entire backyard, which has a shape of trapezium.

So the formula for the area of a trapezium is $A=\frac{(a+b)*h}{2}$

a and b are the lenghts of the parallel sides and h is the height.

From the picture $a=10*5=50\\b=9*5=45\\h=8*5=40$

Then we plug into our formula

$A=\frac{(a+b)*h}{2} =\frac{(50+45)*40}{2} = 1200$ square feet

To get the number of bags required we just simply divide the aree of their entire yard by the space that 1 bag covers. We get:

$\frac{1900}{225} =8.444...$ bags

This is more than 8 bags so they will need 9 bags to cover their entire yard.

8 0

3 years ago

Carson receives a weekly allowance for completing all of his chores. The current amount Carson receives

dsp73

Answer yes it is

Theroy cause

3 0

3 years ago

Identify the slope, y-intercept, write the equation and zero of the line on the graph.

Oxana [17]

Answer:

0,-4 is the y-intercept and y2+x is the equation I think

Step-by-step explanation:

7 0

3 years ago

Which pair of numbers is relatively prime

VladimirAG [237]

D 273 and 333 hope this helps

4 0

3 years ago

Read 2 more answers

How do you find the amplitude, period, and shift for f(x)=−4cos(3x−π)+1?

Orlov [11]

Answer:

(a) Amplitude = 4

(b) $T = \frac{2\pi}{3}$ --- Period

(c)

$C = \frac{\pi}{3}$ --- phase shift

$D =1$ --- vertical shift

Step-by-step explanation:

Given

$f(x) = -4\cos(3x - \pi) + 1$

Rewrite the function as:

$f(x) = -4\cos(3(x - \frac{\pi}{3}) + 1$

Solving (a): The amplitude

A cosine function is represented as:

$f(x) = A\cos[B(x - C)] + D$

Where:

$|A| \to Amplitude$

So, in this equation (by comparison):

$|A| = |-4|$

$|A| = 4$

<em>The amplitude is 4</em>

Solving (b): The period (T)

This is calculated as:

$T = \frac{2\pi}{B}$

By comparison:

$B =3$

So:

$T = \frac{2\pi}{3}$

Solving (c): The shift

The phase shift is C

The vertical shift is D

By comparison:

$C = \frac{\pi}{3}$ --- phase shift

$D =1$ --- vertical shift

3 0

3 years ago