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3 years ago

15

When solving 4x – 3 = 5, the property used in the first step is the ________ property of equality. Question 13 options: A) trans

itive B) division C) substitution D) addition

1 answer:

inn [45]3 years ago

7 0

D) addition property of equality

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A rectangular field is 27 meters long and 18 meters wide. If fencing costs $12 per yard how much will it cost to enclose the fie

KiRa [710]

Find the perimeter of the field:

The dimensions are given in meters.

Perimeter = 27 +27 +18 +18 = 90 meters.

The price is given in price per yards, so now convert meters to yards:

1 meter = 1.09361 yards

90 meters x 1.09361 = 98.4252 yards.

Now multiply total yards by price per yard:

98.4252 x 12 = $1,181.10

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3 years ago

6th grade math help me pleasee

Amiraneli [1.4K]

Answer:

The height above ground level of a rider on a roller coaster over the duration of the ride

Step-by-step explanation:

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3 years ago

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PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME THE STEP BY STEP EXPLANATION!!

Oksanka [162]

mode is the data that occurs most often in a data

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3 years ago

Evaluate the line integral ∫cf⋅dr, where f(x,y,z)=5xi−4yj+3zk and c is given by the vector function r(t)=⟨sint,cost,t⟩, 0≤t≤3π/2

Katena32 [7]

WIth the parameterization

$\mathbf r(t)=\langle\sin t,\cos t,t\rangle$

we end up with

$\mathbf f(\mathbf r(t))=\mathbf f(\sin t,\cos t,t)=5\sin t\,\mathbf i-4\cos t\,\mathbf j+3t\,\mathbf k$

We also have

$\mathrm d\mathbf r=\mathbf r'(t)\,\mathrm dt=\langle\cos t,-\sin t,1\rangle\,\mathrm dt$

So in the line integral, we get

$\displaystyle\int_{\mathcal C}\mathbf f\cdot\mathrm d\mathbf r=\int_{t=0}^{t=3\pi/2}\mathbf f(\mathbf r(t))\cdot\mathbf r'(t)\,\mathrm dt$

$=\displaystyle\int_{t=0}^{t=3\pi/2}(9\sin t\cos t+3t)\,\mathrm dt=\frac98(3\pi^2+4)$

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3 years ago

At a lunch stand, each hamburger has 505050 more calories than each order of fries. if 222 hamburgers and 333 orders of fries ha

UNO [17]

Let hamburger = fries + 50

2hamburger + 3fries = 1700 **Given**
2(fries+50) + 3fries = 1700
2fries + 100 + 3fries = 1700
5fries = 1600
fries = 320
hamburger = 320 + 50
hamburger = 370 cal

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3 years ago