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3 years ago

Translate: Twice the sum of a number and 3 is equal to five less than the number.

Mathematics

1 answer:

IRINA_888 [86]3 years ago

4 0

Answer:

Twice the sum of a number and three means that the number and three are in parentheses.

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Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point. x = t, y

DochEvi [55]

Answer:

Step-by-step explanation:

At the point (0, 1,0) t = 0

Find the tangent vector:

$\frac{dx}{dt}= 1$

$\frac{dy}{dt}= -4e^{-4t}$

$\frac{dz}{dt}=5-5t^4$

The tangent vector for all points $\vec v(t)$ is

$\vec v(t) = \hat {i}-4e^{-4t}\hat{j}+(5-5t^4)\hat{k}$

$\rightarrow \vec v (0)= \hat{i}-4\hat{j}$

The vector equation of the tangent line is

$(x,y,z) = (0,1,0)+s(\hat{i}-4\hat{j})$

The parametric equation for this line are

$x= s$

$y=1-4s$

$z=0$

7 0

4 years ago

Last Thursday was costume day at Wayne's school. 20 out of the 100 students at the school wore a costume. What percentage of the

Paraphin [41]

Answer:

20 percent or 2/10

Step-by-step explanation:

to make into a percentage it would be easy because of it being out of 100 so make the 100 a percentage and then see how much the 20 would be it would be the same 20/100 only in percentage form so 20 percent

8 0

3 years ago

Solve. Show work please. Passing through (-3,-1) and (2,4)

melisa1 [442]

Slope formula: (y² - y¹) / (x² - x¹)

(-3, -1) (2, 4)

x¹ = -3

x² = 2

y¹ = -1

y² = 4

4 - (-1) = 5

2 - (-3) = 5

5/5 = 1

So the slope is 1.

Hope this Helps!!

6 0

3 years ago

Have an amazing day :) <br><br> Will give brainlst

Alexxx [7]

X= 8.29 or 8.3
you have to use the pythagorean theorem (a^2 +b^2=c^2) remember c is the hypotenuse and the hypotenuse is always across from your triangles right angle

4 0

3 years ago

Kanya is comparing the rate for shipping and handling for two online shopping websites. For the item she has selected, Big Barga

kari74 [83]

Answer:

D. Discount Deals Depot; $15.20

Why?
Lets do Big Bargain Bonanza first.
$8.00 would stay the same as it is for handling. The only number that would change is $1.25, it uses the the words PER pound for shipping.

Your equation would look like this with p being how many pounds Kanya is shipping:
$8.00+$1.25p

Now we just plug in the numbers.
$8.00+$1.25(6)=
$8.00+$7.50=
$15.50

The same games for Discount Deals Depot.
$9.50+$0.95(6)=
$9.50+$5.70=
$15.20

So in conclusion Discount Deals Depot; $15.20 is cheaper than Big Bargain Bonanza;$15.50

6 0

2 years ago