1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nimfa-mama [501]
3 years ago
5

–5(1 - 5x) +5(-8x - 2) = -4x - 8x​

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0
-5(1 - 5x) + 5(-8x - 2) = -4x - 8x
-5 + 25x - 40x - 10 = -4x - 8x
-15 - 15x = -12x
-3x = 15
x = -5
You might be interested in
There is 2 questions and I would like time to answer both of them! Please and thank you!
morpeh [17]
#1 is b and #2 is also b ,, i think..so sorry if i’m wrong!
4 0
3 years ago
Read 2 more answers
A rectangle has an area of x square units. The rectangle is dilated to create a new rectangle with an area of 9x square units. D
Alika [10]
The reactangle has an area of x.

So that means two numbers multiplied to each other equal to x. We can just think of itwo numbers that when multiplied equal to x as a and b. 

So that means the side lengths are <u />a and b. And ab = x (will be using this right next).

And it was multiplied by some scale factor that made the new area 9x. So if the scale factor is y, then:

(y\times a)\times (y\times b)=9x
y^2ab=9x
y^2x=9x
y=3

y can not equal to -3, because the length of a side of any polygon can never be negative.

So the dilation is 3.

And so if the dimension is 5 by 8.

Then the area is 5 \times 8=40

And so then x=40

And then after the dilation, it would be 9x=9(40) = 360

We could check it another way too. Since we said the scale factor is 3, then:

( 5 \times 3) \times (8 \times 3) = 15 \times 24 = 360

So basically 15 by 24 is the new dimensions :)

6 0
3 years ago
Davina is comparing cell phone plans. The first plan has a flat fee of $10 plus .04 per text. The second has a flat fee of $5 pl
bazaltina [42]
10+.04(15)(.5)=10.30. 5+.12(15)(.5)=5.9. 10.3-5.9=4.4 the difference is 4.40 :)
8 0
3 years ago
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
3 years ago
(Pls help asap)
ale4655 [162]

D. x>1 or x<7

all the others don't fit

6 0
3 years ago
Other questions:
  • 2. The temperature of the ocean at Huntington Beach can vary up to 8.6°F from the
    14·1 answer
  • Ivanna deposits $600 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in t
    11·1 answer
  • Help!! A, B, C, or D
    11·1 answer
  • Can someone help PLS
    5·2 answers
  • A caterer charges a $65 equipment fee to set up for a party and $9.50 per p person for food served at the party. Which of the fu
    10·1 answer
  • Toillet paper is sold in cases for 36 rolls for $14.99 what is the per price per roll?
    14·1 answer
  • How do you solve |2x-5|=4.
    5·1 answer
  • What is 12 2/3 as an improper fraction
    11·1 answer
  • If u have 3 pennies 4 nickles and 5 dimes what ratio is nickles to the total number
    6·1 answer
  • a map that created using a scale of 1 inch equals 3 miles shows a lake with an area of 18 square inches was a actual area of the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!