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
DENIUS [597]
3 years ago
14

Which expression is equivalent to (3x squared -7) The answer is (10x squared -4) - (7x squared +3)

Mathematics
1 answer:
WITCHER [35]3 years ago
3 0

Answer:

(10x squared -4) - (7x squared +3)

You might be interested in
Element X is a radioactive isotope such that every 5 years, its mass decreases by half.
Verdich [7]

Answer: 24 grams of element would remain.

Step-by-step explanation:

Exponential function for decay:

f(x)=Ab^{\frac{x}{n}} ....(i) , where A = initial value , b = decay factor, x = time , n= time per period

As per given,

A = 569 grams , b=\dfrac12

n= 5 years, t = 23 years

Put all values in (i) , we get

f(23)=590(\dfrac12)^{\frac{23}{5}}\\\\\\=590\times 0.0412346222117\\\\=24.3284271049\approx 24

Hence, after 23 years , 24 grams of element would remain.

6 0
3 years ago
Which of the following equations have no solution? Select all that apply.
Ivanshal [37]

Answer:

B) -|x + 3| = 3

D) |x + 3| + 6 = 3

Step-by-step explanation:

A) |x + 3| = 3

B) -|x + 3| = 3

Divide by -1

|x + 3| = -3

Absolute values are 0 or positive so this cannot have a solution

C) |x + 3| + 3 = 3

Subtract 3 from each side

|x + 3| + 3-3 = 3-3

|x + 3| = 0

D) |x + 3| + 6 = 3

Subtract 6 from each side

|x + 3|  = -3

Absolute values are 0 or positive so this cannot have a solution

7 0
3 years ago
Please solve the proof
Alenkinab [10]

Answer:

\pi \pi \neq x^{2}

\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]\lim_{n \to \infty} a_n

7 0
4 years ago
Help please
Leni [432]
So they need $125 to start a slime business.
To get money Carrie start to sell cupcakes for 0.50 cents

Juanita will be selling cards for $2.25

Juanita is selling cards for $2.25 and she is selling at least 35 of them

Carrie is selling cupcakes for 0.50 cents and the number of cupvakes is three times the number of cards so we will multiply 35 x 3=105 number of cupcakes

Then we will multiply 0.50 cents x 105= $53.2 on the cupcakes.

After that, we will multiply $2.25 x 35 for the cards = 78.5

Finally add them together
78.5
+53.3
---------
$ 131.8

So they will have $131.8 after selling cupcakes and cards.
7 0
3 years ago
I NEED HELP PLEASE, THANKS! :)
Monica [59]

Hey there! :)

Answer:

1124.8 J.

Step-by-step explanation:

Given:

Distance: 25 meters.

Force: 70 N.

Direction: 50° with the horizontal.

Start by calculating the magnitude of the vector:

cos (50) = |x| / 70

70 · cos (50) = |x|

Solve:

44.99 ≈ |x|

This is the magnitude. To calculate the amount of work done, simply multiply by the distance she pushed the wheelbarrow:

44.99 × 25 ≈ 1124.8 J.

3 0
3 years ago
Other questions:
  • Ms.Franks drives a maximum of 150 miles per week to and from work. She works 5 days per week. Write an inequality that shows m t
    6·1 answer
  • At eagle bay, it cost $12 per hour to rent a canoe. Nate and his friends rented a canoe for 4 hours and paid $68. Write and solv
    5·1 answer
  • How do I find mixed numbers!?
    15·2 answers
  • In a small town, there are 4 times as many left-handed males as there are left-handed females, and there are 3 times as many rig
    5·1 answer
  • Find the length of side x in simplest radical form with a rational denominator.<br> 45°<br> X<br> V6
    11·1 answer
  • Write the next 2 terms of the Fibonacci sequence starting with 2, 6, ....
    5·2 answers
  • The track of a roller coaster is 1.265 miles long. The ride lasts for 2.3 minutes. What is the average speed of the roller coast
    15·2 answers
  • I need help please !
    14·1 answer
  • So i don’t really like using my brain right now but if someone could help me that would be awesome :-)
    15·1 answer
  • 1 ACTIVITY: Estimating a Part
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!