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
Reil [10]
3 years ago
7

Simplify the following. (a) 3(-3 + 5x) - 1 (4 - 4x) (b) 3 squareroot 64 x^15 y^3 -2(-15 e^5 t/30 e^-2 t^-3)^0

Mathematics
1 answer:
Kaylis [27]3 years ago
6 0

Answer:

a. 19x-13   b. 2(32x^{15}y^{3}-1).

Step-by-step explanation:

a. 3(-3+5x)-1(4-4x) = -9+15x-4+4x = 15x+4x-9-4 = 19x-13.

b. 64x^{15}y^{3}-2(-15e^{5}\frac{t}{30}e^{-2}t^{-3})^{0}

= 64x^{15}y^{3}-2 = 2(32x^{15}y^{3}-1).

You might be interested in
5x3 + 14x2 + 9x <br> help
Cerrena [4.2K]
<h3>Answer:    x(x+1)(5x+9) </h3>

===================================================

Work Shown:

5x^3 + 14x^2 + 9x

x( 5x^2 + 14x + 9 )

To factor 5x^2 + 14x + 9, we could use the AC method and guess and check our way to getting the correct result.

A better way in my opinion is to solve 5x^2 + 14x + 9 = 0 through the quadratic formula

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(14)\pm\sqrt{(14)^2-4(5)(9)}}{2(5)}\\\\x = \frac{-14\pm\sqrt{16}}{10}\\\\x = \frac{-14\pm4}{10}\\\\x = \frac{-14+4}{10} \ \text{ or } \ x = \frac{-14-4}{10}\\\\x = \frac{-10}{10} \ \text{ or } \ x = \frac{-18}{10}\\\\x = -1 \ \text{ or } \ x = \frac{-9}{5}\\\\

Then use those two solutions to find the factorization

x = -1  or  x = -9/5

x+1 = 0  or  5x = -9

x+1 = 0  or  5x+9 = 0

(x+1)(5x+9) = 0

So we have shown that 5x^2 + 14x + 9 factors to (x+1)(5x+9)

-----------

Overall,

5x^3 + 14x^2 + 9x

factors to

x(x+1)(5x+9)

6 0
3 years ago
72 is 40% of what number
matrenka [14]
40/100=0.4 and 72/0.4=180
so the answer is 180
6 0
3 years ago
Read 2 more answers
Witch of the following tables represents a proportional relationships?
Over [174]

Answer:

C

Step-by-step explanation:

The relationship is y = 3x

4 0
2 years ago
Read 2 more answers
How many bags of rice weigh at least 1<br> 2 <br> Pound?
Roman55 [17]
The answer depends on the weight of each individual bag. Do you know exactly how heavy each of the bags are? Please be more clear in your question.
3 0
3 years ago
Question 51 ptsThe point (-4,-2) lies on a circle. What is the length of the radius of this circle if thecenter is located at (-
forsale [732]

Given,

The coordinates of the point on the circle is (-4, -2).

The coordinates of the center of the circle is (-8, -10).

Reuired

The length of the center of the circle.

By using the distance formula, the radius of the circle can be calculated.

The distance formula is,

Distance=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}

Substituting the value of the coordinates of the points,

\begin{gathered} Distance=\sqrt{(-10-(-2))^2+(-8-(-4))^2} \\ =\sqrt{(-10+2)^2+(-8+4)^2} \\ =\sqrt{(-8)^2+(-4)^2} \\ =\sqrt{64+16} \\ =\sqrt{80} \\ =\sqrt{4\times4\times5} \\ =4\sqrt[]{5} \end{gathered}

Hence,

3 0
1 year ago
Other questions:
  • A group of eight grade 11 and five grade 12 students wish to be on the senior prom committee. The committee will consist of thre
    8·1 answer
  • An angle is a right angle if and only if it measures 90
    8·2 answers
  • Describe a situation that can be modeled by the expression x-8
    12·1 answer
  • At a bargain store, Tanya bought three items that each cost the same amount. Tony bought four items that each cost the same amou
    7·1 answer
  • Valerie is ordering salads and drinks for her friends. Salads cost $7 each, drinks cost $3 each, and there is a $5 delivery char
    6·2 answers
  • 2.) Solve 48 = -6<br>4.) Solve 4 + 3.5 = 12.5​
    7·1 answer
  • Neal has worked 4 hours less than normal for each of the last 2 days. If he's worked a total of 12 hours for both days, how many
    5·1 answer
  • Four Friends decided to host the grand opening of their bar on St. Patrick’s Day. They built their bars at different distances f
    12·1 answer
  • What expression is equivalent to -15x + 39? *
    6·1 answer
  • Which compound inequality can be represented by the graph below?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!