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
Galina-37 [17]
4 years ago
15

Simplify –6(5x + 1) + 3(2x – 4).

Mathematics
2 answers:
Aleksandr [31]4 years ago
5 0
Multiply the coefficients to the terms in parentheses:

-6(5x + 1) = (-6 * 5x) + (-6 * 1) = -30x - 6

3(2x - 4) = (3 * 2x) + (3 * -4) = 6x - 12

(-30x - 6) + (6x - 12)

Combine like terms:

-30x + 6x = -24x

-6 + -12 = -18

-24x - 18

The answer is C. -24x - 18.

kondaur [170]4 years ago
4 0
I believe the answer is A
You might be interested in
Use the Law of Cosines to find the values of x and y. (PLEASE HELPPP!!!!)
vredina [299]

Answer:

x = 49.8^\circ\\y = 54.6^\circ

Step-by-step explanation:

Kindly refer to the image attached in the answer region for labeling of triangle.

<em>AB </em><em>= 16 </em>

<em>BC </em><em>= 19</em>

<em>AC </em><em>= 15 </em>

\angle ABC = x^\circ\\\angle ACB = y^\circ

We have to find the <em>angles </em><em>x</em> and <em>y</em> i.e. \angle B \text{ and }\angle C.

Formula for <em>cosine rule</em>:

cos B = \dfrac{a^{2}+c^{2}-b^{2}}{2ac}

Where  

<em>a</em> is the side opposite to \angle A,

<em>b</em> is the side opposite to \angle B  and

<em>c</em> is the side opposite to \angle C.

\Rightarrow cos x = \dfrac{19^{2}+16^{2}-15^{2}}{2 \times 19 \times 16}\\\Rightarrow cos x = \dfrac{392}{608} \\\Rightarrow x = 49.8^\circ

Similarly, for finding the value of <em>y:</em>

cos C = \dfrac{a^{2}+b^{2}-c^{2}}{2ab}\\\Rightarrow cos y = \dfrac{19^{2}+15^{2}-16^{2}}{2  \times 19 \times 15}\\\Rightarrow cos y = \dfrac{330}{570}\\\Rightarrow y = 54.6^\circ

Hence, the values are:

x = 49.8^\circ\\y = 54.6^\circ

7 0
3 years ago
PLEASE ITS NOT THAT HARD
nevsk [136]

Answer:

25.   0.0036    26.    1/64

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Alenkasestr [34]
What’s the question?
6 0
3 years ago
The angle of elevation to the sun is 24°. What is the length of the shadow cast by a person 1.82 m tall? A. 0.81 m B. 1.99 m C.
Zanzabum

Answer:

C. 4.09 m

Step-by-step explanation:

Let the length of the shadow cast by a person be x m.

\tan \: 24 \degree =  \frac{height \: of \: person}{length \: of \: the \: shadow}  \\  \\ 0.4452286853 =  \frac{1.82}{x}  \\  \\ x =  \frac{1.82}{0.4452286853}  \\  \\ x = 4.08778693 \: m \\ x = 4.09 \: m

7 0
3 years ago
What is the prime fractorization of 84
Anvisha [2.4K]
84/2 = 42
42/2 = 21
21/3 = 7
7/7 = 1

84 = 2^2 * 3 * 7
8 0
3 years ago
Read 2 more answers
Other questions:
  • There are three times as many cats in the animal shelter as puppies. There are twelve times as many fish as there are puppies. I
    10·1 answer
  • What is 50 times 2 divided by 100?
    12·2 answers
  • George buy pizza. He eat 3/8 of the pizza for lunch and 1/2 of the pizza for pizza for lunch What fraction of the pizza has Geor
    12·2 answers
  • Answer ASAP please! ✨
    6·1 answer
  • In a survey, 9 out of 15 people named math as their favorite class. Express the rate as a decimal.
    8·1 answer
  • Please i need help over here
    14·1 answer
  • Plz help will mark brainliest!
    8·1 answer
  • Please help i need help with this
    15·1 answer
  • This graph shows the changing unemployment rate in the United States. Based on this graph, what can be concluded about the econo
    10·2 answers
  • How do you write – 6 5/9 as a decimal?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!