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
IrinaK [193]
3 years ago
8

Evaluate 9(4x – 15) if x = 3.

Mathematics
2 answers:
Sindrei [870]3 years ago
7 0

\implies {\blue {\boxed {\boxed {\purple {\sf {-27}}}}}}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

\: 9 \: (4x - 15)

Plugging in the value x = 3 in the above expression, we have

➼ \: 9 \: (4 \times 3 - 15)

➼ \: 9 \: (12 - 15)

➼ \: 9 \: ( - 3)

➼ \:  - 27

<h3><u>Note</u>:-</h3>

\sf\pink{PEMDAS\: rule.}

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

4vir4ik [10]3 years ago
5 0

Answer:

-27

Step-by-step explanation:

9(4x – 15)

Substitute 3 for x

9((4)(3) - 15)

Multiply (4)(3) = 12

9 ( 12 - 15 )

Subtract 12 - 15 = -3

9(-3)

Multiply 9(-3) = -27

You might be interested in
Consider this quadratic equation. 2x2 − 1 = 3x + 4 Which equation correctly applies the quadratic formula?
Mariulka [41]

Answer:

\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)}

Step-by-step explanation:

Quadratic formula: \frac{-b+-\sqrt{b^2-4ac} }{2a}

2x^2-1=3x+4\\\\2x^2-3x-5=0\\\\\\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)} \\\frac{3+-\sqrt{9+40} }{4}

x = \frac{3+-7}{4}

Hope this helps and God bless!

6 0
2 years ago
Please help me on this thank you so much
konstantin123 [22]
The answe is 32 over x
7 0
3 years ago
A photo booth in the shape of a rectangular prism has edge lengths of 3 ft by 4 ft by 7 ft. What is the volume of the space insi
serious [3.7K]

Answer:

V=84ft³

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A rectangular prism has a length of 17 inches, a height of 15 inches, and a width of 17 inches. What is its volume, in cubic inc
frez [133]

The volume of a rectangle prism is V=whl where w is the width, h is the height, and l is the length. In this case, V=17*15*17, or 4335 cubic inches.

5 0
2 years ago
A line passes through the points (0, 2) and (1, 6). What is its equation in slope-intercept form?
olchik [2.2K]

Answer:

y=4x+2

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(6-2)/(1-0)

m=4/1

m=4

y-y1=m(x-x1)

y-2=4(x-0)

y-2=4x

y=4x+2

4 0
3 years ago
Other questions:
  • Pls help me I’m timed
    12·1 answer
  • Solve for x: x5 + x4 − 7x3 − 7x2 − 144x − 144 = 0
    10·2 answers
  • M-n÷4<br><img src="https://tex.z-dn.net/?f=m%20-%20n%20%5Cdiv4" id="TexFormula1" title="m - n \div4" alt="m - n \div4" align="ab
    12·1 answer
  • Help me :( it's algebra and I am so confused. (explanation would be nice)
    6·2 answers
  • 30 POINTS!!!!
    13·2 answers
  • A video uploaded had 18 up votes. If the ratio of up votes to down votes was 9:2, how many down votes did the video get?
    6·1 answer
  • Which of the following values of x will make the equation 3(x – 2) – 1 = 2 – 5(x + 5) TRUE?
    8·2 answers
  • A Cylinder has a radius of 10 feet and a height of 11.4 feet what is the approximate volume of the cylinder?
    15·2 answers
  • A=1/2bh solve for b then h
    6·2 answers
  • Use the function y = 200 tan x on the interval 0 &lt; x &lt; 141. Complete the ordered pair (xº, 0). Round your answer to the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!