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
zheka24 [161]
3 years ago
15

What is the value of 21 + 6² - (35 - 8) ×3? A. 90 B. 0 C. -24 D. -54

Mathematics
2 answers:
zalisa [80]3 years ago
7 0

Answer:

C. -24

Step-by-step explanation:

Hello!

To solve this we have to follow the order of PEMDAS

Parenthesis, exponents, multiplication and division, addition and subtraction

21 + 6^{2} - (35 - 8) * 3

Parenthesis first

21 + 6^{2} - (27) * 3

Exponents next

21 + 36 - 27 * 3

Multiplication and division from left to right

21 + 36 - 81

Addition and subtraction from left to right

57 - 81 = -24

The answer is C.-24

Hope this helps!

Oksana_A [137]3 years ago
4 0

Answer:

<h2>C. -24</h2>

Step-by-step explanation:

21+6^2-\left(35-8\right)\times \:3\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(35-8\right)\::\quad 27\\\\=21+6^2-27\times \:3\\\\\mathrm{Calculate\:exponents}\:6^2\::\quad 36\\\\=21+36-27\times \:3\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:27\times \:3\::\quad 81\\\\=21+36-81\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:21+36-81\::\quad -24\\\\=-24

You might be interested in
Find the measure of \angle G∠G. Round your answer to the nearest tenth (one decimal place).
Law Incorporation [45]

Hi there!

\large\boxed{G \approx 55.44^{o}}

To solve, we can use right triangle trigonometry.

Recall that:

sin = O/H, cos = A/H, tan = O/A.

For angle G, HF is its OPPOSITE side, and FG is the hypotenuse.

Therefore, we must use sine to evaluate:

sinG = 14 / 17

sin⁻¹ (14/17) = ∠G. Evaluate using a calculator.

∠G ≈ 55.44°

6 0
3 years ago
What s is y= x+ 5 I need to knoww for math
IrinaK [193]
If you’re looking for the y-intercept: y=5
If you’re looking for the x-intercept: x=-5
4 0
3 years ago
Which of the following would represent the first step in simplifying the problem 7+56(6-2) divided by 2
Gennadij [26K]

Answer:

Think about PEMDAS, Whatever is in parentheses you solve that first. (6-2) which will be 4, you'll do 7+65*4 and find your answer. And divide by 2 at the end.

Hope this help

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Question 5
Semenov [28]

Answer:

NEITHER OF THEM IS THE ANSWER

6 0
3 years ago
Evaluate the expression on top
katovenus [111]

Apply PEMDAS.

10^2 + (8)^2 - 5

100 + 16 - 5

116 - 5

Answer: 111

3 0
3 years ago
Read 2 more answers
Other questions:
  • The question says which statement correctly identifies the line of reflection plzzzzz help me
    11·2 answers
  • - 3x + 2y = -6<br> x + 7y = 2
    10·1 answer
  • 8 A triangle in Quadrant II is going to be reflected
    15·2 answers
  • Yolanda spends 8/23 hours per month playing soccer. Approximately how many hours does she play soccer in a year
    13·2 answers
  • the dress store is having a sale where all merchandise is 1/4 off a women buy 48 of merchandise at the sale
    10·1 answer
  • 7x+5y=-13<br> -2x=7y+26<br> Solve by elimination
    5·2 answers
  • 2. Jill works for Fast Food Inc. and earns $332 per week and is paid bi-weekly. How much is deducted
    9·1 answer
  • Hellp pls this is not a quiz
    13·1 answer
  • Guess the car<br> Hint**uncommon**
    15·2 answers
  • Find the difference: -4- (-3) =
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!