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
Zigmanuir [339]
3 years ago
6

Which problem could be solved by evaluating the expression 7 x (-3)?​

Mathematics
2 answers:
Tasya [4]3 years ago
6 0

Answer:

The answer is -21

Step-by-step explanation:

To find the answer just multiply 7 by 3 and that's 21, so just add a negative sign to 21 and you get -21. I hope this helps :) please give me brainliest :)

NNADVOKAT [17]3 years ago
5 0

Answer:

C: A cold front comes in and causes the temperature to drop 3 degrees every hour. What is the change in temperature after 7 hours?

You might be interested in
Find each value if f(x) = 2x - 1 and g(x) = 2 - x2.
bixtya [17]
Well i don’t know i just need me pints but sorry i’m so sorry
3 0
3 years ago
Question 3
Crank

Step-by-step explanation:

Given that,

The mass of a patient = 70 kg

A 70kg patient has approximately 8 pints of blood.

The patient donates 470mL of blood.

We know that,

1 pint = 568 mL

8 pints = 4544 mL

Required fraction,

\dfrac{470}{4544}=0.1\\\\=\dfrac{1}{10}

So, the required fraction is approximately \dfrac{1}{10}.

4 0
3 years ago
Angle A=6x-35^ angle B=3x+53^ B Solve for and then find the measure of angle A :
stealth61 [152]

Answer:

22

Step-by-step explanation:

7 0
3 years ago
How to solve this :') please help
blsea [12.9K]

Answer:

3/2

Step-by-step explanation:

sin(3π/4 - β) = sin(3π/4)cosβ - cos(3π/4)sinπ =

\sin(\frac{3\pi}{4}-\beta)=\sin(\frac{3\pi}{4})\cos\beta-\cos\frac{3\pi}{4}\sin\beta\\=\frac{1}{\sqrt{2}}\cos\beta-(-\frac{1}{\sqrt{2}})\sin\beta\\\\=\frac{1}{\sqrt{2}}(\cos\beta +\sin\beta)\\\\\sin^2(\frac{3\pi}{4}-\beta)=\frac{1}{2}\cos\beta +\sin\beta)^2=\frac{1}{2}(\cos^2\beta +\sin^2\beta+2\sin\beta\cos\beta\\=\frac{1}{2}(1+\sin2\beta)=\frac{1}{2}(1-\frac{1}{5}) = \frac{2}{5}\\

Use \cot^2x=\csc^2x-1=\frac{1}{\sin^2x}-1

so

\cot^2(\frac{3\pi}{4}-\beta)=\frac{1}{\sin^2(\frac{3\pi}{4}-\beta)}-1 = \frac{1}{\frac{2}{5}}-1=\frac{5}{2}-1=\frac{3}{2}

7 0
2 years ago
Y³+3x²y+3xy²+y³-3x²y what is the answer
bazaltina [42]
y^{2}  (2y + 3x) 
7 0
4 years ago
Other questions:
  • If MNO = PQR, which of the following can you conclude as being true?
    11·2 answers
  • Mario and Luigi were selling coupon books for the Video game club fundraiser. Apparently, Mario is a much better salesperson, be
    6·1 answer
  • What line has slope of 5/8 and goes through the point (2,-3)
    10·1 answer
  • PLEASE HELP ME! I NEED ANSWER ASAP!!!
    8·1 answer
  • Two students raced their model cars down a track. The first car traveled
    7·1 answer
  • The slope of a line perpendicular to the line whose equation is y = 3x - 4 is
    13·1 answer
  • A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.
    5·1 answer
  • What number would represent 56 feet below sea level?
    10·2 answers
  • If the number 8.2×109 is written in standard notation, it is the number 82 followed by how many zeros?
    11·1 answer
  • PLease help <br> The segments shown below could form a triangle True or false ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!