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
ahrayia [7]
2 years ago
6

Plz I need help now plz

Mathematics
2 answers:
Snezhnost [94]2 years ago
7 0

Answer:

Hello!

What is 21 times -7?

Break it down,

21*-7 = 1*-7 + 20*-7 = -7 - 140 = -147

The answer is -147.

Volgvan2 years ago
5 0

Answer:

-147

Step-by-step explanation:

(21) • (-7)

Since it’s a positive times a negative, the answer will be negative

-147

You might be interested in
I need help please and thanks
dimulka [17.4K]

Answer:

10

Step-by-step explanation:

n is the number of selections and k the number selected, that is

n = 5 and k = 2

note that n! = n(n - 1)(n - 2) ..... × 3 × 2 × 1, thus

\frac{5(4)(3)(2)(1)}{2!(5-2)!}

= \frac{120}{2(1)3(2)(1)}

= \frac{120}{2(6)}

= \frac{120}{12}

= 10

5 0
3 years ago
If it is 9'oclock now what time will it be in 16hours time​
Oksi-84 [34.3K]

Answer:

1 AM

Step-by-step explanation:

9AM(start time) to 9PM = 12 hours + the other 4 Hours, 10PM, 11PM, 12PM, 1AM(end time).

7 0
2 years ago
How can I find X and Y in this diagram?
Nastasia [14]

Given the figure of a cyclic quadrilateral

The sum of the opposite angles = 180

so, we can write the following equations:

\begin{gathered} x+100=180\rightarrow(1) \\ 2y+102=180\rightarrow(2) \end{gathered}

we will find (x) from equation (1):

x = 180 - 100 = 80

We will find (y) from equation (2):

2y = 180 - 102

2y = 78

y=78/2 = 39

So, the answer will be:

x = 80

y = 39

7 0
10 months ago
help At 1:00 P.M. the water level of a pool is 13 inches At 1:30 P.M. the water level is 18 inches At 2:30 the water level is 28
mamaluj [8]
The answer is 5 . because if you count the # it will go to 28
7 0
2 years ago
Definition: The ___ tells how fast a line rises or falls between any two points on that line. Algebraically it is expressed as (
liraira [26]
The answer is the slope which is rise over run.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the point L such that JL and KL form a 3:1 ratio.
    14·2 answers
  • Mrs. Varner deposited q dollars in a bank account that has been earning annual interest. The total value of the account is based
    10·2 answers
  • MATH HELP LEASE! WILL GIVE BRAINLIEST!
    11·2 answers
  • What is tanA?<br><br> A. 15/17<br><br> B. 8/17<br><br> C. 8/15<br><br> D. 15/8
    13·2 answers
  • A motorcycle listed for 975$si sold for 820$ .what is the rate of discount that was allowed?​
    10·1 answer
  • If the four lines are extended, which system would have only one solution? On a coordinate plane, lines a and b would intersect.
    14·1 answer
  • Identify the transformation that carries the figure onto itself.
    9·1 answer
  • Find the domain, holes, vertical asymptotes, horizontal asymptotes, oblique/slant asymptotes, x intercepts, and y intercepts
    7·1 answer
  • Use absolute value to express the distance between 8 and -5
    5·1 answer
  • How much is 72 kilograms in pounds
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!