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
Nat2105 [25]
3 years ago
13

Pls help I will give points easy question if it’s wrong I won’t give points

Mathematics
1 answer:
AlladinOne [14]3 years ago
8 0

Answer:

The scale factor is 3

Step-by-step explanation:

7 times 3= 21

5 times 3= 15

9 times 3= 27

Therefore the scale factor is three

You might be interested in
12) -7(-8 + y - 10 – x); use x = -3, and y = 10<br> A) 35<br> B) 40<br> C) 34<br> D) 25
cluponka [151]

Answer:

A

Step-by-step explanation:

56-70+70-21

126-91

35

5 0
4 years ago
the product of two numbers is 7904, and the absolute value of one of the numbers is 247. Find two possible solutions for the oth
Nina [5.8K]

Two Possible solutions for the other number are -32 and 32.

<h3>What are absolute value of a number?</h3>

Absolute value describes the distance from zero that a number is on the number line, without considering direction.

Overall, To find the absolute value of a number :

Let we have any number n ( it can be positive/negative ).

so, Absolute value of 'n' will be | n | (mod of n) , means we have to take positive value of the given number.

For example: | -3 | = 3

| 4 | = 4

| -1000 | = 1000

Now, For absolute value -

For example: Absolute value of 29 is 29.

Absolute value of -56 is 56.

Absolute value of -1000 is 1000.

We have given the product of two numbers is 7904.

Let say we have number 'a' and 'b'.

so, here : a x b = 7904.        ------------ ( i )

The absolute value of one of the numbers is 247.

Let Absolute value of 'a' = 247

So the number 'a' can be either 247 or -247.

because absolute value of 247 is 247 and also absolute value of -247 is 247.

using equation ( i )

a x b = 7904

b = 7904 / a.

when a = 247

b =  32

when a = -247

b = - 32

Hence, Two Possible solutions for the other number are -32 and 32.

Learn more about "Absolute Values" from here: brainly.com/question/1301718

#SPJ9

8 0
2 years ago
A Cepheid variable star is a star whose brightness alternately increases and decreases. Suppose that Cephei Joe is a star for wh
4vir4ik [10]

Answer:

\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi t}{5.3})

0.16

Step-by-step explanation:

According to the question the mathematical model should be

B(t)=2.9+0.35\sin(\dfrac{2\pi t}{5.3})

Differentiating with respect to time we get

B'(t)=0.35\cos(\dfrac{2\pi t}{5.3})\times(\dfrac{2\pi}{5.3})\\\Rightarrow B'(t)=\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi t}{5.3})

So, the rate of change of brightness after t days is \dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi t}{5.3})

After 1 day means t=1

B'(1)=\dfrac{0.7\pi}{5.3}\cos(\dfrac{2\pi\times 1}{5.3})\\\Rightarrow B'(1)=0.16

The rate of increase after one day is 0.16.

8 0
3 years ago
A group of friends goes out to lunch. The total bill, excluding tax, is $22. If tax on the meal is 6% and if a 20% tip is left o
allochka39001 [22]

Answer:28

Step-by-step explanation:

??ok

4 0
4 years ago
The number of students in a chess club decreased from 40 to 19. What is the percent decrease? Round your answer to the nearest p
Viefleur [7K]
The answer is .475 or .5 percent
8 0
3 years ago
Other questions:
  • PLEASE.......!!!!!!!!!!!!!
    15·2 answers
  • What is the percent of change from 5 cups to 8 cups
    11·1 answer
  • A gum ball machine contains 23 green gum balls, 52 red gum balls, 61 yellow gum balls and 30 pink gum balls what percent of the
    5·1 answer
  • Mr. Davis buys 30 tickets for the drama club to attend a play. The tickets cost n dollars each for a total of $360.
    12·1 answer
  • Please help me with this
    5·1 answer
  • Round 954 to the nearest hundred
    13·2 answers
  • What is the slope of a line perpendicular to the line whose equation is
    8·2 answers
  • Valid??<br> A. True<br> B. False
    5·2 answers
  • Find the area of the triangle given:<br> B = 3b^2<br> H = 12p^7b^19
    10·1 answer
  • PLEAASSEE HELP 15 POINTS!!!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!