can someone help me ?

Can Someone Help Me ?

Answers

Answer 1

Answer:

r = - 29

Step-by-step explanation:

Given

- 3r = 87 ( divide both sides by - 3 )

r = [tex]\frac{87}{-3}[/tex] = - 29

Answer 2

Answer:

here,we have-3r= 87now,

r=87÷ -3

r= -29


Related Questions

Find the measure(s) of the interior angles of the polygon.

Answers

Answer:

X = 57

3x-6 = 165

Step-by-step explanation:

Udbzkejdnkdjfif

the legs of a right triangle are 75 and 100. what is the length of the hypotenuse

Answers

Hey there! I'm happy to help!

To find the hypotenuse of a right triangle given two legs, you use the Pythagorean Theorem.

a²+b²=c², where a and b are the legs and c is the hypotenuse.

Let's plug our values into the equation and solve for c (our hypotenuse).

75²+100²=c²

Square the numbers

5625+10000=c²

Add them

c²=25625

Square root both sides

c=125

Have a wonderful day and keep on learning! :D

5.
The table shows the estimated number of deer living in a forest over a five-year period. Are the data best represented by a linear, exponential, or quadratic model? Write an equation to model the data.

A. exponential; y = 89 • 0.62x
B. linear; y = 0.62x + 89
C. quadratic; y = 0.62x2 + 89
D. quadratic; y = 89x2 + 0.62

Answers

Answer:

A. exponential; y = 89 • 0.62x

Step-by-step explanation:

exponential; y = 89 • 0.62^x

Answer:

Option B exponential y = 89 · 0.62x

Step-by-step explanation:

The table shows the estimated number of deer living in a forest over a five year period.

Year            Number of deers

0                     89

1                      55

2                     34

3                     21

4                     13

Now we have to find the model representing this situation. Difference in number of deer, in the forest.

We can see there is a common ratio between each successive term r =  = 0.618

r =  = 0.618

so it can be represented by an exponential model.

Does the graph represent a function? Khan Academy​

Answers

Answer:

yes

Step-by-step explanation:

try using a vertical line, if you move the vertical line across the graph and the line touches the graph only at one point, than it means it is a function

Answer:

This graph represents a function

Step-by-step explanation:

By its definition, a function is a relation or a correlation between two sets (groups) of values where every input corresponds to only one output. What this means is that every input in a function can only have one output. This characteristic results in a unique property in the graph of a function, that is, the verticle line test.  The verticle line test states that when one draws a line through the graph of a function, the line can only intersect the graph in exactly one place in the function. If the line intersects the graph in more than one place, then the graph does not represent a function. In the given situation, any verticle line drawn on the graph only intersects the graph in one place, thus the graph represents a function.

Use the formula y = 2xz + x + z to find y when x

3 and z = 6.

Do not include y = in your answer.

Answers

Answer:

Y=45

Step-by-step explanation:

Y=2xz+x+z

Y=2×3×6+3+6

Y=36+9

Y=45

Harry and Rory are both given the same amount of money for their birthdays.
Harry spends 60% of his and has £8 left.
Rory spends 35% of his.
How much does Rory have left?

Answers

Answer:

21 Harry picks his National Lottery numbers by choosing the first six prime numbers.

Step-by-step explanation:

(PLEASE ANSWER ASAP I JUST NEED TO CHECK MY ANSWER PLEASE EXPLAIN ALSO)

Answers

2.just subtract one from morning and half a hour is 30 minutes so it would be 2 hours left

Answer:

1 hour and half an hour

Step-by-step explanation:

cause 3 hours minus 1 hour minus half an hour equal to 1 hour and half, hope this help u

if anyone can answer the first 5 questions please

Answers

Step-by-step explanation:

steps are in picture above.

Note:if you need to ask any question please let me know.

If there are 5380 feet in a mile Express 4000 get In kilometers

please show how you go it​

Answers

Answer:

ok first there is a problem here there are actually 5280 NOT 5380 feet in a mile. Is this a typo or are you to assume a different length of a mile?

I will stick with the real value of 5280...

5280 feet/ mile * 0.62137119 miles/ km = 3280 f/km

3280 f/km / 4000 feet = .82 km

Step-by-step explanation:

Find the missing variable if 13-4x=1-x

Answers

Answer:

X=4

Step-by-step explanation:

Move the variable to the left side

13-4x+x=1

Subtract 13 on both sides

13-4x+x=1

-13         -13

Collect the like terms

-3x= -12

Divide both side4s by -3

-3x/-3= -12/-3

Answer:

X=4

35 is 26% of what number?

Answers

Answer:

134.61 is the answer . hope This helps

Answer:

The answer is 134.61

Step-by-step explanation:

We have, 26% × x = 35

Or, 26/100 × x = 35

We have: x = 35 × 100/26

35×100 = 3,500

3,500 ÷ 26 = 134.61

x = 134.61

If you use a calculator, simply put 35×100÷26, which will give you the answer.

please help me

I will give you 20 points ​

Answers

Your dividing number for both is by 8. Since 8 hours divided by 8 equals 1. You will do the same to the top and get an answer of 25 miles!!

Why is it helpful to use a problem-solving plan to solve problems?

Answers

Answer:

its helpful to plan out what youre going to do before you do it, as it can get confusing and you may get lost in the process if you dive right into it

5^2x = 3(2^x) find x

Answers

Answer:

Step-by-step explanation:

[tex]5 ^{2x} = 3(2^{x} )[/tex]

[tex]x=\frac{\ln \left(3\right)}{2\ln \left(5\right)-\ln \left(2\right)}\quad \mathrm{ }:\quad x=0.43496 \right)[/tex]


Find the prime factorization of the greatest
3-digit number

Answers

Answer:

3,3,3,37

Step-by-step explanation:

The greatest 3 digit number is 999

Find the value of the question mark.

Answers

Answer:

?= 60

Step-by-step explanation:

yep, that's the answer

HELPPPP- PLS The architecture student counted the number of bricks in each building in her neighborhood. Use the data to complete the histogram below. Bricks per building 2 6 12 20 25 25 28 30 31 32 37 37 43 45 Click to set the height of a missing bar. Bricks per building 5 4 1 Number of buildings 2. 0-9 10-19 20 - 29 30-39 40 - 49 Number of bricks​

Answers

Answer:

#1. it is 25

#2. It is 0-9

The first term of an A.P. is unity and the common difference is 4, which of the following will be a term of this A.P. (a ) 4551 (b ) 10091 ( c ) 7881 ( d ) 13531​

Answers

Answer:

c

Step-by-step explanation:

first term=1

common d=4

nth term=a+(n-1)d

7881=1+(n-1)4

7881=1+4n-4

7884=4n

n=1971

Starting with n = 0, the n-th term in the sequence is

4n + 1

so any number in the sequence must have a remainder of 1 when divided by 4.

We have

4551 = 1137×4 + 3

10091 = 2522×4 + 3

7881 = 1970×4 + 1

13351 = 3382×4 + 3

Find all of the missing angles - a, b, c, and d.

Answers

Answer:

a. 65 degree

B. 25 degree

c. 25 degree

d. 75 degree

Step-by-step explanation:

shown in photo.

Mark me brain list if it help you

Answer:

a = 65°

b = 25°

c = 25°

d = 75°

Step-by-step explanation:

60 + a + 55 = 180 (Angles of a straight line)

a + 115 = 180

a = 180 - 115

a = 65°

a + b + 90 = 180 (Interior angles of a triangle add up to 180°)

65 + b + 90 = 180

b + 155 = 180

b = 180 - 155

b = 25°

b = c (Vertically opposite angles are equal)

c = 25°

d + 15 = 90 (Complementary angles)

d = 90 - 15

d = 75°

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807Peace!

Write the conjugate of the following complex
number:
-3 + 2i

Answers

Answer:

-3 - 2i

Step-by-step explanation:

conjugate of a+bi is a-bi, so conjugate of -3 + 2i = -3 - 2i

BRAINLIEST FOR THE RIGHT ANSWER! THANKS! Indicate in standard form the equation of the line through the given points, writing the answer in the equation box below.
P (0, -4), Q (5, 1)

Answers

Answer:

- X + Y = -4  is the standard form

Y =1X  -4  is the  slope intercept form

Step-by-step explanation:

x1 y1  x2 y2

0 -4  5 1

   

(Y2-Y1) (1)-(-4)=   5  ΔY 5

(X2-X1) (5)-(0)=    5  ΔX 5

   

slope= 1          

B= -4          

   

Y =1X  -4    

Name two rays shown in the figure

Answers

Answer:

There are only 1 ray because a ray only has 1 side that has a little tiny ball

Step-by-step explanation:

dentify the error in finding the distance between A(6,2) and B(1,−4).

Answers

The answer I think is A

(1+sin2A+cos2A)^2=4cos^2A(1+sin2A)

Answers

Answer:

(1+sin2A+cos2A) ^2=4cos^2A(1+sin2A)

Step-by-step explanation:

Here,

L.H.S=(1+sin2A+cos2A)^2

=(1+2sinAcosA+2cos^2A-1)^2

=(2sinAcosA+2cos^2A)^2

={2cosA(sinA+cosA)}^2

=4cos^2A(sinA+cosA)^2

=4cos^2A(sin^2A+2sinA.cosA+cos^2A)

=4cos^2A(sin^2A+cos^A+2sinAcosA)

=4cos^2A(1+sin2A)

=R.H.S

Hence,L.H.S=R.H.S.

(1+sin2A+cos2A)^2=4cos^2A(1+sin2A).

proved.

What’s the figure please

Answers

Answer:

b

Step-by-step explanation:

it doesn't go to the y or x axis so  B is it

Fill in the blank with the correct response.
3
of a =
then I
5
24

Answers

Answer:

8 is the answer

have a great day

Answer:

x = 8

Step-by-step explanation:

Hi there!

[tex]\displaystyle\frac{9}{24}=\frac{3}{x}[/tex]

9/24 can be simplified by dividing both the numerator and denominator by 3:

[tex]\displaystyle\frac{9\div3}{24\div3}=\frac{3}{x}\\\\\\\frac{3}{8} =\frac{3}{x} \\\\\\x=8[/tex]

Therefore, x is 8.

I hope this helps!

If 35 = 5x, then 9 - 7x = ?

Answers

Answer:

Since 35/7=5,  5x7=35.

So x=7.

9-7=5

5x=35

3 more than the quotient of a number and 5 is 4​

Answers

Answer:

let n= the number

n÷5 +3=4

Step-by-step explanation:

Maggie needs to spend at least six hours each week practicing the piano. She already practiced 3 1/4 hours this week. She wants to split the remaining practice time evenly between the last two days of the week. Which inequality best determines the minimum number of hours she needs to practice on each of the two days.

Answers

Answer:

Let X equal the remaining time she needs to practice.

You would have 2x

The combined total needs to be 6 hours or greater.

You need to add the amount she already practiced to 2x.

Now you have: three and one fourth + 2x

This needs to be greater than or equal to 6.

Ans:- three and one fourth + 2x ≥ 6

please help me is for my homework​

Answers

Answer:

[tex]\frac{9}{25}[/tex]

Step-by-step explanation:

to covert persentage to fraction we must divide it by 100

[tex]\frac{36}{100}[/tex]  now we have to simplify it divide by 2 till you get simplified

the last simplified answer is : [tex]\frac{9}{25}[/tex]

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