Let r varies inversely as u, and r = 8 when u =5. Find r if u=55

Answer:

0

Step-by-step explanation:

To solve this, you first plug in the 4 and 2 where the x and y's go, making the expression (4 - 2(2))*(4 + 2(2)). Then you solve each parenthesis (below).

(4 - 2(2))*(4 + 2(2)).

(4 - 4)*(4 + 4).

0*8

0

Hope this helped! If you have any questions, feel free to message me :)

Answer:

£972.41

Step-by-step explanation:

1 x 0.5 =1.05

1.05x 800 ^4= £972.405

rounded is  £972.41

Answer:

the other one is t >= 5. hope this helps

Answer:

See below.

Step-by-step explanation:

We have the expression:

[tex]\sqrt{8c+4}[/tex]

And we want to determine the domain restrictions of the expression.

Remember that the radicand (expression under the square root) must always be positive or 0. This is because we can't take the square root of a negative (and the square root of 0 is just 0). So, to find the domain restrictions, we can write and solve for the following inequality:

[tex]8c+4\geq0[/tex]

This is saying (8c+4) must be greater than or equal to 0. In other words, it's positive or 0.

So, solve for c. Subtract 4 from both sides:

[tex]8c\geq-4[/tex]

Now, divide both sides by 8. This yields:

[tex]c\geq4/8\\c\geq -1/2[/tex]

So, our c must be greater than or equal to -1/2. If it is less than -1/2, we won't have a solution.

Answer:

d-2x-3

Step-by-step explanation:

The factor of the trinomial will be (2x + 3) and (2x + 3). Then the correct option is D.

It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.

The trinomial is given below.

⇒ 4x² + 12x + 9

Then the factor of the trinomial will be

⇒ 4x² + 12x + 9

⇒ 4x² + 6x + 6x + 9

⇒ 2x(2x + 3) + 3(2x + 3)

⇒ (2x + 3)(2x + 3)

⇒ (2x + 3)²

Then the correct option is D.

More about the factorization link is given below.

https://brainly.com/question/6810544

#SPJ2

Answer: Actual length of the bus = 171.67 feet

Width of the lake on the scale drawing = 12.5 inches

Step-by-step explanation:

Given : A scale drawing of a school bus has a scale of 12 inch to 5 feet.

i.e. 12 inch = 5 feet

[tex]\Rightarrow \text{ 1 inch}=\dfrac{5}{12}\text{ feet}[/tex]

If length of school bus on scale drawing = 412 inches

Then, Actual length of bus = [tex]\dfrac{5}{12}\times412=171.67\ \text{feet}[/tex]

A scale drawing of a lake has a scale of 1 cm to 80 m.

If the actual width of the lake is 1,000 m

then, the width of the lake on the scale drawing = [tex]\dfrac{1000}{80}=12.5\text{ inches}[/tex]

Answer:

14 miles

Step-by-step explanation:

You divide. 132/13

Which gives you 14. Every 14 miles, the riders replaced a horse.

So, They rode 14 miles before replacing each horse.

Hope this helps:)

Answer:

14 miles

Step-by-step explanation:

182/13 = 14 miles

Assuming each horse was only ridden once

then a total of 16 horses were ridden for a total of 182 miles

182 miles /13  horses  = 14  miles  horse

Of course, if each horse was ridden more than once before being replaced the distance between replacements could be reduced.

Note that the fact that there were 3 riders is irrelevant.

Answer:

1

Step-by-step explanation:

a negative plus a positive is equal to a negative minus a negative. -29+30=-29-(-30)

Take away negative 30 from -29 and you get 1.

Answer:

9.6

Step-by-step explanation:

Answer:

so do you mean the step by step??

Answer:

Step-by-step explanation:

= -3 2/5 - 5/6

= - 17/5 - 5/6  ---- LCM of 5 & 6 is 30

= _  17 * 6   _   5 * 5  

       5 * 6        6 * 5

=  _  102 - 25

            30

=  _ 127

        30

Answer: [tex]y=5.666667[/tex]   or   [tex]y=5 \frac{6}{9}[/tex] in fraction

Step-by-step explanation:

1. Simplify  -9.8-y+2.8y  to  -9.8+1.8y

0.4=-9.8+1.8y0.4=−9.8+1.8y

2. Regroup terms

0.4=1.8y-9.8

3. Add 9.8 to both sides.

0.4+9.8=1.8y

4. Simplify  0.4+9.8  to  10.2

10.2=1.8y

5. Divide both sides by 1.8

[tex]\frac{10.2}{1.8} =y\\[/tex]

6. Simplify [tex]\frac{10.2}{1.8\\}[/tex] to 5.666667

5.666667 = [tex]y[/tex]

7. Switch sides.

[tex]y=5.666667[/tex]

Hope this helps and can you please mark me brainliest because I just need 1 more brainliest to become expert:)

Answer:

[tex]y=\frac{17}{3}\\\\y =5\frac{2}{3}[/tex]

Step-by-step explanation:

[tex]0.4 = -9.8 -y + 2.8y\\\\Switch\:sides\\\\-9.8-y+2.8y=0.4\\\\\mathrm{Add\:similar\:elements:}\:-y+2.8y=1.8y\\\\-9.8+1.8y=0.4\\\\\mathrm{Multiply\:both\:sides\:by\:}10\\\\-9.8\times\:10+1.8y\times\:10=0.4\times\:10\\\\Refine\\\\-98+18y=4\\\\\mathrm{Add\:}98\mathrm{\:to\:both\:sides}\\\\-98+18y+98=4+98\\\\Simplify\\\\18y=102\\\\\mathrm{Divide\:both\:sides\:by\:}18\\\\\frac{18y}{18}=\frac{102}{18}\\\\Simplify\\\\y=\frac{17}{3}\\\\y =5\frac{2}{3}[/tex]

Answer:

y= -7x+2

Step-by-step explanation:

Answer:

y = -7x + 2

Step-by-step explanation:

The y-intercept is 2. The slope is x which is -7.

Write the equation now.

-7x + 2.

~I hope I helped you! :)~

Answer:

It is 80%

Step-by-step explanation:

180 divided by 225 = 80%

Answer:

C=-4 (I'm not sure why my negative symbols are not showing up properly, the answer is C equals a negative four.)

Step-by-step explanation:

14=-2c-6-3c

14=-5c-6

5c+14=-6

5c=-20

c=-4

Answer:

I was totally in your shoes then..

Step-by-step explanation:

Watch Fort Bend Tutoring on YT, he got me through those math problems...I can assure it will help, and he makes Math fun

Answer:

36 feet

Step-by-step explanation:

12inches =1 yard

Answer:

36 feet

Step-by-step explanation:

There are 3 feet in a yard, so all you have to do is multiply 12 by 3. 12x3=36

Have a great day!!! I hope this helps C:

Answer:

y=2

Step-by-step explanation:

y+7=9(y-1)

y+7=9y-9

16=8y

2=y

Answer: I believe it is either B or D because it uses rotation!

Step-by-step explanation:

Ummm...person...you do know  we need to see the graph, not the answers, right?

Answer:

Step-by-step explanation:

It's the-9 one

Answer:

I believe it C

Step-by-step explanation:

Brainliest ??

Answer:

C

Step-by-step explanation:

I'd say C because:

It's all about patterns.

Answer:

In the explanation. :)

Step-by-step explanation:

1/3x-17y

Hope this helps. Have a great day!

Answer:

2.75

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Given

x² - 5x - 14 = 0

Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)

The factors are - 7 and + 2, since

- 7 × 2 = - 14 and - 7 + 2 = - 5, thus

(x - 7)(x + 2) = 0

Equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

x + 2 = 0 ⇒ x = - 2

Answer:

A. x=-7, x=2

Step-by-step explanation:

Answer:

The slope of the line graph is (12,-6)

Step-by-step explanation:

If you start at the bottom point and go up you will count 12. Then, if you go 0ver until you get to the top point you will count 6. Since you are going back, it would be a -6.

50

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

Add the two angles

80+50=130

The total degree of a triangle is 180 so subtract

180-130=50

(its also an isosceles triangle)

Answer:

(Assuming they are both right triangles)

214.5 sq ft

Step-by-step explanation:

Area of a right triangle= leg×leg / 2

25×25 / 2 = 312.5

14×14 / 2 = 98

312.5-98= 214.5