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3 years ago

When v= -7 and C=2 look at picture

Mathematics

2 answers:

Bond [772]3 years ago

5 0

Answer:

Step-by-step explanation:

insert the numbers and divide

-4(-7)= 28

2^2= 4

28/4= 7

matrenka [14]3 years ago

5 0

Answer:

Step-by-step explanation:

plug in, then simplify(divide)

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Number 3?? I can’t figure it out

monitta

divide the total cost by the number of hinges:

Mark's hardware: $28 / 8 = $3.50 per hinge

Steve's Supply: $39 / 11 = $3.45 per hinge.

$3.45 is less than $3.50, so the answer would be C.

7 0

3 years ago

Read 2 more answers

Margo paid $550.00 for dance classes. She paid a $50.00 registration fee and $25.00 for each week she was enrolled in the classe

trapecia [35]

Answer:

She enrolled in the dance classes for 20 weeks

Step-by-step explanation:

* Margo paid $550.00 for dance classes

* She paid a $50.00 registration fee

* She paid $25.00 for each week she was enrolled in the classes

* We need to find the number of weeks w she enrolled in the

dance classes

<u><em>Lets write an equation of these information and solve it</em></u>

∵ The registration fee = $50

∵ The cost of of each week = $25

∵ The number of weeks = w

She will pay $50 plus $25 times the number of the weeks

∴ She paid in the dance classes = 50 + 25 w

∵ She paid $550 for the dance classes

∴ 50 + 25 w = 550

The equation is 50 + 25 w = 550

<u><em>Lets solve the equation</em></u>

∵ 50 + 25 w = 550

Subtract 50 from both sides

∴ 25 w = 500

Divide both sides by 25

∴ w = 20

∵ w represents the number of the weeks

∵ w = 20 weeks

<em>She enrolled in the dance classes for 20 weeks</em>

5 0

3 years ago

(7x^3y^2)(4x^3y^2)<br><br><br>^=exponents<br>solve in scientific Notation

Hitman42 [59]

<h3>Answer:</h3>

(2.8×10¹)x⁶y⁴

<h3>Step-by-step explanation:</h3>

Multiplication can be done in the usual way, then the number converted to scientific notation. Scientific notation does not apply to the variables.

$(7x^3y^2)(4x^3y^2)=(7\cdot 4)x^{3+3}y^{2+2}=28x^6y^4\\\\=2.8\cdot 10^1x^6y^4$

_____

If you write the numbers in scientific notation to start, then do the multiplication, the effect is virtually the same: an adjustment is needed in the product to get it back to scientific notation.

(7)(4) = (7×10⁰)(4×10⁰) = 7·4×10⁰⁺⁰ = 28×10⁰ = 2.8×10¹

3 0

3 years ago

A recipe for cookies calls for 3/4 cups of butter. I want to make 2/3 of the recipe. How much butter should I use to make the co

avanturin [10]

Answer:

Use 1/2 cup butter

Step-by-step explanation:

.75 × .66 = .495

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3 years ago

Which conic section is represented by the following equation?

Alla [95]

Answer:

its a hyperbola

Step-by-step explanation:

did it on edge 2021

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3 years ago

Read 2 more answers