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3 years ago

Please help me! I will mark you as the best answer

Mathematics

1 answer:

zmey [24]3 years ago

5 0

Answer:

75/4 = 18.75

Step-by-step explanation:

Because a squar is 4 sides add 75 is the perimiter

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Plz help me get the right answer

rosijanka [135]

Answer:

Sum is the addition

-8x^2+3-9x^2+3x-3
Combine like terms
-17x^2+3x

5 0

3 years ago

Find the square root. V49

Semenov [28]

Answer:

Step-by-step explanation:

$\sqrt{49}$ means x*x = 49

x * x = 49

x= 7

$\sqrt{49} =7$

Hope this helps :)

Have a great day!

6 0

3 years ago

Read 2 more answers

A farmer has a rectangular garden plot surrounded by 200 ft of fence. Find the length and width of the garden if its area is 247

irina1246 [14]

Answer:

$l =45$ --- length

$w = 55$ --- width

Step-by-step explanation:

Given

$P = 200$ --- perimeter

$A = 2475$ --- area

Required

The dimension of the farm

Let

$l \to length; w \to width$

So:

$p = 2(l+w)$ --- perimeter

$2(l+w)=200$

Divide by 2

$l+w=100$

Make l the subject

$l = 100 - w$

Also:

$A= l*w$ --- area

$l * w = 2475$

Substitute: $l = 100 - w$

$(100 - w) * w = 2475$

Open bracket

$100w - w^2 = 2475$

Rewrite as:

$w^2 - 100w +2475 = 0$

$w^2 - 45w - 55w +2475 = 0$

Factorize

$w(w - 45) - 55(w -45) = 0$

Factor out w - 45

$(w - 55)(w -45) = 0$

Take any one of the expression and solve for w

$w -55 = 0$

$w = 55$

Recall that: $l = 100 - w$

$l =100 - 55$

$l =45$

7 0

3 years ago

Simplify the following expression.

ad-work [718]

7-5*[21-33]=7-5*(21-33)=7-5*(-12)=7+60=67

3 0

3 years ago

Explain how to find all the factors of 40

Gennadij [26K]

Here is a easy way to figure this out.

1 x 40

2 x 20

4 x 10

5 x 8

All the numbers you used to multiply are the factors.

1, 2, 4, 5, 8, 10, 20, 40 are your factors of 40

Hope I was able to help you. :-)

3 0

3 years ago

Read 2 more answers