3 years ago

Write the expanded form of 5,203

Mathematics

1 answer:

Lena [83]3 years ago

4 0

The expanded form of 5,203 is 5,000+200+03

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Amelia measured the elementary school and made a scale drawing. The scale of the drawing was 11 mm, 4 m. If the schoolyard is 48

cestrela7 [59]

Answer:

176

Step-by-step explanation:

every 11 mm in the drawing equals 4m.

every 1 mm in the drawing equals 4/11 m

Actual size of school yard = 484*4/11 = 176m

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3 years ago

Which equation shows y=3x−15 in standard form?<br> 15x+y=-1<br> 15x-5=1<br> 5x-15y=1<br> 5x-15y=-1

Ksenya-84 [330]

Answer:

the correct answer would be I think 5x-15y=1

Step-by-step explanation:

I have already learned that

7 0

3 years ago

Read 2 more answers

Write a polynomial expression, in simplified form, that represents the AREA of the blanket and use the expression to evaluate th

pochemuha

Answer:

Polynomial expression that represents the area of blanket:

$A(x)=(6x^2+5x-21)cm^2$

If $x=2$ : $A(2)=13cm^2$

Step-by-step explanation:

The area of the rectangle can be calculated with the formula:

$A=lw$

Being l the lenght of the rectangle and w the width of the rectangle.

In this case, the lenght and the width are represented with:

$l=(3x+7)cm$

$w=(2x-3)cm$

Substitute them into $A=lw$ :

$A(x)=(3x+7)(2x-3)$

Then:

Use Distributive property (Remember the Product of powers property: $b^a*b^c=b^{(a+c)}$ ):

$A(x)=(3x+7)(2x-3)\\A(x)=6x^2-9x+14x-21$

Add like terms:

$A(x)=(6x^2+5x-21)cm^2$ (Simplied form)

Evaluate $x=2$ :

$A(2)=(6(2)^2+5(2)-21)cm^2\\A(2)=(6(4)+10-21)cm^2\\A(2)=(24-11)cm^2\\A(2)=13cm^2$

6 0

4 years ago

Is my answer correct !???

puteri [66]

Yes, your answer is correct.

5 0

3 years ago

Multiply and simplify. (4a + 6b)(2a - 2b)

blsea [12.9K]

(4a + 6b) x (2a - 2b)

the answer would be 8a2 + 4ab - 12b2

6 0

3 years ago