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2 years ago

Help me please :) I’m not sure what else to say lol

Mathematics

2 answers:

kenny6666 [7]2 years ago

4 0

Answer:

x=-8, x=1/4, x=5.

Step-by-step explanation:

The degree is 3, so there must be 3 roots.

factor: x^2(4x-1)+3x(4x-1)-40(4x-1)=0

=(4x-1)(x^2+8x-5x-40)=0

=(4x-1)(x+8)(x-5)=0

x=1/4, -8, 5

vodomira [7]2 years ago

3 0

X = 1/4, 5, -8

Hope this helps!

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The perimeter of a rectangular field is 372 yards. If the width of the field is 87 yards, what is its length?__yards

worty [1.4K]

ANSWER

The length of the rectangular field is 99 yards

EXPLANATION

Given information

The perimeter of a rectangle field is 372 yards

The width of the field is 87 yards

To find the length of the rectangular field, follow the steps below

Step 1: Write the formula for finding the perimeter of a rectangular field

$\begin{gathered} \text{ The perimeter of a rectangular field = 2\lparen l + w\rparen} \\ \text{ where l =length, and w = width} \end{gathered}$

Step 2: Substitute the given data into the formula in step 1

$\begin{gathered} \text{ Perimeter = 2 \lparen l + w\rparen} \\ \text{ Perimeter = 372 yards} \\ \text{ width = 87 yards} \\ \text{ 372 = 2\lparen l + 87\rparen} \\ \text{ Divide both sides by 2} \\ \text{ }\frac{372}{2}\text{ = }\frac{2}{2}(l\text{ + 87\rparen} \\ 186\text{ = l + 87} \\ \text{ subtract 87 from each sides of the equation} \\ \text{ 186 - 87 = l + 87 - 87} \\ \text{ 99 = l} \\ l\text{ = 99 yards} \end{gathered}$

Hence, the length of the rectangular field is 99 yards

7 0

1 year ago

You have $5,000 to invest for ten years. The Bank pays simple interest at an annual rate of 5%. Calculate your balance after 10

Mazyrski [523]

Answer: $7,500

Step-by-step explanation:

Use the formula: SI = P(1 + rt)

SI = 5000(1 + 0.05[10])

SI = 5000 + 2500

SI = $7,500

After 10 years, your balance should be $7,500

3 0

2 years ago

(4 7/8) (8 1/10) ( 3) HELP ASAP!!!!!!

Tom [10]

Answer:

8.4

Step-by-step explanation:

(7/8) (4) = 3.5

(1/10) (8) = 0.8

3.5 × 0.8 × 3 = 8.4

Hope this helps.

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3 years ago

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timofeeve [1]

Answer:

The sale price of a ticket from Austin to Phoenix for someone under 12 is $49.70

Step-by-step explanation:

Let

x----> the sale price of a ticket from Austin to Phoenix for someone under 12

we know that

100%-65%=35%=35/100=0.35

x=0.35*($142.00)

x=$49.70

7 0

3 years ago

Use the figure to complete the proportion.

monitta

Answer:

Pretty sure it's SQ.

Step-by-step explanation:

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3 years ago