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4 years ago

What is 4a+7b+3a-2b+2a;a=-5 and b=3

1 answer:

4 0

<span>4a+7b+3a-2b+2a
Substitute all of the variables for the numbers given
4(-5)+7(3)+3(-5)-2(3)+2(-5)
Multiply all of the variables by their coefficient
-20+21-15-6-10
Combine like terms
Final Answer: -30
</span>

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Determine the pattern in the table and write the function rule. <br> Please help asap.

klio [65]

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3 years ago

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Solve for x x-1 ≥8 <br> please help

Reptile [31]

Steps to solve:

x - 1 ≥ 8

~Add 1 to both sides

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3 years ago

a rectangle field has an anrea of 40cm^2. if one side of the field is 3m longer than the other side, find the new area of the fi

oksian1 [2.3K]

The area of the field where the length of each side is increased by 10% is 48.4 $cm^{2}$ .

Step-by-step explanation:

The given is,

A rectangle field has an area of 40 $cm^{2}$

If one side of the field is 3 cm longer than the other side

The length of new area in each side is increased by 10%

Step:1

Let,

$b$ - One side of rectangle

$l$ - Other side of rectangle

From given.

$l$ - $b$ +3

Formula for area of rectangle,

$Area, a = lb$

40 = ( b+3) × b

40 = $b^{2}$ + 3b

Solving the above the equation,

b = 5 cm

l = 8 cm

Step:2

If the area of rectangle increased by 10%,

l = 8 + ( 8 × $\frac{10}{100}$ )

= 8.8

b = 5 + ( 5 × $\frac{10}{100}$ )

= 5.5

Area of rectangle is,

a = ( 8.8 × 5.5 )

= 48.4 square centimeters

Result:

The area of the field where the length of each side is increased by 10% is 48.4 $cm^{2}$ , if a rectangle field has an area of 40 square centimeters and one side of the field is 3 cm longer than the other side.

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3 years ago

Identify the vertical asymptote(s) of each function. Check all of the boxes that apply. f(x)=3x/x^2-16 Answers: x = -16 x = -4 x

Lostsunrise [7]

For anyone who still needs this, -4 and 4

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3 years ago

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A group of students where asked about the number of e-mails they each send that day. The results are: 0, 1, 1, 2, 3, 3, 4, 4, 6,

valkas [14]

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