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3 years ago

Consider the functions f(x)=3x squared - 5 and g(x)= square root of x -5 +2

1 answer:

7 0

F(5) = 3x(5)^2 - 5 = 3x25 - 5 = 75 - 5 = 70;
f(4) = 3x(4)^2 - 5 = 3x16 - 5 = 48 - 5 = 43;
f(x) + g(x) = 3 $x^{2} -5 + \sqrt{x-5} +2 = x^{2} + \sqrt{x-5} -3.$

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A cereal company used to fill the boxes with 17 ounces of cereal. They have reduced that amount to 14 ounces. The percent decrea

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3 years ago

Steve made a sign for his room that is shaped like a triangle. It is 4.5 feet long and 3 feet high. He wants to make another sig

Fed [463]

Answer: PART A : $\frac{4.4}{x}$ = $\frac{3}{4}$

PART B : 5.9 FEET

Step-by-step explanation:

Length of the first sign = 4.4 feet

height of the first sign = 3 feet

Length of the second sign = x feet

height of the second sign = 4 feet

If two shapes are similar , then the ratio of their sides are equal,

That is ;

$\frac{h_{1}}{h_{2} }$ = $\frac{L_{1}}{L_{2} }$

PART A

$\frac{4.4}{x}$ = $\frac{3}{4}$

PART B

$\frac{4.4}{x}$ = $\frac{3}{4}$

cross multiplying , we have

3x = 4.4 x 4

3x = 17.6

Divide through by 3

x = 17.6/3

x = 5.86666666666667

x≈ 5.9 feet

Therefore , the length of the new sign is 5.9 feet

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3 years ago

Can someone look over this chart for me to make sure I did it right? I need to find the slope, y-intercept. X-intercept, and fin

Tju [1.3M]

Answer:

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3 years ago

A rectangle has a perimeter of 60 units and one side of length 18 units. If it can be determined, what are the lengths, in units

ladessa [460]

Answer:

option B. 18,12,12

Step-by-step explanation:

perimeter= 60 units

(consider a rectangle with sides a,b,c & d in order)

a= 18 units (given)

c=18 units (since opp. sides of a rectangle are equal)

now the remaining length= 60-(18+18)

= 60 - 36

= 24

so the sum of the remaining sides, ie, b+d= 24

since b and d are equal (opp.sides of a rect.)

b=d=24/2=12

therefore, b=12; c=18; d=12

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8 0

3 years ago

Read 2 more answers

How do you Express (x+1)(2x+2) as a trinomial

Furkat [3]

Answer:

$2x^{2} + 4x +2$

Step-by-step explanation:

Multiply (x + 1) by (2x + 2).

x × 2x is $2x^{2}$

x × 2 is 2x

1 × 2x is 2x

1 × 2 is 2

$2x^{2}$ + 2x + 2x + 2 = $2x^{2} + 4x +2$

6 0

3 years ago