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2 years ago

(w+9) (w+4) find the product of the equation

Mathematics

1 answer:

Pachacha [2.7K]2 years ago

8 0

Answer:

w^2 + 13w + 39

Step-by-step explanation:

Multiplying Polynomials (FOIL- Firsts, Outs, Inners, Lasts)

(w+9) (w+4) Multiply- Firsts (w*w) Outs (w*4) Inners (9*w) Lasts (9*4)

w*w + w*4 + 9*w + 9*4 Multiply the FOIL

w^2 + 4w + 9w + 36 Combine like terms (same variables, numbers)

w^2 + 13w + 39

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I’m confused on this one

tatyana61 [14]

$6\sqrt2$

Why?

We have the isosceles right triangle. The length of legs are 6. Use the Pythagorean theorem:

$h^2=6^2+6^2\\\\h^2=36+36\\\\h^2=36\cdot2\to h=\sqrt{36\cdot2}\\\\h=\sqrt{36}\cdot\sqrt2\\\\h=6\sqrt2$

In general, the formula for calculating the hypotenuse in an isosceles right triangle is $h=a\sqrt2$

a - a leg, h - a hypotenuse

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3 years ago

A salesperson earns 7.5% commission on each vehicle sold. What price

Eddi Din [679]

Hey there! I’m just going to write out how I would solve this.

3,000=7.5%⋅x
100/7.5=13 1/3
3,000⋅13 1/3=x
x=$40,000

5 0

2 years ago

What is the ratio of 1400kg and 0.76kg

Goryan [66]

Answer:

35000:19

Step-by-step explanation:

→1400kg/0.76kg

→35000:19

8 0

2 years ago

Read 2 more answers

Identify the maximum or minimum value, domain, and range of the graph of the quadratic function.

Virty [35]

Answer:

See below ~

Step-by-step explanation:

Details of the graph of the quadratic equation

Minimum value = -1
Domain : all real numbers
Range : y ≥ -1

5 0

2 years ago

the perimeter of a rectangular painting is 356 centimeters. if the length of the painting is 96 centimeters, what is its width.

sladkih [1.3K]

P = 2(l + w)
p = 356
l = 96

356 = 2(96 + w)
356 = 192 + 2w
356 - 192 = 2w
164 = 2w
164/2 = w
82 = w

check....
p = 2(l + w)
356 = 2(96 + 82)
356 = 2(178)
356 = 356 (correct)

so the width (w) = 82 cm

5 0

3 years ago