3 years ago

Perform the multiplication, (7x^2+a^2)(x^2–3a^2)

Mathematics

1 answer:

natita [175]3 years ago

3 0

7x^4 - 21x^2a^2 + x^2a^2 - 3a^4
7x^4 - 20x^2a^2 -3a^4

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dimaraw [331]

The area of a rectangle is length times width or base times height

so 5 times 2x-3

if you multiply them together 5(2x-3) you would get 10x-15

there is no value of x

so the area would be 10x-15ft^2

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3 years ago

Round 9254 to the nearest hundred

wolverine [178]

9300 is the correct answer

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3 years ago

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In the figure, p║ q find m∠1 1. m∠1 = 69 2. m∠1= 50 3. m∠1= 61 4. m∠1 = 40

Alona [7]

Answer:

Hope this helps you.

The answer is 61, x+40+5x+14=180, so x equals 21. 5(21)+14 ends up equaling 119, so 180-119 equals 1

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4 years ago

the scientist's collection that has granite that weighs 74 26/36 lbs, marble that weighs 63 16/34 lbs, and quartz that weighs 81

Viktor [21]

Answer:

(D)6 1/2 lbs

Step-by-step explanation:

$\text{Weight of the quartz = }81 \dfrac{9}{40} \text{ lbs}\\\dfrac{9}{40}=0.225 \\$Therefore:$ 81 \dfrac{9}{40} \approx 81.25\text{ lbs (to the nearest 1/4 lbs)}\\\text{Weight of the granite = }74 \dfrac{26}{36} \text{ lbs}\\ \dfrac{26}{36}=0.722 \\$Therefore:$74 \dfrac{26}{36} \approx 74.75\text{ lbs (to the nearest 1/4 lbs)}$

Difference = 81.25 - 74.75

=6.5 lbs

The correct option is D.

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4 years ago

5 A line passes through the point (4, 1) and has a slope of - Write an equation in slope-intercept form for this line.

svp [43]

Answer:

_______Y=0.75X-2_______

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4 years ago