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PIT_PIT [208]
3 years ago
11

On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The numb

er b varies directly with the number a. For example b = 2b equals 2 and StartFraction 3 Over 4 EndFraction. when a = –2a equals negative 2 and StartFraction 3 Over 4 EndFraction.. Which equation represents this direct variation between a and b?
b = –a
–b = –a
b – a = 0
b(–a) = 0
Mathematics
2 answers:
zubka84 [21]3 years ago
7 0

Answer:

Yes! The correct answer is A.) b= -a

Step-by-step explanation:

I did the Unit test and i got it correct.

nata0808 [166]3 years ago
4 0

Answer:

b=-a

Step-by-step explanation:

if the distance from origin 0 of b is the same as the distance of a from b but in opposite directions, this makes b differ from a by polarity but with similar values.

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Simplify the polynomial expression given below.<br><br> (2x − 1)(2x2 + 5x + 3) + (3x + 6)
fenix001 [56]

Answer:

4x^{3}+8x^{2} +4x+3

Step-by-step explanation:

Hello

To simplify the polynomial we must eliminate the parentheses

by definition

ax^{n}*bx^{m} =abx^{n+m}

(2x-1)(2x^{2} +5x+3)+(3x+6)\\(4x^{3} +10x^{2} +6x-2x^{2} -5x-3)+(3x+6)\\\\We\ add\ the\ similar\ terms\\\\(4x^{3}+8x^{2} +x-3)+(3x+6)\\\\4x^{3}+8x^{2} +4x+3

I hope it helps

Have a great day

5 0
3 years ago
Read 2 more answers
(7 ^ 10 )^ 2. 7 ^ 9 x 7 ^ 10<br> __________=____________<br> 7 ^ 4. 7 ^ x
Liono4ka [1.6K]

Answer:

woah cool math keep it up

Step-by-step explanation:

6 0
3 years ago
Leo is saving money to buy a snowboard. In March, he saved
Airida [17]
270 I think but I’m not 100% sure
7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B5%7D%7B8%7D%20%20%2B%20%20%5Cfrac%7B1%7D%7B4%7D%20" id="TexFormula1" title
bagirrra123 [75]

Answer:

\large\boxed{-\dfrac{5}{8}+\dfrac{1}{4}=-\dfrac{3}{8}}

Step-by-step explanation:

-\dfrac{5}{8}+\dfrac{1}{4}=\dfrac{1}{4}+\left(-\dfrac{5}{8}\right)=\dfrac{1}{4}-\dfrac{5}{8}\\\\\text{find LCD:}\\\\8=2\cdot4,\ \text{therefore. LCD(4, 8) = 8}\\\\\dfrac{1}{4}=\dfrac{1\cdot2}{4\cdot2}=\dfrac{2}{8}\\\\\text{continuing}\\\\=\dfrac{2}{8}-\dfrac{5}{8}=\dfrac{2-5}{8}=-\dfrac{3}{8}

4 0
3 years ago
Joe drives 20 mi-in 1/2 h. how Long Will it take him to derive 50 mi?
tiny-mole [99]
An hour and 15 minutes.  Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!
7 0
3 years ago
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