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3 years ago

9

HElp me i give best a brainest

2 answers:

Vesna [10]3 years ago

7 0

Answer:

d. 7 and 16; 8 :14,4:7 and 16:28.

Lubov Fominskaja [6]3 years ago

3 0

Answer:

D. 7 and 16; 8 : 14, 4 : 7, and 16 : 28

Step-by-step explanation:

1. the first ratio for 8 and 14 is 4 : 7. so that would eliminate the first two answer choices.

2. since the ratio is 4 : 7, that would mean the second value for buses is 7 because the second value for taxis is 4. and the second values for both taxis and buses would be equal to the ratio.

3. 28 is the third value for the bus. and since the ratio is 4 : 7, you have to find the value that 7 can be multiplied by to get 28. 7 multiplied by 4 is 28. you also have to multiply the first number of the ratio (4) by 4. and the product would be 16.

4. So the final answer is D.

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Sam raked 3 bags of leaves in 16 minutes. If he continues at the same rate, how many minutes will it take him to rake 9 bags?

zmey [24]

Answer:

48 minutes.

Step-by-step explanation:

9 divided by 3 equals 3, 16 multiplied by 3 equals 48.

8 0

3 years ago

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Sedaia [141]

Answer:

I need to see letter P first mate XD

Step-by-step explanation:

6 0

3 years ago

Use differences to fins a pattern in the sequence 0,12,72,240,598,1250,2322

sergiy2304 [10]

Answer:

8th term is 3980.

Step-by-step explanation:

0 12 72 240 598 1250 2322

Differences in successive terms

are:

12 60 168 358 652 1072

48 108 190 294 420

60 82 104 126

22 22 22

So calculating the 8th term , working from the last line to the first:

126 + 22 = 148

148 + 420 = 568

1072 + 568 = 1658

Finally the 8th number = 2322 + 1658 = 3980

7 0

2 years ago

Does anyone have the answers for the rest of this or know the answers ?

irga5000 [103]

Answer:

4.

a) $4x^4-4x^3-16x^2+16x$

b) $4x^4-4x^3-16x^2+16x$

5. Yes

Step-by-step explanation:

The distributive property is:

$(a+b)(c+d)=ac+ad+bc+bd$

It can be extended to a lot of terms as well.

We will use this to multiply both of the probelms shown.

4 a)

$(4x^2-4x)(x^2-4)=(4x^2)(x^2)-(4)(4x^2)-(4x)(x^2)+(4x)(4)=4x^4-16x^2-4x^3+16x=4x^4-4x^3-16x^2+16x$

The answer is $4x^4-4x^3-16x^2+16x$

4 b)

$(x^2+x-2)(4x^2-8x)=(x^2)(4x^2)-(8x)(x^2)+(x)(4x^2)-(8x)(x)-(2)(4x^2)+(2)(8x)=4x^4-8x^3+4x^3-8x^2-8x^2+16x=4x^4-4x^3-16x^2+16x$

The answer is $4x^4-4x^3-16x^2+16x$

5. Yes

4 0

3 years ago

After x + 2 over 2 minus X+1 over 3x have been combined using the least common denominator of 6x, what is the numerator?

SIZIF [17.4K]

Answer:

3x²+4x-2

Step-by-step explanation:

$\frac{x+2}{2}$ - $\frac{x+1}{3x}$ are not like terms. To make them like terms, you have to multiply the first fraction by 3x, and the second by 2.

This makes it $\frac{3x(x+2)}{6x}$ - $\frac{2(x+1)}{6x}$ , which can be expanded to $\frac{3x^{2}+6x}{6x}$ - $\frac{2x+2}{6x}$ .

This can be simplified to $\frac{3x^{2} +4x-2}{6x}$ .

The numerator is therefore 3x²+4x-2.

3 0

3 years ago