PLS HELP ASAP!!!! Determine whether each relation is a function. Explain your reasoning.

PLEASE HELP EASY 6TH GRADE MATH! WHOEVER DOES THE BEST GETS BRAINLIEST PLZZZZZZ?

zhuklara [117]

Answer:

1.B 2.B 3.A

Step-by-step explanation:

1.(70-24)/2 = 23

2. 295 x 8.95 =2640.25 - 400 = 2240.25 ~ $2000

3. 21hoursx48 weeks x 2years = 2016 hours ~ 2000

8 0

3 years ago

PLEASE HELP GIVING BRAINLIEST !!!!

Contact [7]

Answer:

hi :):):):):):):):) don't ignore me T_T

Step-by-step explanation:

6 0

3 years ago

Multiply and give the answer in scientific notation:

kakasveta [241]

Step-by-step explanation:

given

$(1.5 \times {10}^{4} )(8 \times {10}^{8} )$

in order to make multiplication easier we need to change the 1.5 into a whole number form.

thus

$(15 \times {10}^{ - 1} \times {10}^{4} )(8 \times {10}^{8} )$

$= (15 \times {10}^{4 - 1} )(8 \times {10}^{8} )$

First law of indices applied there

=(15×10^3)(8×10^8)

=(15×8)(10^3×10^8)

=120×10^3+8 ( first law of indices, which states that , numbers of the same base multiplying each other, take one of the base and add the exponent. and clearly both 15 and 8 are in base 10

=120×10^11

=1.20×10^2 ×10^11

=1.20×10^11+2

=1.20×10^13

so the answer is alt B

7 0

2 years ago

Find the slope of the line that passes through each pair of points. Expressed as a fraction in simplest form. (8,2),(8,-1)

boyakko [2]

Answer:

x = 8

Step-by-step explanation:

The explanation are the pictures. I hope I gave you the correct answer.

8 0

2 years ago

I think its C, not sure

Alona [7]

Yes; you are correct.
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The correct answer is:
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Answer choice: [C]: " x³ − 9x² + 23x − 12 " .
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Note: (a − b) (c − d + e) = ac − ad + ae − bc + bd − be ;
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(x − 4) (x² − 5x + 3) =

x * x² = x³ −

x * 5x = 5x² +

x * 3 = 3x −

4 * x² = 4x² −

-4 * 5x = -20x +

-4 * 3 = -12;
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 (x − 4) (x² − 5x + 3) =

x³ − 5x² + 3x −4x² − (-20x) + (-12) ;

= x³ − 5x² + 3x −4x² + 20x − 12 ;

= x³ − 5x² − 4x² + 3x + 20x − 12 ;

= x³ − 9x² + 23x − 12 ; which is:
__________________________________________________
Answer choice: [C]: " x³ − 9x² + 23x − 12 " .
__________________________________________________

7 0

3 years ago