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xeze [42]
3 years ago
15

PLEASE HELP 25 POINTS CALC MULTIPLE CHOICE

Mathematics
1 answer:
Liula [17]3 years ago
8 0

Answer:

The correct answer is option B

Step-by-step explanation:

Hi! Nice to meet you and have a great day.

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The formula for surface area of a cube is 65, where s is the side length of the cube. If the side length of a cube is 4 centimet
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Answer:

the answer is A

Step-by-step explanation:

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3 years ago
1 (a) (i) Yasmin and Zak share an amount of money in the ratio 21 : 19.
cupoosta [38]

Answer: 1(a) $120

(ii a) $34

Step-by-step explanation:

21-19 = 2

$6/2=3

21x 3( one ratio =$3) =63

19x3 = 57

63+57=120 - (1 A ans)

(ii a) 40x0.15 (percentage decrease)= 6

40-6 = $34

4 0
3 years ago
If DE ⊥ EF, then ∠DEF is a right angle, provide a counter example if false... help??
svp [43]

Answer: true

Step-by-step explanation:

6 0
3 years ago
Multiply the polynomials.<br> (3 x2 + 3x + 5)(6x + 4)
miss Akunina [59]

= ( 3x² + 3x + 5 ) ( 6x + 4 )

= 18x³ + 18x² + 30x + 12x² + 12x + 20

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6 0
3 years ago
Read 2 more answers
Solve the simultaneous equation,<br> 2p - 3q = 4<br> 3p + 2q = 9
Kobotan [32]

Answer:

p = \frac{35}{13} and q = \frac{6}{13}

Step-by-step explanation:

Given equations:

2p - 3q = 4        -----------(i)

3p + 2q = 9       ------------(ii)

Let's solve this equation simultaneously using the <em>elimination method</em>

(a) Multiply equation (i) by 3 and equation (ii) by 2 as follows;

[2p - 3q = 4]        x 3

[3p + 2q = 9]       x 2

6p - 9q = 12            -------------(iii)

6p + 4q = 18            -------------(iv)

(b) Next, subtract equation (iv) from equation (iii) as follows;

     [6p - 9q = 12]        

<u>  -   [6p + 4q = 18]   </u>  

<u>             -13q = -6     </u>  -----------------(v)

<u />

<u>(c)</u> Next, make q subject of the formula in equation (v)

      q = \frac{6}{13}

(d)  Now substitute the value of q = \frac{6}{13} into equation (i) as follows;

     2p - 3(\frac{6}{13}) = 4

(e)  Now, solve for p in d above

<em>Multiply through by 13;</em>

26p - 18 = 52

<em>Collect like terms</em>

26p = 52 + 18

26p = 70

<em>Divide both sides by 2</em>

13p = 35

p = \frac{35}{13}

Therefore, p = \frac{35}{13} and q = \frac{6}{13}

8 0
3 years ago
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