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marshall27 [118]
3 years ago
10

-16=d+21 i need help​

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
4 0

Answer:

d= -37

Step-by-step explanation:

subtract 21 on both sides which would be -16-21 and that would come to be d=-37

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A x 4 = E
uranmaximum [27]
Jane's april 1 inventory had a cost of 48,000 and a retail value of 70,000 during april net purchases cost 210,000 with a retail value of 390,000. net sales at retail for jane for april were 280,000. calculate the cost of ending inventory using the retail inventory method
3 0
3 years ago
What is the product of (3x-9) and 6x↑2-2x+5 Write your answer in standard form.
klio [65]

Answer:

a. 18x^3 -60x^2 + 33x - 45

b. No

Step-by-step explanation:

Given:

(3x-9) and 6x^2-2x+5

=> the production of them is:

(3x-9)(6x^2-2x+5) , we will use distributive law to solve this To do that. we first multiply  6x^2-2x+5 by 3x then by -9. This is done as follows

= 3x (6x^2-2x+5) - 9(6x^2-2x+5)  = (3x * 6x^2-3x * 2x+3x *5) - (9* 6x^2-9* 2x+9* 5)\\\\= (18x^3 -6x^2+ 15x) - (54x^2 - 18x +45)

Then Open both brackets

= 18x^3 -6x^2+ 15x -54x^2 + 18x -45

After that, we group the same terms

= 18x^3 -(6x^2 +54x^2)+ (15x  + 18x) -45

= 18x^3 -60x^2 + 33x - 45

(b) Is the product of (3x-9) and  6x^2-2x+5  equal to the product of (9x-3) and 6x^2-2x+5

No, let find the product of (9x-3) and 6x^2-2x+5 , we will use distributive law to solve this as the above example.

= (9x-3)(6x^2-2x+5)

= 9x (6x^2-2x+5) - 3(6x^2-2x+5)

=(9x * 6x^2 - 9x * 2x + 9x *5) - (3* 6x^2 - 3 * 2x + 3* 5)

= (54x^3  - 18x^2+ 45x) - (18x^2 - 6x +15)

After that, we open the bracket to find the same terms

= 54x^3  - 18x^2+ 45x -18x^2 + 6x -15

= 54x^3  - 18x^2 -18x^2 + 45x  + 6x -15

= 54x^3  - 36x^2 + 51x  -15  

As you can see 54x^3  - 36x^2 + 51x  -15   ≠18x^3 -60x^2 + 33x - 45

Hope it will find you well.

3 0
4 years ago
A soccer team, a golf team, and a diving team have three different
almond37 [142]

Answer:

Golf team - Tigers

Step-by-step explanation:

Diving team = Hornets

Hornets are the largest of the eusocial wasps, and are similar in appearance to their close relatives yellow jackets. Some species can reach up to 5.5 cm (2.2 in)

Since the soccer team's nickname is not the Tigers, then there's only the 'Bear' option left

=> Soccer team = Bear

At the end, there's still one option left; Tigers

<u>Therefore, the nickname of the golf team is Tigers</u>

6 0
3 years ago
Look at this triangle work out length BC
Andreas93 [3]

Answer:

The length of BC is √105 cm or 10.2 cm.

Step-by-step explanation:

You have to apply Pythagoras Theorem, c² = a² + b² where c represents hypotenuse, a and b are the sides :

{c}^{2}  =  { a}^{2}  +  {b}^{2}

let \:a =BC \:, \:  b = 8 \: , \: c = 13

{13}^{2}  =  {BC}^{2}  +  {8}^{2}

169 =  {BC}^{2}  + 64

{BC}^{2}  = 169 - 64

{BC}^{2}  = 105

BC =  \sqrt{105}

BC = 10.2 \: cm \: (3s.f)

7 0
3 years ago
Read 2 more answers
Jamal uses the steps below to solve the equation 6x – 4 = 8.
ohaa [14]

"if equals are divided by equals, the results are equal." This is a corollary of the distributive property for multiplication.


5 0
4 years ago
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