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sukhopar [10]
3 years ago
7

Simplify(7x2 + 5) ( x – 3) + 2x( 3x – 4) MUST SHOW WORK

Mathematics
1 answer:
finlep [7]3 years ago
6 0

Answer:

11x + 6x^2 -57

Step-by-step explanation:

(7x2 + 5)(x - 3) + 2x (3x - 4)

1. Multiply 7x2

(14 + 5)(x - 3) + 2x (3x - 4)

2. Add 14+5

(19)(x - 3) + 2x (3x - 4)

3. Distribute 2x to 3x-4

(19)(x - 3) + 6x^2 - 8x

4. Distribute 19 to x-3

19x - 57 + 6x^2 - 8x

5. Simplify.

11x + 6x^2 -57

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Determine which of the following formulas hold for all invertible n×n matrices A and B.
garik1379 [7]

Answer:

1 hold

2 hold

3 does not hold

4 hold

5 hold

6 hold

7 does not hold

8 does not hold

9 Does not hold

10 Hold

Step-by-step explanation:

The detailed step by step verification is as shown in the attachment

4 0
3 years ago
Examine the following graph, where P(x) is the preimage and I(x) is the image after a transformation.
Arisa [49]

Answer:

the 4th answer I(x) = P(x-4)

Step-by-step explanation:

the first 2 options are out, because just adding values to the functional result values changes the y value, and the curve is pushed up or down. but not to the side.

just imagine

I(x) = P(x-4) means that the function value of previously at x-4 happens now at x. 4 units "later" (or more to the right).

"x+4" would make the functional value at previously x+4 happen now at x. so, everything would shift to the left (happen "earlier").

therefore, the 4th answer option is correct.

3 0
1 year ago
A sphere has a volume of V=900 in cubed. What is the surface area?
ycow [4]
First, we must solve for the radius of the sphere:
V=\frac{4}{3}\pir^{3}
r=(3\frac{V}{4 \pi })^{ \frac{1}{3} }
r=(3*\frac{900}{4 \pi })^{ \frac{1}{3} }
r≈5.99

Second, we must solve for surface area:
A=4\pir^{2}
A=4*\pi*5.99^{2}
A≈450.88 in^{2}
4 0
3 years ago
What number makes the equation true? Enter the answer in the box
Reika [66]

Answer:

6

Explanation:

8 x 6 = 48

48 ÷ 6 = 8

4 0
3 years ago
John and Robyn promised their three sons that they will each get to pick one spot within 500 miles of their home in City A to vi
Ray Of Light [21]

Answer:

A) Weighted graph is attached

B) Shortest routes are;

1. A → C → B → D → A

2. A → D → B → C → A

Step-by-step explanation:

A) We are told their home is in City A. So that's where any journey will begin from.

Furthermore we are told that;

City A to City B = 296 ​miles

City A to City C = 206 ​miles

City A to City D = 79 ​miles

City B to City C = 497 ​miles

City B to City D = 241 ​miles

City C to City D = 281 miles.

I have attached an image of the weighted graph showing the distances on the appropriate edges.

B) We want to find the shortest route using Brute force method. The brute force method is by solving a particular problem by checking all the possible cases/routes to get the desired result we are looking for.

In this case, the desired result is the shortest route for the family to complete their vacation. So, i have attached a diagram showing the different routes via brute force method.

From the brute force method, the shortest length route is 1023 miles and this routes are from Cities;

1. A → C → B → D → A

2. A → D → B → C → A

6 0
3 years ago
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