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DedPeter [7]
3 years ago
14

lass="latex-formula">
Mathematics
1 answer:
sasho [114]3 years ago
6 0

Answer:

x^2+5x-14

Step-by-step explanation:

Using FOIL method, we get (x^2)+(-2x)+(7x)+(-14), which is just x^2+5x-14

FOIL = First, Outer, Inner, Last

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10. The dimensions of a triangular prism are shown in the diagram. 10 cm 10 cm www 8 cm 34 cm -12 cm What is the volume of the t
mihalych1998 [28]

Answer:

I dont understand, what does www mean?

Step-by-step explanation:

Uhm I would appreciate the length and height so I can solve.

Remember formula of a triangle is:

BH x 1/2

OK so 8 x 12 = 96

96 divided by 23 = 32

Your answer is 32 I am pretty sure if that's the following formula of a PRISM. Please wait for more responses if needed, thank you.

Without division:

8 x 12 = 96

6 0
3 years ago
U= -4-15j<br> V= -8i-8j<br> Find U•V<br> PLEASE HELP ME GUYS, I WILL MARK BRAINLIEST
ioda

Answer:

32i + 32j + 120ij + 120j^{2}

Step-by-step explanation:

U.V = U x V

(-4 - 15j)(-8i - 8j)

= 32i + 32j + 120ij + 120j^{2}

5 0
3 years ago
Answers
nlexa [21]
La
the last one because it is close to each together
5 0
3 years ago
Read 2 more answers
Can you solve this exercise?<br> please solve so I understand
Elanso [62]

= 4 - 4  \:  log_{5}(10)  - 4 log_{2}(10)  + 4 log_{2}(10)  log_{5}(10)  \\  \\ or \:  \\  \\  = 4

the answer is 2

<h2><u>hope</u><u> it</u><u> helps</u></h2>

<u>see</u><u> the</u><u> attachment</u><u> for</u><u> explanation</u>

5 0
3 years ago
Read 2 more answers
I really need help rn T_T plz help me out!
pshichka [43]

Answers:

  • The lengths of sides PQ and RS are <u>   13   </u>
  • The lengths of sides QR and SP are <u>   </u><u>20  </u>

This is a 13 by 20 rectangle.

============================================================

Explanation:

Refer to the drawing below.

Let x be the length of side SP. Since we're dealing with a rectangle, the opposite side is the same length. Side QR is also x units long.

We're told that RS = SP - 7 which is the same as saying RS = x-7

We also know that PQ = x-7 as well because PQ is opposite side RS.

In short, we have these four sides in terms of x

  • PQ = x-7
  • QR = x
  • RS = x-7
  • SP = x

as shown in the drawing. The four sides add up to the perimeter of 66.

PQ+QR+RS+SP = perimeter

PQ+QR+RS+SP = 66

(x-7)+x+(x-7)+x = 66

4x-14 = 66

4x = 66+14

4x = 80

x = 80/4

x = 20

Use this x value to find the unknown side lengths.

  • PQ = x-7 = 20-7 = 13
  • QR = x = 20
  • RS = x-7 = 20-7 = 13
  • SP = x = 20

In short, this is a 13 by 20 rectangle.

-----------------

Check:

perimeter = side1+side2+side3+side4

perimeter = PQ+QR+RS+SP

perimeter = 13+20+13+20

perimeter = 33+33

perimeter = 66

The answer is confirmed.

4 0
3 years ago
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