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NeTakaya
3 years ago
6

Multiply.

Mathematics
1 answer:
lora16 [44]3 years ago
6 0
7x^2-2x-12 is the answer
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What is the value of x given 68 and 43
wlad13 [49]

Answer:

25

Step-by-step explanation:

7 0
2 years ago
What is the first step to solving this?<br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx-4%7D%3D7" id="TexFormula1" title="\sqr
lyudmila [28]

Answer:

First step is simplifying the equation by moving the square root to the right side and changing it to a Square ²

Step by step:

x-4=7²

(because we changed side square root becomes exponent ²)

x=49+4

x=53

3 0
3 years ago
12 + 3y = 21 <br> Expression or Equation:
victus00 [196]
It is an equation because it has an equal sign. Whereas an expression does not have an equal sign.
5 0
3 years ago
Read 2 more answers
Can someone help with these? WILL GIVE BRAINLIEST.
vivado [14]

Nine

Correct

Ten

The only way I have of solving any of these is either to graph them, or solve them as cubics.

This one is graphed. The choice is C. All are real and 2 are the same. See graph below.

Eleven

Using Pascal's triangle, the fifth line is 1    5   10   10    5    1

So the answer should be 5p^4q

Twelve

Use Synthetic Division

2  || 1     2   - 5     -6

            2     8      6

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

      1     4     3       0

So the quadratic that's left of this division is

x^2 +4x + 3 =0 for the roots.   Factor

(x +3)(x + 1)

These equal zero                

x + 3 = 0

x = - 3

x + 1 =0

x = - 1

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

Answer: Roots (-3, 0)(-1 , 0)

Answer: -3,-1,2

Thirteen

Use synthetic division on all of them. Start out with trying to find -1 as a root. The one that works is C. Then you try -2 also using synthetic division. It also turns out to be a solution for the quartic. What is left over is x^ + 1 which does not factor in the reals.

- 1 || 1    3     3     3     2

           -1     -2    -1    -2

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

      1     2    1      2      0


-2 || 1    2    1     2

           -2    0   -2

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

     1    +0   1

The left over is x^2 + 1 = 0 The roots of this are +/- i which is not in the real number system.    

Answer: C


5 0
3 years ago
a butterfly has a wingspan of 66mm and a height of 6cm. which is greater, its wingspan or its height
dezoksy [38]
1 \ mm= 0.1 \ cm \\ \\&#10;66 \ mm = 66 \times 0.1 \ cm = 6.6 \ cm \\ \\&#10;6.6 \ cm > 6 \ cm

Its wingspan is greater.
7 0
3 years ago
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