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N76 [4]
4 years ago
14

Match the expressions with their simplified versions.

Mathematics
2 answers:
oee [108]4 years ago
8 0

Answer are in order from top to bottom

1. 8

2. square of 7

3. 1/2

4. 20

Alenkasestr [34]4 years ago
3 0

Answer:

Step-by-step explanation:

1. 4\sqrt{2}*\sqrt{2} = 4*\sqrt{2}^{2}=4*2=8

2.3\sqrt{7} -2\sqrt{7} =(3-2) \sqrt{7} = 1*\sqrt{7} =\sqrt{7}

3.\frac{\sqrt{7} }{2\sqrt{7} } =\frac{1}{2}

4.2\sqrt{5} *2\sqrt{5} =2*2*\sqrt{5} *\sqrt{5}=4*5=20

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gizmo_the_mogwai [7]

Answer:

The answer is -3 for B. and idk for A.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
You love nuts. You go to the store to buy almonds and cashews. Cashews cost $2 per pound and Almonds cost $5 per pound. You end
lesantik [10]
The answer should be 450 divided by two
7 0
3 years ago
Factor x^4 - 2x^3 - 33x^2 + 50x + 200 completely using the given factor x^2 - 25.
PIT_PIT [208]

You can do synthetic division twice immediately (or once if you know how to handle x^2 - 25 all at once. I'll use 2 divisions. x^2 - 25 is (x + 5)(x - 5). Both of them are zeros to the given equation which means that x = +5 and

x = - 5  are both zeros of the given quartic.

5        1      -2       -33       50         200

                 5         15       -90         -200          

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

          1       3        -18       -40         0

What you have now is x^3 + 3x^2 - 18x - 40 = 0

Do another synthetic division

-5        1       3       -18       -40

                   -5       10        40

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

           1      -2        -8        0

The result is

x^2 - 2x - 8 = 0 which factors.

(x + 2)(x - 4) = 0

Answer

The factors are (x + 2)(x - 4)(x + 5)(x - 5) = 0

Long division

x^2 + 0 + 25 ||x^4 - 2x^3 - 33x^2 + 50x + 200 ||x^2 - 2x - 8

                      x^4 + 0  +    25x^2

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

                               -2x^3 -8x^2  +  50x

                                -2x^3 + 0  +     50x

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

                                            -8x^2 + 0 +200

                                            -8x^2 + 0 + 200

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

                                                       0

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4 years ago
I WILL GIVE BRAINLEST AND A LOAD OF POINTS
Anton [14]

Answer:

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3 0
3 years ago
The value of n is both 5 times as much as the value of m and 36 more than the value of m. What are the values of n and m? Explai
tia_tia [17]
N = 5m
n = m + 36

since n is equal to both the expression in m we can say:-

5m = m + 36
4m=36

m = 9 

and n = 5*9 = 45

3 0
3 years ago
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