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3 years ago

1. What number will make this expression a perfect square trinomial? Show your work. x2 - 6x +

Mathematics

2 answers:

Leni [432]3 years ago

7 0

Answer:

Step-by-step explanation:

Take half of b (6/2=3)

Square it (3^2=9)

exis [7]3 years ago

3 0

Answer:

.......

Step-by-step explanation:

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crimeas [40]

13²-5²=144

=12

26²-24²=100

=10

13²-12²=25

3 0

2 years ago

Find the value of y in the solution to the system of equations shown.<br> y= 12x+7<br> y=-6x+25

padilas [110]

Answer: The required value of y is 19.

Step-by-step explanation: We are given to find the value of y in the solution to the following system of equations :

$y=12x+7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\y=-6x+25~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

Comparing equations (i) and (ii), we get

$12x+7=-6x+25\\\\\Rightarrow 12x+6x=25-7\\\\\Rightarrow 18x=18\\\\\Rightarrow x=\dfrac{18}{18}\\\\\Rightarrow x=1.$

From equation (i), we get

$y=12\times1+7=12+7=19.$

Thus, the required value of y is 19.

4 0

4 years ago

Read 2 more answers

Evaluate x/y for x equals 3/10 and y equals 4/5

Over [174]

Answer:

x/y = 3/8

Step-by-step explanation:

y = 4/5 = 8/10, so ...

x/y = (3/10)/(8/10) = 3/8

_____

One way to divide fractions is to make them have the same denominator. Then their ratio is the ratio of their numerators.

8 0

4 years ago

PLZZZZZZ NEED HELP!!!!!!!

fredd [130]

Answer:

angle B=120º

Step-by-step explanation:

15+45=60

We know that all triangles have angle measures that equal 180

So 180-60=120

angle B=120º

7 0

3 years ago

Consider this equation:

icang [17]

Answer:

d = (2z + 3)/(p) - z

5 0

3 years ago

1. What number will make this expression a perfect square trinomial? Show your work. x2 - 6x +​

1. What number will make this expression a perfect square trinomial? Show your work. x2 - 6x +