Ask question

Ask question

All categories

3 years ago

8

Evaluate the Expression when b=3

la1" title=" {b}^{2} - 6b - 5" alt=" {b}^{2} - 6b - 5" align="absmiddle" class="latex-formula">

1 answer:

meriva3 years ago

5 0

Now let’s evaluate this down if b=3 then you do 3x3 because b is squared which equals 9 then we do 6b which is 18, so 9-18 is (-9) then we do -9 - 5 which is -14

You might be interested in

Solve by factoring and i need the steps too !!

IrinaVladis [17]

Answer:

$x_1 = -8\\\\x_2 = 8$

Step-by-step explanation:

To solve this problem use the formula "<u><em>Difference of squares</em></u>":

$(a + b) (a-b) = a ^2 -b ^ 2$

In this problem we have the following equation

$x ^ 2 -64 = 0$

This we can write it in the following way

$x ^ 2 - 8 ^ 2 = 0$

Then if a = x and b = 8 then:

$x ^ 2 - 8 ^ 2 = (x+8)(x-8) = 0$

Then the product of both factors is equal to zero when:

$x+8 = 0\\\\x =-8$

Or

$x -8 = 0\\\\x =8$

8 0

4 years ago

Cindy bought 1/4 pound of sliced chicken and 7/4 pound of sliced turkey about how did she have in all

yKpoI14uk [10]

Just add the two fractions together 1/4 + 7/4 and you will get 2 so it would be 2 pounds all together

3 0

4 years ago

Each week Jessica earns $12 doing yard work. She saves 40% of the money she makes. A. How much does she save each week? B. How m

Oliga [24]

She saves 4.8$ and she spends 7.20$ each week

7 0

3 years ago

Solve for x. will give brainliest answer to the one i like most<br> 2x-5=7

aliina [53]

2x-5= 7
Add 5 on both sides
2x= 12
Divide by 2
X= 6

3 0

4 years ago

Read 2 more answers

A mountain Climber Climbed down a cliff 1/4 mile at a time.HE did this five time in one day.How many miles did he climb down

nikklg [1K]

1/4 to 5 times
5x1/4 miles
5/4 miles

4 0

3 years ago

Read 2 more answers