All categories

3 years ago

4b + 5b I'm not sure if I did it right

Mathematics

2 answers:

n200080 [17]3 years ago

5 0

It’s 9b it’s just 4+5 with the b

Nataliya [291]3 years ago

4 0

Answer:

9b is the answer.

Step-by-step explanation:

You ignore the b, then you do 4+5 and add the b at the end.

If you need anymore help let me know.

You might be interested in

A banana contains 105 calories. Last week, brendan and lea ate a total of 14 bananas. How many calories does this represent?

xeze [42]

Answer:

1470

Step-by-step explanation:

Multiply

3 0

2 years ago

Does anybody know it part 2

makvit [3.9K]

Answer:

x = 33

Step-by-step explanation:

(x + 13) + (4x + 2) = 180

x + 13 + 4x + 2 = 180

5x + 15 = 180

5x = 180 - 15

5x = 165

x = 165/5

x = 33

Check:

(x + 13) + (4x + 2) = 180

(33 + 13) + 4(33) + 2 = 180

46 + 132 + 2 = 180

46 + 134 = 180

4 0

3 years ago

Derive the equation of the parabola with a focus at (_5, 5) and a directrix of y = -1.

mars1129 [50]

Answer: Option D is correct.

Step-by-step explanation:

Since we have given that

focus = (-5,5)

and a directrix y= -1

Since, equation of parabola in this case will be

$(x-h)^2=4.a(y-k)$

Now, here

$y=k-a=-1\\\\\text { focus =(h,k+a)}\\\\\text{So,} k+a=5\\\\\text{ by solving these two equation , we get }\\\\a=3\text{ and } k=2$

So equation will be

$(x+5)^2=4\times 3(y-2)\\\\(x+5)^2=12(y-3)\\\\y=\frac{1}{12}(x+5)^2+2$

So, option D is correct .

4 0

2 years ago

Read 2 more answers

18 subtracted from a number is 35

kogti [31]

X - 18 = 35. 53 is x, since 53 - 18 = 35.

3 0

2 years ago

Read 2 more answers

Find an ordered pair x-2y=4

Vesnalui [34]

Answer:

Step by Step:
x-2y=4
+2y +2y
x=-2y+4

x-2y=4
-4 -4
x-2y-4=0
+2y +2y
x-4=2y
Divid by 2
1/2x-2= y

x=-2y+4
x=-2(1/2x-2)+4
x=-x+4+4
x=-x+8
+x +x
2x= 8
x=4

y=1/2x-2
y=1/2(4)-2
y=2-2
y=0
(4,0)

5 0

2 years ago

Read 2 more answers

4b + 5b I'm not sure if I did it right ​

4b + 5b I'm not sure if I did it right