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3 years ago

How do i Simplify: b^8 b^4

1 answer:

7 0

It looks like they're multiplied, then you can simply add the exponents,

b⁸ * b⁴ = b⁸⁺⁴ = b¹²

remember, b⁸=b*b*b*b*b*b*b*b and b⁴=b*b*b*b

so b⁸ * b⁴ = b*b*b*b*b*b*b*b * b*b*b*b = b¹²

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Please work out the shapes question pls!!!

Contact [7]

Here's what I got for the first question.

Did you want answers for the second one? I couldn't read that part of the image very well, if you did.

7 0

3 years ago

Ii dont understand how to solve a system of linear equations using the substitution method

alina1380 [7]

So 8x-7y=-7
-16+12x=14
you can simplify the sceon equation
-8+6x=7
add 8 to both sides
6x=15
divide by 6
x=15/6
subssitute
8(15/6)-7y=-7
120/6-7y=-7
20-7y=-7
subtract 20
-7y=-27
divide by -7
y=27/7

x=15/6
y=27/7

8 0

4 years ago

The directrix and vertex of a parabola are shown on the graph. What is the vertex form of the equation for the associated parabo

tresset_1 [31]

Considering the directrix and vertex given in the graph, the equation of the parabola is:

B. $x = -\frac{1}{4}(y + 2)^2 - 2$

<h3>What is the equation of a parabola given it’s vertex?</h3>

The equation of a quadratic function, of vertex (h,k), is given by:

(y - k)² = 4p(x - h).

In which the directrix is the line x = h - p.

Looking at the graph, we have that:

The vertex is (-2,-2), hence h = k = -2.

The directrix is x = -1, hence -1 = -2 - p -> p = -1.

Thus the equation is:

(y + 2)² = -4(x + 2).

Writing x as a function of y:

B. $x = -\frac{1}{4}(y + 2)^2 - 2$

More can be learned about the equation of a parabola at brainly.com/question/17987697

#SPJ1

8 0

2 years ago

PLS HELP DUE TODAY TEST

Inessa05 [86]

Answer:

20+70=90

Step-by-step explanation:

8 0

3 years ago

Find the 120th term of the following sequence <br> 7, 14, 21, ...<br> a120 =

dlinn [17]

Answer:

840

Step-by-step explanation:

There is a common difference d between consecutive terms, that is

d = 14 - 7 = 21 - 14 = 7

This indicates the sequence is arithmetic with n th term

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 7 and d = 7 , thus

$a_{120}$ = 7 + (119 × 7 ) = 7 + 833 = 840

4 0

3 years ago