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V125BC [204]
3 years ago
7

Y to the 3rd power times y to the negative 5th power

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0
Y^3 * y^5 = y^8. you add the exponents
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Julia asked to evaluate the expression four to the power of -3 before she can join her classmates outside. She decides to use th
vesna_86 [32]

Negative exponents work like this:

a^{-b}=\dfrac{1}{a^b}

So, you have

4^{-3}=\dfrac{1}{4^3}=\dfrac{1}{64}

This number is less than 1, so she will play tennis.

3 0
3 years ago
Factorise <br> 3xy2− 6x2y+ 12xy
d1i1m1o1n [39]

Answer:

terms=3xy2,-6x2y,12xy

factor=3xy2=3,x,y2

=-6x2y=-6,x2,y

=12xy=12,x,y

Step-by-step explanation:

Pls mark as branliest thanks.

7 0
3 years ago
Read 2 more answers
Ixl p.2 geometry <br> Help me get this to a 70 please
stepladder [879]

Answer:

  3 meters

Step-by-step explanation:

First, you figure out if the triangles are similar. Then, you figure out what the corresponding parts are. Use the relation that corresponding sides are proportional in order to write an equation for q. Solve it.

The angles in ΔDCE are marked the same as the angles in ΔDFB. We have named these triangles in order by the right angle, the angle with 1 arc, and the angle with 2 arcs. The lengths we are given are DC, DF, and DB, and we want to find length DE.

Arranging our equation so the unknown value is in the numerator of a proportion statement, we have ...

  DE/DB = DC/DF

  q/12 = 4/16

  q = 12(4/16)

  q = 3 . . . . meters

4 0
2 years ago
LESSON 3.2 (C) - Rates of Change and Slope
frozen [14]

Answer:

1. Slope = -2

2. Slope = ⁴/3

3. Slope = -3

4. Slope = 1

Step-by-step explanation:

1. Using two points on the line, (0, 0) and (-1, 2):

slope = \frac{y_2 - y_1}{x_2 - x1} = \frac{2 - 0}{-1 - 0} = \frac{2}{-1} = -2

2. Using two points on the line, (0, 0) and (3, 4):

slope = \frac{y_2 - y_1}{x_2 - x1} = \frac{4 - 0}{3 - 0} = \frac{4}{3}

3. Using two points on the line, (0, 0) and (-1, 3):

slope = \frac{y_2 - y_1}{x_2 - x1} = \frac{3 - 0}{-1 - 0} = \frac{3}{-1} = -3

4. Using two points on the line, (0, 0) and (2, 2):

slope = \frac{y_2 - y_1}{x_2 - x1} = \frac{2 - 0}{2 - 0} = \frac{2}{2} = 1

3 0
2 years ago
A bag contains 26 letters and 9 numerals. Aubrey draws two cards from the bag. What is the probability that she draws 2 numerals
Leya [2.2K]
\frac{9}{26+9}*\frac{9-1}{26+(9-1)}\\\frac{9}{35}*\frac{8}{34}\\\frac{72}{1190}\\\frac{36}{595}

36/595
7 0
3 years ago
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