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const2013 [10]
2 years ago
5

I need help understanding how to get the answer.

Mathematics
1 answer:
const2013 [10]2 years ago
5 0

Answer:

-157.87

Step-by-step explanation:

1) the rules are:

log_a(bc)=log_ab+log_ac;

and

log_ab^c=c*log_ab.

2) according to the rules above:

log_7(yz^8)=log_7y+8log_7z=-6.19-8*18.96=-157.87.

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Can someone help me answer this? Thanks! :)
sladkih [1.3K]

Answer:

\pi

Step-by-step explanation:

\int _{-2}^2\:\left(x^3cos\:(\frac{x}{2})+\frac{1}{2}\right)\sqrt{4-x^2}dx\\

7 0
3 years ago
Connor has completed 4 test questions, which is 25% of the total amount of test questions. How many test questions are there in
solmaris [256]

Answer:

16

Step-by-step explanation:

There are 4, 25% in 100% and if 4 is 25% then 4x4=16

4 0
3 years ago
Read 2 more answers
The area of a square patio is 225 square feet. What is the perimeter of the patio
Elanso [62]
STEP 1:
find the length of the sides of the square

AREA FORMULA (for a square)
x= side

A=x^2

225=x^2
take square root of both sides

15 feet= x


STEP 2:
find perimeter

PERIMETER FORMULA (for a square)

x= side of square

P= 4x
use x value from step 1

P= 4(15 ft)
P= 60 feet


ANSWER: The perimeter is 60 feet.

Hope this helps! :)
5 0
3 years ago
For the straight line defined by the points (4, 53) and (6, 87), determine the slope and y-intercept. M= ? (slope) b= ? (y-inter
valkas [14]
(Look at photo for explanation for slope)
Slope/m is 17
After graphing both points and making a line, you will find that the y-intercept/b crosses at -15

So,
Slope/m = 17
Y-intercept/b = -15

3 0
3 years ago
Solve for x.
Snezhnost [94]
L*w=20, so l=20/w
l=2w+3

20/w=2w+3
20=2w^2+3w
2w^2+3w-20=0

Slip and slide
w^2+3w-40
(w+8)(w-5)
(w+8/2)(w-5/2)
(w+4)(2w-5)

w= -4 or 5/2, but since width must be positive, it is 5/2

(5/2)*l=20
l=8

Final answer: Length= 8, Width= 5/2
6 0
3 years ago
Read 2 more answers
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