All categories

3 years ago

Andrew estimated the weight of his dog to be 60 lb. The dog’s actual weight was 68 lb.

1 answer:

5 0

Correct - wrong percentage
-------------------- = ---------------
wrong    100
68 - 60    x
--------- = ----
60 100
8   x
---- = ----
<span>60 100
</span>800    60x
----- = ----
60 60
13.3% = x

You might be interested in

This graph shows the costs of purchasing two types of laundry detergent.

Neko [114]

B) Detergent B is less expensive than Detergent A

6 0

3 years ago

Read 2 more answers

Find the slope from the graph below

larisa [96]

You go up 4 times and go to the left 2 times so the slope would be 4/-2

7 0

2 years ago

28. Daniel uses 18 pints of water to fill 8 bottles. He

nekit [7.7K]

Answer:

Step-by-step explanation:

to find the answer to this you sould divide the amount of pints by the number of bottles

18/8

which is also 2 2/8

so the answer is b

7 0

2 years ago

I need to get the left side to equal the right side. Keeping the right side alone and not changing it.

likoan [24]

<u>To prove the trigonometric equation:</u>

$\sin ^{3} x+\cos ^{3} x=(\sin x+\cos x)(1-\sin x \cos x)$

$RHS=(\sin x+\cos x)(1-\sin x \cos x)$

We know that $\sin^2x +\cos^2x=1$ , substitute this in place of 1.

$=(\sin x+\cos x)(\sin^2x +\cos^2x-\sin x \cos x)$

Multiply each term of the first term with each term of the 2nd term.

$=\sin^3x + \sin x \cos^2x-\sin^2 x \cos x+\cos x \sin^2 x + \cos^3 x-\sin x\cos^2 x$

Group like terms together.

$=\sin^3x +( \sin x \cos^2x-\sin x\cos^2 x)+(\cos x \sin^2 x-\sin^2 x \cos x) + \cos^3 x$

$=\sin^3x +( 0)+(0) + \cos^3 x$

$=\sin^3x + \cos^3 x$

= LHS

RHS = LHS

$\sin ^{3} x+\cos ^{3} x=(\sin x+\cos x)(1-\sin x \cos x)$

Hence proved.

7 0

3 years ago

Given a normal distribution with a mean of 128 and a standard deviation of 15, what percentage of values is within the interval

tatyana61 [14]

Answer:

E. 99.7%

Step-by-step explanation:

Calculate each z-score.

z = (x − μ) / σ

z = (173 − 128) / 15

z = 3

z = (x − μ) / σ

z = (83 − 128) / 15

z = -3

You can use a z-score table, or use the empirical rule.

P(-3 < z < 3) = 99.7%.

6 0

3 years ago