3 years ago

Deanna estimated the product of 6.45 and 10.2. How does the estimate compare to the exact product?

1 answer:

5 0

The estimate should be 60 (because you round down the 6.45 and 10.2 to 6 and 10). Since you rounded down, the actual product will be greater than the estimate.

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A positive integer is 28 more than 3 times another. Their product is 580. Find the two integers

Degger [83]

10 and 58

10*58=580

10*3+28=58

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3 years ago

In ΔLMN, the measure of ∠N=90°, the measure of ∠M=17°, and MN = 20 feet. Find the length of LM to the nearest tenth of a foot.

andrey2020 [161]

20.9 ft
This is a right triangle trigonometry question because N is 90 degrees. MN is adjacent to M and LM is the hypotenuse. Adjacent any hypotenuse use the cosine function.
$cos \theta = \frac{adj}{hyp}$
plug in known values
$cos(17) = \frac{20}{x}$
switch cos(20) and x using the products property
$x = \frac{20}{cos(17)}$
plug into calculator to get 20.9 ft

3 0

3 years ago

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The value of a new mountain bike declines exponentially. If the bike costs $5000 when it is new and loses 10% of its value each

Amiraneli [1.4K]

Answer:

1743.39

Step-by-step explanation:

5000(1-0.1)^10 is the function

6 0

2 years ago

Which inequality represents this sentence?

leonid [27]

I think your first answer is correct

5 0

2 years ago

Please see attached photo for problem from my homework set.

Reika [66]

Answer: (x - 1)(x - 23)

Step-by-step explanation:

First, we can factor the x² part:

(x)(x)

Next, we will look at the -24x and +23

-> We need two numbers that multiply to 23 and add to -24

-> 23 is a prime number, so we will use 1 and 23

For -24, 1 and 23 must be added together. Since a negative times a negative is a positive, and a negative plus a negative is a positive, we will turn them into -1 and -23.

This gives us a final answer of:

(x - 1)(x - 23)

7 0

2 years ago

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