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NeTakaya
3 years ago
6

Write (x+1)(x+2) without parentheses

Mathematics
1 answer:
madreJ [45]3 years ago
8 0

Answer:

2x + 3

Step-by-step explanation:

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What is 12.5% of 10 kg in grams​
Anastasy [175]

Answer:

1250 g

Step-by-step explanation:

12.5% of 10 kg

12.5% of 10000 g

.125 of 10000 g

.125 * 10000 g

1250 g

6 0
3 years ago
Read 2 more answers
Help me please?? solve using proportion
gulaghasi [49]

9514 1404 393

Answer:

  2 1/2 cups

Step-by-step explanation:

A proportion says the ratio of one thing to another is the same for different amounts. Here, we want cups, so we can use the proportion ...

  cups/people = 2/12 = x/15 . . . . . where x is the number we want to find

Multiplying by 15 gives ...

  x = 15(2/12) = 5/2 = 2 1/2

You will need 2 1/2 cups of zucchini to feed 15 people with the same recipe.

6 0
3 years ago
If Rebecca reads 2pages per minute, how many pages could she read in 2 1/2 hours?
Mamont248 [21]

Answer:

300

Step-by-step explanation:

2*60 for 1 hr

120*2 to find two hrs

2*30 for 1/2 hr

add

3 0
3 years ago
We are standing on the top of a 320 foot tall building and launch a small object upward. The object's vertical altitude, measure
STALIN [3.7K]

Answer:

The highest altitude that the object reaches is 576 feet.

Step-by-step explanation:

The maximum altitude reached by the object can be found by using the first and second derivatives of the given function. (First and Second Derivative Tests). Let be h(t) = -16\cdot t^{2} + 128\cdot t + 320, the first and second derivatives are, respectively:

First Derivative

h'(t) = -32\cdot t +128

Second Derivative

h''(t) = -32

Then, the First and Second Derivative Test can be performed as follows. Let equalize the first derivative to zero and solve the resultant expression:

-32\cdot t +128 = 0

t = \frac{128}{32}\,s

t = 4\,s (Critical value)

The second derivative of the second-order polynomial presented above is a constant function and a negative number, which means that critical values leads to an absolute maximum, that is, the highest altitude reached by the object. Then, let is evaluate the function at the critical value:

h(4\,s) = -16\cdot (4\,s)^{2}+128\cdot (4\,s) +320

h(4\,s) = 576\,ft

The highest altitude that the object reaches is 576 feet.

6 0
4 years ago
Ok now that the image works did I do this right?
Arturiano [62]
Yess!! That’s how u do it && continue to work hard!
7 0
3 years ago
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