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Rasek [7]
2 years ago
15

Dylan started to write the expanded form of 3,687.89 as shown below.

Mathematics
2 answers:
ELEN [110]2 years ago
4 0

Answer:

Answer: A. 8×100+8×(1100)

Step-by-step explanation:

before removing the 0 from 1000, we got to add 100 and 1,000. then we remove the 0.

hope this helped.

Mnenie [13.5K]2 years ago
4 0
The correct answer is A





Brainliest?
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What times what equals 30 but add to get 40?
musickatia [10]
Lets call those two unknown numbers a, b and write the info in the problem as equations:
a*b = 30
a + b = 40
lets solve for a in the second equation and substitute in the first:
<span>a + b = 40
</span>a = 40 - b
therefore:
<span>a*b = 30
</span>(40 - b)b = 30
40b - b^2 = 30
b^2 - 40b + 30 = 0
if we apply the general quadratic equation to solve we have:
b = (40 +- √(1600 - 120))/2
b = (40 +- √(1480<span>))/2
</span>b = (40 +- 38.47)/2
There are two solutions:
<span>b1 = (40 + 38.47)/2
</span><span>b1 = 39.24
b2 = (40 - 38.47)/2
</span>b2 = 0.765
lets use the second solution <span>b2 = 0.765, and substitute in the first equation to find a:
</span><span>a*b = 30
</span>a*0.765 = 30
a = 30/0.765
a = 39.216
so the numbers are 39.216 and 0.765
5 0
3 years ago
Read 2 more answers
In math the words transformation means to blank, blank, blank, or blank a figure
alukav5142 [94]

Answers:

  • Translate
  • Reflect
  • Rotate
  • Dilate

This can be stated in any order

============================================

Explanation:

In geometry, a translation is where you slide a point or figure some distance left, right, up or down.

A reflection will mirror a point over a line, or you could mirror a point over another point.

A rotation turns a point around a fixed center point.

A dilation scales the figure to be larger or smaller.

The first three transformations mentioned (translation, reflection, rotation) are known as rigid transformations. They keep the figure the same size and shape. A dilation will keep the same shape, but the size will be different, so the before and after figures are not congruent when you apply a dilation.

7 0
3 years ago
Susan enlarged to scale a rectangle with a height of 4 cm and length of 11 cm on her computer. The length of the new rectangle i
den301095 [7]
First we find the scale factor. It went from a 11 cm length to 16.5 cm length....so we have to find out what to multiply 11 by to get 16.5.
11x = 16.5
x = 16.5 / 11
x = 1.5
and since we multiplied 11 * 1.5 = 16.5, then we have a scale factor of 1.5...so we now multiply the height of 4 by 1.5.
So the new height is gonna be : 4 * 1.5 = 6 cm <==
4 0
3 years ago
A boy sent a telegram which contains 36 words to his mother if the first 12 words cost $20 and each additional word cost 2$ per
aliina [53]

Answer:

(d) 60 kobo

Step-by-step explanation:

36 divided by 12 = 3

3 x 20 = 60

Hope this helps!

4 0
3 years ago
What is the x and y intercept
Olenka [21]
Look carefully at the point where the 2 lines intersect.  From that point, look straight down to the x-axis; you'll see that the x-value there is 50.  Similarly,
starting at the intersection, look straight left to the y-axis; the y-value there is 11.

Thus, the coordinates of the intersection (i. e., the solution) are found in (50,11).
5 0
3 years ago
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