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inessss [21]
4 years ago
5

The radius of a sphere-shaped balloon increases at a rate of 2 centimeters (cm) per second. If the surface area of

Mathematics
1 answer:
djverab [1.8K]4 years ago
5 0

Answer:

7 seconds

Step-by-step explanation:

The radius of a sphere-shaped balloon increases at a rate of 2 centimeters (cm) per second.

surface area of the completely inflated balloon is 784 cm²

SA=4r²

784= 4r²

784/4= r²

196 = r²

14cm = r

Yhe radius of the complete inflated balloon is 14cm

If the ball inflate at the rate of 2 cm per seconds

Then it took 14/2 = 7 seconds to inflate fully

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ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
Step2247 [10]

Answer:

D

Step-by-step explanation:

Like I said last time, since the graph is moved up by 3 units, the answer is choice D. Hope this helps!

6 0
3 years ago
Suppose AB = 10 cm, BC = 9 cm, AC = 11 cm, DE = 11 cm, and DF = 9 cm. What else do you need to know to prove that the two triang
Makovka662 [10]
Two triangles must be congruent by SSS when their all sides would be equal.
So, BC = DF
AC = DE
Then, AB = EF = 10

In short, Your Answer would be Option B

Hope this helps!
8 0
3 years ago
Lena has drawn a line from one corner of a rectangle to the opposite corner the lines dividing each of the right angles and two
Stolb23 [73]

Answer:

Both are Scalene right angle triangle  90 °, 58 ° 32°

We know the length of the first triangle has different lengths, just like the other triangle is the same and this has different lengths. This is why we call them scalene right angles, as they both have 90 ° on the corners that went untouched within the rectangle.

Step-by-step explanation:

Lena has drawn a line from one corner of a rectangle to the opposite corner. The lines dividing each of the right angles, being two angles, each measure 32 and 58 which David best describes the resulting triangles.

If two angles are opposite ends one is 32 degree, the other is 58-

Then either triangles for two angles total 90 each and therefore being a rectangle show the rectangle had regular 90 degree corners before being divided. We cna check this as after lines being drawn corner end to its corner opposite we see each have a supplementary angle of 32 or 58 = 90 and 90 should we draw a line from the corner exterior to make a straight line appear longer on each base or its parallel base or top on the opposite corner. As long as they are drawn parallel exterior corner lines and where 90 degree is highlighted looking like L's on each too.

if the triangles are 32 + 58 either end then their 3rd angle on each triangle will be 90 where we call this triangle simply scalene right angle triangle as no sides are the same length within the triangle.

8 0
4 years ago
A line passes through the points (7, 8) and (–7, 10). What is its equation in slope-intercept form?
iris [78.8K]

Answer:

y=-\frac{1}{7}x+9

Step-by-step explanation:

The slope-intercept formula is:

y=mx+b

y= keep as variable

m= slope of the line

x= keep as variable

b= y-intercept of the line.

Hope this helped!

Brainliest please!

4 0
3 years ago
saima makes 14 muffins to give to her friends she wants to give 2 muffins to each friends at her party​
IgorLugansk [536]

Answer:

7 friends

Step-by-step explanation:

14 divided by 2

8 0
4 years ago
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