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3 years ago

PLZZZ HELPPPP ILL MARK BRAINLIEST TO FIRST AND CORRECT ANSWER THAT HAS WORK AND A THX TO SECOND AND CORRECT ANSWER.

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

3 0

Answer:

3.9 - C

Step-by-step explanation:

This forms a triangle with a base of 2.5 and a height of 3.

Using the Pythagorean Theorem, 2.5^2 + 3^2 = c^2

This gives you the answer 3.91.

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What is 6 5/7 rounded around the nearest whole number

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Answer:

Step-by-step explanation:

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2 years ago

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Riding a proportion of 15 is 1 and a half percent of what number

skad [1K]

Answer:

1000

Explanation:

15=1.5%

1000=100%

10=1%

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7 0

3 years ago

15. In the drawing, find the perimeter of triangle BIS.<br>

Nesterboy [21]

Answer:

29.86 units

Step-by-step explanation:

In the triangle BIS, IT is the bisector of angle BIS,

$BI \cong ST.... (given) \\$

Let BI = ST = x... (1)

By angle bisector property of a triangle, we have:

$\frac{BI}{IS} = \frac{BT}{ST}.... (2)\\\\\frac{x}{12} = \frac{4}{x}\\\\x\times x = 12\times 4\\\\x^2 = 48\\\\x=\sqrt{48}\\\\x = 6.92820323\\\\x = 6.93\\$

Therefore,

BI = ST =6.93

Perimeter of triangle BIS

= BI + IS + ST + BT

= 6.93 + 12 + 6.93 + 4

= 29.86 units

3 0

3 years ago

Each side of a square is increasing at a rate of 6cm/s. At what rate is the area of the square increasing when the area of the s

diamong [38]

Area of a square = length²
A = x²
16 = x²; x = 4
dA/dx = 2x cm²/s
dx/dt = 6 cm/s
Using chain rule:
dA/dt = dA/dx * dx/dt
dA/dt = 2x * 6
dA/dt = 12x
At x = 4,
dA/dt = 12(4) = 48 cm²/s

7 0

3 years ago

Point O is the center of the given circle. What is the measure of yz?

jasenka [17]

Answer:

B. 108°

Step-by-step explanation:

<u>XO = YO equal as radius, therefore</u>

m∠X = m∠Y = 54°

∠YOZ is exterior angle of the triangle OXY and equal to sum of non-adjacent interior angles

m∠YOZ = 54° + 54° = 108°

Arc YZ is 108°

Correct option is B

8 0

3 years ago