3 years ago

Find the missing angle

Mathematics

2 answers:

netineya [11]3 years ago

4 0

Answer:

129

Step-by-step explanation:

Tomtit [17]3 years ago

3 0

Answer:

129

Step-by-step explanation:

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the measure of two complimentary angles is in the ratio 1:9. what are the degree measures of the two angles

marusya05 [52]

$x+9x=90\\
10x=90\\
x=9\\
9x=9\cdot9=81$

9 and 81.

4 0

3 years ago

A regular square pyramid has base edge b, height h, and slant height l. Three expressions give the surface area, A, of this pyra

S_A_V [24]

Answer:

1/3 . Abase . height

Step-by-step explanation:

Please find attached the complete question

a square pyramid is a pyramid that has a square base.

total surface area measures the total area of the surfaces of an object

the formula 1/3 x Area of the base x height is used to calculate the volume of the pyramid and not the surface area

7 0

3 years ago

What is the circumference of the circle? Use 3.14 for Pi. A circle with radius 6.4 centimeters. 20.096 cm 40.192 cm 200.96 cm 40

r-ruslan [8.4K]

Answer: 40.192 cm

Step-by-step explanation:

the formula for circumference is $2\pi r$

In this case we are using 3.14 for pi and the radius is 6.4

$(2)(3.14)(6.4)\\(6.28)(6.4)\\40.192$

8 0

3 years ago

2x + y = 3

Leto [7]

It should be B 3y=5 hope I'm right.

3 0

3 years ago

Please help me on this one

devlian [24]

Answer:

option a

step-by-step explanation:

To rationalize the expresion we need to multiply and divide the expression by the conjugate of the denominator as follows

sqrt(9) / (sqrt(3) + sqrt(x)) = sqrt(9) ((sqrt(3) - sqrt(x)) / ((sqrt(3) + sqrt(x))(sqrt(3) - sqrt(x)))

3((sqrt(3) - sqrt(x)) / (3 - x)

So the result es option a:

(3sqrt(3) - 3sqrt(x)) / (3 - x)

4 0

3 years ago