2 years ago

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Mathematics

1 answer:

Goshia [24]2 years ago

7 0

Answer:

Step-by-step explanation:

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What is the value of x

mihalych1998 [28]

Answer:

Step-by-step explanation:

x+15+x+115+90=380 degree(sum of interior angles of four angles is 360 degree)

2x+220=360

2x=360-220

x=140/2

x=70 degree

7 0

3 years ago

Can someone help me pls pls help with this question

True [87]

Answer:

Step-by-step explanation:

The mean is 11,000

8 0

2 years ago

The diameter of a semicircle is 6 miles. What is the semicircle's perimeter?

koban [17]

Answer:

$15.42mi$

Step-by-step explanation:

Use the formula for a semicircle's perimeter.

$P=\frac{1}{2}\pi *d+d$

Plug in 6 for d.

$P=\frac{1}{2}\pi*6+6$

Let's use 3.14 for $\pi$ , just to make it easier, but of course, if it states to round it to something else, just plug in that many values for $\pi$ .

$P=\frac{1}{2}(3.14)*6+6 \\ \\ P=1.57*6+6 \\ \\ P=9.42+6 \\ \\ P=15.42$

5 0

3 years ago

Read 2 more answers

By rounding to 1 significant figure, estimate the value of 48.7 x 61.2<br> 11.3

11111nata11111 [884]

Answer : 263

Rounded (1 s.f ) = 300

7 0

3 years ago

A helicopter hovers 500 feet above a small island. The figure shows that the angle of

Tamiku [17]

Answer:

435 ft

Step-by-step explanation:

Reference angle = <P = 49° (angle of elevation)

Opposite side = 500 ft

Adjacent side = d = ?

Apply trigonometric function, TOA.

This:

Tan P = opp/adj

Tan 49 = 500/d

d × Tan 49 = 500

d = 500/Tan 49

d = 434.643369 ≈ 435 ft (to the nearest foot)

6 0

2 years ago