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3 years ago

The total length of a motor cycle race is

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

beacause all you have to do is subtract

3 : 2

4. 4

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Please help to answer this question I’m really confused

igor_vitrenko [27]

Answer:

It would be B!

Step-by-step explanation:

D has an obtuse angle, so it can be eliminated.

C has angles that are not vertical, but rather adjacent. Same goes for A!

Hope this helps!

3 0

3 years ago

Write an equation in slope-intercept form for the line with slope 7 and v-intercept -6.

vredina [299]

Use y = mx + b

m = 7

b = -6

The answer: y = 7x - 6

6 0

3 years ago

Complete the pattern ____,_____,____,0,2,4,6

Dmitriy789 [7]

-6,-4,-2 is the answer

3 0

3 years ago

1. Bob tried to answer the following question by finding the missing angle and rounding the answer to the nearest degree.

iren2701 [21]

Answer:

Part 1)

Bob's mistake was to have used the cosine instead of the sine

The measure of the missing angle is $53.13\°$

Part 2) The surface area of the pyramid is $288\ cm^{2}$

Step-by-step explanation:

Part 1)

Let

x----> the missing angle

we know that

In the right triangle o the figure

The sine of angle x is equal to divide the opposite side angle x to the hypotenuse of the right triangle

$sin(x)=\frac{16}{20}$

$x=arcsin(\frac{16}{20})=53.13\°$

Bob's mistake was to have used the cosine instead of the sine

Part 2) we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces

$SA=b^{2}+4[\frac{1}{2}(b)(h)]$

where

b is the length side of the square

h is the height of the triangular lateral face

In this problem

$h=b/2$ -------> by an 45° angle

$b=2h$

$sin(45\°)=\frac{h}{6\sqrt{2}}$

$h=6\sqrt{2}(sin(45\°))=6\ cm$

Find the value of b

$b=2(6)=12\ cm$

Find the surface area

$SA=12^{2}+4[\frac{1}{2}(12)(6)]=288\ cm^{2}$

3 0

4 years ago

Pls help me!!!! (question is in the picture)

Svetllana [295]

The fourth answer is correct. When dividing by x to the half (aka square root of x), divide every power of x by two.

7 0

3 years ago