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3 years ago

Plz solve ill give brainliest to the first correct answer

Mathematics

2 answers:

Anastasy [175]3 years ago

6 0

Answer:

x=-3

Step-by-step explanation:

Whitepunk [10]3 years ago

6 0

Answer:

-3

Step-by-step explanation:

......................

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6. A motorcycle is moving at a constant speed of 40 miles/hour. How long does it take to travel

tatuchka [14]

Answer:

1.625 hours

Step-by-step explanation:

The equation is

d = rt where d is distance r is rate and t is time

65 = 40 *t

Divide each side by 40

65/40 = t

1.625 hours = time

4 0

3 years ago

Find the number that belongs in the green box. round your answer to the nearest tenth.

Leona [35]

Step-by-step explanation:

By Sine Rule, 13/sin96° = x/sin25°.

Hence, x = 13sin25°/sin96° = 5.5.

8 0

3 years ago

An 8-sided die is formed when two square pyramids are attached by their bases. The perimeter of the base shape is 6 centimeters.

lawyer [7]

Answer:

7.5cm²

Complete question:What is the surface area of the 8-sided figure?

Step-by-step explanation:

Consider the half of the 8-sided die i.e the pyramid ABCDE:

As the base is 6 of the perimeter, so each side of the base is 6/4=3/2

Now, the distance between the tallest points is 2 cm, so the height of Pyramid ABCDE is 1 cm.

Considering the right triangle EOM:

EO=1, OM= 3/4 (it is half of AB=3/2) and EM is the hypothenuse, so by the pythagorean theorem length of EM is

$\sqrt{1+ ( \frac{3}{4} )^{2} }= \sqrt{1+ \frac{9}{16} }= \sqrt{ \frac{25}{16} }= \frac{5}{4} (cm)$

5. So side EBC has area

$\frac{1}{2}BC*EM= \frac{1}{2}* \frac{3}{2}* \frac{5}{4}= \frac{15}{16}$

6. The total area is 8*Area(EBC)= $8* \frac{15}{16}= \frac{15}{2}=7.5 ( cm^{2} )$

3 0

3 years ago

Graph the System and find the point of intersection. 2 and 3x + y = 8 3

LUCKY_DIMON [66]

Google is always a option.

5 0

3 years ago

Compare the two ratios is 6 : 15 less than 30 : 80 or greater than?

romanna [79]

Work:
6/15 = x/1
To get from 15 to 1, you have to divide by 15. So, to make an equal field, divide 6 by 15.

6 : 15 is the same as 2 : 5 or 0.4.

30/80 = x/1
To get from 80 to 1, you have to divide by 80. So, to make an equal field, divide 30 by 80.

30 : 80 is the same as 3 : 8 or .875.

Comparing the two, 30 : 80 is greater than 6 : 15.

Hope this helps. Have a good day.

6 0

3 years ago

Read 2 more answers