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4 years ago

How to solve triangles inside of circles

Mathematics

1 answer:

MaRussiya [10]4 years ago

3 0

Im sorry but is there more to the question

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Solve the system 8y-5z=23 3y-2z=6<br><br> 100 POINTS

Hatshy [7]

Answer:

z = 21 ; y= 16

Step-by-step explanation:

first of all we have to isolate a variable.

In second expression we can obtain:

3y = 2z+6

y = 2/3 z + 2

now we have to substitute this value in the first equation and solve it

8(2/3z+2)-5z = 23

16/3z + 16 -5z = 23

16z +48 - 15z = 69

z = 21

now we have to substitute z in the second equation:

y = 2/3 (21) +2

y = 14+ 2 = 16

y = 16

6 0

3 years ago

Read 2 more answers

Escherichia coli cells are about 2.65 μm long and 0.480 μm in diameter. Calculate the volume of an E. coli cell, assuming the ce

zmey [24]

Answer:

4.7953 x 10⁻¹⁹ m³

Step-by-step explanation:

Length of the Escherichia coli cell (L) = 2.65 x 10⁻⁶ m

Diameter of the Escherichia coli cell (D) = 0.480 x 10⁻⁶ m

The volume of cylinder in given by:

$V= \frac{\pi D^2}{4}*L \\V= \frac{\pi (0.480*10^{-6})^2}{4}*2.65*10^{-6}\\V= 4.7953*10^{-19} m^3$

The volume of an E. coli cell is 4.7953 x 10⁻¹⁹ m³.

6 0

3 years ago

Pleaseeee helpppppppp!!!

Aleks04 [339]

Answer:

x = 46°

Step-by-step explanation:

Appling the principle of supplementary angle in Geomentry.

Supplementary angle: These are angles that sum up to 180°

From the diagram above, x and 134° are supplementry because they sum up to 180°.

Therefore,

134+x = 180 (Supplementary angle)

Solve for x

x = 180-134

x = 46°

Therefore, the value of the missing angle is 46°

5 0

3 years ago

If sam ran 2hrs on the treadmill and Sarah ran 4/3 miles on the But how many did John do altogether.

Bad White [126]

Answer:

3 1/3 i think hope this helped :).

Step-by-step explanation:

if Sam ran 2hrs on the treadmill and Sarah ran 4/3 miles on the But how many did John do altogether?

8 0

3 years ago

1)which of the following expressions is written in scientific notation?

lesantik [10]

Answer:

1) The correct answer is option D.

2)The correct answer is option A.

3)The correct answer is option A.

4)The correct answer is option B.

Step-by-step explanation:

1) Scientific notation is defined mathematical representation used to to represent the a decimal number which present between 1 to 10 multiplied by 10 raised to power equal ti some integer. For example:

$0.00051 =5.1\times 10^{-4}$

Hence, the correct option is D.

2) The scientific notation of number 0.0000000708.

0.0000000708 = $708\times 10^{-10}=7.08\times 10^{-8}$

Hence,the correct answer is option A.

3)When the power of the number ten is in negative.

if the power is more negative number will be smaller.

If the power is less negative the number will greater.

Greatest number from the given option is $6.1\times 10^{-7}$

$6.1\times 10^{-7}>4.1\times 10^{-7}>5.1\times 10^{-7}>3.1\times 10^{-7}$

4) $\frac{1}{8000}=0.000125$

$\frac{125}{1000000}=1.25\times 10^{-4}$

Hence, the correct answer is option B.

4 0

3 years ago

Read 2 more answers