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3 years ago

At 6:00 a.m., the temperature was -3º. Five hours later the temperature was 20° warmer. What was the temperature a

Mathematics

1 answer:

Katen [24]3 years ago

7 0

Answer:

Step-by-step explanation:

-3 + 20 = 17 degrees

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Solve the system of inequalities:<br> 6y≥42<br> 4y+12≤0

Hatshy [7]

Answer:

no solution

Step-by-step explanation:

6y≥42

Divide each side by 6

6y/6≥42/6

y≥7

Then solve the second one

4y+12≤0

Subtract 12 from each side

4y+12-12≤0-12

4y ≤-12

Divide each side by 4

4y/4 ≤-12/4

y ≤-3

There is no solution since there is no overlap

8 0

3 years ago

There are 63 students in a speech contest.Yesterday 1/3 gave a speech and today 2/3 of the remaining students gave their speech.

Paraphin [41]

Hey!

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Solution:

Find 1/3 of 63.

63 / 3 = 21

21 students gave a speech today.

63 - 21 = 42

Find 2/3 of 42.

42 / 3 = 14

14 x 2 = 28

28 of the remaining students gave their speeches.

42 - 28 = 14

-----------------------------------------------

Answer:

14 students haven't given their speeches!

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Hope This Helped! Good Luck!

7 0

3 years ago

The area of a circle is 132.7 square cm. Find the diameter.

Julli [10]

Answer:

The diameter of the circle is 13.

6 0

3 years ago

Read 2 more answers

Finding an Equation of a Tangent Line In Exercise, find an equation of the tangent line to the graph of the function at the give

solmaris [256]

Answer:

$x=5y$

Step-by-step explanation:

We are given that

$g(x)=log_{10}(2x)$

Point(5,1)

$g(x)=\frac{ln(2x)}{log10}$

By using property

$log_x y=\frac{lny}{lnx}$

We have to find the equation of tangent line to the given graph.

Differentiate w.r.t x

$g'(x)=\frac{1}{2xlog 10}\times 2$

By using the formula

$\frac{d(lnx)}{dx}=\frac{1}{x}$

$\frac{dy}{dx}=\frac{1}{xlog 10}$

We know that Log 10=1

$m=g'(x)=\frac{1}{x}$

Substitute x=5

$m=\frac{1}{5}$

Point-slope form

$y-y_1=m(x-x_1)$

By using this formula

$y-1=\frac{1}{5}(x-5)$

$5y-5=x-5$

$x-5y=-5+5=0$

$x=5y$

Hence, the equation of tangent line to the graph

$x=5y$

7 0

3 years ago

Solve for x with a degree of 30 & side of 300ft

tankabanditka [31]

Answer:

x = 100√3

Step-by-step explanation:

tan(30º) = x/300

x = 300 tan(30º)

x = 300/√3

x = 100√3

3 0

4 years ago