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2 years ago

Solve for x ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎

Mathematics

1 answer:

Pie2 years ago

3 0

Answer:

18.46

Step-by-step explanation:

find the area using SSS, then solve for height

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What is the slope of a line that passes through the points (4, 2) and (8, 5) *

Illusion [34]

Start with the slope formula.

Slope formula can be read as the second y minus the first

y over the second x minus the first x.

So for this problem, the second y minus the first y would be

5 - 2 and the second x minus the first x would be 8 - 4.

5 - 2 over 8 - 4 is 3/4.

So the slope of the line that passes through these points is 3/4.

8 0

3 years ago

What is the explicit formula for arithmetic sequence {-20, -5, 10, ...}? Use f(n) where is 1, 2, 3, and so on.

vekshin1

Answer: B

Work:
Since the general formula of an arithmetic sequence is f(n) = (the first term) + (common difference)*(n-1), you just plug in what was given to you in the problem to that equation. The first term is -20 and the common difference is +15 since the the increase from one term to the next is 15. Doing so produces the equation f(n) = -20 + 15(n-1), which is choice B.

5 0

4 years ago

-9/11 multiplied by -11/9

Sunny_sXe [5.5K]

99/99= 1
(Mark me the brainliest)

4 0

3 years ago

Can someone help me with the first 3 as it is my first time doing it ? <br> I need help

Fed [463]

You problem is you don't have any problem. You have a bunch of formulas for the perimeter and area of some shapes.

As for using the formulas, usually you're given all but one of the variables and you can solve for the remaining one.

Notice how the triangle result doesn't have area as a function of a, b and c. That's called Heron's formula and is usually not taught to secondary school students. I don't like to teach it either because Archimedes' Theorem is so much better:

The sides a,b,c and area S of a triangle satisfy

$16S^2 = (a+b+c)(-a+b+c)(a-b+c)(a+b-c) = 4a^2b^2-(c^2-a^2-b^2)^2 = (a^2+b^2+c^2)^2 - 2(a^4+b^4+c^4)$

7 0

3 years ago

In homer run derby competition there were 32 home rinse hit out of 124 hits approximately what percent of hits were home runs

RoseWind [281]

Answer:

26% of hits were home runs.

Step-by-step explanation:

In homer run derby competition there were 32 home rinse hit out of 124 hits approximately.

We need to find what percentage of hits were home runs.

$\text{Formula for percentage }=\frac{\text{Number of hit by home run}}{\text{Total number of hits}}\times 100$

Number of home runs hit = 32

Total number of hit = 124

Now we calculate the percentage

$\%=\frac{32}{124}\times 100\approx 26$

Thus, 26% of hits were home runs.

3 0

3 years ago

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