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3 years ago

5 cm 7 cm 15 cm What is the surface area of the figure? by square centimeters

Mathematics

1 answer:

kow [346]3 years ago

6 0

Is this a right triangle or triangle is solving for?

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Evaluate the expression.

chubhunter [2.5K]

um is this all one equation?

like -2.2×(-2)÷(-14)×5-2.2×(-2)÷(-41)×5?

4 0

2 years ago

What is the equation of the quadratic graph with a focus of (6, 0) and a directrix of y = −10 ?

Mademuasel [1]

Answer:

$(x-6)^{2}=20(y+5)^{2}$

Step-by-step explanation:

The standard for for the equation of a parabola is $(x-h)^{2}=4p(y-k)$

The focus is given as $(h, k+p)$

The directrix is given by $y=k-p$

Comparing focus given as $(6,0)$ to formula of focus $(h,k+p)$ , we see that $h=6$ and $k+p=0$
Comparing directrix given as $y=-10$ to formula of directrix $y=k-p$ , we can write $k-p=-10$

We can use the two system of equations [ $k+p=0$ and $k-p=-10$ ] to solve for $k$ and $p$ .

Adding the two equations gives us:

$2k=-10\\k=\frac{-10}{2}\\k=-5$

Using this value of $k$ , we can find $p$ by plugging this value in either equation. Let's put it in Equation 1. We have:

$k-p=-10\\-5-p=-10\\-5+10=p\\p=5$

Now, that we know $h=6$ , $k=-5$ , and $p=5$ , we can plug these values in the standard form equation to figure out the parabola's equation. Doing so and rearranging gives us:

$(x-6)^{2}=4(5)(y-(-5))^{2}\\(x-6)^{2}=20(y+5)^{2}\\$

This is the equation of the parabola with focus $(6,0)$ and directrix $y=-10$

3 0

3 years ago

Read 2 more answers

For an individual

NikAS [45]

It’s b because you are just moving the decimal over one

5 0

2 years ago

A cuboid is thrice as long as it's breadth and is 4 cm high if it's volume is 300cm² find its length and breadth and total area

Mamont248 [21]

Step-by-step explanation:

v=l×b×h

300cm²=4×3x×x

300÷12=x²

x=5

3x=3×5=15

a=15×5

5 0

2 years ago

Hector is on a trip to Japan. The table below outlines some of the fun things he would like to see and do while on his trip, as

Luden [163]

Amount spent before the sumo tournament = 74.95 + 8745 / 94.153 + 262.49 + 6811 / 94.153 + 2423 / 94.153 = 74.95 + 92.88 + 262.49 + 72.34 + 25.73 = 528.39

Amount left before the sumo tournament = 575 - 528.39 = 46.61

Cost of the sumo tournament = 5488 / 94.153 = 58.29

Therefore, Hector cannot afford to see the sumo tournament, because it would put him over budget by almost $12.

7 0

2 years ago

5 cm 7 cm 15 cm What is the surface area of the figure? by square centimeters ​

5 cm 7 cm 15 cm What is the surface area of the figure? by square centimeters