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3 years ago

17 ft. 8 ft. 15 ft. What is the area of the triangle above?

Mathematics

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

60 ft²

Step-by-step explanation:

max2010maxim [7]3 years ago

5 0

Answer:

60 ft.

Step-by-step explanation:

8*15 = 120/2 = 60

You might be interested in

Which quadratic function has a wider graph than y=2x^2?

Trava [24]

Answer:

y = 1/2 x²

Step-by-step explanation:

The coefficient of the first term in a quadratic, in our case here, x², will tell us how the graph stretches. This is akin to the slope within the linear graph. Similar to the slope, the smaller the coefficient value, or value of slope m, the shallower the angle.

When discussing quadratics, the larger the coefficient of our x² term, the steeper, and skinnier the graph. If we want to look for a graph that is wider than y = 2x², then we need to find a graph with a coefficient that is less than 2.

Our only option then is

y = 1/2 x²

8 0

3 years ago

Find the slope of the given points (3, 4) and (7,-4).<br> A)-1/2<br> B) 2<br> C) -2<br> D) 0

kakasveta [241]

Answer:

-2

Step-by-step explanation:

$y = kx + n$

When you insert the given points you get

$3k + n = 4 \\$

$7k + n = - 4 \\$

Than you multiply the first one by - 1 and sum it with the second to get rid of n

$4k = - 8 \\ k = - 2$

7 0

3 years ago

Answers for the 2 boxes please

maxonik [38]

Answer:

(-3,-6)

Step-by-step explanation:

8 0

3 years ago

I only need help on the second and third one

Iteru [2.4K]

let's first off notice that, on the 2), the sector is really half of the whole circle, and on 3) the sector is one quarter of the whole circle.

now, on 2) AB is the diameter of 4 units, therefore it has a radius of 2, or half that.

$\bf \boxed{2} \\\\\\ \stackrel{\textit{area of a circle}}{A=\pi r^2}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=2 \end{cases}\implies A=\pi 2^2\implies A=4\pi \\\\\\ \stackrel{\textit{half of that}}{A=2\pi}\implies A=\stackrel{\textit{rounded up}}{A=6.3~ft^2} \\\\[-0.35em] ~\dotfill$

$\bf \boxed{3} \\\\\\ \stackrel{\textit{area of a circle}}{A=\pi r^2}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=20 \end{cases}\implies A=\pi 20^2\implies A=400\pi \\\\\\ \stackrel{\textit{one quarter of that}}{A=100\pi }\implies \stackrel{\textit{rounded up}}{A=314.2~in^2}$

8 0

3 years ago

1.518 rounded to the nearest hundredth

Dmitriy789 [7]

Answer:

1.52

Step-by-step explanation:

We're rounding to the nearest hundredth.

According to the rules of rounding, we need to look 1 digit place to the right. If that digit is $\geq$ 5, then we round up. Otherwise, we round down.

For 1.518, we need to look at 8 (since we're rounding to the hundredth).

$8\geq 5$ , so we round the hundredths digit up.

So 1.518 rounds up to 1.52

3 0

3 years ago