Someone please help me

Mathematics

2 answers:

____ [38]3 years ago

7 0

b.) 270in2 could you give me a brainlyest answer if it helped thanks have a nice day

lina2011 [118]3 years ago

7 0

Place the point of the compass on one end of this line (A) and draw a semicircle Across the Line. Now place the point of the compass on the other end of the line.

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Suppose the integral from 2 to 8 of g of x, dx equals 12, and the integral from 6 to 8 of g of x, dx equals negative 3, find the

Artyom0805 [142]

$\displaystyle\int_2^8g(x)\,\mathrm dx=12$

$\displaystyle\int_6^8g(x)\,\mathrm dx=-3$

Use the fact that integrals are additive on their intervals. Mathematically, if $c\in[a,b]$ , then

$\displaystyle\int_a^bg(x)\,\mathrm dx=\int_a^cg(x)\,\mathrm dx+\int_c^bg(x)\,\mathrm dx$

So we have

$\displaystyle2\int_2^6g(x)\,\mathrm dx=2\left(\int_2^8g(x)\,\mathrm dx-\int_6^8g(x)\,\mathrm dx\right)=2(12-(-3))=30$

8 0

3 years ago

The angle of elevation of the sun is 24°. What is the length of the shadow cast by a person 1.82 m tall?

amm1812

Answer:

4.09 m

Step-by-step explanation:

Let the length of the shadow cast by a person be x m.

$\tan \: 24 \degree = \frac{height \: of \: person}{length \: of \: the \: shadow} \\ \\ 0.4452286853 = \frac{1.82}{x} \\ \\ x = \frac{1.82}{0.4452286853} \\ \\ x = 4.08778693 \: m \\ x = 4.09 \: m$