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3 years ago

Help with this please ..

Mathematics

1 answer:

abruzzese [7]3 years ago

7 0

Answer:

the answer is 2.59x10^7

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What is 10.2*15 was the question that I don't completely get

Vika [28.1K]

Answer:

what * means is the same thing as a multiplication sign, what this means is 10.2 x 15, when you do this you get 153

4 0

3 years ago

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle by

uysha [10]

Answer:

C) $6.495\: ft^2$

Step-by-step explanation:

a = 7 ft, b = 3 ft, c = 5 ft (Given)

Therefore, a + b + c = 7 + 3 + 5 = 15 ft

Let's calculate semi Perimeter of the triangle which is given by s

$s =\frac{a+b+c}{2}=\frac{15}{2} = 7.5 \: ft$

Now, by Heron's formula, area of triangle ABC is given as:

$A(\triangle ABC) =\sqrt{s(s-a) (s-b)(s-c)}$

$\therefore A(\triangle ABC) =\sqrt{7.5(7.5-7) (7.5-3)(7.5-5)}$

$\therefore A(\triangle ABC) =\sqrt{7.5(0.5) (4.5)(2.5)}$

$\therefore A(\triangle ABC) =\sqrt{42.1875}$

$\therefore A(\triangle ABC) =6.49519053$

$\therefore A(\triangle ABC) =6.495\: ft^2$

8 0

3 years ago

Please help!!!!!!!!!

solmaris [256]

Answer:

-4q+ $\frac{40}{3}$

Step-by-step explanation:

distribute $\frac{-4}{3}$ on the bracket. So, (3)( $\frac{-4}{3}$ )q-(10)( $\frac{-4}{3}$ )=-4q+ $\frac{40}{3}$

5 0

2 years ago

Given the functions a(x) = 3x − 12 and b(x) = x − 9, solve a[b(x)].

zalisa [80]

A(x) = 3x - 12
b(x) = x - 9

a(b(x)) = a(x - 9) = 3(x - 9) - 12 = 3x - 27 - 12 = 3x - 39
a(b(x)) = 3x - 39

5 0

3 years ago

Read 2 more answers

Help please, If your mom is making a garden and she wants it it be 5 yards how much cm is that

dsp73

Answer:

it would be 457.2 cm or if you want it simplified then it would be 457 cm

hope this helped :)

4 0

3 years ago