1 year ago

Find the surface area of the pyramid: A. 88 in. B. 118 in. C. 64 in. D. 56 in.

Mathematics

1 answer:

garri49 [273]1 year ago

8 0

Answer

64 inches squared

Step-by-step explanation:

See attached picture

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Find an equation of the circle that has center (−1,2) and passes through ( 2,−2) .

user100 [1]

Equation of a circle that has a center at (h,k) and radius of r is
(x-h)²+(y-k)²=r²

so

given center (-1,2)
(x-(-1))²+(y-2)²=r²
(x+1)²+(y-2)²=r²

sub the other point to find r or r²

it passes through (2,-2)
sub 2 for x and -2 for y

(2+1)²+(-2-2)²=r²
(3)²+(-4)²=r²
9+16=r²
25=r²
5=r

the equation is
(x+1)²+(y-2)²=5²

8 0

3 years ago

Joanna purchased four boxes of cookies for a party. Each box cost $3.28, including tax. PLEASE HELP!!! 100 POINTS!!! Which expre

Olegator [25]

Answer:

4 / ($3.28) is the correct answer

Step-by-step explanation:

As cost of one box is $3.28

the cost of four boxes will be 4 divided by the cost of one box....so that why the 4/($3.28) is correct option

7 0

2 years ago

How many composite number between 1 and 50

Kamila [148]

Step-by-step explanation:

There are 34 composite numbers between 1 to 50 which are as follows: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50.

5 0

3 years ago

Use a known maclaurin series to obtain the maclaurin series for the given function. f(x = 8x2 tan?1(7x3

11Alexandr11 [23.1K]

Going out on a limb here and guessing that the function is

$f(x)=8x^2\tan^{-1}(7x^3)$

Please correct me if this isn't the case.

Recall that

$\tan^{-1}x=\displaystyle\sum_{n\ge0}\frac{(-1)^nx^{2n+1}}{2n+1}$

which converges for $|x|$ .

It follows that

$8x^2\tan^{-1}(7x^3)=8x^2\displaystyle\sum_{n\ge0}\frac{(-1)^n(7x^3)^{2n+1}}{2n+1}$
$=\displaystyle\sum_{n\ge0}\frac{56(-49)^nx^{6n+3}}{2n+1}$

6 0

3 years ago

I don’t know how to get it

Kaylis [27]

Answer:

3x+7+4x-16= 180 degrees

7x-9=180

7x=189

x= 27

yax= 3x+7

3*27+7= 81+7 = 88

4 0

3 years ago

Read 2 more answers