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3 years ago

Radius of 8 find the area?

Mathematics

1 answer:

sergejj [24]3 years ago

5 0

C= πr²
C= 3.14×8²
C=3.14×64
C=200.96

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Find (fog)(x).

azamat

Answer:

$\large\boxed{(f\circ g)(x)=-15x+14}$

Step-by-step explanation:

$f(x)=-5x+9\\\\g(x)=3x-1\\\\(f\circ g)(x)=f\bigg(g(x)\bigg)-\text{put}\ x=g(x)\ \text{in}\ f(x):\\\\(f\circ g)(x)=-5(g(x))+9=-5(3x-1)+9\qquad\text{use the distributive property}\\\\=(-5)(3x)+(-5)(-1)+9=-15x+5+9=-15x+14$

3 0

3 years ago

The surface of the Salton Sea in California is 226 feet below sea level. The peak of a mountain, also in California, is 10,000 f

Ivenika [448]

Answer:

10226 ft

Step-by-step explanation:

Let x be the sea level, A horizontal imaginary line on the sea's surface.

-Given that Salton is -226 ft below this line and the mountain is 10000ft above sea. The difference between this elevetions is calculated as;

$\bigtriangleup =Mountain \ Peak-Sea \ bottom\\\\=10000-(-226)\\\\=10000+226\\\\=10226$

Hence, the difference between the two elevations is 10226 ft

7 0

3 years ago

Help me someone- that's legit all I ask for....

Reptile [31]

Since 1sand=3.5compost you can set up the ratio 1/3.5 or 1 sand for every 3.5 compost. If you change the number of sand to three, then you multiply the top by three since 1*3=3. To keep the mixed number equal you would have to multiply the bottom number by three as well. This means that you can multiple all the sand by 3.5 to get how much compost is needed.

7 0

2 years ago

What's the prime factorization of 306

QveST [7]

306/2 = 153*2 = 306
153/3 = 51*3 = 153
51/3 = 17*3 = 51

2,3,3,17 = all prime numbers.
306 = 2*3*3*17

7 0

3 years ago

Identify the equation that describes the line in slope-intercept form. slope = 2 , point (- 1, 2) is on the line

JulijaS [17]

Answer:

$y=2x+4$

Step-by-step explanation:

Given a slope and a point on the line, you can use point slope form and then rearrage your terms into slope-intercept form

SLOPE-INTERCEPT FORM: $y=mx+b$ , where "m" is your slope and "b" is your y-intercept
POINT-SLOPE FORM: $(y-y_{1}) =m(x-x_{1})$ , where $y_{1}$ represents the y-coordinate of your point, $x_{1}$ represents the x-coordinate of your point, and $m$ represents the slope

$(y-2)= 2(x-(-1))$

Point-slope form

$(y-2)=2(x+1)$

$y-2=2x+2$

$y=2x+4$

Slope-intercept form

3 0

2 years ago