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3 years ago

SOMEONE HELP ME I GO CLASS IN 10 MINS!!

Mathematics

1 answer:

QveST [7]3 years ago

3 0

Answer:

i think its mq

Step-by-step explanation:

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Find the GCF of 40 and 60 listing factors for each number in order from least to greatest.

Cloud [144]

40:1,2,4,5,8,10,20,40
60:1,2,3,4,5,6,10,12,15,20,30,60
The GCF between 40 and 60 is 20

4 0

4 years ago

Your answer<br> What is the value of the expression? -50 + 51? *

bija089 [108]

Answer:

The answer is 1

Step-by-step explanation:

-50+50=1

3 0

3 years ago

Read 2 more answers

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. Y = (4/9) x

frez [133]

Answer:

V = 8.06 cubed units

Step-by-step explanation:

You have the following curves:

$y_1=\frac{4}{9}x^2=f(x)\\\\y_2=\frac{13}{9}-x^2=g(x)$

In order to calculate the solid of revolution bounded by the previous curves and the x axis, you use the following formula:

$V=\pi \int_a^b [(g(x))^2-(f(x))^2]dx$ (1)

To determine the limits of the integral you equal both curves f=g and solve for x:

$f(x)=g(x)\\\\\frac{4}{9}x^2=\frac{13}{9}-x^2\\\\\frac{4}{9}x^2+x^2=\frac{13}{9}\\\\\frac{13}{9}x^2=\frac{13}{9}\\\\x=\pm 1$

Then, the limits are a = -1 and b = 1

You replace f(x), g(x), a and b in the equation (1):

$V=\pi \int_{-1}^{1}[(\frac{13}{9}-x^2)^2-(\frac{4}{9}x^2)^2]dx\\\\V=\pi \int_{-1}^1[\frac{169}{81}-\frac{26}{9}x^2+x^4-\frac{16}{81}x^4]dx\\\\V=\pi \int_{-1}^1 [\frac{169}{81}-\frac{26}{9}x^2+\frac{65}{81}x^4]dx\\\\V=\pi [\frac{169}{81}x-\frac{26}{27}x^3+\frac{65}{405}x^5]_{-1}^1\\\\V\approx8.06\ cubed\ units$

The volume of the solid of revolution is approximately 8.06 cubed units

8 0

4 years ago

Can someone please help? (Year 9 Math) This question is on fractions. Please see picture attached (ex. 2a and b) please show met

Ierofanga [76]

for 2a, use the theorems of geometry and such to look at the area of the square as 16 squares total, then use the lengths and Sim/cos rule for the triangular area, then subtract and you have you shaded area.

8 0

3 years ago

3(x- 1) - 8 = 4 (1+ x) = +5

katrin [286]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

x = 5 x = 4

Step-by-step explanation:

6 0

3 years ago