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Mademuasel [1]
3 years ago
10

PLEASE HELP WITH WORKING.

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:

solve the last equation for b then solve the first equation for a, after you have a plug that in to find c.

Step-by-step explanation:

a=5+b

c=2a

a+b+c=225

(5+b)+b+(2a)=225

(5+b)+b+[2(5+b)]=225

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a 42 inch diameter tablecloth that hangs off the edge 8 inches. what is the area of the tablecloth use 3.14 for pi​
joja [24]

Answer: 1384.74

Step-by-step explanation:

A=πr^2

radius=42/2=21

(3.14)(21)^2

3.14(441)

1384.74

3 0
3 years ago
What is the standard form of this circle m(2,4) n(9,4)
Helga [31]
You'd have to find slope so you would use y1-y2 over x2-x1 so itd be 4-4 over 9-2 thatd equal 0/7 thats ur slope. using slope intercept form y=mx+b plug in ur slope y=0/7 x + 4 (y- intecept) then youd subtract the 0/7 x from both so youd have -0/7x+y=4 and that is in standard form.
7 0
3 years ago
The sum of two consecutive odd integers is 236. What is the smaller integer
jolli1 [7]
The two consecutive odd integers would be 117 + 119 = 236.

So the answer would be 117 since it is the smaller integer out of the 2.

Hope this helped! :)
5 0
4 years ago
I dont get it help plz
Lana71 [14]

Answer:

The Volume, Area, and Surface Area can be found with division and multiplication. Like so: (1st question, start) = 12m divided by 6m which equals 2. That is the answer for the first one.

Step-by-step explanation:

Multiplication for finding Volume, and Division for finding Area, and Surface Area.

7 0
2 years ago
Differentiate Functions of Other Bases In Exercise, find the derivative of the function.
Maslowich

Answer:

\frac{dy}{dx}=3x^{3x}(lnx+1)

Step-by-step explanation:

We are given that a function

y=x^{3x}+1

We have to find the derivative of the function

Let u=x^{3x}

y=u+1

Taking ln on both sides

lnu=3xln x

By using lna^b=blna

Differentiate w.r.t x

\frac{1}{u}\frac{du}{dx}=3(lnx+x\times \frac{1}{x})=3(lnx+1)

\frac{d(lnx)}{dx}=\frac{1}{x}

\frac{d(u\cdot v)}{dx}=u'v+v'u

\frac{du}{dx}=3u(lnx+1)=3x^{3x}(lnx+1)

Differentiate  y w.r.t x

\frac{dy}{dx}=\frac{du}{dx}

Using the value of du/dx

\frac{dy}{dx}=3x^{3x}(lnx+1)

4 0
3 years ago
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