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Romashka [77]
3 years ago
13

1 2 3 4 5 6 7

Mathematics
1 answer:
nataly862011 [7]3 years ago
8 0
She’ll need at least 27 dollars
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A wheel has a radius of 10 cm. Approximately how far does it travel in 3 revolutions?
Doss [256]
It will travel 7.5 cm a revolution and 7.5 x 3 wound = your answer i believe
lol i hate geomatry
5 0
3 years ago
Answer this please! extra points and brainliest will b given
zaharov [31]

Answer:

add 7 to 9 times k   : 7+9k

c cubed minus the product of 5 and q plus 4 : c^{3}  - 5q + 4

twice r plus 7 is equal to 45 minus r  : 2r+7=45-r

Product of h and 4 is subtracted from one-fifth of x is 35 :(h*4) - 1/5*x

one third of the difference bewteen 6 and p is added to 8 : (6-p)+8

7 0
3 years ago
To find the equation of a line, we need the slope of the line and a point on the line. Since we are requested to find the equati
murzikaleks [220]

Answer:

x-4y+4=0

f(x)=\sqrt x and x=4

Step-by-step explanation:

We are given that a curve

y=\sqrt x

We have to find the equation of tangent at point (4,2) on the given curve.

Let y=f(x)

Differentiate w.r.t x

f'(x)=\frac{dy}{dx}=\frac{1}{2\sqrt x}

By using the formula \frac{d(\sqrt x)}{dx}=\frac{1}{2\sqrt x}

Substitute x=4

Slope of tangent

m=f'(x)=\frac{1}{2\sqrt 4}=\frac{1}{2\times 2}=\frac{1}{4}

In given question

m=\lim_{x\rightarrow a}\frac{f(x)-f(a)}{x-a}

\frac{1}{4}=\lim_{x\rightarrow 4}\frac{f(x)-f(4)}{x-4}

By comparing we get a=4

Point-slope form

y-y_1=m(x-x_1)

Using the formula

The equation of tangent at point (4,2)

y-2=\frac{1}{4}(x-4)

4y-8=x-4

x-4y-4+8=0

x-4y+4=0

8 0
4 years ago
A number x decreased by 3 is 5​
zysi [14]

Answer:

8

Step-by-step explanation:

x - 3 = 5

x = 5 + 3

x = 8

Therefore, the number is 8.

5 0
3 years ago
PLS HELP!!!!!!!!!!!!!
stepladder [879]
First, multiply the top equation by 2 and bottom by -3.
60x+60y=900
-60x-75y=-1035
————————
-15y=-135
—————-
-15=-15
y=9

So the answer should be 9.
6 0
3 years ago
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