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1 year ago

Simplify 7 to the power of 8 x 7 to the power of 3 x 7 to the power of 4 divide 7 to the power of 9 x 7 to the power of 5

Mathematics

1 answer:

Lemur [1.5K]1 year ago

7 0

You can get the app Air Math I have the app and it helps a lot

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What is the value of f(−1) when f(x) = 2x + 2 f(−1)=

Elza [17]

F(-1)=2*(-1)+2
f(-1)=2-2
f(-1)=0

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2 years ago

Solve the formula for n. A=a+d(n-1) evaluate n when A=25, a=5, and d=13

ser-zykov [4K]

Answer:

Step-by-step explanation:

You;ll run into this formula a lot. Make sure you study it carefully.

A = 25

a = 5

d = 13

Find n

25 = 5 + 13*(n- 1)

20 = 13(n - 1)

This isn't going to work out. 20/13 does not give a whole number which it should.

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3 years ago

The owner of a motel has 2900 m of fencing and wants to enclose a rectangular plot of land that borders a straight highway. If s

navik [9.2K]

Answer:

Step-by-step explanation:

Given that the owner of a motel has 2900 m of fencing and wants to enclose a rectangular plot of land that borders a straight highway.

Fencing is used for 2times length and 1 width if highway side is taken as width

So we have 2l+w = 2900

Or w = 2900-2l

Area of the rectangular region = lw

$A(l) = l(2900-2l) = 2900l-2l^2\\$

Use derivative test to find the maximum

$A'(l) = 2900-4l\\A"(l) = -4$

So maximum when I derivative =0

i.e when $l =\frac{2900}{4} =725$

Largest area = A(725)

= $725(2900-2*725)\\= 1051250$

1051250 sqm is area maximum

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3 years ago

NEED HELP RN!!! PLS ☹️

Korolek [52]

Answer:

show the screen clearer !

Step-by-step explanation:

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2 years ago

Enter the patriot equivalent to Tan (A) And Enter the ratio equivalent to cos (B)

PolarNik [594]

Answer:

$(a)\ \tan A = \frac{5}{12}$

$(b)\ \cos B = \frac{5}{13}$

Step-by-step explanation:

Given

See attachment for triangles

Solving (a)

$\tan(A)$

The tan of an angle is:

$\tan(\theta) = \frac{Opposite}{Adjacent}$

From the given triangle.

$Opposite = 5$

$Adjacent = 12$

So, we have:

$\tan A = \frac{5}{12}$

Solving (b)

$\cos(B)$

The cos of an angle is:

$\cos(\theta) = \frac{Adjacent}{Hypotenuse}$

From the given triangle.

$Adjacent = 5$

$Hypotenuse = 13$

So, we have:

$\cos B = \frac{5}{13}$

3 0

2 years ago