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olga nikolaevna [1]
3 years ago
7

The sum of two numbers is 52 . The larger number is 12 more than the smaller number. What are the numbers?

Mathematics
1 answer:
son4ous [18]3 years ago
6 0
this is the answer 40 + 32
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Jose just submitted his resume to a job posting. The posting started thats the job pays $47.588 annually. What would Jose’s mont
Marrrta [24]

Answer:

3965.67 a month

Step-by-step explanation:

presuming you mean $47,588 annually.

47588/12

8 0
3 years ago
Find the surface area of a pyramid
Cerrena [4.2K]

Answer:

A=lw+l\sqrt{(\frac{1}{2}w) ^{2} +h^{2} } +w\sqrt{(\frac{1}{2}l) ^{2} +h^{2} }

Step-by-step explanation:

The formula for the surface area of a pyramid is A=lw+l\sqrt{(\frac{1}{2}w) ^{2} +h^{2} } +w\sqrt{(\frac{1}{2}l) ^{2} +h^{2} }

7 0
3 years ago
Two angles of a triangle measure 22 and 53 what is the measure of the third angle
Musya8 [376]
The third angle is 105.
How do I know this?
Add 22 and 53:
22 + 53 = 75
All interior angles on a triangle should add up to 180.
Subtract 75 from 180:
180 - 75 = 105
105 is our answer.
Hope this helps! =)
3 0
3 years ago
Given the function f(x)=3x+5a / x^2-a^2 find the value of a for which f'(12) = 0
maria [59]
The function, as presented here, is ambiguous in terms of what's being deivded by what.  For the sake of example, I will assume that you meant

           3x+5a
<span> f(x)= ------------
</span>          x^2-a^2

You are saying that the derivative of this function is 0 when x=12.  Let's differentiate f(x) with respect to x and then let x = 12:

             (x^2-a^2)(3) -(3x+5a)(2x)
f '(x) = ------------------------------------- = 0 when x = 12
                [x^2-a^2]^2

(144-a^2)(3) - (36+5a)(24)
------------------------------------  =  0
               [   ]^2

Simplifying,

(144-a^2) - 8(36+5a) = 0

144 - a^2 - 288 - 40a = 0

This can be rewritten as a quadratic in standard form:

-a^2 - 40a - 144 = 0, or a^2 + 40a + 144 = 0.

Solve for a by completing the square:

a^2 + 40a + 20^2 - 20^2 + 144 = 0
        (a+20)^2    = 400 - 144 = 156

        Then a+20 = sqrt[6(26)] = sqrt[6(2)(13)] = 4(3)(13)= 2sqrt(39)

         Finally, a = -20 plus or minus 2sqrt(39)

You must check both answers by subst. into the original equation.  Only if the result(s) is(are) true is your solution (value of a) correct.
6 0
3 years ago
Please help me with this.
snow_lady [41]

Answer:

Angl.(QMT) = 134°

Angl.(QMT) = Angl.(QMS)+ Angl.(SMT)

or, 134°= (7x-4)° + (2x+3)°

or, 134° = 7x + 2x -4° +3°

or, 134° = 9x -1°

or, 134° + 1° = 9x

or, 135° = 9x

or, 135°/9° = x

or, 45° = x

x=45°

3 0
3 years ago
Read 2 more answers
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