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tiny-mole [99]
4 years ago
14

Simplify expression (7+x)+7x

Mathematics
1 answer:
yaroslaw [1]4 years ago
5 0
(7+x) + 7x = 8x + 7
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The customer is saving 16% on the shirt
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3 years ago
Help me please!!!!! Thank you
HACTEHA [7]

Answer:

15/2 in³

Step-by-step explanation:

The formula for the vol. of a pyramid

is

V = (1/3)(area of base)(height of pyramid)

Here, the volume is:

V = (1/3)( [1/2][5 in][9 in] )·(10 in)

   = (9/3)(5/2)(10) in³

    =  450/6 in³   =   150/2 in³  =  75 in³     Volume of the pyramid

5 0
3 years ago
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A system of equations is shown below: Equation A: 4c = d − 8 Equation B: c = 5d + 8 Which of the following steps should be perfo
Alchen [17]
<span>Equation A: 4c = d − 8
</span><span>Equation B: c = 5d + 8 
</span>
Multiply Equation A by -5:
Equation A: - 20c = -5d + 40

Equation (1) + (2) :
-19c = 48

Answer: <span>B. Multiply equation A by -5</span>
3 0
3 years ago
Which of the following best describes an output NEED HELP PLS
kirill [66]

Answer:

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Step-by-step explanation:

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3 years ago
A recursive rule for a geometric sequence is a1=2; an= 4/9 an-1
Oxana [17]

A recursive rule for a geometric sequence:

a_1\\\\a_n=r\cdot a_{n-1}

---------------------------------------------------

a_1=2;\ a_n=\dfrac{4}{9}a_{n-1}\to r=\dfrac{4}{9}

---------------------------------------------------

The exciplit rule:

a_n=a_1r^{n-1}

Substitute:

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3 years ago
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