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3 years ago

Which equations with exponential expressions are true?

Mathematics

2 answers:

Delvig [45]3 years ago

6 0

Answer: B and E

Step-by-step explanation:

7.7.7.7.7.7 means 7×7×7×7×7×7 = 7^6

Exponent of number can be at time written in such format.

Also B is correct because

5^2 = 5.5 = 5×5

Only B and E are true.

LenKa [72]3 years ago

4 0

Answer:

Answer is , only B and E are correct.

Refer below.

Step-by-step explanation:

5^2 = 5.5 gives the same result 25.

7.7.7.7.7.7 = 7^6 gives the same result 117649.

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alina1380 [7]

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3 years ago

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How many solutions does this equation have? -4(5-3x)=12x+20

UNO [17]

Answer: The number of solutions to the given equation is zero.

Step-by-step explanation: We are given to find the number of solutions to the following equation :

$-4(5-3x)=12x+20~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To find the number of solutions, we must solve the given equation.

The solution of equation (i) is as follows :

$-4(5-3x)=12x+20\\\\\Rightarrow 5-3x=\dfrac{12x+20}{-4}\\\\\Rightarrow 5-3x=-3x-5\\\\\Rightarrow -3x+3x=-5-5\\\\\Rightarrow 0=-10,$ which can never be possible.

So, the given equation has no solution.

Thus, the number of solutions to the given equation is zero.

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4 years ago

What is the perimeter of a hexagon, with all equal sides, with one side that is 8ft long?

Natalka [10]

8 x 6
48

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4 years ago

<img src="https://tex.z-dn.net/?f=%5Csf%5Clarge%5Cgreen%7B%5Cunderbrace%7B%5Cred%7BBefikra%2A%7D%7D%7D%3A" id="TexFormula1" titl

slamgirl [31]

First term f = 1

If first four terms are f, f + d, f + 2d, f + 3d

f + f + d + f + 2d + f + 3d = 100

4f + 6d = 100 (divided by 2 , both sides )

2f + 3d = 50

2 + 3d = 50

3d = 50 – 2

3d = 48

d = 48/3

d = 16

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2 years ago

Maggie used 7/8 mile on monday and 1/2 of that distance on Tuesday. How far did she jog on Tuesday?

ANEK [815]

Answer:

7/4 or 1 3/4

Step-by-step explanation:

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4 years ago