3 years ago

I need help very fast please!

Mathematics

2 answers:

postnew [5]3 years ago

7 0

I’m not sure maybe D

Nadusha1986 [10]3 years ago

3 0

I think it is B not sure tho:)

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Write 7^3 × √ 7 as a single power of 7

olga_2 [115]

Step-by-step explanation:

7^3 × 7^(1÷2)

= 7^(3+ 0.5)

=7^3.5 ans

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3 years ago

Wesley jogs 10 miles each weeks. Then he jogs 20 miles each week for 3 weeks how many miles does Wesley jog in 5 week?

Kruka [31]

I think he would jog 80 miles in 5 weeks
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3 years ago

What will the graph look like for a system of equations that has no solution?

lyudmila [28]

Answer:

Step-by-step explanation:

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2 years ago

Find four geometric means between 25 and 800.

SVEN [57.7K]

Actually, you have to find four missed terms of geometrical sequence. Denote

$a_1=25,\\ a_6=800$

and r - ratio, then

$a_2=a_1\cdot r=25r,\\a_3=a_1\cdot r^2=25r^2,\\a_4=a_1\cdot r^3=25r^3,\\a_5=a_1\cdot r^4=25r^4,\\a_6=a_1\cdot r^5=25r^5$ .

Since $a_6=800$ , you have that $800=25r^5$ , then

$r^5=\dfrac{800}{25} =32,\\r=2$ .

Now substitude r=2 in each of unknown 4 terms:

$a_2=25\cdot 2=50,\\a_3=25\cdot 2^2=100,\\a_4=25\cdot 2^3=200,\\a_5=25\cdot 2^4=400$ .

Answer: four geometric means between 25 and 800 are 50, 100, 200, 400.

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3 years ago

What is the product of (5y-3)^2

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Answer:

$\sf 25y^2-30y+9$

___________

$\sf Solve$

Expand the expression using the factors within the range of <em>y</em>.

___________

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2 years ago

Read 2 more answers