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Vaselesa [24]
4 years ago
5

What is the value of a, if a2 – 64 = 0 and a > 0

Mathematics
1 answer:
shutvik [7]4 years ago
7 0
A is 32 because

2a=64
a=64/2
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Evaluate the algebraic expression 3f + g,when f = 6, g = 8, h = 12 and j = 2
Luden [163]
3(6)+8=26
I think 26 is the answer
6 0
3 years ago
Hi can someone please help me with this question? thank you
GarryVolchara [31]

Answer:

I will immediately answer this question only if you go to the oldest question you asked about needing 6th grade help and choose me!

Step-by-step explanation:

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5 0
3 years ago
Can someone please help with these 3 I am so confused on what to do thank you!!!!
WINSTONCH [101]

<u>Answer:</u>

26. \frac{3}{4} \leq x

27. x\leq 5

28. 0\leq b

<u>Step-by-step explanation:</u>

26. \sqrt{4x-3}:

Taking square on both the sides to get:

(\sqrt{4x-3} )^2 < (5)^2

4x-3

4x

x

x

For non-negative values for radical:

4x-3\geq 0

x\geq \frac{3}{4}

So solution for this: \frac{3}{4} \leq x

27. 2+\sqrt{4x-4}\leq  6

Subtracting 2 from both the sides to get:

2+\sqrt{4x-4}-2\leq  6-2

\sqrt{4x-4}\leq 4

Taking square root on both sides:

(\sqrt{4x-4})^2\leq (4)^2

4x-4\leq 16

x\leq \frac{20}{4}

x\leq 5

28. \sqrt{b+12} -\sqrt{b}>2

Adding \sqrt{b} to both the sides to get:

\sqrt{b+12} -\sqrt{b}+\sqrt{b}>2+\sqrt{b}

\sqrt{b+12} >2+\sqrt{b}

Taking square on both sides:

(\sqrt{b+12})^2 >(2+\sqrt{b})^2

b+12>(2+\sqrt{b})^2

b+12>4+4\sqrt{b}+b

4+4\sqrt{b} +b

Subtracting b from both sides to get:

4+4\sqrt{b} +b-b

4+4\sqrt{b}

Subtracting 4 from both sides:

4+4\sqrt{b}-4

4\sqrt{b}

Square both sides again:

(4\sqrt{b})^2

16b

b

b

and for non-negative radical b\geq 0

therefore, solution is 0\leq b.

5 0
3 years ago
I need help with #7, I am not sure how to solve it and what interval means
Flura [38]
Find solutions between the intervals
-3, -2, -1, 0, 1, 2, 3

You got the basic idea how to solve it but:

when you have 2^-3, it's not -8
2^-3 = 1/2^3 = 1/8
same goes with -2 and -1

When you have negative power you basically divide n^-x = 1/n^x
8 0
3 years ago
9) Kings Field Bank charges a monthly maintenance fee of $12 and a check
dangina [55]

Based on the monthly maintenance fee and the check writing fee, the total fees paid would be <u>$166.96</u>

<h3>Total fees paid </h3>

Alyssa will pay a total fee of:

= Yearly maintenance fee + Check writing fee

<em>= (Monthly maintenance fee x Number of months) + (Number of checks x Check writing fee)</em>

Solving gives:

= (12 x 12) + (287 x 0.08)

= 144 + 22.96

= $166.96

In conclusion, the total fees was $166.96.

Find out more on fees at brainly.com/question/25035724.

5 0
3 years ago
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