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vampirchik [111]
2 years ago
7

Marcos found a challenge involving square roots knowing that he solved correctly the answer given by marcos √81 + √49 -√100

Mathematics
1 answer:
n200080 [17]2 years ago
7 0
9 + 7 - 10 = 6 I don’t see the choice above but this is the correct answer.
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Brenda cuts a pie into several equal slices. She gives Sally 2 slices of the pie. Peter takes a quarter of the pie. Henry takes
Juli2301 [7.4K]
Brenda cut the pie into 12 slices. Brenda has 2/12 of the pie or 1/6 of the pie left for herself.
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3 years ago
Help me. The graph of a polynomial with unknown a is given. Write a polynomial
Xelga [282]

Answer:

f(x)=\dfrac{7}{20}\left(x+2\right)^{2}\left(x-1\right).

Step-by-step explanation:

If a graph touches the x-axis at x=c, then (x-c) is a factor of function.

From the given graph it is clear that the graph of function intersect x-axis at x=1 and touch the x-axis at x=-2.

It means (x-1) and (x+2) are not factors of given function but power of (x+2) must be 2.

So, the required function is

f(x)=a(x+2)^2(x-1)    ...(1)

where, a is a constant.

From the given figure it is clear that the graph passes through the point (-4,-7). So, substitute x=-4 and f(x)=-7 in the above function.

-7=a(-4+2)^2(-4-1)

-7=a(-2)^2(-5)

-7=-20a

\dfrac{7}{20}=a

Substitute a=\dfrac{7}{20} in (1).

f(x)=\dfrac{7}{20}(x+2)^2(x-1)

Therefore, the required function is f(x)=\dfrac{7}{20}(x+2)^2(x-1).

6 0
3 years ago
2. Find the value of root4 (81)-2​
arlik [135]
<h2>Answer: <u><em>1</em></u></h2>

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Step-by-step explanation:

\sqrt[4]{81} -2\\=3-2 \\=1

6 0
2 years ago
Read 2 more answers
Multiplied by 3/4 and then divided by 3/5 is the same as dividing by what?
netineya [11]

We have:  x ×  \frac{3}{4} ÷ \frac{3}{5} = x ×  \frac{3}{4}  ×  \frac{5}{3} =  x × \frac{5}{4} = x ÷ \frac{4}{5}

ANSWER:  E. 4/5

Ok done. Thank to me :>

6 0
2 years ago
Tia invests $2,500 at an interest rate of 4%, compounded quarterly, and another $2,500 at an interest rate of 3.75%, compounded
Radda [10]
I’m pretty sure the answer is A I hope that helps :)
5 0
2 years ago
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