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3 years ago

What error did Anya make?

Mathematics

1 answer:

natali 33 [55]3 years ago

3 0

Answer:

Step-by-step explanation:

i just took the assignment and its A.

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Law of radicals

andrey2020 [161]

Answer:

1) $\sqrt{x^7}=x^{\frac{7}{2}$

2) $\sqrt[3]{y^5}=y^{\frac{5}{3}$

3) $\sqrt[5]{a^{12}}=a^{\frac{12}{5} }$

4) $\sqrt[4]{z^{9}}=z^\frac{9}{4}$

Step-by-step explanation:

1) $\sqrt{x^7}$

We know that $\sqrt{x}=x^{\frac{1}{2}$

So, $\sqrt{x^7}=x^{\frac{7}{2}$

2) $\sqrt[3]{y^5}$

We know that $\sqrt[3]{x}=x^{\frac{1}{3}$

So, $\sqrt[3]{y^5}=y^{\frac{5}{3}$

3) $\sqrt[5]{a^{12}}$

We know that $\sqrt[5]{x}=x^{\frac{1}{5}$

So, $\sqrt[5]{a^{12}}=a^{\frac{12}{5} }$

4) $\sqrt[4]{z^{9}}$

We know that $\sqrt[4]{x}=x^{\frac{1}{4}$

So, $\sqrt[4]{z^{9}}=z^\frac{9}{4}$

6 0

3 years ago

(a+b)^2-a^2+b^2 factorise

Brrunno [24]

Answer:

2b(a+b)

Step-by-step explanation:

(a+b)²-a²+b²=a²+2ab+b²-a²+b²=2ab+2b²=2b(a+b)

8 0

4 years ago

Read 2 more answers

The perimeter of an isosceles triangle is 15.6 m. Find the lengths of its sides, if: The base is 3 m bigger than a leg.

klio [65]

So, an isosceles triangle has 2 equal sides, we will call them x.

The base can be modeled by 3+x

So, the perimeter is equal to x + 3+x + x

15.6 = 3x + 3

12.6 = 3x

4.2 = x

So, the lengths of the sides are 4.2, 4.2, 7.2

5 0

4 years ago

Help it’s algebra 2!! asap plzz

Ostrovityanka [42]

(x+3)(x-1/4)=x^2+11/4-3/4

3 0

3 years ago

Write the equation in standard form of the circle with radius 5 and center 0,3

EleoNora [17]

The equation of a circle is (x-h)²+(y-k)²=r², with h being the x value in the center, k being the y value, and r being the radius. x and y can stay variables, so we can plug numbers in to get (x-0)²+(y-3)²=5²=25=x²+(y-3)²

4 0

3 years ago