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alukav5142 [94]
3 years ago
9

How do you solve this and i have other questions like this one i really need to know how to do it

Mathematics
1 answer:
Natalija [7]3 years ago
7 0

Answer:

25

Step-by-step explanation:

it's because 5 is squared so 5x5 is 25 and x squared

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Which is the graph of the cube root function f(x) = RootIndex 3 StartRoot x EndRoot?
lara [203]

Answer:

<h3>On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (0, 0), and goes thorugh (8, 2).</h3>

Step-by-step explanation:

f(x)=\sqrt[3]{x}\\\\f(-8)=\sqrt[3]{-8}=-2\to(-8,\ -2)\\\\f(0)=\sqrt[3]{0}=0\to(0,\ 0)\\\\f(8)=\sqrt[3]{8}=2\to(8,\ 2)\\\\\\\sqrt[3]{a}=b\iff b^3=a\\\\\text{Therefore:}\\\\\sqrt[3]{-8}=-2\ \text{because}\ (-2)^3=-8\\\sqrt[3]0=0\ \text{because}\ 0^3=0\\\sqrt[3]{8}=2\ \text{because}\ 2^3=8

7 0
3 years ago
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Find M<br> A. 17<br> B. 16<br> C. 18<br> D. 20
mixas84 [53]

Answer:

A. 17

Step-by-step explanation:

using the cosine rule (also see attached for reference):

AB² = BC² + AC² - 2·AC·BC cos C

2·AC·BC cos C = BC² + AC² - AB²

Given that AC = 18, AB = 12 and BC = 18, substituting these into the formula

2(18)(28) cos C = 28² + 18² - 12²

1008 cos C = 964

cos C = 964/1008

cos C = 0.9563

C = cos⁻¹ 0.9563

C = 16.99 ( = 17° rounded to nearest degree)

7 0
3 years ago
The ratio of two numbers is 3to 4. The synod the number is 63. What are the two number
lidiya [134]
I THINK THE ANSWER IS 9
4 0
3 years ago
Please Help Will give 20 points
wariber [46]

600 +200 + 100 = 900

2000 - 900 = 1100

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8 0
3 years ago
Solve for x<br> 4r – 9 – 6x = 21
ehidna [41]

Answer:

X= 30-4r/-6

Step-by-step explanation:

1. Move the 9 to the other side. (21+9=30)

2. subtract the 4r and move it to the other side (-6x=21-4r)

3. divide both sides by -6

5 0
3 years ago
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