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Softa [21]
3 years ago
5

Help me with math questions

Mathematics
1 answer:
morpeh [17]3 years ago
8 0
Yes he is right because the triangle has a 90 degree angle in the corner making it a right triangle
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1/2r -3= 3 (4-3/2r) solve for r
s2008m [1.1K]

1/2r -3= 3 (4-3/2r) is to be solved for r.


I'll begin by making the assumptions that by 1/2r you actually meant (1/2)r and that by 3/2r you actually meant (3/2)r. When in doubt, please use parentheses to make your meaning clear.


Thus, 1/2r -3= 3 (4-3/2r) becomes (1/2)r -3= 3 (4-(3/2)r ) .

Simplify this by multiplying all 3 terms by 2. Doing this will eliminate the fractions:


r -6 = 3 (4*2-(3)r ) or r - 6 = 24 - 9r


Now expand the right side, using the distributive property of

r - 3 = 24 - 9r


Regrouping so as to combine like terms:


10r = 30


Solving for r: r = 30/10 = 3


The value of r that satisfies this equation is 3

8 0
3 years ago
Jordan said 60% of 150 people is 80 people. His work is shown below. Is his answer correct? Explain why or why not.60% of 150 =
MakcuM [25]

Answer:

No, see below.

Step-by-step explanation:

10% of 150 is .1 times 150= 15

15+75=90

So, Jordan is incorrect.

8 0
3 years ago
What is the remainder of 2 ^1026 divided by 5
RoseWind [281]
Convert decimal into a fraction: 2^ 10267.5

Transform expression: 2^20535/2

Simplify root: √2^20535

Solution: 2^10275 x √2
6 0
4 years ago
Identify the equation that describes the line in slope-intercept form. slope = 2 , point (- 1, 2) is on the line
JulijaS [17]

<u>Answer:</u>

y=2x+4

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

  • Given a slope and a point on the line, you can use point slope form and then rearrage your terms into slope-intercept form
  • <u>SLOPE-INTERCEPT FORM</u>: y=mx+b, where "m" is your slope and "b" is your y-intercept
  • <u>POINT-SLOPE FORM:  </u> (y-y_{1}) =m(x-x_{1}), where y_{1} represents the y-coordinate of your point, x_{1} represents the x-coordinate of your point, and m represents the slope

(y-2)= 2(x-(-1))

  • Point-slope form

(y-2)=2(x+1)

y-2=2x+2

y=2x+4

  • Slope-intercept form

3 0
2 years ago
Can someone please help me on this question?​
yan [13]

Answer: q³⁰

Explanation:

First just solve the first part using the exponent rules

p²q⁵ becomes 1/p-⁸q-²⁰ then we flip the fraction so the exponents become positive. Now we have p⁸q²⁰.

Before multiplying the other equation, we must simplify. p-⁴q⁵ becomes 1/p⁴q-⁵ and since it's the exponents being raised to a power we simply multiply the inner exponents times the outer exponent which yields 1/p⁸q-¹⁰. We must make q-¹⁰ positive so we will then bring it to the numerator of the fraction which gives us: q¹⁰/p⁸.

Multiply q¹⁰/p⁸ * p⁸q²⁰/1 = p⁸q³⁰/p⁸ divide the p exponents by each other which yields 0 since when u divide exponents you just subtract them so 8 - 8 = 0. Your answer is now q³⁰/1 or just q³⁰

4 0
4 years ago
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