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UkoKoshka [18]
3 years ago
7

HELP!!!! PLEASE need help now its an emergency.

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

121,6

Step-by-step explanation:

Since the only difference between the triangles are the letters and a few missing numbers, just replace the letters to get your answer. A and D are the same B and E are the same and C and F are the same. So the measurement of angle A is 121 degrees and the length of AB is 6

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Laila reads 36 pages in 4 hours which expression can be used to find the number of pages she reads per hour
djverab [1.8K]

Answer:

D

Step-by-step explanation:

 36 pages divided by 4

6 0
2 years ago
Help needed please and thank you
Dovator [93]
A OK this was hard very hard
4 0
3 years ago
For what value of k is there one solution to the given quadratic equation (k+1)x²+4kx+2=0.
andriy [413]

Answer:

If k = 1 or k = -\frac{1}{2}, there is only one solution to the given quadratic equation.

Step-by-step explanation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = (x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

The signal of \bigtriangleup determines how many real roots an equation has:

\bigtriangleup > 0: Two real and different solutions

\bigtriangleup = 0: One real solution

\bigtriangleup < 0: No real solutions

In this problem, we have the following second order polynomial:

(k+1)x^{2} + 4kx + 2 = 0.

This means that a = k+1; b = 4k; c = 2

It has one solution if

\bigtriangleup = 0

b^{2} - 4ac = 0

16k^{2} -8(k+1) = 0

16k^{2} - 8k - 8 = 0

We can simplify by 8

2k^{2} - k - 1 = 0

The solution is:

k = 1 or k = -\frac{1}{2}

So, if k = 1 or k = -\frac{1}{2}, there is only one solution to the given quadratic equation.

4 0
3 years ago
Sandra tiles 5/4 square yards in 1/3 hour
jolli1 [7]
Sandra lays 3.75 tiles in one hour 
6 0
3 years ago
Solve for n<br> 3n + 2 - 2n + 5 = 17<br> (Combine like terms then solve.)
elixir [45]

Answer:

n+7=17

n=17-7

n=10

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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