All categories

3 years ago

Find the measurement angle of CDL

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

4 0

Answer:

Step-by-step explanation:

153+12x-3=13+x

Lilit [14]3 years ago

3 0

Answer:

Step-by-step explanation:

∠CDE = 153

∠CDL = 13+x

∠LDE = 153-∠CDL

12x-3 = 153-(13+x)

12x-3 = 140-x

13x = 143

x = 11

∠CDL = 13+x = 24 degrees

You might be interested in

How do you simplify this

katen-ka-za [31]

It's 2/5 in decimal form it is 0.4.

5 0

3 years ago

Which of the following statements is false? (5 points)

goldenfox [79]

I really think it is a

7 0

3 years ago

Given that α and β are the roots of the quadratic equation <img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B6x-7%3Dp" id="Tex

siniylev [52]

Answer:

$\large \boxed{\sf \ \ \ p=-11 \ \ \ }$

Step-by-step explanation:

Hello,

$\alpha \text{ and } \beta \text{ are the roots of the following equation}$

$2x^2+6x-7=p$

It means that

$2\alpha^2+6\alpha-7=p \\\\2\beta ^2+6\beta -7=p \\\\$

And we know that

$\alpha= 2\cdot \beta$

So we got two equations

$2(2\beta)^2+6\cdot 2 \cdot \beta -7=p \\\\8\beta^2+12\beta -7=p\\\\ and \ 2\beta ^2+6\beta -7=p \ So \\\\\\8\beta^2+12\beta -7 = 2\beta ^2+6\beta -7\\\\6\beta^2+6\beta =0\\\\\beta(\beta+1)=0\\\\ \beta =0 \ or \ \beta=-1$

For $\beta =0, \ \ \alpha =0, \ \ p = -7$

For $\beta =-1, \ \ \alpha =-2, \ \ p= 2-6-7=-11, \ p=2*4-12-7=-11$

I assume that we are after two different roots so the solution for p is p=-11

b) $\alpha +2 =-2+2=0 \ and \ \beta+2=-1+2=1$

So a quadratic equation with the expected roots is

$x(x-1)=x^2-x$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0

3 years ago

What is the length of segment A (2,1) B (6,6)

stepladder [879]

4.7 because if you plug it in- (2,1) and (6,6) it is 4.7 units

4 0

3 years ago

Read 2 more answers

Please help for 15 points

labwork [276]

Answer: C. The number of rain days decreased over the last 6 months

Step-by-step explanation:

6 0

3 years ago