All categories

3 years ago

HELP WITH MY MATH QUIZ!!!!!!

Mathematics

2 answers:

scZoUnD [109]3 years ago

5 0

Answer:

a triangle adds upto 180degrees so ?x +65+57=180

122+x=180

122-122+x=180_122

x=58 degrees

Stella [2.4K]3 years ago

3 0

Answer: answer is b.58

Step-by-step explanation:

You might be interested in

Noah Beck starred as Dixie D'Amelio's love interest in her "Be Happy" music video.

Montano1993 [528]

Answer:

yes my answer is yes kind sir

7 0

3 years ago

What does the initial value mean for this function?

Anit [1.1K]

She saves 10 per week.......after 4 weeks, she had 90

so if she started with nothing, after 4 weeks she would have 40.....but for her to have 90, she would have had to have started with (90 - 40) = 50.

Think about it....she starts with 50....and then saves 10 for 4 weeks giving her 40......and now she has 40 + 50 = 90

so ur answer is : Roberta had $ 50 before she started to save money each week

5 0

3 years ago

What is slope intercept for 7x+6y=30

GalinKa [24]

<span>7x+6y=30
6y = -7x + 30
y = -7/6x + 5

answer:
slope = -7/6</span>

4 0

3 years ago

Read 2 more answers

Rationalize the denominator of $\frac{5}{2+\sqrt{6}}$. The answer can be written as $\frac{A\sqrt{B}+C}{D}$, where $A$, $B$, $C$

horrorfan [7]

Answer:

$A +B+C+D = 3$ is the correct answer.

Step-by-step explanation:

Given:

$\frac{5}{2+\sqrt{6}}$

To find:

$A+B+C+D = ?$ if given term is written as following:

$\frac{A\sqrt{B}+C}{D}$

<u>Solution:</u>

We can see that the resulting expression does not contain anything under $\sqrt$ (square root) so we need to rationalize the denominator to remove the square root from denominator.

The rule to rationalize is:

Any term having square root term in the denominator, multiply and divide with the expression by changing the sign of square root term of the denominator.

Applying this rule to rationalize the given expression:

$\dfrac{5}{2+\sqrt{6}} \times \dfrac{2-\sqrt6}{2-\sqrt6}\\\Rightarrow \dfrac{5 \times (2-\sqrt6)}{(2+\sqrt{6}) \times (2-\sqrt6)} \\\Rightarrow \dfrac{10-5\sqrt6}{2^2-(\sqrt6)^2}\ \ \ \ \ (\because \bold{(a+b)(a-b)=a^2-b^2})\\\Rightarrow \dfrac{10-5\sqrt6}{4-6}\\\Rightarrow \dfrac{10-5\sqrt6}{-2}\\\Rightarrow \dfrac{-5\sqrt6+10}{-2}\\\Rightarrow \dfrac{5\sqrt6-10}{2}$

Comparing the above expression with:

$\frac{A\sqrt{B}+C}{D}$

A = 5, B = 6 (Not divisible by square of any prime)

C = -10

D = 2 (positive)

GCD of A, C and D is 1.

So, $A +B+C+D = 5+6-10+2 = \bold3$

5 0

3 years ago

The translation that moves a figure down 4, to the right 2 is

lorasvet [3.4K]

I think it is the 3 on

6 0

2 years ago