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3 years ago

What is the measurement of y

Mathematics

2 answers:

Lorico [155]3 years ago

6 0

Answer: 53°
Explanation: 180-127=53

ratelena [41]3 years ago

4 0

Answer:

53 :)

Step-by-step explanation:

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if tanA= -1/7 and tanB= 3/4, where A is abtuse and B is acute, Find without using tables the value of A-B (ans/135)

Damm [24]

Answer:

$A - B = 135 \degree$

Step-by-step explanation:

Recall the trigonometric identity:

$\tan(A - B)=\frac{\tan A-\tan B}{1+\tan A \tan B}$

We substitute;

tan A=-1/7 and tan B=3/4

$\tan(A - B)=\frac{ - \frac{1}{7} - \frac{3}{4} }{1 - \frac{1}{7} \times \frac{3}{4} }$

$\tan(A - B) = - 1$

This implies that,

$A - B = { \tan}^{ - 1} ( - 1)$

$A - B = { \tan}^{ - 1} ( 1) + 90$

$A - B = 45+ 90$

$A - B = 135 \degree$

5 0

2 years ago

Please do all of the parts,, im begging

musickatia [10]

Answer:

i honestly dont know what to do bc this is not math i am familiar with lol

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Factor. 8a2−2ac+12ab−3bc

Masteriza [31]

Answer:

B. (2a +3b)(4a -c)

Step-by-step explanation:

Group the terms pairwise, then factor each pair.

... (8a² -2ac) +(12ab -3bc)

2a is a common factor in the first pair of terms; 3b is a common factor in the second pair of terms. We can factor those out.

... = 2a(4a -c) +3b(4a -c)

Then we see that (4a-c) is a common factor in the result. We can factor that out.

... = (2a +3b)(4a -c) . . . . matches selection B

8 0

3 years ago

Pls help this is kinda hard and it’s due in 45 minutes

VashaNatasha [74]

Answer:

16.8 inches

Step-by-step explanation:

Perimeter =2(length+width) so 2·(5.6+2.8)≈16.8

8 0

2 years ago

Read 2 more answers

How to reduce into simpler terms.?

Sveta_85 [38]

Answer:

The simplest form of the fraction $\frac{45}{100}$ is $\frac{9}{20}$ .

i.e.

$\frac{45}{100}=\frac{9}{20}$

Step-by-step explanation:

Here are some simple observations regarding how to reduce a fraction into simpler terms:

A fraction is reduced to lowest or simplest terms by finding an equivalent fraction in which the numerator and denominator are as small as possible.

In order to reduce a fraction to lowest or simplest terms, divide the numerator and denominator by their (GCF). Note that (GCF) is also called Greatest Common Factor .

So, lets take a sample fraction and reduce into simpler terms.

Considering the fraction

$\frac{45}{100}$

$\mathrm{Find\:a\:common\:factor\:of\:}45\mathrm{\:and\:}100\mathrm{\:in\:order\:to\:cancel\:it\:out}$

$\mathrm{Greatest\:Common\:Divisor\:of\:}45,\:100:\quad 5$

$\mathrm{Factor\:out\:}5\mathrm{\:from\:the\:numerator\:and\:the\:denominator}$

$45=5\cdot \:9\mathrm{,\:\quad }100=5\cdot \:20$

$\frac{45}{100}=\frac{5\cdot \:\:9}{5\cdot \:\:20}$

$\mathrm{Cancel\:the\:common\:factor:}\:5$

$=\frac{9}{20}$

Therefore, the simplest form of the fraction $\frac{45}{100}$ is $\frac{9}{20}$ .

i.e.

$\frac{45}{100}=\frac{9}{20}$

4 0

3 years ago

What is the measurement of y​

What is the measurement of y