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3 years ago

How do you solve this

Mathematics

2 answers:

gavmur [86]3 years ago

8 0

You have to times the 5 and 9 and you will get the answer to V.

kogti [31]3 years ago

7 0

Multiply 9 and 5 and you get 45.

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Calculate the side lengths a and b to two decimal places.

Zinaida [17]

Answer:

$a=10.92 units$

$b=14.51 units$

Step-by-step explanation:

We are given that c=6 units

$\angle A=43^{\circ}$

$\angle B=115^{\circ}$

We have to find the side length a and b.

We know that sum of angles of a triangle =180 degrees

$\angle A+\angle B+\angle C=180$

Substitute the values then we get

$43+115+\angle C=180$

$158+\angle C=180$

$\angle C=180-158=22^{\circ}$

sine law: $\frac{a}{sin A}=\frac{b}{sin B}=\frac{c}{sin C}$

$\frac{a}{sin 43^{\circ}}=\frac{6}{sin 22^{\circ}}$

$a=\frac{6}{sin 22^{\circ}}\times sin 43^{\circ}$

$a=10.92 units$

$\frac{b}{sin 115^{\circ}}=\frac{6}{sin 22^{\circ}}$

$b=\frac{6}{sin 22^{\circ}}\times sin 115^{\circ}=14.51$

$b=14.51 units$

6 0

3 years ago

PLEASE HELP THIS IS THE LAST QUESTION AND I WANT TO GO TO BED. PLEASE EXPLAIN SO I CAN DO IT FOR NEXT TIME AS WELL

rewona [7]

15+70+45=130 :)) that’s how u calculate the perimeter just add them all together.

7 0

3 years ago

Rational numbers that are not integers

gogolik [260]

A rational number that is not an integer can be expressed in decimal form with a non-zero digit after the decimal

7 0

3 years ago

Help me with this please

Dahasolnce [82]

I only know B
Answer

X= 1 over 7 hj + 27 over 7

8 0

3 years ago

What is the product of (x-2)(x+2)?

Ilya [14]

Answer:

The difference of squares is (a - b)(a + b) = a² - b². Since a = x and b = 2, the answer is x² - 4.

6 0

3 years ago

Read 2 more answers