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3 years ago

Can I get help on B please

Mathematics

1 answer:

gladu [14]3 years ago

6 0

13889.122 pounds didn’t do it In standard

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Shinji started with angle ∠ABC and constructed ray BE

Ierofanga [76]

Answer:

A and C

Step-by-step explanation:

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3 years ago

First two two terms of the given number sequence 3n + 1 are...

PtichkaEL [24]

Answer:

the sequence begins as {4, 7, ... }

Step-by-step explanation:

a(n) = 3n + 1

The first term is a(1) = 3(1) + 1 = 4, and

the second term is a(s) = 3(2) + 1 = 7

So the sequence begins as {4, 7, ... }

5 0

2 years ago

4) Solve ∆ABC, a = 2.5 cm, c = 3.6 cm, and ∠A = 43°. Begin by sketching and labelling

mezya [45]

The length of b and angle B and C are 3cm, 45 degrees and 79 degrees respectively.

<h3>How to determine the parameters</h3>

To determine the angles and length of sides, we use the sine rule

The sine rule is thus:

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

Given;

a = 2. 5cm

c = 3. 6cm

∠A = 43°

Let's find angle C

$\frac{sin 43}{2. 5} = \frac{sin C}{3. 6}$

cross multiply

0. 682 × 3. 6 = sin C × 2. 5

sin C = 2. 4552/ 2. 5

C = $sin^-^1(0. 982)$

C = 79°

To find length of b

$b= \sqrt{c^2 - a^2}$

substitute the values

$b = \sqrt{3.6^2 - 2. 5^2}$

$b = \sqrt{6. 71}$

b = 2. 59 cm

b = 3cm

To find angle B, we have

$\frac{sin 43}{2. 5} = \frac{sin B}{2. 59}$

cross multiply

0. 682 × 2. 59= sin B × 2. 5

sin B = 0. 7065

$B = sin^-^1(0. 7065)$

B = 45°

Hence, the length of b and angle B and C are 3cm, 45 degrees and 79 degrees respectively.

Learn more about sine rule here:

brainly.com/question/12827625

#SPJ1

8 0

2 years ago

The left side of a logarithmic equation is shown.

Vika [28.1K]

A-5 I think it’s true becuase I had the same question and got it correct

4 0

3 years ago

The variables x and y are proportional.Use the vaules to find the constant aof proportonality.Then write the equation that relat

sveticcg [70]

Answer:

Constant of proportionality = 24

Equation: $y=24x$

Step-by-step explanation:

Given:

'x' and 'y' are proportional to each other.

At $x=3,y=72$

Now, for a proportional relationship, the constant of proportionality is given as the ratio of the two values of the two variables that are in proportion.

Here, 'x' and 'y' are in proportion. So, the constant of proportionality is given as:

$k=\frac{y}{x}\\\\k=\frac{72}{3}=24$

Therefore, the constant of proportionality is 24.

Now, a proportional relationship in 'x' and 'y' is given as:

$y=kx$

Now, plug in the given value of 'k' and complete the equation. This gives,

$y=24x$

Therefore, the equation that relates 'x' and 'y' is $y=24x$

8 0

4 years ago