All categories

3 years ago

HELP MEH HELP MEH PLZ

Mathematics

2 answers:

tatuchka [14]3 years ago

8 0

The answer is the 3rd one you can eliminate the first two because they would be incorrect but if you want to check you answer you can enter the 3rd one on a scientific calculator

bulgar [2K]3 years ago

6 0

Answer:

[2×10*(-3) × (4×10*(4)] = 80

Step-by-step explanation:

First of all 0.002 is 10*(-3) and not 10(-2) , so you can eliminate the first 2 answers.

Second of all, according to the calculator the left equation is correct, while the right one isn't... so there you go

Glad to help :)

You might be interested in

Given that Triangle ABC such that<br>a=8cm, b=7cm and c=9cm<br>tem and c= 9cm find Cos B

charle [14.2K]

Answer:

We use cosine rule also called cosine law which states

c^2=a^2+b^2-2abcosC

given

a=8cm, b=7cm, c=9cm cos C?

9^2=8^+7^2-2*8*7 cos C

expand

81=64+49-112 cos C

like terms together

81-113=-112 cos C

-32=-112cos C

multiply both sides by -1

32=112cos C

divide both sides by 112

32/112=cos C

cosC=0.2857

find cos inverse of 0.2857

angle C= 73.40

4 0

3 years ago

Find the number of roots for each equation.<br> 5. 5x4 + 12x3 – x2 + 3x + 5 = 0

pav-90 [236]

Answer:

The number of roots for equation $5x^4 + 12x^3 – x^2 + 3x + 5 = 0$ is 4 .

Step-by-step explanation:

Here, the given function polynomial is :

$P(x) : 5x^4 + 12x^3 – x^2 + 3x + 5 = 0$

The Fundamental Theorem of Algebra says that a polynomial of degree n will have exactly n roots (counting multiplicity).

Now here, the degree if the polynomial is 4 (highest power of variable x).

So, according to the Fundamental Theorem, the given polynomial can have AT MOST 4 roots, counting Multiplicity.

Hence, the number of roots for equation $5x^4 + 12x^3 – x^2 + 3x + 5 = 0$ is 4 .

7 0

3 years ago

Solve each trigonometric equation such that 0 ≤ x ≤ 2????. Give answers in exact form.

sveticcg [70]

Answer:

(a) $x=\frac{5\pi }{3}$

(b) $x=\frac{\pi }{8}$

Step-by-step explanation:

It is given that $0\leq x\leq 2\pi$

(a) We have given equation $2sinx+\sqrt{3}=0$

$sinx=\frac{-\sqrt{3}}{2}$

$x=sin^{-1}(-0.866)$

$x=\frac{-\pi }{3}=2\pi -\frac{\pi }{3}=\frac{5\pi }{3}$

(b) $tan(2x)=1$

$2x=tan^{-1}1$

$2x=\frac{\pi }{4}$

$x=\frac{\pi }{8}$

7 0

3 years ago

I need an answer ASAP. Somebody HELLLLP!

Lana71 [14]

2 pairs of lines that intersect

6 0

3 years ago

Read 2 more answers

Will give brainliest and 5 stars if correct. How does Shakespeare manipulate language?

lions [1.4K]

Answer:

Shakespeare uses the language of the characters to achieve this multifaceted quality. Through the use of language (specifically Iago, Othello, and Desdemona), Shakespeare propels the plot, engages the audience, creates dramatic irony, and reveals the characters’ psyches.

7 0

3 years ago

Read 2 more answers