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3 years ago

Please help! marking brainliest :)

Mathematics

1 answer:

andreev551 [17]3 years ago

5 0

Answer: 30

Step-by-step explanation:

rounding 34 to nerest numder 30 or 40

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Can someone please help

Lana71 [14]

9514 1404 393

Answer:

Step-by-step explanation:

The equation ...

y = kx

represents a proportional relationship between x and y. Its graph is a line through the origin. The value of k can be positive or negative. In this question, the value of k is 1/2.

4 0

3 years ago

How do you solve: cos(x-π/3)=-1

gladu [14]

Answer:

x = $\frac{4\pi }{3}$

Step-by-step explanation:

given

cos(x - $\frac{\pi }{3}$ ) = - 1, then

x - $\frac{\pi }{3}$ = $cos^{-1}$ (- 1) = π

Add $\frac{\pi }{3}$ to both sides, hence

x = π + $\frac{\pi }{3}$ = $\frac{4\pi }{3}$

3 0

3 years ago

If the ratio of star shaped cookies to circular cookies is 5: 6 and the ratio of circular cookies to triangular cookies is 3: 10

SCORPION-xisa [38]

Answer:

$1:4$

Step-by-step explanation:

Without loss of generality, let there be 5 star shaped cookies. Following the proportions given, there will be 6 circular cookies. We can set up the following proportion to find out how many triangular cookies there would be:

$\frac{3}{10}=\frac{6}{x},\\3x=60,\\x=20$ .

Therefore, for every 5 star shaped cookies there will be 20 triangular cookies.

Simplifying this ratio we have $5:20 \implies \boxed{1:4}$ .

6 0

3 years ago

The area of one face of a cube is 4x².

nirvana33 [79]

Answer:

Step-by-step explanation

5 0

3 years ago

What is the length of PQ¯¯¯¯¯?

timofeeve [1]

Since you don't have any angle and its opposite side, you cannot establish the ratio for the law of sines, so you must use the law of cosines.

$c^2 = a^2 + b^2 - 2ac \cos C$

Let's change it for this problem.

$r^2 = p^2 + q^2 - 2pq \cos R$

$r^2 = 9^2 + 6^2 - 2(9)(6) \cos 34^\circ$

$r^2 = 9^2 + 6^2 - 2(9)(6) \cos 34^\circ$

$r^2 = 27.46$

$r = 5.24$

$PQ = 5.2~km$

5 0

4 years ago

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