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2 years ago

Find the value of the length a x rounded to 1 DP. The diagram is not drawn accurately

Mathematics

1 answer:

son4ous [18]2 years ago

8 0

Answer:

x ≈ 3.7 m

Step-by-step explanation:

Use the right triangle on the left to find the height h , using the sine ratio

sin39° = $\frac{opposite}{hypotenuse}$ = $\frac{h}{7}$ ( multiply both sides by 7 )

7 × sin39° = h , then

h = 4.4

Using the tangent ration on the right side right triangle, then

tan50° = $\frac{opposite}{adjacent}$ = $\frac{h}{x}$ = $\frac{4.4}{x}$ ( multiply both sides by x )

x × tan50° = 4.4 ( divide both sides by tan50° )

x = $\frac{4.4}{tan50}$ ≈ 3.7 m ( to 1 dec. place )

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stepladder [879]

Answer:

The weight of sunflower seeds in each snack bag is 1/16 of a pound

Step-by-step explanation:

Here, we want to know the weight of sunflower seeds in each snack bag.

The total weight bought is 9/16 pound and the division is into 9 bags

So the weight of the individual bags will be ;

9/16 divided by 9

= 9/16 * 1/9 = 1/16

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3 years ago

Rationalize the denominator of (click photo)

Ede4ka [16]

$\frac{\sqrt{-49}}{(7-2i)-(4+9i)}=\\
\frac{\sqrt{-1*7*7}}{3-11i}=\\
\frac{7i}{3-11i}*\frac{3+11i}{3+11i}=\\
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\frac{-77+21i}{130}$

so it is the last option

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3 years ago

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rjkz [21]

Answer:

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Step-by-step explanation:

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5 0

2 years ago

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In a candy bar, 165 calories are from sugar. There are 250 calories in the candy bar. What percent of the calories are from suga

stiv31 [10]

165/200=33/40
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2 years ago

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The graph of a linear equation passes through three of these points: (0, 5), (2, 2), (3, 1), and (4, -1). The point that the gra

dlinn [17]

Label the given points as follows:
A (0, 5)
B (2, 2)
C (3, 1)
D (4, -1)

The straight line has a constant slope. Therefore it should have the same value when any two of the four points are used to calculate the slope.

Try A and B:
Slope = (2 - 5)/(2 - 0) = -3/2

Try A and C:
Slope = (1 - 5)/(3 - 0) = -4/3

Try A and D.
Slope = (-1 - 5)/(4 - 0) = -3/2

Try B and D.
Slope = (-1 - 2)/(4 - 2) = -3/2

Clearly, C does not lie on the straight line.

Answer: The point that the graph does not pass through is (3,1).

5 0

2 years ago