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3 years ago

Please help me with this.

Mathematics

1 answer:

alisha [4.7K]3 years ago

3 0

Answer

8.5

Step-by-step explanation:

43 - 3d = d + 9

43 = d + 3d + 9

43 - 9 = 3d + d

34 = 4d

34/4 = 4d/4

8.5 = d

btw its a bit rude just to delete my answer you shouldve just asked for me to show an explanation

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Mariana [72]

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Step-by-step explanation:

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1 year ago

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horsena [70]

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2 years ago

This morning, the temperature rose 2 degrees in 2/3 of an hour at what rate did the temperature rise per hour

insens350 [35]

Answer:

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5 0

2 years ago

URGENT! Please and Thanks :)

eimsori [14]

For this case we will define the following:
A, B: are the values of the triangle angles
a, b: are the values of the lengths of the sides opposite the angles A, B.
We then have to use the law of the sine:
$\frac{sinB}{b} = \frac{sinA}{a}$
Clearing the angle B we have:
$sinB = \frac{sinA}{a}*b$
$B = arcsin(\frac{sinA}{a}*b)$
Substituting values we have:
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the following is true:
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2 years ago

Find the exact or approximate area of the shaded region

Lana71 [14]

Answer: 18.24 cm^2

Step-by-step explanation:

the two 135 degree angles indicate that the third angle (the one with the shaded region) is 90 degrees, which means that the shaded region is within 1/4 of the circle.

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[r^2(3.14)]/4 pi is substituted by 3.14, and the radius is 8.

50.24 is the area of 1/4 of the circle.

2. Next you'd have to find the area of the triangle formed by the shaded region, and subtract the triangle from the area of the 1/4 circle.

the triangle is an isoceles triangle with two sides each valuing at 8cm, so to find the area of the triangle you would multiply the two sides (or square them since they're the same number) and divide by two

this means the triangle is 32 cm^2

3. we can subtract the 1/4 circle (50.24) by the area of the triangle (32) to get the area of the shaded region, which is <u>18.24 cm^2</u>

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2 years ago

Please help me with this.​

Please help me with this.