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3 years ago

Can somebody please tell me the answer ?!?!

Mathematics

1 answer:

Oliga [24]3 years ago

5 0

Еле ьывлащпгааоашалаом 45

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So far soon-jin has sent out 48 invitations to her party. This is 4/5 a of all of the invitations she will send out.

grigory [225]

4/5 is 80% so 48 represents 80% so it's 48/80*100 = 60

4 0

3 years ago

Which is the BEST choice for the measure of this angle? A) 85° B) 95° C) 105° D) 115°

Over [174]

B. 95° is the best choice for the angle measurement

7 0

3 years ago

The figure shown is made up of a cone and a cylinder. The height of the cone is 5 ft and its diameter is 12 ft. The height of th

elena-s [515]

The lateral area of a cone is 147ft².

The total surface area of the cylinder is 867ft².

The total surface area is 1014ft²

<h3>What is the lateral surface area of a cone?</h3>

The lateral area of a cone is defined as the area covered by the curved surface of the cone.

Lateral area of a cone = πr x √(r² + h²)

Where:

r = radius = 12/2 = 6ft
h = height = 5ft
π = 3.14

3.14 x 6 x √(36 + 25) = 147ft²

<h3>What is the total surface area of the figure ?</h3>

Total surface area of the cylinder : πr(r + 2h),

(3.14 x 6) x (6 + 40) = 867ft²

Total surface area = 867 + 147= 1014ft²

To learn more about lateral surface area, please check: brainly.com/question/27847638

#SPJ1

4 0

2 years ago

Solve triangle ABC given that A = 56°, B = 57°, and b = 9.00. Round the length of the sides to the nearest hundredth

daser333 [38]

Answer:

Part 1) $C=67^o$

Part 2) $a=8.90\ units$

Part 3) $c=9.88\ units$

Step-by-step explanation:

step 1

Find the measure of angle C

Remember that the sum of the interior angles of any triangle must be equal to 180 degrees

$A+B+C=180^o$

substitute the given values

$56^o+57^o+C=180^o$

$C=180^o-113^o=67^o$

step 2

Find the length side a

Applying the law of sines

$\frac{a}{sin(A)}=\frac{b}{sin(B)}$

substitute the given values

$\frac{a}{sin(56^o)}=\frac{9.00}{sin(57^o)}$

solve for a

$a=\frac{9.00}{sin(57^o)}sin(56^o)$

$a=8.90\ units$

step 3

Find the length side c

Applying the law of sines

$\frac{c}{sin(C)}=\frac{b}{sin(B)}$

substitute the given values

$\frac{c}{sin(67^o)}=\frac{9.00}{sin(57^o)}$

solve for c

$c=\frac{9.00}{sin(57^o)}sin(67^o)$

$c=9.88\ units$

3 0

4 years ago

The perimeter of a rectangle is 70cm.

Nesterboy [21]

Answer:

The length of longest side is 25 cm.

Step-by-step explanation:

Given that the perimeter of rectangle is, P = 2(l+w) where l represents length and w is width.

In this question let length be the shorter side and width be the longer side. Given that the length of this rectangle is 10 cm and the perimeter is 70 cm, so you have to substitute it into the formula :

$p = 2(l + w)$

Let p = 70 cm,

Let l = 10 cm,

Let w = w cm,

$70 = 2(10 + w)$

$70 = 20 + 2w$

$2w = 70 - 20$

$2w = 50$

$w = 25 \: \: \: cm$

3 0

4 years ago