All categories

4 years ago

Please help me! And can you please show how you found the answer?

Mathematics

1 answer:

dedylja [7]4 years ago

6 0

Answer:

? = 31°

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

the sum of the angles in a straight angle = 180°

The lower triangle's third angle can be found as

180° - (20 + 35)° ← angle sum in triangle

= 180° - 55° = 125°

the upper triangle has angle = 125° ( vertically opposite angles ) and

180° - 156° = 24° ( straight angle ), hence

? = 180° - (125 + 24)° ← angle sum in triangle

? = 180° - 149° = 31°

You might be interested in

The perimeter of a rectangular field is 24 m. If its length is 9m, find (i) breadth (ii) area of the rectangle

Monica [59]

Answer:

breadth: 3 m and area of rectangle: 27 m²

explanation:

part A:

perimeter of rectangle: 2 ( length + breadth )

using the formula:

24 = 2 ( 9 + breadth )

9 + breadth = 12

breadth = 3 m

part B:

area of the rectangle = length * breadth

using the formula:

9 * 3

27 m²

3 0

3 years ago

Read 2 more answers

Solve the inequality below for x, where r > 0

Shkiper50 [21]

Please include the inequality

6 0

4 years ago

Which of the listed values are equal to the sine of C A.)b/a B.)c/a C.)c/b D.)cos B E.)5.Cos C F.)cos (90°-C) G.)cos(90°-B)

kherson [118]

Answer:

Sine of C=?

Among the given options which is the correct one.

Step-by-step explanation:

Consider a right-angle triangle ABC.

$angle B=90^{0}$

In a right angle triangle, one angle $90^{o}$ .

The sum of all the angles is $180^{o}$ .

$angle A +angle B+angleC=180^{0}angleA+90^{0} +angle C=180^{0}\\angleA+angleC=180^{0} -90^{0} \\angleA+angleC=90^{0} \\angleA=90^{0} -angle C$

Consider the trigonometric ratios and use the traingle ABC.

$SinC=\frac{AB}{AC}$

$CosA=\frac{AB}{AC}$

$angleA=angle(90-C)\\Hence,\\SinC=Cos(90-C)$

Answer:

OptionF). $Sine of C=Cos(90^{0} -C)$

4 0

3 years ago

The local dairy farm has 3.7×10^3 cows and each cow produces 2.6×10^3 gallons of milk each year. How many gallons are produced a

Nadusha1986 [10]

Answer:

96.2*10^5 gallons

Step-by-step explanation:

gallons of milk produced by 1 cow = 2.6×10^3

No. of cows with local dairy farm = 3.7×10^3

Total of gallons of milk produced by farm = gallons of milk produced by 1 cow * No. of cows with local dairy farm = 2.6×10^3 * 3.7×10^3 = 9.62*10^6

we have to write it in standard form = 96.2*10^5 gallons

i can be also written as = 9,620,000 Gallons.

9.62 Million Gallons of milk is produced by local dairy farm Yearly.

8 0

3 years ago

Estimate the values to complete the table. Round to the nearest hundredth

GuDViN [60]

Answer:

thats to hard to answer

6 0

3 years ago