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Snowcat [4.5K]
2 years ago
7

21 and 22 are complementary

Mathematics
1 answer:
nikklg [1K]2 years ago
6 0
(2x+7)+(3x+58)=90
5x+65=90
5x=25
x=5
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A 2.7 meter ladder leans against a house forming
mrs_skeptik [129]

Answer:

1.35m

Step-by-step explanation:

A 2.7 meter ladder leans against a house forming a 30° angle with the house. Exactly how far is the base of the ladder from the house?

We solve the above question using the Trigonometric function of Sine

cos theta = Opposite/Hypotenuse

From the question

Opposite = Distance of base of the ladder from the house = x

Hypotenuse = Length of the ladder = 2.7m

Theta = 30°

Hence,

sin 30 = x/2.7 m

Cross Multiply

x = sin 30 × 2.7m

x = 1.35m

Option b is correct.

3 0
3 years ago
Complete the equation and tell the which property you used? 8x (14+7) =
otez555 [7]

Answer:

168x.

Step-by-step explanation:

We use the distributive property.

8x (14+7) = 8x*14 + 8x * 7

= 112x + 56x

= 168x

7 0
3 years ago
You have decided that you want to be a millionaire when you retire in 44 years. If you can earn an annual return of 11.06 percen
igomit [66]

Answer:

1. Let amount deposited now be P.

So P*(1.1106^44) = 1,000,000, which means P=9896.06

2. Let amount deposited now be P.

So P*(1.0553^44) = 1,000,000, which means P=93639.42

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Mrs. Dixon made 4 trays of salad for the family picnic. The family ate 3/5 of the trays​
Stella [2.4K]

Answer:

2 2/5

Step-by-step explanation:

4 x 3/5

12/5 = 2 2/5

Hope I helped!

7 0
2 years ago
Which of the following best defines a postulate
Mrrafil [7]
A postulate is a statement in math that is so obvious that it does not need to be proven, that is basically what it means, in layman's terms
8 0
3 years ago
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