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3 years ago

I need help on this worksheet!

Mathematics

2 answers:

xenn [34]3 years ago

6 0

Ans of 11 is 99 inches

Alina [70]3 years ago

4 0

Need a better picture

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How do i solve this?

dem82 [27]

Answer:

18x^2 y^8

Step-by-step explanation:

2(-3xy^4)^2

We know that (ab)^x = a^x b^x

2 * (-3)^2 x^2 y^4^2

2 *9 x^2 y^4^2

We know that a^b^c = a^(b*c)

18 x^2 y^(4*2)

18x^2 y^8

4 0

3 years ago

Write each fraction or mixed number as a desimal. 7/8 7/15 4 3/25

gtnhenbr [62]

Answer:

4 3/25 = 4.12

7/8 = 0.875

7/15 = 0.467

4 0

3 years ago

a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks

Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

The third side of a triangle can be found when we know two sides and the angle between them

$c^2 = a^2 + b^2 - 2ab\ cos c$

Here, angle between 90 meters and 130 meters is 65 degrees

From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

Thus, the distance between two landmarks is 123 meters

8 0

4 years ago

melomori [17]

Answer:

Step-by-step explanation:

Communities and associative

5 0

3 years ago

I need help with number 6 and 7 will make us Brainlist pls asnwer both

Dafna11 [192]

Answer:

For 6: A

For 7: B

Step-by-step explanation:

It requires graphing. For circumcenter, you draw a perpendicular line from each vertex to opposite side of that vertex and the intersection of those lines is the point of circumcenter.

6 0

4 years ago