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BARSIC [14]
1 year ago
10

Solve the system y=x2 +4x + 3 y= 4x + 12 Enter your answers in the boxes.

Mathematics
1 answer:
FrozenT [24]1 year ago
5 0

Answer:

x=intercepts (-3, 0)

Y=intercepts (0, 12)

Step-by-step explanation:

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Max observes the zoo and the library from a helicopter flying at a height of 200 times square root of 3 feet above the ground, a
juin [17]

Answer:

The distance between the zoo and the library is 400ft

Step-by-step explanation:

Let x be the distance between point G and the zoo

Let y be the distance between the zoo and the library

To solve this problem quickly, we use trigonometric relations

tan(angle) = opposite cathetus / adjacent cathetus

In this case

tan(30) = (200√3) / (x+y)

(x+y) =  (200√3)/ tan(30)

(x+y) = 600 ft

For the other angle

tan(60) = (200√3) / (x)

(x) =  (200√3)/ tan(60)

x = 200 ft

y = 600 ft - 200 ft = 400 ft

The distance between the zoo and the library is 400ft

7 0
3 years ago
Read 2 more answers
Please help me. Ion understand.
larisa86 [58]

Answer:

C

Step-by-step explanation:

use SOH-CAH-TOA

sine= opposite/hypotenuse

cosine=adjacent/hypotenuse

tangent= opp./adj.

so that mean <JMK= 3/6 = 1/2

4 0
3 years ago
the football team gained 7 yards. gained 4 yards, lost 5 yards, gained 21 yards, lost 2 yards and gained 4yards to their 43 yard
svet-max [94.6K]
7+4-5+21-2+4=29 Then I used football knowledge to find that they started on the other teams 28 yard line :)
3 0
2 years ago
Evaluate the value of a÷ ( b+c) when a= 51 , b= 15 &amp; c= 2 .
mel-nik [20]

Answer:

by substituting the values we get

51÷(15+2)

51÷17=3

hope it helps you mate

please mark me as brainliast

4 0
3 years ago
What are the mean absolute deviation and population standard deviation of this data set? Round to the nearest tenth if necessary
tekilochka [14]

Answer:

For a data set of N elements:

{x₁, x₂, ..., xₙ}

The mean is:

M = \frac{x_1 + x_2 + ... + x_n}{N}

The mean absolute deviation is:

MAD = \frac{|x_1 - M| + ... + |x_n - M|}{N}

And the population standard deviation is:

PSD = \frac{\sqrt{|x_1 - M|^2 + ... + |x_n - M|^2} }{\sqrt{N}}

In this case, our set has 5 elements, and the set is:

{2, 4, 6, 9, 14}

The mean of this set is:

M = \frac{2 + 4 + 6 + 9 + 14}{5} = 7

The mean absolute deviation is:

MAD = \frac{|2 - 7| + |4 - 7| + |6 - 7|+ |9 - 7| + |14 - 7| }{5} = 3.6

And the population standard deviation is:

PSD =  \sqrt{\frac{|2 - 7|^2 + |4 - 7|^2 + |6 - 7|^2+ |9 - 7|^2 + |14 - 7|^2 }{5}} = 4.2

6 0
2 years ago
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