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Neporo4naja [7]
3 years ago
8

What an i doing wrong

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0
A = 9     b = -5

45 = 4a + 2b +c 

45 = 4(9) + 2(-5) + c

45 = 26 + c 

19 = c
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How do I solve : COT pi/4 ...?
Wewaii [24]
Cot x = cos x / sin x
cot π/4 = cot 45° = cos 45° / sin 45°
We know that sin 45° and sin 45° have the same value:
cos 45° = sin 45° = √2 / 2;
cos 45° / sin 45° = √2/2 : √2/2 = 1
Answer:
cot π/4 = 1
3 0
3 years ago
Car A went 60km 3/4 of an hour. car b went 80km in 4/5 of an hour. witch car is faster
Lostsunrise [7]

Answer:

80km in 4/5

Step-by-step explanation:

60km × <u> </u><u> </u><u> </u><u>3</u><u> </u><u> </u>= 15×3=45

4

80km × <u> </u><u> </u><u> </u><u>4</u><u> </u><u> </u>= 16×4 =64

5

64 is the answer

3 0
2 years ago
Consider the function f(x)=|x+3|−5 and its graph, which follows.
sergiy2304 [10]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

f\left(x\right)=\left|x+3\right|-5

Obtain the function g(x)

g(x)=-\frac{1}{5} f(x)

substitute

g(x)=-\frac{1}{5} [\left|x+3\right|-5]

g(x)=-\frac{1}{5}\left|x+3\right|+1

using a graphing tool

The graph in the attached figure

The vertex is the point (-3,1)

The x-intercepts are the points (-8,0) and (2,0)

The y-intercept is the point (0,0.4)

5 0
3 years ago
Enter the equation of the circle described below.<br><br> Center (5, 2), radius = 3
riadik2000 [5.3K]
For a circle with center (h,k) and radius, r
the equaiton is
(x-h)^2+(y-k)^2=r^2

so

center=(5,2), radius=3

(x-5)^2+(y-2)^2=3^2
(x-5)^2+(y-2)^2=9

6 0
3 years ago
Read 2 more answers
The range of a data set is 14. If the smallest number in the set is 24.
Usimov [2.4K]
The answer is 38. bc 24 + 14 is 38 which is the largest number. so 38-24 = 14 which is the range.
7 0
3 years ago
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