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stich3 [128]
3 years ago
10

HEY CAN SOMEONE HELP ASAP IVE BEEN ON THIS QUESTION FOR A WHILE NOW?!

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0

Answer:

y=11.5x

he rides 11.5 miles every hour

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The perimeter of a triangle is 57 centimeters. The longest side is 3 ​centimeter(s) less than the sum of the other two sides. Tw
Setler79 [48]
Let's say x is longest side, y is shortest side and z is the other side. So we have some equations such that

x+y+z=57 (by the first sentence)

x=(y+z) -3 (by the second sentence)

2y=x-15  (by the third sentence)

By the second equation, we have y+z=x+3 and if we use it in the first equation, then x+y+z=x+(x+3)=57. So x=27

Since x=27, if we use it in the third equation the we have 2y=x-15=27-15=12 then y=6

Therefore z=24


5 0
3 years ago
In an arithmetic sequence the sum of the first six odd-numbered terms (a1,a3,a5,a7,a9 and a11) is 60. find the sum of the first
alexandr1967 [171]

Answer:

Im so sorry!

Step-by-step explanation:

>:(

8 0
3 years ago
What is the equation, in slope-intercept form, for the line that passes through the point (2, −3) and is perpendicular to the li
diamong [38]

Answer:

The equation is;

y = (-x-23)/25

Step-by-step explanation:

The equation of a straight line can be given as y = mx + b

where m is the slope and b is the y-intercept

for y = 25x + 4

m is 25

Now, we need the slope of a line perpendicular to this,

If two lines are perpendicular, the result of the product of their slopes is -1

m1 * m2 = -1

25 * m2 = -1

m2 = -1/25

Mathematically, we have the slope in the point slope form as ;

y+3 = -1/25 (x - 2)

y = -x/25 + 2/25

y = -x/25 + 2/25 - 3

y = -x/25 -73/25

6 0
3 years ago
A splice uses 24 centimetres of rope when two ropes are tied together. What basic fraction is this a 300 centimetre spliced rope
Vikki [24]

so 24cm out of 300 cm is spliced

24/300 is the fraction

we can simplify this by dividing top and bottom by 3 to get

8/100

we can divide top and bottom by 4 to get

2/25 is the most simplified fraction

3 0
4 years ago
Given that cos 63°≈ 0.454, enter the sine of a complementary angle.<br> sin
jek_recluse [69]

Answer:

\cos(63^\circ) is the same as \sin(27^\circ) by co-function identities

Step-by-step explanation:

Remember that complementary angles add up to 90°. The angle that i s complementary to 63° is 27°.

Also recall the co-function identities:

  • sin (90° – x) = cos x
  • cos (90° – x) = sin x

This means that \cos(90^\circ-27^\circ)=\sin(27^\circ)\approx0.454.

4 0
2 years ago
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