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Harman [31]
3 years ago
14

If anyone could help me with this I'd be really grateful.

Mathematics
1 answer:
Lostsunrise [7]3 years ago
8 0

Answer:

d = 9

Step-by-step explanation:

Calculate the slope m of line AB and equate the result to 3

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = A(4, 6) and (x₂, y₂ ) = B(d, 21)

m = \frac{21-6}{d-4} = \frac{15}{d-4} = 3 ( multiply both sides by d - 4 )

15 = 3(d - 4), that is

15 = 3d - 12 ( add 12 to both sides )

27 = 3d ( divide both sides by 3 )

9 = d

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An isosceles triangle in which the two equal sides, labeled a, are longer than the base, labeled b.
Vilka [71]

The side labeled "a" is made the longer side. These are the two congruent sides. So a > b.

We are told that the longer side is 6.3, so a = 6.3, meaning that

2a+b = 15.7

2(6.3)+b = 15.7

12.6+b = 15.7

b = 15.7-12.6

b = 3.1

The triangle has sides of: 6.3, 6.3, 3.1

The perimeter is 6.3+6.3+3.1 = 15.7

Going back to the question "which equation can be used to find the length of the base?", it sounds like either you were given a list of multiple choice answers, or you just fill in the blank. If multiple choice, then try to see which answer matches with what I wrote above. If fill in the blank, then I would just enter either 2(6.3)+b = 15.7 or 12.6+b = 15.7

6 0
3 years ago
Charlie measured the circle-shaped part of a sun his sister drew on the chalkboard. The circumference of the circle is 75.36 cm.
ch4aika [34]

Answer:

The diameter of circle is 24 cm.

Step-by-step explanation:

We are given the following in the question:

Circumference of circle = 75.36 cm

We have to find the diameter of the circle.

Circumference of circle =

C =2\pi r

where r is the radius of the circle.

Putting values, we get,

75.36 = 2\times 3.14\times r\\\\r = \dfrac{75.36}{2\times 3.14}\\\\r=12

Diameter of circle =

d=2r\\d=2\times 12=24\text{ cm}

Thus, the diameter of circle is 24 cm.

4 0
3 years ago
a grocery store sells and imported specialty cheesecake for $11 and its own store baked cheesecake for five Use the distributive
Radda [10]
I think its 17 the answer

7 0
4 years ago
The price of gasoline was $ .579 a liter. the new price is 130% of the old. what is the new price?
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4 years ago
What kind of slope is (19,-16)(-7,-15
olasank [31]

Answer:

Slope is -1/26

Step-by-step explanation:

6 0
3 years ago
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