MATHEMATICS HIGH SCHOOL

A blueprint is drawn using a scale of 2 mm over 25 ft. What length is represented by 1 mm?A) 12.5 ft
B) 50 ft
C) 10.5 ft
D) 23 ft

Answers

Answer 1
Answer: The length of 1 mm is12. 5 ft

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Simplify the expression. 11c + 3(-5c + 4d)

N Squared - N = 90
N =?

Answers

n^2 - n = 90
n^2 - n - 90 = 0
(n - 10)(n + 9) = 0

n - 10 = 0
n = 10

n + 9 = 0
n = -9

answer is : n = 10 and n = -9

Which value of x must be excluded from the domain of the function, y = 9 / 2(x + 7)?a) -2
b) -7
c) 2
d) 7

Answers

b) -7 because the dominator must be different by 0.

2(x + 7) ≠ 0    |divide both sides by 2

x + 7 ≠ 0    |subtract 7 from both sides

x ≠ -7

Lucas has a bag that contains 11cabbages, 12 beets, and 7 stalks of
celery. Lucas performs 50 pulls, record
ing the vegetables drawn and placing
the pulled vegetable back into th
e bag before the next draw.
How many cabbage draws would is ex
pected if 1000 pulls are conducted?
10,000 pulls?

Answers

Answer:

3667 times

Step-by-step explanation:

Suppose a parabola has vertex (–4, 7) and also passes through the point (–3, 8). Write the equation of the parabola in vertex form.

Answers

The equation for a parabola can also be written in the "vertex form":
 y = a (x-h) ^ 2 + k
 Where,
 the vertex of the parabola is the point (h, k).
 The value of a is the term that accompanies x ^ 2
 Substituting values we have:
 y = a (x - (- 4)) ^ 2 + 7
 Rewriting we have:
 y = a (x + 4) ^ 2 + 7
 For the point (-3, 8) we have:
 8 = a (-3 + 4) ^ 2 + 7
 From here, we clear the value of a:
 8 = a (1) ^ 2 + 7 8 = a + 7 a = 8 - 7 a = 1
 Then, the equation is given by:
 y = (x + 4) ^ 2 + 7
 Answer:
 The equation of the parabola in vertex form is:
 y = (x + 4) ^ 2 + 7
y=a(x-h)^2 +k
in the vertex (h, k) given that vertex (-4, 7)
we get y=(x-(-4))^2 +7
y=(x+4)^2 +7
hope it helps

How do i do problems that have fractions and a negative or a zero exponent with it?

Answers

Remember these:
\left((a)/(b)\right)^(-c)=\left((b)/(a)\right)^(c)\n\na^0=1

A vendor sells 60 pieces of fruit that are either apples or oranges. The ratio of apples to oranges is 3: 2. How many apples did the vendor sell? How many oranges did the vendor sell?

Answers

36 apples, 24 oranges

For this, each 'group' contains 5 fruits; three are apples; two are oranges. Take 60/5 is 12. then multiply 12 by each number of apples and oranges in each group, getting 36 apples and 24 oranges.
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