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Naddik [55]
3 years ago
15

What is the value of z in the equation 2z + 6 = –4? (5 points) 5 1 –1 –5

Mathematics
2 answers:
PtichkaEL [24]3 years ago
6 0
The answer is -5. Hope this helps.
marysya [2.9K]3 years ago
6 0
Plug in the options
not 5( 2 x 5) + 6= 16
not 1 ( 2 x 1) + 6 = 8
not -1 (2 x -1) + 6= 4
so its 5 ( 2 x -5) + 6= -4
- 
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Use the drop-down menus to complete the statements about the function p(x) = x(x – 1) + 1. The value of a is . The value of b is
Ludmilka [50]

Answer: The value of a is 1. The value of b is -1. The value of c is 1. The value of the discriminant is -3. The quadratic function will not intersects the  x-axis.

Explanation:

The standard form of a quadratic equation is,

p(x)=ax^2+bx+c

The given function is,

p(x)=x(x-1)+1

It can be written as,

p(x)=x^2-x+1

By comparing this equation with the standard form of quadratic equation. we get,

a=1

b=-1

c=1

The formula for discriminant is,

D=b^2-4ac

D=(-1)^2-4(1)(1)

D=1-4

D=-3

The value of the discriminant is -3.

If D<0, it means the function have no real roots.

If D=0, it means function have one real roots.

If D>0, it means function have two real roots.

Since D<0 it means the function have no real roots. So the function will not intersect the x-axis at any point.

8 0
3 years ago
Read 2 more answers
Justin's car used 12 gallons to travel 252 miles. At what rate does the car use gas, in
s2008m [1.1K]

Answer:

All you have to do is divide the miles by the gallons... 252 miles ÷ 12 gallons = 21 miles/gallons

Your final answer is 21 miles/gallon!!

7 0
3 years ago
Write an equation to model growth or decay in the following scenario. A stock is declining at a rate of 25% of its value every 2
yawa3891 [41]

The exponential function that models this situation is:

y(t) = 225(0.75)^{\frac{t}{2}}

------------------------------------------

A decaying exponential function has the following format:

y(t) = y(0)(1 - r)^t

In which:

  • y(0) is the initial value.
  • r is the decay rate, as a decimal.

In this problem:

  • The stock started at $225, thus y(0) = 225.
  • Declines at a rate of 25% every 2 weeks, thus r = 0.25, t = \frac{t}{2}

The equation is:

y(t) = y(0)(1 - r)^t

y(t) = 225(1 - 0.25)^{\frac{t}{2}}

y(t) = 225(0.75)^{\frac{t}{2}}

A similar problem is given at brainly.com/question/24282972

3 0
2 years ago
100 Points!!!!!!!!!
artcher [175]

Answer:

its u=(-2,1)

Step-by-step explanation:

8 0
3 years ago
What numeral in base 8 equivalent to 3325(denoting 332 base 5)
lakkis [162]
It can help to write each number in expanded form, where the digit is multiplied by a power of the base.

332 base 5 = 3*5^2 + 3*5^1 +2*5^0 = 75 +15 +2 = 92

In base 8, this is
92 = 64 + 24 + 4 = 1*8^2 + 3*8^1 + 4*8^0 = 134 base 8

_____
The conversion of an integer to base b is often done by finding the remainder when dividing by b.
92/8 = 11 remainder 4
11/8 = 1 remainder 3
1/8 = 0 remainder 1

The digits of the converted number (right to left) are the remainders at each step. Here: 92 = 134 (base 8).
5 0
3 years ago
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