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3 years ago

Using the discriminant, how many real solutions does the following quadratic

Mathematics

1 answer:

vazorg [7]3 years ago

5 0

Answer:

D one real solution

Step-by-step explanation:

x^2 - 8x + 16 = 0

This is in the form

ax^2 +bx + c = 0

so we can use the discriminant to determine the number of solutions

b^2 -4ac

(-8)^2 -4(1)(16)

64 - 64

Since the discriminant is zero, there is one real solution.

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A rental moving truck can haul a maximum of 7,500 pounds. Dejuan has boxes that weigh 40 pounds and boxes that weigh 75 pounds.

enyata [817]

Answer:

It is the 3rd graph. The other dude lied and tried to trick me but its the 3rd graph.

Step-by-step explanation:

The 3rd graph C

5 0

3 years ago

Find the annual rate of interest. Principal = 4600 rupees Period = 5 years Total amount = 6440 rupees Annual rate of interest =

Semmy [17]

Answer:

The rate of interest for compounded annually is 6.96 % .

Step-by-step explanation:

Given as :

The principal amount = Rs 4600

The time period = 5 years

The amount after 5 years = Rs 6440

Let The rate of interest = R %

<u>From compounded method</u>

Amount = Principal × $(1+\dfrac{\textrm rate}{100})^{\textrm Time}$

or, Rs 6440 = Rs 4600 × $(1+\dfrac{\textrm R}{100})^{\textrm 5}$

Or, $\frac{6440}{4600}$ = $(1+\dfrac{\textrm R}{100})^{\textrm 5}$

or, 1.4 = $(1+\dfrac{\textrm R}{100})^{\textrm 5}$

Or, $(1.4)^{\frac{1}{5}}$ = 1 + $\dfrac{R}{100}$

or, 1.0696 = 1 + $\dfrac{R}{100}$

or, $\dfrac{R}{100}$ = 1.0696 - 1

Or, $\dfrac{R}{100}$ = 0.0696

∴ R = 0.0696 × 100

I.e R = 6.96

Hence The rate of interest for compounded annually is 6.96 % . Answer

5 0

2 years ago

Make the equations that model the following situations: A man buys 57 fish to start a fish farm, and that breed of fish is known

sweet [91]

Just square to find them to buy the answer by a dividend then the fraction of the answer then you get your answer

3 0

2 years ago

Name an equivalent ratio for 1/2 with a denominator of 20

Westkost [7]

To begin with, equivalent fractions represent the same part of a whole number. So I need to find a fraction, with a denominator of 20, that is the same value as 1/2:
1/2 = ?/20
1*10/2*10 = 10/20

Since the denominator needed to be 20, I multiplied the numerator and the denominator (1/2) by 10 to get 10/20. So, 1/2 and 10/20 are equivalent.

8 0

2 years ago

Plsss answer the question in the photo .I rlly need ur help.It s probably easy for most of you guys here .

denis-greek [22]

Box 1: None
Box 2: None
Box 3: A, B, C, E
Box 4: D

Some columns are empty because there cannot be 0 or 1 aute angle in a shape!

I hope this helped! Mark me Brainliest! :) -Raven❤️

8 0

2 years ago