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3 years ago

15 points!

Mathematics

1 answer:

kobusy [5.1K]3 years ago

6 0

Are you sure you didn't have an image to go along with this? Cause this is very unclear...

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Need help please thank you

Nookie1986 [14]

Answer:

y = 4x+1

Step-by-step explanation:

7 0

3 years ago

What is 2 times 2 1/4

zlopas [31]

Answer:

4.5

Step-by-step explanation:

You can change 1/4 to a decimal and then multiply 2×2.25

7 0

3 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

OleMash [197]

ANSWER

$x=1.39$ to the nearest hundredth.

EXPLANATION

We have the equation,

$0=2x^2+3x-8$

Which can be rewritten as

$2x^2+3x-8=0$

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

$ax^2+bx+c=0$

$a=2,b=3,c=-8$

The quadratic formula is given by;

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We now substitute all the values in to the formula;

$x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}$

We simplify to obtain;

$x=\frac{-3\pm\sqrt{9+64}}{4}$

$x=\frac{-3\pm\sqrt{73}}{4}$

We now split the plus or minus sign to obtain;

$x=\frac{-3-\sqrt{73}}{4}$

This implies that;

$x=-2.89$

$x=\frac{-3+\sqrt{73}}{4}$

This will evaluate to;

$x=1.39$

Hence, the positive solution rounded to the nearest hundredth is

$x \approx 1.39$

6 0

3 years ago

Read 3 more answers

Anna truncated the decimal expansion of x to find the best approximation. On a number line, the location of x is between 10.9 an

podryga [215]

Answer:

Well to estimate a decimal the best option would be to round it to.

10 or 11 (For 10.9)

11 (For 11.1)

and since two of them equal 11.

The estimation would be 11.

I hoped this helped.

3 0

2 years ago

Which fraction can be expressed as a repeating decimal?<br> A; 1/10<br> B; 1/4<br> C; 3/5<br> D; 7/9

Tju [1.3M]

Answer: The answer is D

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers