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4 years ago

How many real solutions does the function shown on the graph have?

Mathematics

1 answer:

lesya692 [45]4 years ago

5 0

This is a quadratic function.y = a x² + b x + cHere the function crosses x-axis at the points: ( - 4, 0 ) and ( 0 , 0 ).The function is y = x² + 4 x.The zeroes are: x1 = - 4, x2 = 0.Answer:Two real solutions.

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The bill for a meal was $33.75. The customer left $40.00. What percentage of the bill was the tip?

Eva8 [605]

Answer:

It was a 18.5% Tip

6 0

4 years ago

The interior angles of a quadrilateral are 2x+15 2x-5 3x+75 3x-25 find x and the smallest interior angle largest interior angle

BartSMP [9]

Answer: $x=30^{\circ}$

Step-by-step explanation:

We know sum of the interior angles of a quadrilateral is $360^{\circ}$

therefore we can write

$(2x+15)+(2x-5)+(3x+75)+(3x-25)=360^{\circ}$

$\Rightarrow 10x+60=360$

$\Rightarrow 10x=300$

$\Rightarrow x=30^{\circ}$

So smallest interior angle is $(2x-5)^{\circ}=(60-5)=55^{\circ}$

Largest interior angle $=3x+75=90+75=165^{\circ}$

3 0

3 years ago

A double cheeseburger has 540 calories, a milk shake has 490 calories and a serving of fries has 380 calories. If you burn 130 c

Inessa05 [86]

Answer:

10.846 hours

Step-by-step explanation:

first you add all the calories= 1410 calories

then you divide 1410 calories by 130 (the calories you can burn in one hour)

your answer is 10.846 which means that it takes 10.846 hours to consume 1410 calories.

4 0

3 years ago

What is the equation of a line parallel to y=−3x+5, and passes through thepoint (6, 8)?

nikitadnepr [17]

Answer:

y = - 3x + 26

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 5 ← is in slope- intercept form

with slope m = - 3

Parallel lines have equal slopes, thus

y = - 3x + c ← is the partial equation

To find c substitute (6, 8 ) into the partial equation

8 = - 18 + c ⇒ c = 8 + 18 = 26

y = - 3x + 26 ← equation of parallel line

6 0

4 years ago

There are 50students in a class the number of girls are 28,Find the ratio of boys to girls

vitfil [10]

Answer: 28: 22

Explanation: The total is 50, but there are 28 boys, so there are 22 students remaining, so those 22 students remaining are girls.

6 0

4 years ago

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