Mathematics High School

someone please help me with question #14 !!!

Answers

Answer 1

Answer: a, c, e

Step-by-step explanation:

a) True. If x=0, f(0)=c.

b) False. Considering the quadratic formula, we know the solutions are not always x=c.

c) True. This is a standard fact.

d) False. If the discriminant is not positive, there are less than two x-intercepts.

e) True. If you plug into the formula [tex]x=-\frac{b}{2a}[/tex], if b=0, then obviously the x-coordinate of the vertex is also 0.

Related Questions

What is 5/6 - 3/8

A. 1/3
B. 9/16
C. 1/12
D. 11/24

Answers

Answer:

The correct answer is D

Step-by-step explanation:

5/6=20/24. 3/8=9/24. 20/24-9/24=11/24 so D

Sin (61) = 24/ x

find x plz show work

Answers

Answer:

x=27.44

Step-by-step explanation:

sin(61)=24/x

x*sin(61)=24

x=24/sin(61)

x=27.44

IsMepawsxD1234567890abcdef

Answers

IsMepawsxD1234567890abcdef

In triangle Xyz the measure of angle YXZ is 14.5°, and the measure of angle XYZ is 75°. What is the measure of angle XZY in degrees

Answers

Answer:

90.5 degrees

Step-by-step explanation:

The sum of the angle in triangle XYZ is 180 degrees, hence;

m<XYZ + m<YXZ + <XZY = 180

Substitute the given angles

75 + 14.5 + <XZY = 180

89.5+m<XZY = 180

m<XZY = 180 - 89.5

m<XZY = 90.5 degrees

Hence the measure of angle XZY in degrees is 90.5 degrees

help me pls im desperatew :p

Answers

Answer:

Step-by-step explanation:

Because its gonna be a negative number and while using letters you should not use negative numbers you should use positive numbers or decimals

:) good luck

Evaluate the following algebraic expression, if (x = 5, y = 3)
x² +9y - 5

Answers

Answer: 47

Step-by-step explanation:

simply substitute the constants with 5 and 3.

(5)^2 + 9(3) - 5 = 47

answer is 49. explanation: substitute 5 in for x and 3 in for y to get
5 squared+9(3)-5. 5 squared is 25. 9(3) is 27. 25+27-3 equals 49

Help me Please !!!! You will receive Brainliest!!!

Answers

(-3, -3) and (2, 7).

The solutions to a graphed system of equations are where the two graphs cross each other. So in this case the two equations cross at (-3, -3) and (2, 7), and those points are the solutions to the system of equations.

Help me solve this problem
2|m/2|-1>3

Answers

Answer:

is this even a equation

Step-by-step explanation:

flora has a summer job where she earns $9.50 per hour. At this company, employees get a 10% raise after working for 400 hours. If flora works 640 hours over the summer, how much money will she make?

Answers

So if she works 640 hours we need to find out how much of that gets the 10% raise
640-400=240
So 240 hours get a 10% raise
400 • $9.50= $3,800
To find out how much the raise effects it
$9.50 • 10%= $0.95 + $9.50= $10.45
So the rates for the hours over 400 are $10.45
240 • $10.45=$2,508

$2,508 + $3,800= $6,308
So she made $6,308

X^2+10x+22=13 1. Rewrite the equation by completing the square your equation should look like (x+c)^2 = d or (x-c)^2=d 2. What was the solution to the equation?

Answers

Answer:

(x+5)² = 16

Solution: -1 and -9

Step-by-step explanation:

Given the quadratic equation X^2+10x+22=13

Subtract 22 from both sides

X^2+10x+22-22=13-22

x^2+10x = -9

Complete the square

Add the square of half of coefficient of x to both sides

coefficient of x = 10

half of coefficient of x = 10/2 = 5

square of half of coefficient of x= 5² = 25

Add 25 to both sides

x²+10x + 25 = -9+25

(x+5)² = 16

Hence the required equation is (x+5)² = 16

(x+5)² = 16

square root both sides

√(x+5)² = √16

x+5 = √16

x +5 = ±4

x = +4 - 5 and -4-5

x = -1 and -9

Hence the solution to the equation is -1 and -9

PLEASE HELP I'M SOO CONFUSED AND IT'S DUE TODAY!!!!!!!!!!!!!...I HAVE A LOT OF WORK TO DO TODAY AND I JUST NEED HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:

2 Triangles with the bilateral of the sun to the 2nd power of pie

Step-by-step explanation:

I took the test ;)

Cos^4x csc^2x = csc^2 x sin^2 -2

Answers

Answer:

Step-by-step explanation:

i think im not sure the way this question is written doesn't make a lot of sense

A rectangle is 2 feet wide and 4 feet long. A second rectangle is created by increasing the length and width of the first by a scale factor of
2.5. What is the area, in square feet, of the second rectangle?

Answers

Answer:

Step-by-step explanation:

Pls, answer fast with an explanation. At a carnival, it costs $138.00 for 92 tickets. Write an equation that can be used to find the total cost (c) for any number of tickets (t) you buy.

Answers

92 tickets = $138
138/92 = 1.5
1 ticket = $1.50

1.5t = c

Some steps are on paper

Which is the decimal equivalent of 2/3

A. 0.23
OB. 0.32
O c. 0.3
O
D. 0.6

Answers

The answer is d 0.6.......

The answer would be 0.6

The school band has a goal of raising $800 for some new uniforms. If they
have raised $512 so far, what percent of their goal have they raised?
help please (;´༎ຶٹ༎ຶ`)

Answers

Answer:

64%

Step-by-step explanation:

512/800=.64

Answer: The exact answer is 62.5 but rounded its 63.

ITS FOR A TESTT I NEED THE ANSWER

Answers

Answer:

I believe the answer is $1.52. hope this helps

What is the value of X ?

Answers

Answer:

i think x = 4

Step-by-step explanation:

30/25 = 4x-4/20
25(4x-4)=30x20
100x-100=600
100x=700
x=7

Rose and Carl share a 24-ounce bucket of clay. By the end of the week, Rose has used 3 8 of the bucket, and Carl has used 1 4 of the bucket of clay. How many ounces are left in the bucket?

Answers

Answer:Quantity of Clay left = 9ounce

Step-by-step explanation:

Quantity of clay in the bucket = 24 ounce

Quantity of clay used by rose=3/8 of 24 ounce = 4 x 3 = 9 ounce

Quantity of clay used by Carl= 1/4 of 24 ounce = 6 ounce

Therefore Quantity of Clay left = Quantity of clay in the bucket - (Quantity of clay used by rose+ Quantity of clay used by Carl

24 ounce - ( 9ounce + 6 ounce )

24-15ounce

= 9 ounce

A bag contains 4 Snickers bars and 1 Twix bar, and the outcome is drawing a Twix bar. Does the phrase that describes the probability of drawing a Twix bar change from Part A?
a: yes, because there are still only two possible outcomes.
b:No, because it is still less likely to have an outcome of drawing a Twix.
c: yes, because it is still less likely to have an outcome of drawing a Twix.
d:No, because there are still only two possible outcomes.

Answers

Answer:

C. Yes,because it is still less likely to have an outcome of drawing a Twix.

Step-by-step explanation:

Is (9, 0) a solution to the equation y = 9? yes no

Answers

Answer:

I'm going to say no

Step-by-step explanation:

Because y in the pair y is zero not 9.

4. I NEED HELP ASAP!! PLEASE PUT AND ANSWER AND STEP BY STEP EQUATION!! IF YOU DON'T KNOW THE ANSWER DON'T PUT ANYTHING!!
IT'S NOT B

Write a rule for the linear function in the table.

A. f(x) = –3x – 4

B. f(x) = -1/3x - 4

C. f(x) = x – 7

D. f(x) = 3x + 4

Answers

Answer:

A. f(x) = -3x - 4

Step-by-step explanation:

pls subtract the first polynomial from the first one

(42m^(4)+21m^(2))+10) (-8m^(4)-12m^(3)-15m^(2)+9)

Answers

Answer:

34m^4+21m^3+6^2+19

Step-by-step explanation:

since there are no signs in between the bracket you just have to remove it a subtract and add like terms.

Please help! I need the equation of this line.

Answers

Answer: why?

Step-by-step explanation:

The coordinates are (5,-2)

Which of the following describes the transformation from Figure 1
1
to Figure 2
2
?

Answers

5 units to the right and 3 units down

What are the restrictions for y for the following equation? X=10/5+y

Answers

Answer:

y = -5

Step-by-step explanation:

The restriction for the value of y is the value of the variable that will make the function undefined

The function is undefined when the denominator is zero i.e when 5 + y is zero

5+y = 0

y = 0-5

y = -5

Hence the restrictions is at when y = -5

Rewrite the formula to find the width of the base of the prism if the volume, length of the base, and height of the prism are already known.

Answers

Answer:

w = V/lh

Step-by-step explanation:

The volume of a rectangular prism is calculated using the formula V = lwh, where V is the volume of the prism, l and w are the length and width of the base of the prism, respectively, and h is the height of the prism.

Rewrite the formula to find the width of the base of the prism if the volume, length of the base, and height of the prism are already known.

volume of a rectangular prism,V = lwh

Where,

l = length of the base of the prism

w = width of the base of the prism

h = height of the prism

Rewrite the formula to find w

V = lwh

w = V/lh

That is,

width of the base of the prism = volume of the prism divided by length of the base of the prism multiplied by height of the prism

Solve by factoring: x2 – 9x + 20 = 0

A. x = - 4 and x = - 5

B. x = 4 and x = 5

C. x = 20 and x = - 9

D. x = - 4 and x = 5

Show your work

Answers

Answer:

Answer

Given equation is:

−9x+20=0

⇒x

−5x−4x+20=0

⇒(x−4)(x−5)=0

⇒x=4andx=5

Answer:
B.x = 4 x=5

Expiation:
x * (x-4)-5(x-4)=0
(x-4)*(x-5)=0
x-4=0
x-5=0
x1= 4 x2= 5

The airplane travels 1,650 miles in 3 hours. What is
the unit rate?

Answers

Answer:

550 miles per hour

Step-by-step explanation:

Please answer this question CORRECTLY!!!!!

Answers

The answers are the ones in the boxes. All you had to do was substitute x for the numbers on the left.

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