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Answer: Cathy spent a total of $701.55.

Step-by-step explanation:

Answer:

first root -2 and the second is 10

Step-by-step explanation:

delta=b squared-4ac=64-4(-1)(20)=144>0

then we have 2 +roots

x1= -b+ radical delta/2a =-2

x2=-b - radical delta/2a=10

The value of m for which -x² +8x+m=0 to have two positive roots is m ≤ 0.

A polynomial is an expression that involves the addition, subtraction and multiplication of variables.

A quadratic polynomial is a polynomial of degree 2.

Given that:

f(x)=-x² + 8x + 20

To determine the values of m for which -x² +8x+m=0 would have two positive roots​

For -x² +8x+m=0 to have two positive roots, m ≤ 0.

The value of m for which -x² +8x+m=0 to have two positive roots is m ≤ 0.

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Answer:

f

Step-by-step explanation:

f

Answer:

63 feet.

Step-by-step explanation:

The total diameter of the circular garden is given by 5ft+ 10 ft + 5 ft= 20 feet

As the circumference of the circle = 2πr where r = radius obtained by dividing the diameter by 2. Here the diameter = 20 feet and r= d/2 = 20/2 = 10 feet

Putting the values in the circumference formula

Then C= 2(22/7) (10)= 62.85 feet

Rounding gives almost 63 feet .

Answer:

1. r = 2.5 mm

2. r = 12ft

3. d = 34 cm

for 4-6 you  use 2(pi) r

4. 25.1 ft

5. 40.8 cm

6. 22 mi

Answer is below. Look at the explanation in order to understand my answer.

To find the diameter, you'll have to get the radius in order to solve the diameter.

Since you said r = 17cm, we should be solving for diameter.

The formula is d = 2r

R will represent the radius.

You'll multiply the 2 by the radius.

Like i've said, R will represent the radius. The radius is 17.

With that being said, we can do the math.

The formula will be: d = 2r → d = 2 × 17

2 times 17 is 34.

The diameter would be 34.

Let me know of question or concerns about my answer.

its not allowing me to send it. can i send somewhere else?

Step-by-step explanation:

Answer:

The answer is 40

Step-by-step explanation:

If you have to say how long it will take, it will take 40 min. 200÷5=40

Answer: See step by step. Replace the x with theta

Step-by-step explanation: Since sin is less than zero, and secant is positive. This means the trig values are in Quadrant 4.

We know that secФ=17/15. We need to find sin,cos,tan,csc, and cot.

We can find tangent by using the identity

[tex]tan^{2} (x)+ 1=sec^{2} (x)[/tex] where x is theta.

[tex]tan^{2} (x)+1=\frac{289}{225}[/tex]

[tex]tan^{2} (x)+\frac{225}{225} =\frac{289}{225}[/tex]

[tex]tan^{2}(x)=\frac{64}{225}[/tex]

tan x=[tex]\frac{8}{15}[/tex], Tangent in the fourth  quadrant is negative  so  the answer is instead

[tex]tan x= -\frac{8}{15}[/tex]

We can find cotangent by taking the recipocial of tan so

[tex]cot=-\frac{15}{8}[/tex]

We can find cos by taking reciprocal of sec remeber that cosine is positive in 4th quadrant so the answer is

[tex]cos =\frac{15}{17}[/tex]

We can find sin by doing quoteint identies.

[tex]\frac{sin x}{cos x} =tan x[/tex]

[tex]\frac{ sin x}{15/17} =-\frac{8}{15}[/tex]

[tex]sin x= -\frac{8}{17}[/tex]

To find csc, take reciprocal of sine.

[tex]csc=\frac{-17}{8}[/tex]

Answer:

5ft

Step-by-step explanation:

Volume = length x width x height

5 x 3 x h = 75

15h = 75

h = 5

Answer:

A. W

Step-by-step explanation:

The table in which each x-value is related to exactly one y-value is the table that represents a function.

Form the tables given, in table W, every x-value (input) has exactly one y-value (output) that is related to it.

The correct table that represents a function is table W

For a table of values to be a function, the input values also known as the domain of the function must NOT have a repeated values.

Hence the correct table that represents a function is table W

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Answer:

x = 7

Step-by-step explanation:

The segment from the centre at right angles to the chord, bisects the chord, so

x = 7

Answer:

Rainfall amount on June 1 = ¾ inch

Step-by-step explanation:

Greatest daily rainfall in May = 1½

Rainfall amount in June 1 = ½ of 1½

Thus:

rainfall amount in June = ½ × 1½

= ½ × ³/2

= (1*3)/(2*2)

= ¾

Rainfall amount on June 1 = ¾ inch

Answer:

the measure of angle 1 should also be 71 degrees as they are corresponding angles.

Answer:

jiri's age is 66 years old

Step-by-step explanation:

76-10= 66 years old

Answer:

x = 4

m<cdb = 82

Step-by-step explanation:

The exterior angle thm states that the exterior angle of a triangle is equal to the sum of the opposite interior angles:

7x + 2 + 17x = 98

24x + 2 = 98

24x = 96

x = 4

m<cdb =

y + 98 = 180

y = 180 - 98

y = 82

Answer:

In order two straight lines in a coordinate plane intersect, they MUST have different slopes.

This condition is  NECESSARY  and  SUFFICIENT.

Step-by-step explanation:

The key feature of the functions that are needed to determine if the lines intersect are;

From straight line geometry, we can conclude that two parallel lines whose slope are equal can never intersect.

On this note, for the functions described in the question, the functions only intersect when the slopes are different.

Additionally, the functions may intersect in the event of having equal y-intercepts.

Read more on slope and y-intercept;

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Answer:

1

Step-by-step explanation:

5^0 = 1.  Any base to the power 0 returns the value 1.

Answer:

A

Step-by-step explanation:

Answer:

x = - 1

Step-by-step explanation:

The axis of symmetry is a vertical line located at the midpoint of the zeros.

Equation is then

x = [tex]\frac{-5+3}{2}[/tex] = [tex]\frac{-2}{2}[/tex] = - 1 , that is x = - 1

Answer:

Step-by-step explanation:

[tex]a_1=-4\\\\a_2=a_{1+1}=a_1+3=-4+3=-1[/tex]

Answer:

The answer is 14

Step-by-step explanation:

Evaluate 13 + 6/ y when y = 6

We substitute 6 for y in the above expression

= 13 + 6/6

= 13 + 1

= 14

The answer to the the above question is 14

Answer:

6 square units

Step-by-step explanation:

b = 3

h = 4

[tex]Area = \frac{bh}{2} = \frac{(3)(4)}{2} = 6[/tex]

Answer:

6 units

Step-by-step explanation:

A=bh/2

4×3=12

12/2=6

Answer:

The opposite of 12 is -12.

Step-by-step explanation:

-12, -11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

All you have to do is do the negative version of that same original number.

Answer:

Hi! The answer to your question is m = -[tex]\frac{11}{9}[/tex]

Step-by-step explanation:

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Answer:

AC = 2

BC = [tex]2\sqrt{2}[/tex]

CD = 4

CF = 4

BD = [tex]2\sqrt{2}[/tex]

DE = 8

EF = [tex]4\sqrt{2}[/tex]

DF = [tex]4\sqrt{2}[/tex]

Step-by-step explanation:

Since all of these are isosceles triangles, it means both legs of every triangle are congruent to each other. So,

Given: AB = 2

Find:

AC = AB = 2

BC = [tex]2\sqrt{2}[/tex]

CD = 4

CF = CD = 4

BD = BC = [tex]2\sqrt{2}[/tex]

DE = 8

EF = [tex]4\sqrt{2}[/tex]

DF = EF = [tex]4\sqrt{2}[/tex]

Answer:

6

Step-by-step explanation:

number of ways to flip coin-2

number of ways to spin the spinner-3

2*3=6

6 different possible outcomes are there if he flips a coin and spins a spinner with three equal-sized sections.

A combination is a mathematical technique for determining the number of potential arrangements in a set of objects where the order of the selection is irrelevant. You can choose the components in any order in combinations. Permutations and combinations are often mistaken.

Caleb is designing a new board game, and is trying to figure out all the possible outcomes.

Outcome of Flipping a coin = 2 (Head or Tail)

and, Spinner had three equal sized section.

So, the number of possible outcomes

= 2 x 3

= 6

Thus, there 6 outcomes.

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Answer:

b

Step-by-step explanation:

Answer:

320

Step-by-step explanation:

960 ÷ 120 = 8

40 × 8 = 320