Using the discriminant, the following quadratic equation y=-3x^2+7x+6 has ___ solutions
A.2
B.1
C.0

Answer:

9.647×10^7

Step-by-step explanation:

The decimal is moving to the left so the 7 is positive.

First, you find the rate at which Jeffery types.

110 divides by 2.75. This makes 40.

Then to find the amount of words he types in 4.25 minutes,

40 x 4.25. This makes 170.

So Jeffery can type 170 words in 4 1/4 minutes.

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Answer:

s has an x-coordinate of 4

Step-by-step explanation:

the coordinate is (4,-5)

Answer:

x=5

Step-by-step explanation:

3x+8=2x+13

x+8=13

x=5

Answer:

(-1, 9)    (he x value is placed first).

Step-by-step explanation:

y = -3x + 6

y = 9

Substitute y = 9 into the first equation:

9 = -3(x) + 6

-3x = 9 - 6

-3x = 3

x = -1.

Answer:

B) A and D

Step-by-step explanation:

Below sea level already implies negative.

And on a number line, it should be -500

Answer:

it is 70 on usatestprep.

Step-by-step explanation:

x + 40 = 2x + 10

x = 30

So, ∠5 = 2x + 10 = 2(30) + 10 = 70

Answer:

The answer is C.) 70

Step-by-step explanation:

Corresponding angles are congruent. So, set the angles equal to each other and solve for x.

x + 40 = 2x + 10

x = 30

So, ∠5 = 2x + 10 = 2(30) + 10 = 70°

The interior angle of a regular hexagon is 120°. As two hexagons share a side, [tex]\( x \)[/tex] equals 120°.

In the given diagram, two regular hexagons share a common side, and an interior angle marked as [tex]\( x \)[/tex] is formed by the sum of the interior angles of the two hexagons. The interior angle of a regular hexagon is [tex]\( \frac{{180^\circ \times (n-2)}}{n} \)[/tex], where [tex]\( n \)[/tex] is the number of sides. For a hexagon [tex](\( n = 6 \))[/tex], this angle is [tex]\( \frac{{180^\circ \times (6-2)}}{6} = 120^\circ \)[/tex].

Considering the interior angles of both hexagons and the angle [tex]\( x \)[/tex], the equation [tex]\( 120^\circ + 120^\circ + x = 360^\circ \)[/tex] arises, as the sum of angles around a point is 360°. Solving for [tex]\( x \) yields \( x = 120^\circ \).[/tex] Therefore, the measure of angle [tex]\( x \)[/tex] in the diagram is 120°.

This solution demonstrates the application of the interior angle formula for a regular hexagon and the consideration of the total angle around a point, resulting in the determination that [tex]\( x \) is indeed \( 120^\circ \).[/tex]

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Answer:

3.9

Step-by-step explanation:

Answer:

v=23160.24

Step-by-step explanation:

v= r^2 * h * π

19.6 ^2 = 384.16                                                               r = d/2

384.16 * 19.2 * 3.14                                                          39.2 / 2 = 19.6

23160.24

Hope this isn't too confusing!

Answer:

The answer is A)

Step-by-step explanation:

A)-15+1=14

B)0+12=12

C)1+11=12

Answer:

There fore the probability that the counters are blue is [tex]\frac{15}{39}[/tex]

Step-by-step explanation:

There are a total of 14 red counters and 39 in total. The total of red counter can be represented as a fraction of [tex]\frac{14}{39}[/tex]. To find out the number of blue counter we subtract 14 from 39. This gives us 25. This is [tex]\frac{15}{39}[/tex]. Therefore the probability that the counters are blue is

Answer:

25/39

Step-by-step explanation:

The total is 39

Red=14

So to determine blue,it will be

39-14=25

So blue will be 25

So to determine the probability for picking blue

It will be

25/39

Since there's no common number that can divide the two

The final answer is 25/39

The missing side length in the triangle with a hypotenuse of 85 and perpendicular of 84 is 13.

To find the missing side length a in the right triangle, you can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

So, in this case, we have:

[tex]\[ \text{hypotenuse}^2 = \text{perpendicular}^2 + \text{base}^2 \][/tex]

Given:

- Hypotenuse ( c ) = 85

- Perpendicular ( b ) = 84

- Base ( a ) = ?

Substituting the given values into the Pythagorean theorem equation:

[tex]\[ 85^2 = 84^2 + a^2 \][/tex]

[tex]\[ 7225 = 7056 + a^2 \][/tex]

Now, subtract 7056 from both sides:

[tex]\[ 169 = a^2 \][/tex]

To solve for a, take the square root of both sides:

[tex]\[ a = \sqrt{169} \][/tex]

a = 13

So, the missing side length ( a ) is 13.

Therefore, the correct answer is option D: 13.

a. -7  < |-9|

b. 2 > -2

c, |-5| = |5|

Answer: A: <

B: >

C: =

Step-by-step explanation: that is the absolute value, you find the absolute value and then see which is bigger or smaller

Answer:

Area of a triangle formula is 1/2 x base x height

Area of the garden = 1/2 x 25 x 10 = 125 square feet.

1 bag covers 10 square feet, divide total area by 10"

125 / 10 = 12.5

She will need to buy 13 bags.

Answer:

d= r/t

Step-by-step explanation:

i dont know if this is what youre looking for because i cant see the expression options but maybe it would be 6=r/30

The total cost of her haircut was 28 dollars

step by step:

(percentage) 15 x 6 = 90

4.20 x 6 =25.2

(perscentage) 15 divided by 3 = 5

4.20 divided by 3 = 1.4

1.4 + 1.4 = 2.8

25.2 + 2.8 =28

Final answer:

The total cost of the haircut before adding the tip was $28.00, found by setting up an equation where 15% of the total cost is equal to the $4.20 tip and solving for the total cost.

Explanation:

To calculate the total cost of the haircut that resulted in a $4.20 tip given at the rate of 15%, we need to set up a proportion where 15% of the total cost equals $4.20.

Step 1: Represent the unknown total cost of the haircut by the variable x.

Step 2: Set up the equation representing the tip as 15% of the total cost (0.15x = $4.20).

Step 3: Solve for x by dividing $4.20 by 0.15.
x = $4.20 / 0.15
x = $28.00

Therefore, the total cost of the haircut before adding the tip was $28.00.

[tex]\text{The constant term is the term that doesn't have a variable in it}\\\\\text{As you can see in the expression 24xy -5yz + 82z - 62, the only term}\\\text{that doesn't have a variable is -62}\\\\\text{This means that -62 would be your constant term}\\\\\boxed{\text{Constant term: -62}}[/tex]

Answer:

x=9

Step-by-step explanation:

3.5x - 11 = 20.5

Add 11 to each side

3.5x - 11+11 = 20.5+11

3.5x = 31.5

Divide each side by 3.5x

3.5x/3.5 = 31.5/3.5

x =9

Answer:

x=9 (don't look at explanation)

Step-by-step explanation:

Let's solve your equation step-by-step.

3.5x−11=20.5

Step 1: Add 11 to both sides.

3.5x−11+11=20.5+11

3.5x=31.5

Step 2: Divide both sides by 3.5.

3.5x

3.5

=

31.5

3.5

x=9

Answer:

x=9

Answer:

the answer is benito or 2

Step-by-step explanation:

Answer:

benito

Step-by-step explanation:

100% edge 2020! :)))

Answer:

28.5 units squared

Step-by-step explanation:

8x3 is the bottom rectangle and added 3x3x0.5 cuz it is a triangle. Add the areas and u get 4.5+24 or 28.5 units squared

Answer:

Option c: -v(t) = 25000(0.975)

Step-by-step explanation:

Kindly check the attached file for explanation

To represent the number of visitors to the Booneville History Museum t years after 1980, the correct function is D-v(t) = 25000(1.025).

To represent the number of visitors to the Booneville History Museum t years after 1980, we can use the formula v(t) = 25000(1 - 0.025)^t. This is because the number of visitors decreases by 2.5% each year. The term (1 - 0.025)^t represents the decay factor where t is the number of years after 1980.

Therefore, the correct function to represent the number of visitors to the Booneville History Museum t years after 1980 is D-v(t) = 25000(1.025).

Answer:

Option A.

Step-by-step explanation:

The given system of equations is

[tex]x-4y-1=0[/tex]

[tex]x+5y-4=0[/tex]

The given equations can be rewritten as

[tex]x=4y+1[/tex]

[tex]x=4-5y[/tex]

Using comparison method, compare the values of x.

[tex]4y+1=4-5y[/tex]

Therefore, the correct option is A.

Answer:

number 1:

4y +1 = 4 - 5y

Replace the variable x with 1 in the expression

f(1)=5(1)−(1)+1

f(1) = 5

Replace the variable x with 1 in the expression.

g(1)=−3⋅1

g(1) = -3

Multiply 5 by −3

.

−15⋅1

Multiply −15

by 1

.

−15

Thus, the answer is -15

I am unsure about this answer, I have doublechecked it several times.  Please take this with a grain of salt

Answer:

B, C, E are true

Step-by-step explanation:

A = l*w

The original rectangle is 6 by 4  with A = 24

The 1st enlargement = 6*3 by 4*3

                                   18 by 12  with A = 216

The second enlargement is 18*3 by 12*3

                                              54 by36 with A =1944

A.The area of the first enlargement is 72 square inches.

False it is 216

B.The area of the second enlargement is 1,944 square inches.

True

C.The area of the second enlargement is (3 squared) squared times the original area.

216/24 =9  True

D.The area of the second enlargement is 3 times the area of the first enlargement.

1944/24 = 9  False

E.The ratio of the area of the first enlargement to the area of the original equals the square of the scale factor.

The scale factor is 3 3^2 =9 216/24 =9

True

If you cut a sphere diagonally or along any of its diameters, you will always get a circle as the plane figure because all diameters of a sphere are of equal length.

In the field of mathematics, specifically in solid geometry, if Jackie created a diagonal cross section cut on a sphere, the plane figure that she would have discovered is a circle.

The concept behind this is that a sphere is a perfectly symmetrical three-dimensional figure. When we make a cross sectional cut along any diameter of the sphere (which is what Jackie did by making a diagonal cross section), we will always reveal a circular plane figure irrespective of the direction of this cut because all diameters of a sphere are of equal length, thus ensuring the cut is always a circle.

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A diagonal cross-section cut on a sphere will reveal a circle.

When Jackie made a diagonal cross-section cut on a sphere, she discovered a circle. Regardless of the angle or position of the cut, the intersection of a plane and a sphere always results in a circular shape. This fundamental geometric property arises from the symmetrical nature of spheres, where every cross-section manifests as a circle.

Thus, Jackie's diagonal cut revealed a circular plane figure, showcasing the inherent relationship between spheres and circles in geometry.

Answer:

x² + (y + 4.3)² = 131

Step-by-step explanation:

Equation of a circle:

(x - h)² + (y - k)² = r²

(x - 0)² + (y - -4.3)² = (sqrt131)²

x² + (y + 4.3)² = 131

Answer:$14701

Step-by-step explanation:

1) at the end of the first year the account will be 1*(12 000)+0,07*(12 000)=1,07*12 000,

2) at the end of the second year 1*(1.07*12 000) + 0.07*(1.07*12 000) = 1.1449*12 000,

3) at the end of the third year 1*(1,1449*12 000) + 0.07*(1,1449*12 000) = 1.225*12 000 = 14,700.516 = 14701

Answer: $14701