A parabola has a vertex at (-1,0) and opens down. What is the equation of the parabola?

Answer:

Question 1

Volume of a cylinder = πr²h

r= radius h= height

diameter = 2*radius

diameter = 2* 4cm= 8cm

Volume = π × 4² × 11

= 553.14cm³

Answer: its A

sorry if im wrong

The equation 890 = 1/3 B(46)  can be used to find the area of the circular base .

Area is the space enclosed  within the perimeter of the given shape.

It is given in the question that Area of the base of a volcano has to be determined.

The structure of a volcano is that of a Cone

Area of a conical structure is given by

V = (1/3) * height * (radius)²

890 = 1/3 (radius)²(46)

V = 890 h = 46

area of a circle = π (radius)²,

890 = 1/3 B(46)

If B = (radius)²

Therefore Option D is the correct answer

890 = 1/3 B(46)  equation can be used to find the area of the circular base .

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To show that ABC =DEF by AAS congruent postulate, (A) [tex]\angle A \cong \angle D[/tex]

The given parameters are:

AB = DE = 10

[tex]\angle C \cong \angle F = 30^o[/tex]

The above highlight show that one side and one angle of the triangle are congruent

To complete the AAS postulate, one other corresponding angle must be congruent.

From the figure, points A and D are corresponding points

Hence, to show that ABC =DEF by AAS congruent postulate, (A) [tex]\angle A \cong \angle D[/tex] must be true

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The reason needs to show the triangles are congruent by AAS is ∠A ≅ ∠D.

Two triangles are said to be congruent if their corresponding parts are congruent with each other.

Given that, triangles ΔABC, and ΔDEF, need to be congruent by AAS rule,

∠C ≅ ∠F, AB = DE, we need to find one more reason,

AAS rule :-

AAS or Angle Angle Side congruence rule states that if two pairs of corresponding angles along with the opposite or non-included sides are equal to each other then the two triangles are said to be congruent.

So, the reason must be  ∠A ≅ ∠D.

Hence, the reason needs to show the triangles are congruent by AAS is ∠A ≅ ∠D.

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Answer:1/6

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

51+1 = 52

Since 52 is even, obviously the answer is 2.

Hope this helps.

Good Luck

Answer:

-93

Step-by-step explanation:

it decreases by four every time, so take -4 times 22 and then subtract 5.

Answer:

98

Step-by-step explanation:

Angles in a triangle: 180

Supplementary Angles: 180

180-122=58

58+24=82

180-82=98

Answer:

28.5 ft

Step-by-step explanation:

The height of a ball is given by the equation ƒ(x) = −16x² + 45x + 2.5 where x is the tome the ball travels. To find the height of the ball after a seconds, we substitute a in place of x, the equation becomes:

ƒ(a) = −16a² + 45a + 2.5.

Therefore if the height of the ball is needed to be found after 2 seconds, we find f(2).

ƒ(2) = −16(2)² + 45(2) + 2.5 = -64 + 90 + 2.5 = 28.5 ft

f(2) = 28.5 ft

Answer:

5

Step-by-step explanation:

V= Bh

volume of figure A is 60, and the volume of figure B is half.

figure B:

B= 3*4

B= 12

60=12*h

5=h

the value of a is 5.

The value of a in the prism is 3 units.

In three-dimensional space,

a prism is a polyhedron where two ends are similar.

Given:

The volume of prism A is 60 cubic units,

and the volume of prism B is half the volume of prism A.

The base area of the prism B is 20 square units.

The volume of the prism,

V = Ba, where B is the base area and a is the height.

So,

60 = 20a

a = 3 units

Therefore, the value of a is 3 units.

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The complete question:

The volume of prism A is 60 cubic units, and the volume of prism B is half the volume of prism A. The base area of the prism B is 20 square units.

What is the value of a?

Answer:

t = 6 days

Step-by-step explanation:

We can model both cases with linear equations in the form:

y = ax + b

Sophie was on page 20 and she reads 10 pages per day, so her equation is:

S = 20 + 10t

Jackson was on page 50 and he reads 5 pages per day, so his equation is:

J = 50 + 5*t

The graph of those equations are in the image attached (The blue line is for Sophie and the orange line is for Jackson)

To find after how many days they will be on the same page, we can make S = J and then find the value of t:

20 + 10t = 50 + 5t

5t = 30

t = 6 days

Answer:

Step-by-step explanation:

3m^2(5m+8) + 5(5m +8)

(3m^2+5)(5m+8)

Answer: C

Step-by-step explanation:

Reflection in the x -axis:

A reflection of a point over the x -axis is shown. The rule for a reflection over the x -axis is (x,y)→(x,−y) .

Answer:

last one

Step-by-step explanation:

the domain includes all real numbers and the range is y>0

Answer:

1209 acres

Step-by-step explanation:

On the farm, 3/4 of the acre is planted with blue spruce trees.

There are 1612 acres on the farm. Therefore, the number of acres planted with blue spruce trees is:

3/4 * 1612 = 1209 acres

Answer:

A) The fish was out of water for 0.6875 seconds.

B) Maximum height = 5.672

Step-by-step explanation:

Height is modeled by;

y = -16t² + 11t

A) To find total time of the fish out of water, we need to find the x - intercept. That is the points where y = 0

So, 0 = -16t² + 11t

So the roots of this equation are;

t = 0 or 0.6875

Thus,the fish was out of water for 0.6875 seconds.

B) y = -16t² + 11t

The x coordinate of the vertex is at - b/2a

For y = -16t² + 11t

a = -16, b = 11, c = 0

So, -b/2a = -11/(2*-16) = 11/32

The maximum height will be at the y-coordinate of the vertex.

Thus, we need to find f(11/32)

f(11/32) = -16(11/32)² + 11(11/32) = 1.890625 + 3.78125 = 5.671875 ≈ 5.672

Answer: g(x)=(x+7)²-2

Step-by-step explanation:

For this problem, you will need to know what each part fo the function does. You can see that g(x) is the bottom function and f(x) is the to function. F(x) has traveled down to -2. You know that the y-intercept is -2. The only answer choice with -2 as y-intercept is g(x)=(x+7)²-2.

Answer:

g(x) =  (x + 7)^2  -2

Step-by-step explanation:

f(x) = (x + 7)^2

We are shifting the function down 2 units

f(x)  -b  where b is 2

g(x) = f(x) -2

g(x) =  (x + 7)^2  -2

Answer:

10/12

Step-by-step explanation:

6*2=12 so

5*2=10

Answer:

make them the same

Step-by-step explanation:

hope this helps

(19+7)(2×6+1)

Step-by-step explanation:

(19+7)/(2×6+1) = 2

26/13 = 2

2 = 2

Answer:

144m^3

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

trust me bro  i gotchu

Answer:

B

Step-by-step explanation:

Answer:

y=1/2x+5

Step-by-step explanation:

the perpendicular line equation's slope is a negative reciprocal, so the new equation's slope is 1/2. so now you have y=1/2x+b plug in (-4,3) to find b. so you will do 3=1/2(-4)+b. 3=-2+b and then you solve for b. you would get b=5. so, the new equation is y=1/2x+5

Answer:

36 like iphone only

Step-by-step explanation:

You know that 40 people like both so you can already get them out of the way. That leaves you with 60 people and if we are dividing them into 5ths then 1/5 = 12 people. If the ratio is 3:2 then you can just multiply 3 x 12 to get 36 and then 2 x 12 to get 24 and that equals 60 and added to your 40 who like both, you get 100 students.

Answer:

114.

Step-by-step explanation:

18 + 4 + 2 x 3 x 15 + 2

multiply the numbers 2 x 3 x 15 + 90

18 + 4 + 2 + 90 + 2

add the numbers : 18 + 4 + 2 + 90 + 2

= 114!

Answer:

18

Step-by-step explanation:

54/18=3

72/18=4

90/18=5

Answer:

18

Step-by-step explanation:

GCF of 54, 72, 90 is:

54÷3= 18

72÷4= 18

90÷5= 18

The GCF of 54, 72, and 90 is 18.

Answer:

a = 125°, b = 20°, c = 35°, d = 90°, e = 55°

Step-by-step explanation:

Quadrilateral PQRS is inscribed in a circle, therefore it is a cyclic quadrilateral.

PQ is diameter, SR is chord and PR is transversal such that:

PQ || SR... (given)

[tex] m\angle PRQ = 90°..(\angle \: inscribed \: in\: semicircle) \\

\huge \red {\boxed {\therefore d = 90°}} \\\\

m\angle RPQ= m\angle PRS .. (alternate \: \angle s) \\

\huge \purple {\boxed {\therefore c = 35°}} \\\\

In\: \triangle PQR, \\

c + d + e = 180°\\

35° + 90° + e = 180°\\

125° + e = 180°\\

e = 180° - 125°\\

\huge \orange {\boxed {\therefore e = 55°}} \\\\

a + e = 180°...(opposite \:\angle 's \: of \: cyclic \: quadrilateral) \\

a + 55°= 180°\\

a = 180°- 55°\\

\huge \blue {\boxed {a = 125°}} \\\\

In\: \triangle PSR, \\

a + b + 35°= 180°\\

125° + b + 35° = 180°\\

160° + b = 180°\\

b = 180° - 160°\\

\huge \pink {\boxed {b = 20°}}

[/tex]

Answer I think

:randomly survey six grade students in the school cafeteria

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Randomly surveying 6th graders in the school cafeteria would give jacob valid results because A wouldn't be reliable, because he just wants 6th graders, and B and D would be selective as it would be inside a football store, implying that most 6th graders in there would be tending towards football, and D would be inside a tennis shop, which would imply that most 6th graders there would prefer football. Therefore, the cafeteria would yield the most reliable results.

The solution for equation is at (-2, 0).

When an algebraic equation is graphed, it always results in a straight line since each term in a linear equation has an exponent of 1. For this reason, it is referred to as a "linear equation."

Both linear equations with one variable and those with two variables exist.

Given equations,

y = x + 2

y = x² + 5x + 6

substitute value of y in second equation

x + 2 = x² + 5x + 6

x² + 4x + 4 = 0

x² + 2x + 2x +4 = 0

x(x +2) + 2(x + 2) = 0

(x + 2)(x + 2) = 0

x = -2

and y = x + 2

y = -2 + 2 = 0

Hence, the solution of equation is at x  = -2 and y = 0.

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