13. ¿Cuál es el vértice de la parábola y=2x^2-16x+2?
A) (4.-30)
B) (4,0)
C) (-4,38)
D) (-4,-30)
E) (5,2)

Answer:

20

Step-by-step explanation:

Given data

Let the number of magic tricks be x

we are told that she knows 70% of card trick which is 14 card tricks

hence we have

70/100*x= 14

0.7x= 14

x= 14/0.7

x=20

Hence the number of magic tricks she knows is 20

Answer:

da.mn im sorry....not rlly sorry bc i didnt do anything to u but yh.

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

NO they are not equivalent

Answer:

16

Step-by-step explanation:

Answer:

-3/4* -5/7 = -15/28??

Step-by-step explanation:

Answer is correct!

And don’t worry! You make sense!

Sorry if I’m asking too much, but can I have Brainliest??

Answer:

30 - (20 ÷ x) ⋅ 4

Step-by-step explanation:

Answer:

the slope is 3/2

Answer: [tex]4.14\ \text{pints}[/tex]

Step-by-step explanation:

Given

Keiko uses 6.9 Pints of blue and white paint

If the fraction of blue paint is [tex]\frac{2}{5}[/tex], then thr fraction of white paint is

[tex]1-\dfrac{2}{5}=\dfrac{3}{5}[/tex]

Amount of white paint is

[tex]\Rightarrow \dfrac{3}{5}\times 6.9=4.14\ \text{pints}[/tex]

Answer: You have to provide the options in order for people to help.

Step-by-step explanation:

Answer:

radius = 7.5 cm

Step-by-step explanation:

Since M is the midpoint of the chord AB then OM is perpendicular to AB

Using Pythagoras' identity in right triangle OMB with hypotenuse OB, the radius of the circle, then

OB² = OM² + MB² = 4.5² + 6² = 20.25 + 36 = 56.25 ( take square root of both sides )

OB = radius = [tex]\sqrt{56.25}[/tex] = 7.5

Answer:

LETTER C. PO 40 ang sagot

The statement (D) "the fewest students prefer black Model A1 calculators" is correct.

It is defined as the frequency that can be evaluated by the two-way frequency table. Usually, we can obtain this frequency by dividing the frequency that is not in the total frequency cell to total frequency.

There is the fewest value is 0.05

More students prefer Model C3 calculators than Model A1 calculators, mathematically,

0.30 > 0.45 (false)

More students prefer black calculators than white calculators, mathematically,

0.35 > 0.65 (false)

Similarly, statement third is also false.

Thus, the statement (D) “the fewest students prefer black Model A1 calculators” is correct.

Learn more about the conditional relative frequency here:

brainly.com/question/8358304

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Answer:

median is 8 it's always the middle, play the elimination game

Answer:

[tex]\frac{5}{21}[/tex]

Step-by-step explanation:

1)  [tex]\frac{3}{7} *\frac{5}{9}[/tex]

Reduce the numbers with the greatest common factor : 3

2)  [tex]\frac{1}{7} *\frac{5}{3}[/tex]

Multiply the fractions.

3)  [tex]\frac{5}{21}[/tex]

Answer:

A is 15, B is 75, and C is 30

Step-by-step explanation:

Answer:

a.

graph this on desmos

y=15x

you learn 15 new vocab words per week

b.

75 words in 5 weeks

c.

30 more words

Step-by-step explanation:

Answer:

we have

C=(2,-1)

B=(-2,3)

since

BC is hypotenuse

length of BC=√[(-2-2)²+(3+1)²]=√32=4√2 units is your answer

Answer:

250

Step-by-step explanation:

Every number is multiplied by 5

2 x 5 = 10

10 x 5 = 50

50 x 5 = 250

The value of z in the given arrangement is 2 m.

Similar triangles are the triangles that look similar to each other, but their sizes might not be exactly the same.

Also,

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion.

Given that, an engineer needs to find the length of a beam to support the beam holding the wall, the two beams are perpendicular to one another, and a=4 m and b=1 m, we need to find z.

So, here we will use the concept of similar triangles,

According to the definition the corresponding sides are in proportion.

So, we get,

z/a = b/z

z² = 4

z = 2

Hence, the value of z in the given arrangement is 2 m.

Learn more about similar triangles, click;

https://brainly.com/question/14926756

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p ² + 6 is even if p ² is even (the sum of two even numbers is even), and this happens only if p itself is even, i.e. if p = 2 since 2 is the only even prime.

All other primes p are odd, so p ² would be odd, and adding 6 would not change that (odd + even = odd).

Answer:94 m^2

Step-by-step explanation:

surface area equation for rectangle is 2*(a*b + a*c + b*c)

where a=4 b=5 and c=3

so substitute in all numbers and get:

Surface Area = 2×(4×5 + 4×3 + 5×3)

do the maths and got a solid 94 meters

(I squared because in this equation you are multiplying numbers that equal the area of a surface and not the whole volume which would be cubed)

Answer:

275 m^3

Step-by-step explanation:

The volume of a triangular pyramid is V=(1/3)Ah, where A is the area of the triangular base and h is the height.

First, let's find A, the area of the base. The area of a triangle is bh/2, where b is the base and h is the height.

In this question, 5 is the base and 15 is the height, so A=5*15/2=75/2.

Now we know A is 75/2, so let's go back to the formula for the volume of a pyramid. We are given h is 22, so

V=(1/3)(75/2)*22=275

Answer:

solution is in attachment

hope it helps

Answer:

The answer is D

Step-by-step explanation:

Volume of a cube = edge x edge x edge

volume of one cube= 4x4x4=64

64x3= 192

Answer:

The answer is 30c^3y

Step-by-step explanation:

The LCM is the smallest number that all the numbers can divide in.

Answer:

No

Step-by-step explanation:

First subtract 16 from both sides

13 is not a solution to the original inequality.

Answer:186

Step-by-step explanation: