Mathematics High School

someone please help me

Someone Please Help Me

Answers

Answer 1

Answer:

Option B  (2 in the blank)

Step-by-step explanation:

Given function:

f(x) = 2x² - 5x + 7

The leading term is 2x², the leading coefficient is 2, this is positive.

The graph opens upward.

Correct option is B.

False, because 2 > 0

Answer 2

Option B is correct trust me my guy

Related Questions

Write a real-life word problem that matches the equation ( 1 5 ) ÷ 3 =

PLS HELP

i honestly need help with this. i must create a word problem that uses the problem stated above. how do i make this a word problem. please excuse if my typing is a little off. thanks

Answers

Answer:

55555555555555555566666

Answer:

omg lol okay i love this:

Step-by-step explanation:

one day bob, billy, and sara went to the store to buy cookies.

they bought a box of 15 cookies.

THERE ARE TWO WAYS THIS STORY CAN GO:

NUMBER ONE:

bob, billy, and sara decided to split the bill. each cookie was one dollar. they each payed $5.

NUMBER TWO

when they got home, bob, billy, and sara decided to eat the cookies. they didn't know how to spilt them :(

they each took one cookie until they had an even amount. each child got 5 cookies.

THE END LOL I LOVE THIS

I need some help with this important question it's for a important grade pls someone really help me with this question.​

Answers

Answer:

45º

Step-by-step explanation:

A triangle always has 180º

C is a right angle which is 90º. Proof is because of the square.

So now we have 90º left and 2 angles left.

90 ÷ 2 = 45

So your answer is 45º

MARK BRAINLY

Make sure to hit the THANKS button :D

  V

  V

Answer:

36

Step-by-step explanation:

17 is the hypotenuse.

For angle A, 10 is the opposite leg.

sin A = opp/hyp

sin x = 10/17

x = sin^-1 10/17

x = 36

en una encuesta a 200niños sobre el programa de T.V. que más les gusta ver ,se encontró que a 30 niños ven dibujos animados 45 niños miran películas animadas solamente 55niños miran programas sobre animales 38 niños miran programas sobre animales y dibujos animados 32 niños miran los tres tipos de programas encuentra el porcentaje de cada grupo​

Answers

Answer:

15% de los niños solo ven dibujos animados, 22.5% solo ven películas animadas, 27.5% ven programas sobre animales, 19% miran programas sobre animales y dibujos animados, y 16% ve los tres tipos de programas.

Step-by-step explanation:

Dado que en una encuesta a 200 niños sobre el programa de TV que más les gusta ver se encontró que 30 niños ven dibujos animados, 45 niños miran películas animadas, 55 niños miran programas sobre animales, 38 niños miran programas sobre animales y dibujos animados y 32 niños miran los tres tipos de programas, para determinar el porcentaje de cada grupo​ se deben realizar los siguientes cálculos:

30/200 = 15/100 = 15%

45/200 = 22.5/100 = 22.5%

55/200 = 27.5/100 = 27.5%

38/200 = 19/100 = 19%

32/200 = 16/100 = 16%

Así, 15% de los niños solo ven dibujos animados, 22.5% solo ven películas animadas, 27.5% ven programas sobre animales, 19% miran programas sobre animales y dibujos animados, y 16% ve los tres tipos de programas.

Si la temperatura de un día de invierno esta en 6°C y baja 10°C, ¿cuanto marcara el termómetro?

Answers

Answer:

el termómetro sería de 4 grados Celsius negativos

Step-by-step explanation:

¡Espero que esto ayude!

how to write "The product of a number and -2 increased by 10"? ​

Answers

(x•-2)+10 I’m pretty sure
Possible ways

2(x) + 10

x • 2 + 10

x(2) + 10

Please help meeee!!!!!!

Answers

Answer:

23

Step-by-step explanation:

basta isagot mo lamg ah

Using the graph , determine the coordinates of the vertex of the parabola

Answers

Answer:

(-4,-4)

Step-by-step explanation:

Delta math

According to graph, the coordinates of the vertex of the parabola are (-4,-4).

What is parabola?

"A parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped."

Vertex of parabola

"The vertex of a parabola is the point at the intersection of the parabola and its line of symmetry. For a parabola whose equation is given in standard form, the vertex will be the minimum (lowest point) of the graph and the maximum (highest point) of the graph.

After analysing the graph, the vertex of the parabola are (-4,-4)

Learn more about parabola here

https://brainly.com/question/21685473

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Find the area of the following shape.

Answers

Answer:

Area = 9 cm²

Step-by-step explanation:

The shape given is a kite.

Area of a kite = ½(D1*D2)

Where,

D1 = 6 cm

D2 = 3 cm

Therefore:

Area = ½(6*3)

Area = ½(18)

Area = 9 cm²

Please help fast! !! Quick ! What is the area ?

Answers

6(12) + 13(5) + 4(4) = 153 in^2

hope this helps!! :)

Answer:

153

Step-by-step explanation:

break it up in pieces 6x12 + 4x4 + 13x5 = 153

Help, I'm confused. Will mark brainliest.

Answers

the answer would be c

Simplify and answer please

Answers

Answer:

its 2 to the 9th power

Step-by-step explanation:

It’s 2 to the 9th power


Select the three expressions that are equivalent to

-2(4 - 3x) + (5x - 2).


A. 2x - 10

B. 11x - 10

C.-8 + 11x - 2

D. -8 - 11x - 2

E. -8 + 6x + 5x - 2

F. -8 - 3x + 5x - 2

What mathematical process did you use to
simplifying the expression above?

Answers

Answer:

B

Step-by-step explanation:

-2(4 - 3x) + (5x - 2)=

-8+6x+5x-2=11x-10

when there is a number in front of () you multiple every number that is inside the ()

Explain why the triangles are similar. Then find the value of x.

Answers

Answer:

well u can find triangles in the shape and they are the same shape just smaller

Step-by-step explanation:

combine like terms

3x+4x= 7x

14-1= 13

then divide by 7

1.85(keep going)  i think THINK this is right im sorry if it isn't

.
What is the final amount if 1010 is decreased by 6% followed by a further 9% decrease?
Give your answer rounded to 2 DP.

Answers

Answer: $863.95 I do believe

Step-by-step explanation:

Describe the translations of the function f(x) = - ½ (x – 3)2 + 4.
a. reflection, stretch, right 3 and up 4
b. reflection, shrink, right 3 and up 4
c. reflection, shrink, right 3 and down 4
d. shrink, right 4 and down 3

Answers

Answer:

b. reflection, shrink, right 3 and up 4

Step-by-step explanation:

- : reflection across x axis

1/2 : compression vertically by a factor of 1/2

x - 3: shift right 3 units

+ 4: up 4 units

9. Select a set of corresponding angles.
A Angles M and D
B Angles B and L
C Angles C and J
D Angles K and A

Answers

Answer:

A. Angles M and D

Rearrange x=3g+2 to make g the subject

Answers

Step-by-step explanation:

Given

x = 3g + 2

Making g as a subject then

3g = x - 2

g = ( x - 2 ) / 3

Hope it will help :)❤

Answer:

g=(x-2)/3

Step-by-step explanation:

Monica deposits ​$300 into a savings account that pays a simple interest rate of ​%3.3. Paul deposits ​$400 into a savings account that pays a simple interest rate of ​%2.8. Monica says that she will earn more interest in 1 year because her interest rate is higher. Is she​ correct? Justify your response.

Answers

Answer: The formula for calculating simple interest is given by :

S.I =

For Monica

S.I = 300 x 3.4 x 1 / 100

S.I = $10.2

For Paul

S.1 = 400 x 2.4 x 1 / 100

S.I = $9.6

Therefore : Monica earned more interest

Step-by-step explanation:

Chad complained to his friend that he had five equations to solve for homework. Are all of the homework problems equations? Justify your answer.

Answers

Answer:

no , 1 , 3 and 4 are expressions as they don't have an equal sign .

A survey asked 12 students how many portable electronic devices they have in
their homes. The results are shown in the line plot below.
Based on the data in the line plot, calculate the following.
SHOW YOUR WORK! Each question is worth 2 points.
a) Mean (Round your answer to the nearest tenth.)
b) Median
c) Mode
d) Range
e) What percentage of the students have more than 3 portable electronic
devices in their home? Give your answer as a fraction, decimal, and percent.

Answers

Answer:

should be either b or c

Step-by-step explanation:

Answer:

Mean: 4.6666666

Mode: 5.5

Range: 6

75%

Step-by-step explanation:

Two groups of students were asked how far they lived from their school. The table shows the distances in miles:


Group A (distance in miles) 1 1.5 3.03 3.2 2.8 1.5 1.8 2.5 2.2
Group B (distance in miles) 2 2.5 3.23 1.3 1.8 2.4 3 1.5 1.8


Which statement best compares the mean distances for the two groups?
It is equal for Group A and Group B.
It is greater for Group B than Group A.
Its value for Group A is double the value for Group B.
Its value for Group B is double the value for Group A.

Answers

Answer:

B

Step-by-step explanation

add all numbers then divide by the number of numbers and you get the means

Answer:

B

Step-by-step explanation:

8 - 5xt-8х - 5x
how do I solve this?​

Answers

Answer:

[tex]8 - 5xt - 13x[/tex]

Step-by-step explanation:

1) Collect like terms.

[tex]8 - 5xt + ( - 8x - 5x)[/tex]

2) Simplify.

[tex]8 - 5xt - 13x[/tex]

Therefor the answer is 8 - 5xt - 13x.

Kenneth has 45 Pokemon cards. He gave 3/9 of his cards to his friend as a random act of kindness. How many cards did he give his friend? m​

Answers

Answer:

15 pokémon cards

Step-by-step explanation:

45*3 /9= 135/9 = 15

Or you can simplify

3/9=1/3

45*1/3=15

Answer:

15

Step-by-step explanation:

45/9=5 5*3=15

I divide 45 by 9 to see how much card 1/9 is

Put these numbers in descending order.
0.98
0.925
0.88
0.7

Answers

The descending values of the numbers is 0.98 > 0.925 > 0.88 > 0.7

Given data ,

Let the numbers be represented as A

Now , the value of A is

A = { 0.98 , 0.925 , 0.88 , 0.7 }

And , arranging in the descending order means from the greatest to the least value

So , the value of A is 0.98 > 0.925 > 0.88 > 0.7

Hence , the descending order is 0.98 > 0.925 > 0.88 > 0.7

To learn more about descending order click :

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There are 230 cal in 4 ounces of a type of ice cream how many calories are in 6 ounces of that ice cream

Answers

There are 345 cal in the 6 ounces of that ice cream

Answer:  345 cal

Step-by-step explanation:

Solution 1:

230/4 = x/6

4x = 6(230)              use cross multiply

4x = 1380

x = 345 cal

Solution 2:

Cal in 1 ounces: 230/4 = 57.5cal/ounces

Cal in 6 ounces: 57.5cal/ounces x 6 = 345 cal

The school band is having a car wash to raise money. There goal is to collect $150. So far they have earned $10 each from three families and $5 each from 15 families.How much more money do they have to earn to reach their goal?

Answers

they’ve already earned $105 so they need $45 more to reach their goal

hey guy i need help on this

Answers

Answer:

14

Step-by-step explanation:

Answer:

14

Step-by-step:

[tex](12 - 9)^{2} + \frac{15}{3} \\ (3) ^{2} + \frac{15}{3} \\ 9 + \frac{15}{3} \\ 9 + 5 \\ = 14[/tex]

Kathryn bought a magazine for $5 and eight erasers. She spent a total of $45. How much did each eraser cost?

Answers

The answer to your question is 17

A hemispherical tank is filled with water and has a diameter of 15 feet. If water weighs 62.4 pounds per cubic foot, what is the total weight of the water in a full tank, to the nearest pound?

Answers

Answer:

55135 lbs (rounded to the nearest pound)

Step-by-step explanation:

​diameter of tank = 15 ft

Radius = 15/2 =7.5

volume of hemisphere = 2/3 ×π× 7.5³=883.5729

total weight of water = 62.4 × 883.57 = 55134.768

55134.768 rounded to the nearest pound is 55135 lb

♥ Hope this helped ♥

What measure of center should we use to describe the invasive crab problem in the mid-Atlantic region? Median, Mode or Mean

Answers

Answer:

i would go with Mean. Although I’m not entirely sure since the question seems pretty vague

Step-by-step explanation:

Answer:

Its the mean!

Step-by-step explanation:

I got it right on I-Ready!:))

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