Mathematics High School

Could someone please help?

Could Someone Please Help?

Answers

Answer 1

Answer:

1. 7% change increase

2. 27%change decrease

3. 39% change decrease

4. 29% change increase

Step-by-step explanation:

I hope this is right

Related Questions

helpppp plsssssssssssssssssssss quick

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The answer is b!!!!!!!!!!!!!!!!!!

please help me with this math problem, the question is on the picture that i attached, ill mark brainliest if the answer is correct. NO links!

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Sin is opposite/hypotenuse
SinA is 12/37

Please solve this quadratic equation:
3^2x -9 =0​

Answers

Answer:

[tex] {3}^{2} x - 9 = 0 \\ 9x = 9 \\ x = 1[/tex]

A graph is shown with x- and y-axes labeled from 0 to 6 at increments of 1. A straight line labeled A joins the ordered pair 2, 6 with the ordered pair 5, 0. Another straight line labeled B joins the ordered pair 0, 2 with the ordered pair 6, 6.

Part A: How many solutions does the pair of equations for lines A and B have? Explain your answer. (5 points)

Part B: What is the solution to the equations of lines A and B? Explain your answer. (5 points)

Answers

Answer:

A. one  B. (3, 4)

Step-by-step explanation:

1. A good graph can answer both parts (see attached image).

2. Write equations for the two lines and find a simultaneous solution.

Line A:  Slope from (2, 6) to (5, 0) is [tex]m=\frac{6-0}{2-5}=\frac{6}{-3}=-2[/tex]

Using point-slope form [tex]y-y_1=m(x-x_1)[/tex]

[tex]y-6=-2(x-2)\\y-6=-2x+4\\y=-2x+10[/tex]

Line B:  Slopt from (6, 6) to (0, 2) is [tex]m=\frac{6-2}{6-0}=\frac{2}{3}[/tex]

Using point-slope form, the equation for Line B is

[tex]y-2=\frac{2}{3}(x-0)\\y=\frac{2}{3}x+2[/tex]

To find the simultaneous solution, set the y's equal.

[tex]-2x+10=\frac{2}{3}x+2\\-6x+30=2x+6\\-8x=-24\\x=3[/tex]

Find y using either equation to get y = 4.

Penny is going to fly her plane to her sister's house, which is 544.32 miles away. Penny's airplane flies at an average speed of 672 miles per hour. How long does it take Penny to fly to her sister's house?

Answers

Answer:

0.81 hour

Step-by-step explanation:

Given data

Distance=  544.32 miles

Speed=  672 miles per hour.

We know that

Speed= distance/time

Substitute

672=  544.32/time

cross multiply

time*672= 544.32

time= 544.32/672

time= 0.81 hour

Graph the function
f(x)=(x-3)^2+2f(x)=(x−[tex]3)^{2}[/tex]+2

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I believe that’s what your asking for
Sorry if it doesn’t help

PLease help with this

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Answer:

huh

Step-by-step explanation:

please help meeee please​

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Answer: 2 root13

a^2 + b^2 = c^2

36 + 16 = c^2

52 = c^2

2 root13 = answer

find the area 10ft 2 1/2​

Answers

Answer:

if your trying to find the area of 10ft and 2 1/2 all you gotta do is turn the 2 1/2 in a decimal and multiply it by 10 which is 25

Step-by-step explanation:

Mr. Rockwell's class is holding a canned food drive for charity. Kim collected 10 more cans than Stephanie. Natasha collected twice as many cans as Kim. If they collected 130 cans altogether, how many cans did Kim collect?

Answers

Answer:

35 cans

Step-by-step explanation:

big brain

100 POINTS!! PLEASE HELP IM REALLY CONFUSED

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Answer:

1:

<A=½(arcJL)=½(70+120)=35+60=95°

[inscribed angle is half of central angle]

2:

<W=½arcVX=½(130)=65°

[inscribed angle is half of central angle]

3.

<E=½(arcDC)=½(90)=45°

[inscribed angle is half of central angle]

4.

<R=½(arcXZ)=½(110+62)=86°

[inscribed angle is half of central angle]

5.

<B=½(arc DC)=½×104°=52°

[inscribed angle is half of central angle]

6.

<K=90°

[inscribed angle in a diameter is complementary]

<K+<J+<L=180°(sum of interior angle of a triangle]

<L=180°-90°-53°=37°

again

arc JK=2×<L=2×37=74°

Links will be reported!

You randomly choose one of the marbles. Without replacing the first marble, you choose a second marble. There are 4 marbles. One yellow, one red, one green, and one blue. Name two ways you can find the total number of possible outcomes.

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The way I see it, there are 16 possible outcomes. I figured this out by there being 4 marbles and 4 different colors. I multiply 4 times 4 and get 16. You could get red and blue, blue and green, etc. It all depends on which color you grab first and which one you grab second. Yes getting green and yellow is technically the same as getting yellow and green but at one point you grabbed green first and the other you grabbed yellow first.

In order to run a roller coaster at the fair more then 27 people need to ride. If 12 people were in line,which number sentence would show how many more people would need to be in line to ride the roller coaster a x+12<27 b x+ 12 >27 c 27-12>x d 12-x>27

Answers

Answer:

B

Step-by-step explanation:

Since it says there has to be MORE than 27 people, 12 + x should be more than 27

I am confused. I believe it is 5(x^2+2)=45

Here is the problem: 5 times the square of a number and 2 is 45.​

Answers

Answer:

Step-by-step explanation:

We must follow order of operations rules here.

Let the number be x.  Then 5x^2 + 2 = 45.  No parentheses needed here.

Then 5x^2 = 45, and x = ±9

What are the x-intercepts of y = x^2 + 5x - 1?

Answers

Answer:

hope this helps:) have a good day

(Help me please!) What are the 2 closest integers to 0.001 (if you say 0.000 and 0.002, just telling you its wrong I tried, anyways, PLS HELP!)

Answers

Answer:

1 and 0

Step-by-step explanation:

Zero is an integer

describe the correlation in the scatterplot below.
The first lines options are- positive linear, positive linear with no outliers, negative linear, negative linear with no Outlier, nonlinear, and no

The second line options are- decrease Obama increase , show no pattern and follow a non-linear pattern ​

Answers

Answer:

no and show no pattern

Step-by-step explanation:

with scatter plots like these, there is no exact information at all, what so ever

no and no show pattern

An urban planner wants to create a city block. The city block will be 50 feet by 75 feet. What will the dimensions of his scale drawing be if the drawing has a scale factor of 1 cm = 12.5 ft?

Answers

Answer:

The dimensions of his scale drawing = 4 cm by 6 cm

Step-by-step explanation:

An urban planner wants to create a city block. The city block will be 50 feet by 75 feet. What will the dimensions of his scale drawing be if the drawing has a scale factor of 1 cm = 12.5 ft?

From the above question

12.5 ft = 1 cm

Hence

For 50 feet

12.5 feet = 1 cm

50 feet = x

Cross Multiply

12.5 × x = 50

x = 50/12.5

x = 4 cm

For 75 feet

12.5 feet = 1 cm

75 feet = x

Cross Multiply

12.5 × x = 75

x = 75/12.5

x = 6 cm

The dimensions of his scale drawing = 4 cm by 6 cm

Pls answer the question. If u put that link here I will report you pls don’t

Answers

Answer:

EF = 68°

Step-by-step explanation:

If 2 chords of a circle are congruent then the corresponding arcs are congruent.

The central angle FDG is equal in measure to the arc that subtends it

arc FG = 68°

Given EF ≡ FG , then

arc EF ≡ arc FG, so

arc EF = 68°

Please help, Does this graph show a constant or variable rate of change?

Answers

Answer:

constant

Step-by-step explanation:

Answer:

pretty sure it's a variable change

Step-by-step explanation:

The value is decreasing by a different number each time, in the same interval

Clare buys with a normal price of $24 but saves 6$ by using cupons. For what percentage off is this cupon?

Answers

Answer:

25% off.

Step-by-step explanation:

Here is a link that can help you in the future.

https://www.calculators.org/math/percentage.php

please...............​

Answers

Answer: A and D

Step-by-step explanation:

For Anya's birthday her father gave out colorful birthday hats that were cone shaped. Anya was very happy that day. The opening of the bottom of the hat was 5 cm and the height of the cone was 7 cm. Anya fills her hat with candy. What is the approximate volume, in cm^ ^ 3 , of candy?​

Answers

Anya will have 5cm of candy sorry if it’s
Wrong

A sphere has a volume of approximately 24,416.64 cubic inches (using 3.14 for ).


The diameter of the sphere is ___ inches.

Answers

Answer:

diameter = 36 in.

Step-by-step explanation:

V = 4π r^3/3

24416.64 = (4(3.14) r^3)/3

73249.92 = 12.56 r^3

r^3 = 5832

r = cube root of 5832 = 18

diameter = 36 in.

Simplify the expression. 3x - (2x + 4) + 5

Answers

Answer:

x

+

1

Step-by-step explanation:

Answer:

= x + 1

Step-by-step explanation:

Marcos sells snow cones in the summer. He uses a cone with a radius of 1.5 inches and a height of 5 inches. If he fills the snow cone to the rim with ice before pouring on the syrup. About how much ice will it take to fill the cone?​

Answers

Answer: [tex]11.78\ in.^3[/tex]

Step-by-step explanation:

Given

Radius of cone [tex]r=1.5\ in.[/tex]

Height of cone [tex]h=5\ in.[/tex]

Ice required to fill the cone=Volume of cone

The volume of a cone is

[tex]V=\dfrac{1}{3}\pi r^2h[/tex]

Put values

[tex]\Rightarrow V=\dfrac{1}{3}\times \dfrac{22}{7}\times 1.5^2\times 5=11.78\ in.^3[/tex]

visitors spend 1/3 of their time waiting in line for rides. Of the santos family spends 53/4 hours at the park how long do they wait in line

Answers

Answer: 1 11/12 hours

Step-by-step explanation:

Since visitors spend 1/3 of their time waiting in line for rides and the Santos family spends 5¾hours at the park.

The tune spent waiting in line will be calculated by multiplying ⅓ by 5¾. This will be:

= ⅓ × 5¾

= ⅓ × 23/4

= 23/12

= 1 11/12 hours

Therefore, they'll wait in the park for 1 11/12 hours

PLEASE HELP
5.
If t= -3, then 3t^2 +5t +6 equals
A. -36
B. -6
c. 6
D. 18

Answers

Answer:

D

Step-by-step explanation:

substitute t=-3 in the equation

3(-3) squared +5(-3)+6=18

Step-by-step explanation:

According to the question , value of t = (-3) . So on directly putting t = (-3) in expression we have ,

[tex]\tt \to 3t^2 +5t+6 \\\\\tt\to 3(-3)^2+5(-3)+6 \\\\\tt\to (3)(9)-15 +6 \\\\\tt\to 27 - 15 +6 \\\\\tt\to \boxed{\orange{\tt 18 }}[/tex]

2. ALMN and APMN are shown below. What additional information is necessary to prove
ALMN = APMN by HL?


Help please!!!

Answers

Answer:

The additional information necessary is option;

D. [tex]\overline {MN}[/tex] ⊥  [tex]\overline {LP}[/tex]

Step-by-step explanation:

From the given figure, we have;

Given that ML ≅ MP,

The Hypotenuse Leg HL theorem of congruency is used to prove that a given number of right triangles based on the lengths of their hypotenuse and one of the legs. It states that two or more right triangles are congruent if they have equal lengths of both their corresponding hypotenuse side and one leg

To prove that ΔLMN and ΔPMN are congruent by HL, we will also be required to prove that ΔLMN and ΔPMN are right triangles

For ΔLMN and ΔPMN to be right triangles, the angles, ∠LNM and ∠PNM should be right angles = 90°

With ∠LNM = ∠PNM = 90°, then, line [tex]\overline {MN}[/tex] is perpendicular to line [tex]\overline {LP}[/tex] or  [tex]\overline {MN}[/tex] ⊥  [tex]\overline {LP}[/tex]

Therefore, the additional information necessary to prove that ΔLMN ≅ ΔPMN by HL is [tex]\overline {MN}[/tex] ⊥  [tex]\overline {LP}[/tex].

Isaac has a points card for a movie theater. He receives 45 rewards points just for signing up. He earns 11.5 points for each visit to the movie theater. He needs 160 points for a free movie ticket.

Answers

Answer: 10 visit

Step-by-step explanation:

Given

45 Points earned by signing up

11.5 points earned for each visit to the theatre

160 points are needed for a movie ticket

Suppose, after x visit he gets enough points to buy a movie ticket

[tex]\therefore 160=45+11.5x\\\Rightarrow 115=11.5x\\\Rightarrow x=10[/tex]

So, after 10th visit, he earns a movie ticket

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