QUESTION 3 3.1.1 If y= 2x2 - 1. What is the value of y when x = -2?​

Answer:

The rules for standard form are

Small numbers can also be written in standard form. However, instead of the index being positive (in the above example, the index was 3), it will be negative. The rules when writing a number in standard form is that first you write down a number between 1 and 10, then you write × 10(to the power of a number)

I hope this helps

Answer:

False

Step-by-step explanation:

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Answer:

6th term = 25

Step-by-step explanation:

3n + 7

3 x (6) + 7

18 + 7 = 25

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Answer:

[tex]25[/tex]

Step-by-step explanation:

[tex] Tn_{n} = 3n + 7 \\Tn _{6} = 3 n + 7 \\ = 3 \times 6 + 7 \\ = 18 + 7 \\ = 25[/tex]

Hope this helps you

Have a nice day!

Answer: $32.5

Step-by-step explanation:

Given

Greg needs 50 corns on the cobs

A package of 5 costs $3.25

For 50 corns, he needed 10 package

So, cost of 10 packages is

[tex]\Rightarrow 10\times 3.25\\\Rightarrow \$32.5[/tex]

Answer:

I think its hfbfjfbsobsxhhx

Answer:

1080 & 135

Step-by-step explanation:

I did it

Answer:

16.2m

Step by step:

b=20

angle= 40

h=x(let us considered)

now ,

tan =P/b

putting value.

tan40=x/20

x=20 tan40

x=16.2m

Answer:

1,002,014

Step-by-step explanation:

Answer:

7(nearest whole number)

7.2(1 decimal place)

Answer:

90

Step-by-step explanation:

The exterior angle theorem states that to find the exterior angle, you have to add the interior angles that you know. 60+30 = 90.

Answer:

Fraction of the book is each chapter = 1 / 24

Step-by-step explanation:

Given:

Fraction of book left to read = 1/4 book

Number of chapter left to read = 6 chapter

Find;

Fraction of the book is each chapter

Computation:

Total number of chapter in book = Number of chapter left to read / Fraction of book left to read

Total number of chapter in book = 4 x 6

Total number of chapter in book = 24 chapters

Fraction of the book is each chapter = Number of book / Total number of chapter in book

Fraction of the book is each chapter = 1 / 24

Answer:

The answer is below

Step-by-step explanation:

Sumaya’s Smoothie Store is planning to sell an extra-large size. The extra-large size will have three times the volume of the small size (the small size is (8,4) ). It will cost twice as much as the small size.

Which coordinate pair represents the volume and cost of the extra-large size?

Solution:

The coordinate plane is a plane that can be used to represent the position of a point. The plane consist of x axes and y axes. The position of a point is referenced from the origin.

The small size of a pizza is represented by the coordinate pair (8, 4) ⇒ (volume, cost)

Since the volume of the extra-large size will have three times the volume of the small size, hence:

Volume of extra-large size = 8 * 3 = 24

The cost of extra large is twice as much as the small size, hence:

Cost of extra large = 4 * 2 = 8

Therefore the coordinate pair that represents the volume and cost of the extra-large size is:

(24, 8)

Answer:

5

Step-by-step explanation:

there, it has to be a 5, L and M's distance is 5 units away

if this answer is wrong, i swear that i will give myself a warning and actually take it seriously

Answer:

5

Step-by-step explanation:

Point M is at 49 and Point L is at 44.

To get to one point from another, you would need to go 5 numbers to the right of point L or left of point M.

Hope this helps

Slope is the change in y over the change in x:

Slope = (30-0)/(3-0)

Slope = 30/3

Slope = 10

Answer:

The formula for slope is (y2-y1)/(x2-x1)

Hence, the answer will be:

(30-0)/(3-0)

=30/3

=10

Answer:

[tex]y=\frac{3}{2} x-11[[/tex]

Step-by-step explanation:

[tex]y-\frac{-7-3}{2} =\frac{-1}{\frac{-7-(-3)}{7-1} } (x-\frac{7+1}{2} )\\y+5=\frac{6}{4} (x-4)\\y=\frac{3}{2} x-11[[/tex]

Answer:

Step-by-step explanation:

(x - 3)(x + 6)

=x(x + 6) -3(x + 6)

=x*x + x*6 - 3*x - 3*6

=x^2 + 6x - 3x - 18

=x^2 + 3x - 18

[tex]\longrightarrow{\green{ \: {x}^{2} + 3x - 18 }}[/tex] 

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex](x - 3)(x + 6)[/tex]

➼ [tex] \: x(x + 6) - 3(x + 6)[/tex]

➼ [tex] \: {x}^{2} + 6x - 3x - 18[/tex]

➼ [tex] \: {x}^{2} +3x - 18[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\mathsf{\dfrac{9\times10^5}{10\times10^3}}[/tex]

[tex]\mathsf{10^5}[/tex]

[tex]\mathsf{= 10\times10\times10\times10\times10}[/tex]

[tex]\mathsf{= 100\times100\times10}[/tex]

[tex]\mathsf = 10,000\times10}[/tex]

[tex]\mathsf{=\bf 100,000}[/tex]

[tex]\mathsf{10^3}[/tex]

[tex]\mathsf{= 10\times10\times10}[/tex]

[tex]\mathsf{= 100\times10}[/tex]

[tex]\mathsf{= \bf 1,000}[/tex]

[tex]\mathsf{\dfrac{9\times100,000}{10\times 1,000}}[/tex]

[tex]\mathsf{9\times100,000 = \bf 900,000}[/tex]

[tex]\mathsf{10 \times 1,000 = \bf 10,000}[/tex]

[tex]\mathsf{\dfrac{900,000}{10,000}}[/tex]

[tex]\mathsf{= \bf 90}[/tex]

[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf 90}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

y = ( x-2)(x+7)

Step-by-step explanation:

y = x^2 + 5x - 14

What 2 numbers multiply to -14 and add to 5

-2 * 7 = -14

-2+7 = 5

y = ( x-2)(x+7)

Answer:

In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression.  

Step-by-step explanation:

Answer:

it is 12

Step-by-step explanation:

for n= 36 divided by 3.

Answer:

A function is shown. f(x) = x2 + 2x - 35 One of the zeros of the function is What is the other zero of the functions

Answer:

x = 10.7

y = 120°

Step-by-step explanation:

If two polygons are similar, their corresponding angles would be the same, while the ratio of their corresponding sides will be equal.

Therefore, the angles of the two polygons given are equal, while the ratio of their corresponding side length is equal.

Thus:

✔️Find x:

22/(x + 4) = 18/12

22/(x + 4) = 3/2

Cross multiply

(x + 4)3 = 2*22

3x + 12 = 44

Subtract 12 from each side

3x = 44 - 12

3x = 32

x = 32/3

x = 10.7

✔️Find y:

y + 60° = 180° (adjacent angles are supplementary)

y = 180 - 60

y = 120°

Answer:

I think it is the first one

Step-by-step explanation:

Answer:

Last option,

is correct (☑️)

Answer:

This is correct.

Step-by-step explanation:

Answer:

Yes...You are right... hope it helps

Answer:

c

Step-by-step explanation:

If it equals the double of one angle that means it is bisected in to 2 equal parts

Answer:

a quantity that can be expressed as an infinite decimal expansion is real number.This includes all integers and all rational and irrational numbers.It can be either positive or negative.it can be either rational and irrational but not both It is demoted by R .Then numbers which are not both rational and irrational are not real numbers.

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Answer:

$87.50

Step-by-step explanation:

If they split the money 1:7 this means they divided it into 8 portions. (Because 7+1=8). So do $100/8=12.5.

(You never specified who got 1 portion and who got 7, so I will assume Alex got the 7)

Let's say Jill got the 1 portion, she gets $12.50.

Let's say Alex got the 7 portion, he got $12.50 x 7 = $87.50

The amount Alex got is £12.5.

The ratio shows how many times one value is contained in another value.

Example:

There are 3 apples and 2 oranges in a basket.

The ratio of apples to oranges is 3:2 or 3/2.

We have,

Alex and Jill share £100 in a ratio of 1:7.

Total ratio = 8x

So,

Alex = 1x

Amount = 1x/8x x 100 = £12.5

Jill = 7x

Amount = 7x/8x x 100 = £87.5

Thus,

Alex got £12.5.

Learn more about ratios here:

https://brainly.com/question/2462048

#SPJ2

Answer:

option B

Step-by-step explanation:

Top right graph

Answer:

b

Step-by-step explanation:

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[tex]SI=\frac{P*R*T}{100}[/tex]

[tex]SI=\frac{8000*15*5}{100}[/tex]

     [tex]=Rs. 6,000[/tex]

Amount = [tex]8,000+6,000=Rs. 14,000[/tex]

Interest = [tex]Rs. 6,000[/tex] Amount = [tex]Rs. 14,000[/tex]

[tex]SI=\frac{P*R*T}{100}[/tex]

[tex]SI=\frac{6000*12*3}{100}[/tex]

     [tex]= Rs.2160[/tex]

Amount = [tex]6,000+2,160=Rs.8,160[/tex]

Interest = [tex]Rs. 21,600[/tex]  Amount = [tex]Rs.8160[/tex]

Gain: 6,000 - 2,160

Gain = Rs. 3,840

hope this helps......

Answer:

2054.43$ = 2054$

Step-by-step explanation:

Here, by analyzing the question we get;

Principal= 1000$

Time (In years) = 12

Rate (Annual) = 6%

Now;

First convert R into decimal= 0.06 rate per year

Now solving the equation for A:

A=Pe^(rt)

=1000(2.71828)^(0.06*12)

=$2054.43

If you have any questions, just ask me in the comments

Explanation:

Point N is at (1,3)

We apply the rule [tex](x,y) \to (x-4,y-3)[/tex] which will translate the point 4 units to the left and 3 units down.

The old x coordinate x = 1 becomes x-4 = 1-4 = -3

The old y coordinate y = 3 becomes y-3 = 3-3 = 0

The point N(1,3) moves to N ' (-3, 0)