Please Help!

Which equation can be used to solve for b?
​

Answer:

1/18

Step-by-step explanation:

Spinner: 1 out of 8

Even number: 4 out of 9

1/8x4/9=4/72 = 2/36 = 1/18

Answer:

an=1*2.5^(n-1)

=2.5^(n-1)

Step-by-step explanation:

Complete question below:

What value, written as a decimal, should Lena use as the common ratio? Lena is asked to write an explicit formula for the graphed geometric sequence. On a coordinate plane, 3 points are plotted. The points are (1, 1), (2, 2.5), (3, 6.25).

Solution

Point (1, 1), (2, 2.5), (3, 6.25).

a=1

ar=2.5

ar^2=6.25

From ar and ar^2

r=6.25/2.5

=2.5

r=2.5

an=ar^(n-1)

Therefore, the explicit formula is

an=1*2.5^(n-1)

=2.5^(n-1)

Answer:

4.24 blocks

hope this helps :)

The correct answer should theoretically be 4.24

Because the triangle has a vertical reflection across the center (AD)

Answer:

D) 12z -32

Step-by-step explanation:

Simplify to create an equivalent expression.

-4(z+3)-4(5-4z)}−4(z+3)−4(5−4z)

Choose 1 answer:

A) A -24z-32

B) B 12z+8

C) C 12z-32

D) D 12z+32

-4(z+3)-4(5-4z)

= -4z -12 -20 + 16z

= 12z -32 (D)

Answer:

[tex]\boxed{Option \ 2}[/tex]

Step-by-step explanation:

[tex]6*10^8\\=> 600000000[/tex]

[tex]3*10^6\\=> 3000000[/tex]

Dividing both

=> 600000000 ÷ 3000000

=> 200

So,

[tex]6*10^8[/tex] is 200 times larger than [tex]3* 10^6[/tex]

Answer:

[tex]\boxed{\mathrm{Option \: 2}}[/tex]

Step-by-step explanation:

[tex]6 \times 10^8 = 600000000[/tex]

[tex]3 \times 10^6 =3000000[/tex]

[tex]\frac{600000000}{3000000} =200[/tex]

6 × 10⁸ is 200 times larger than 3 × 10⁶.

Answer:

Step-by-step explanation:

f(1)=45*4/5

=9*4

=36

Answer:

Step-by-step explanation:

Mary received 726 votes.

Answer:

Hey there!

4 1/5 · 7 2/3= 32 1/5

Hope this helps :)

Answer:

32 1/5

Step-by-step explanation:

4 1/5 * 7 2/3

Change to improper fractions

( 5*4+1)/5 * ( 3*7+2)/3

21/5 * 23/3

Rewriting

21/3 * 23/5

7 * 23/5

161/5

Change back to a mixed number

5 goes into 161  32 times  with 1 left over

32 1/5

Answer:

26 is what I'm guessing

Answer:

90601

Step-by-step explanation:

we have to find  smallest number by which 2408 should be multiplied to get a perfect cube.

First lets find prime factor of 2408 and power these prime factors have

2408 = 2*1204 = 2*2*602 = 2*2*2*301= 2*2*2*7*43

thus,

2408 = 2^3*7*31

we know that a cube is a number raised to the power three

in 2408

2 has a power of three

but 7 and 31 and there is power of one,

thus we need to make

power of 7 and 31 three by multiplying

7 with 7*7

and 31 with 31*31

thus,

2^3*7*31*7*7*31*31 is the minimum cube value for this number

2^3*7*31*7*7*31*31 = 2^3*7^3*31^3 = 2408 * 7^2*31^2 = 2408*90601

Thus, smallest number which should be multiplied with 2408 to make it a perfect cube is 90601

Answer:

–3 and –3

Step-by-step explanation:

x² + 6x = – 9

Rearrange

x² + 6x + 9 = 0

Multiply the first term i.e x² and last term i.e 9 together. The result is 9x².

Next, we shall find two factors of 9x² such that when we add them together, the result will be the same as the 2nd term i.e 6x in the expression above.

The factors are 3x and 3x.

Next, we shall replace 6x with 3x and 3x in the equation above as shown below:

x² + 6x + 9 = 0

x² + 3x + 3x + 9 =0

Factorise

x(x + 3) + 3(x + 3) = 0

(x + 3)(x +3) = 0

x + 3 = 0 or x + 3 =

x = – 3 or x = – 3

Therefore, the solutions are –3 and –3

Answer:

Step-by-step explanation:

people in building ---- x

children --- y

men + women + children = x

(3/7)x + (5/8)(4/7)x + y = x

3x/7 + 5x/14 + y = x

times 14

6x + 5x + 14y = 14x

14y = 3x

y + 220 =x

sub into the other one

14y = 3(y+220)

11y = 660

y = 60

then 14(60) = 3x ---> x = 280

So we have 280 people in the building.

check: 3/7 of 280 are men = 120

leaving 160 women and children

5/8 of these ot 100 are women

so we have 120 men, 100 women and 60 children!

Answer:

H1 H2 H3 H4 H5 H6

T1 T2 T3 T4 T5 T6

Step-by-step explanation:

When we roll a die we get 1,2,3,4,5,6

When get flip a coin get get H or T for heads or tails

The top right lists the possible outcomes, one for the heads or tails and one of the die outcomes

H1 H2 H3 H4 H5 H6

T1 T2 T3 T4 T5 T6

Answer:

H1 H2 H3 H4 H5 H6

T1 T2 T3 T4 T5 T6

Step-by-step explanation:

Answer:  see image

Step-by-step explanation:

Count how many spaces the vertex is away from the line x = -1.  Then place that vertex the same distance on the other side of the line x = -1.

Answer:

7.5ml

Step-by-step explanation:

20/10=15/x

20x=10(15)

20x=150

x=150/20

x=7.5

So you’d add 7.5ml of NaCl to the 1,000ml IV.

Answer:

[tex]\frac{n}{4}-1[/tex]

Step-by-step explanation:

If we have a pizza that has [tex]n[/tex] slices and we want to split it between 4 friends, then each friend will get [tex]\frac{n}{4}[/tex] slices.

Now, Harris is one of those friends so he receives  [tex]\frac{n}{4}[/tex]  slices, but he eats one less than he receives. Therefore, we subtract one from this expression to get our final answer of [tex]\frac{n}{4}-1[/tex].

Hope this helped!

Answer:

(n/4 - 1) slices

Step-by-step explanation:

The pizza would be divided into n slices, which in turn would be split among 4 people:

   n slices

----------------- = (n/4) slices per person

  4 people          

Harris must have eaten (n/4 - 1) slices.

Answer:

The histogram would be "flat" or "uniform."

Step-by-step explanation:

For the drawings to be "fair," all numbers must have an equal probability of being selected.

Answer:

The histogram would be uniform

Step-by-step explanation:

for the histogram to be uniform,all the numbers should have an equal probability of being selected.thus, all the numbers should have the same opportunity of being selected for the winning numbers

Step-by-step explanation:

Hi, there!!

I hope you mean sin2x=2sinx . cosx

so, let's begin in a simple way; by adding, alright:

sin2x= sin(x+x) (as 2x=x+x).

now, let's use compound formula for sin,

so, we get:

sin (x+x)= sinx.cosx + cosx. sinx (as sin(A+B)=sin A. cosB + cosA . sinB)

or, sin (x+x)=2sinx.cosx (adding both).

Therefore, sin 2x = 2sinx. cosx.

Hope it helps..

Answer:

Step-by-step explanation:

2x = 2sinx cosx is not an identity.  An identity is "always true," whereas a conditional equation is true only for specific value(s) of the unknown.  Double check to ensure that you have copied down this problem correctly.

Answer:

3, 17

Step-by-step explanation:

1st number = x

2nd number = 4x+5

x+4x+5=20

5x=15

x=3

1st number = 3

2nd number = 4(3)+5=12+5=17

Answer:

9 over 7 end fraction three-fourths

Step-by-step explanation:

The length of the 7 smaller boards will be ''Four-thirds'' (4/3 feet).

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

Diego cut 7 smaller boards of equal length from a board that is 9 1/3 feet long.

Now,

Since, Diego cut 7 smaller boards of equal length from a board that is 9 and one-third feet long.

So, The length of the 7 smaller boards = 9 1/3 ÷ 7

                                                            = 28/3 ÷ 7

                                                            = 28/3 × 1/7

                                                            = 4/3 feet

Thus, The length of the 7 smaller boards will be ''Four-thirds'' (4/3 feet).

Learn more about the divide visit:

https://brainly.com/question/25018554

#SPJ6

Answer:2

26x + y = 23 → y = 23 – 6x.

7x + y = 25 → 7x + (23 – 6x) = 25 → x + 23 = 25 → x = 2

Answer:

  $2300

Step-by-step explanation:

Carlos's needs will include ...

These total $2300.

Carlos's needs amount to $2300 per month.

Answer:

$950

This is because he needs groceries, utilities, and insurance.

Answer:

Answer A

Step-by-step explanation:

We see that ABC is similar to DEF. Pay attention to the order of these letters. The order that they read (left-to-right) is the order that they are similar. For example, AB is similar to DE. Despite being different triangles, they are both the first two letters in the triangle. So, knowing this, we can conclude that answer choice A is correct.

Answer:

The answer is A

Step-by-step explanation:

Answer:

5 is a constant. (it has no variables)

x + 2 is not a constant. It does, however, have two terms, x and 2.

(terms are seperated by addition/subtraction)

This rules out a and b.

As for c... 5(x+2) implies multiplication, which would be a product, not a sum.

The product of a constant factor 5 and a 2-term factor x+2

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

5(x + 2)

The constant factor is 5. x + 2 is not constant.

The brackets represent multiplication.

Answer:

Center : (0,-2), R=6

Step-by-step explanation:

x² + y² + 4 y = 32

x² + y² +4 y+4=36

x² + (y+2)²=36

Center : (0,-2), R=6

Answer:

50 mph

Step-by-step explanation:

225 in 4.5 Hours

1 Hour - 50 miles

(225 ÷ 4.5 = 50)

Hope this helps.

Answer:

50mph

Step-by-step explanation:

To figure this out you would just have to divide the number of miles which is 255 by the number of hours which is 4.5 and you would get 50mph.

Answer:

they both = 100

Step-by-step explanation:

Answer 120

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

2(7)-(-4)/3

(14+4)/3

18/3

=6

If it's right can i get brainliest.

Answer:

D) 6

Step-by-step explanation:

Plug in the values of a & b

[tex]\frac{/2a/-b}{3}= \frac{/2*7/-[-4]}{3}\\\\=\frac{/14/ + 4}{3}\\\\=\frac{14+4}[3}\\\\=\frac{18}{3}\\\\=6[/tex]