Unit Test Review
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2
4
5
Six hundred pictures are taken at a photo shoot. Twelve percent of the pictures are black and white. Which equation can be
used to find the number of black and white photos?
600-6 100
12+
62
О
12 x 6 72
100x6600
600-12 50
800-1006
O
600+12 612
O 100+ 12 " 112
g
4:49 PM
6/27/2020

Answers

Answer 1

Answer:

The answer is : 0.12 x 600 = 72 or the equivalent : 600 x 12/100 = 72

Your list of possible answers ended up a bit scrambled for me to identify which one it is.

Step-by-step explanation:

The number of black and white pictures can be obtained by multiplying the total number of pictures taken (600) by the decimal form of 12% = 12/100 = 0.12. That is:

Number of B&W pictures = 0.12 x 600 = 72


Related Questions

Pleaseeee help❤️I would appreciate itttt

Answers

Answer:

The correct option are;

i) The line segment must connect an _1_ (open) circle at point B to an _1_ (open) circle at point D.

ii) The line segment must connect an _1_ (open) circle at point B to a _2_ (closed) circle at point C

Step-by-step explanation:

The parameters given are;

Domain: [tex]\{x|-4<x\leq 4, x \in R \}[/tex]

Range: [tex]\{y|-4\leq y< 4, y \in R \}[/tex]

Given that to indicate less than (<) on a graph of an inequality, we draw an circle over the point in reference while to indicate less than or equal to (≤) we draw an circle over the point in reference and shade the point, therefore we have;

Given that x > -4, and ≤ 4, the points B and C satisfies the conditions

Given that the y-coordinates are y ≥ -4, and y < 4, the points D and C satisfies the conditions

Where:

Point B = (4, 4) satisfies x only

Point C = (4, -4) satisfies x and y

Point D = (-4, -4) satisfies y only

Therefore, in order to draw a line segment between two points;

i) The line segment must connect an _1_ (open) circle at point B to an _1_ (open) circle at point D.

ii) The line segment must connect an _1_ (open) circle at point B to a _2_ (closed) circle at point C.

What is the equation for calculating the electrical force, Fe, between two charges? Fe = kStartfraction q Subscript 1 baseline times q Subscript 2 baseline over d Endfraction. Fe = Startfraction q Subscript 1 baseline times q Subscript 2 baseline over d Superscript 2 baseline Endfraction. Fe = kStartfraction q Subscript 1 baseline times q Subscript 2 baseline over d Superscript 2 baseline Endfraction. Fe = kStartfraction q Subscript 1 baseline times q Subscript 2 baseline over d Endfraction Superscript 2 baseline.

Answers

Answer:

[tex]F=\frac{K Q1Q2}{d^2} \\[/tex]

Step-by-step explanation:

According to coulombs law "the force of attraction or repulsion between two charges Q1 and Q2 in a given medium is directly proportional to the product of their charges and inversely proportional to the square of the distance separating them"

[tex]F=\frac{K Q1Q2}{d^2} \\[/tex]

where

k = constant of proportionality ([tex]9.05*10^9[/tex])

Answer:

it is c

Step-by-step explanation:

(44143)5*(23023)5
please hurry up

Answers

The guy On top of me is correct hoped this helped

The graphs show the distances traveled by two cars moving at constant rates which unit rate matches these 2 graphs pls helpppp

Answers

Answer:

i think is (0.5,25)

Step-by-step explanation:

becuse at the time they have the same speed

Answer:

z

Step-by-step explanation:

z

Angela is following this recipe to make biscuits.
Angela uses 1.8 l of syrup.
How much margarine is needed in kg?

Recipe: Makes 10 biscuits
150 g margarine
180 g sugar
225 ml syrup
225 g oats
40 g sultanas
Asapppp

Answers

Answer : The amount of margarine needed is 1 kg.

Step-by-step explanation :

First we have to convert volume of syrup from mL to L.

Conversion used:

1 L = 1000 mL

or, 1 mL = 0.001 L

So, 225 mL = 0.225 L

Now we have to calculate the amount of margarine needed.

As, 0.225 L of syrup needed 150 g of margarine

So, 1.8 L of syrup needed [tex]\frac{1.5L}{0.225L}\times 150 g=1000g[/tex] of margarine

Amount of margarine needed = 1000 g = 1 kg     (1 kg = 1000 g)

Therefore, the amount of margarine needed is 1 kg.

mZ3 = 64
m_4 = 106°
and
4
2
3
1
What is
mZ1,​

Answers

Answer: m∠1=42°

Step-by-step explanation

For this problem, we can separate the triangle into 2 separate triangles to solve for m∠1.

We know that m∠4 is 106°. ∠2 and ∠4 are supplementary angles. You can see that they make a straight line of 180°. We can use this fo find ∠2.

∠2+∠4=180

∠2+106=180

∠2=74°

Now that we know ∠2 is 74°, we can use that to solve for m∠1.

We know that the measures of the angles in a triangle equal to 180°. For the triangle at the bottom, we see ∠3, ∠2, ∠1. Since we know ∠3 and ∠2, we can find ∠1.

∠3+∠2+∠1=180

64+74+∠1=180

138+∠1=180

∠1=42°

Given the function f(x) = -5|x + 1| + 3, for what values of x is f(x) = -12?

Answers

Answer:

x = 2 or x = -4

Step-by-step explanation:

-5|x + 1| + 3 = -12

Add -3 to both sides.

-5|x + 1| = -15

Divide 5 into both sides.

|x+1| = 3

Possibility 1:

x + 1=3

x = 2

Possibility 2:

x + 1 = - 3

x = -4

Answer:

Step-by-step explanation:

This is our absolute value equation for which we want the values of x that make it true:

-5 | x + 1 | + 3 = -12. Subtracting 3 from both sides gives us

-5 | x + 1 | = = -15. Divide both sides by -5 to get

| x + 1 | = 3

This says, in words, "how many units from 3 is -1 on a number line?"

We have the following 2 equations:

x + 1 = 3 and x + 1 = -3

Solving the first one for x:

x = 2

Solving the second one for x:

x = -4

Both 2 and -4 are 3 units from -1 on a number line.

I WILL GIVE BRAINLIST enter the correct answer in the box. Write your answer in the form y=mx+b using the appropriate inequality symbol in place of the equal sign

Answers

Answer:

y > 4x + 1

Step-by-step explanation:

Look at the graph. The y-intercept is 1, so we have

y = mx + 1

Now let's find the slope.

Go from the intercept 4 units up and 1 unit to the right. You are at point (1, 5) which is a point on the graph.

slope = m = rise/run = 4/1 = 4

The equation of the dashed line is

y = 4x + 1

The shaded area is "above" the line, so the inequality is

y > 4x + 1

Answer:

y > 4x + 1

Step-by-step explanation:

Hope this is right.

A bag contains green yellow and orange marbles the ratio of green marble to yellow marble is 2 : 5 the ratio of yellow arbles to orange marbles is 3 : 4 what is the ratio of green marbles two orange marbles

Answers

Answer:

G:O = 3:10

the ratio of green marbles to orange marbles is 3:10

Step-by-step explanation:

Let G, Y and O represent green, yellow and orange marbles respectively.

Given;

the ratio of green marble to yellow marble is 2 : 5

G:Y = 2:5

G/Y = 2/5

the ratio of yellow arbles to orange marbles is 3 : 4

Y:O = 3:4

Y/O = 3/4

the ratio of green marbles to orange marbles G:O;

G/O = G/Y × Y/O

Substituting the values;

G/O = 2/5 × 3/4

G/O = 3/10

G:O = 3:10

the ratio of green marbles to orange marbles is 3:10

If Jake does a job in 15 hours less time than Brianna, and they can do the job together in 10 hours, how long will it take each to do the job alone? It will take Jake ______ hours It will take Brianna _______ hours

Answers

Answer:

It will take Jake 0 hours and It will take Brianna 15 hours

Step-by-step explanation:

Let x be the no. of hours taken by Brianna to complete work alone

We are given that Jake does a job in 15 hours less time than Brianna

So,Jake work alone in hours =x-15

We are given that  they can do the job together in 10 hours

So, [tex]\frac{1}{x-15}+\frac{1}{x}=\frac{1}{10}\\\frac{x+x-15}{(x-15)x}=\frac{1}{10}\\x=3,15[/tex]

So, Brianna complete work in 15 hours

So, Jake work alone in hours =x-15=15-15=0

So, It will take Jake 0 hours and It will take Brianna 15 hours

which graph shows the solutions to the inequality ?

Answers

Answer:

the last option is the correct answer

Step-by-step explanation:

the symbol ≥ means greater or equal to. so the direction of line must be heading to the right and must start at -1.

which of the following is the solution 4|x+3|≥8

Answers

Answer: x≥-1 or x≤-5

Step-by-step explanation:

First, divide both sides by 4 to get rid of the 4:

4|x+3|≥8

|x+3|≥2

Next, we know that for |a|≥b, a≥b or a≤-b. Therefore:

|x+3|≥2

x+3≥2     or      x+3≤-2

x≥-1                  x≤-5

Polygon A B C D E has 5 sides. Which is a correct description of the polygon?

Answers

Answer:

b

Step-by-step explanation:

Answer:

Pentagon

Step-by-step explanation:

Which statements are true?
(look at picture)​

Answers

Answer:

D is true, E is true, F is true

Step-by-step explanation:

Hello,

n is an odd number it means that n = 2a+1 where a is integer

A

[tex]n^2-1=(2a+1)^2-1=4a^2+4a+1-1=4a(a+1)[/tex]

this is not an odd number

B

[tex]n(n-1)=(2a+1)2a[/tex]

this is not an odd number

C

[tex](n-1)^2=(2a+1-1)^2=4a^2[/tex]

this is not an odd number

D

[tex]n^2+2=(2a+1)^2+2=4a^2+4a+1+2=4a^2+4a+3= 2(2a^2+2a+1)+1[/tex]

so this is an odd number

E

[tex]n(n-2)=(2a+1)(2a-1)=4a^2-1=4a^2-2+1=2(2a^2-1)+1[/tex]

so this is an odd number

F

[tex](n-2)^2=(2a+1-2)^2=(2a-1)^2=4a^2-4a+1 = 2(2a^2-2a)+1[/tex]

this is an odd number

hope this helps

Please answer within 5 minutes for brainliest!!!!

Answers

Answer:

y=4x-9

Step-by-step explanation:

2)If triangle RPQ is a right angled triangle at Q. If PQ = 5cm and RQ = 10 cm,find (i) sin ^2 P (ii) cos ^2 R and tan R (iii) sin P X cos P (iV) sin ^2 P –cos ^2p

Answers

Answer:  (i) 1       (ii) 3/4 , √3/3       (iii) 0       (iv) 1

Step-by-step explanation:

ΔRPQ is 1 30°-60°-90° triangle because RQ = 2PQ , where

∠R = 30°∠P = 90°∠Q = 60°

(i) sin² (90°) = 1² = 1

[tex]\text{(ii)}\ \cos ^2(30^o)= \bigg(\dfrac{\sqrt3}{2}\bigg)^2=\dfrac{3}{4}[/tex]

[tex].\quad \tan (30^o)=\dfrac{1}{\sqrt3}\bigg=\dfrac{\sqrt3}{3}[/tex]

(iii) sin (90°) × cos (90°) = 1 × 0 = 0

(iv) sin² (90°) - cos² (90°) = 1² - 0² = 1

Help Multiple Choice Easy Question I Cant Figure Out!

Answers

Answer:

10

Step-by-step explanation:

The hypotenuse of a triangle is the side that is opposite to the right angle, meaning that none of its endpoints form the right angle. In this case, the hypotenuse is LN which is 10.

*5 points* BRAINLIEST TOO
The image of parallelogram PQRS after a reflection across Line W Y is
parallelogram P'Q'R'S: SS'= 10. What is the length of SX?

3
6
5
12

Answers

Answer:

6

Step-by-step explanation:

Let line WY be the line of reflection

RR has the midpoint at Z.

In other words, the line:  =

SS is another line

It has a midpoint at X. In other words, line SX =

If SS =  12, then the line SX =

Because the shape is a parallelogram, it means that RZ = SX = 6

If 8 km = 5 miles, convert 720 km into miles.

Answers

Answer:

450 miles

Step-by-step explanation:

5 miles = 450 miles

8 km = 720 km

Answer:

450 mi

Step-by-step explanation:

8km=5mi

720km/8km=90

8km (90)=5mi(90)

5mi(90)

The ratio of doctors to nurses in a hospital is 4 to 10. How many doctors are there if the numbers of nurses at the hospital are 150?

Answers

Answer:

60

Step-by-step explanation:

i used a proportion. 4 to 10 is equal to 60 to 150

Lowell has a credit card that uses the adjusted balance method. For the first
10 days of one of his 30-day billing cycles, his balance was $1360. He then
made a purchase for $470, so his balance jumped to $1830, and it remained
that amount for the next 10 days. Lowell then made a payment of $740, so
his balance for the last 10 days of the billing cycle was $1090. If his credit
card's APR is 28%, which of these expressions could be used to calculate the
amount Lowell was charged in interest for the billing cycle?

Answers

Answer: (0.28/365 •30)(620)

Step-by-step explanation:

The equation y= ax? describes a parabola. If the value of a is positive, which
way does the parabola open?

Answers

Answer:

upwards or to the right

Step-by-step explanation:

If the a value is positive, then the parabola opens upward or to the right, and if the a value's negative, it opens down or to the left. Hope this helps!

Points C, D, and G lie on plane X. Points E and Flie on
plane Y
Which statements are true? Select three options.
There are exactly two planes that contain points A,
B, and F.
X
B
There is exactly one plane that contains points E, F,
and B.
A
The line that can be drawn through points C and G
would lie in plane X.
The line that can be drawn through points E and F
would lie in plane Y.
The only points that can lie on plane Y are points E
and
E

Answers

Answer:2nd, 3rd and 4th

Step-by-step explanation:

Add the polynomials: (-5 - 7x^2); (5 + 7x^3) *
0 - 14x15
O 10 + 14x^3
0 -7x^2 + 7x^3
OO

Answers

Answer:

[tex] - 7 {x}^{2} + 7 {x}^{3} [/tex]

Step-by-step explanation:

[tex]( - 5 - 7 {x}^{2} ) + (5 + 7 {x}^{3} ) \\ = - 5 - 7 {x}^{2} + 5 + 7 {x}^{3} \\ = - 7 {x}^{2} + 7 {x}^{3} [/tex]

what does y+2=5 solve

Answers

[tex] \sf{ y + 2 = 5}[/tex]

[tex] \rightarrow \sf{y = 5 - 2}[/tex]

[tex] \rightarrow \sf{y = 3}[/tex]

Answer:

Y+2=5 will give you 3  (solved for y)

Step-by-step explanation:

the graph of F(x), shown below, has the same shape as the graph of G(x)=x^2. but it is shifted up 4 units and to the right 2 units. What is its equation

Answers

Answer:

Step-by-step explanation:

The graph of [tex]y=x^2[/tex] in vertex form is [tex]y=(x-h)^2+k[/tex] where h and k, the vertex, is (0, 0). If we shift the parabola right or left, or up or down, the h and k values take on that reflection. If we move up 4, k goes from a value of 0 to a value of 4; if we move right 2 units, h goes from a value of 0 to a value of 2. Putting that together in work (aka vertex) form:

[tex]y=(x-2)^2+4[/tex]

(c) The price of a business ticket for the same journey with another airline is $2240.
(i) The price of a first class ticket is 70% more than a business ticket.
Calculate the price of this first class ticket.
Å

Answers

First you have to calculate 70% of $2240...

[tex] = \frac{70}{100} \times 2240[/tex]

[tex] = 7 \times 224[/tex]

[tex] = 1568[/tex]

Here's your answer girlfriend ❤️

Please follow me...........

Simple problem

1=95
2=?
3=?
4=?

Answers

Answer:

2)85

3)95

4)85

Step-by-step explanation:

all of the insides has to equal 360

help please
2 decks of cards 1st deck has red(R) and black (B)
2nd deck has hearts(H) clubs(C) diamonds(D) and spades(S) how many different combinations are there

Answers

Answer:A) (1 x 4) + (1 x 4) = 8

There are 8 possible combinations

B) BC:RD:RS:BH:BS:RH:BD:RC

Step-by-step explanation:

Hope it helps. Step by step in on the top. :)

The difference of two numbers is 5, the numbers are in the ratio 3:4. So the numbers are 15 and 20 True or False

Answers

Answer:

True

Step-by-step explanation:

We need to verify whether 15 and 20 are the correct solution to the rule of "The difference between the 2 number is 5 and the number are in the ratio 3 : 4". Let's see,

First rule → The difference between the 2 numbers is 5

20 - 15 = 5 ⇒ Correct

Second rule → The numbers are in the ratio 3 : 4

15 : 20 ( ÷ 5 to both ratio's ) 3 : 4 ⇒ Correct

Answer:

True

please see the attached picture for full solution

hope it helps...

Good luck on your assignment..

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