Can someone help me with Case 4?

Answer:

False

Step-by-step explanation:

-(-21) is positive 21 since there are 2 negative signs, and -21 is negative, therefore they are not the same.

Hope this helps!

Answer:

False. It is equal to 21.

Step-by-step explanation:

-(21) would equal -21

However,

- (- 21) equals 21

The two negatives "cancel" each other out.

Answer: False. It is equal to 21.

Answer:

Step-by-step explanation:

No there is no difference because in a decimal the zero's don't matter, they can go on infinitely but if the numbers above zero are the same and in the same order then the zero's don't make any difference.

Answer:

3*16=48 girls (further explination below)

Step-by-step explanation:

80/(2+3)=16, so since 3 in the ratio is for girls, there are 3*16=48 girls.

This is my first time answering :) your welcome

0.13 cents

So basically u need to do 3.25÷25.

Answer:

Step-by-step explanation:

Length of fence = Perimeter of triangle

                          = 10 + 20 + 15

Length of the fence = 45 m

Cost of fencing per meter = Rs. 25

Cost of fencing 45 m = 25 * 45

                                  = Rs. 1125

[tex]\huge{\fbox{\fbox{Given:}}}[/tex]

Lengths of the three sides of triangle are 10m,20m and 15m.

Perimeter of the ∆

[tex]\large{\fbox{\gray{Cost \: of \: fencing \: the \: field=}}}[/tex]

[tex]45 \times 25 = Rs1125[/tex]

Answer:

True.

Step-by-step explanation: If you substitute the solution into the original equation, it is the only number that will make the equation balanced or have an equal value on both sides of the equals sign.

Answer:

Step-by-step explanation:

R=r

Answer:

466895

Step-by-step explanation:

If you know the conversion, it's easy.

1 US dollar is about 1.37322 Australian.

so, you multiply 340,000 times 1.37322 and get about 466895 Australian dollars

Product of 2 and a number less than 1 is 2a - 1

Given:

Product of 2 and a number less than 1

Find:

Expression

Computation:

Assume;

Another number is "a"

So,

According to question:

2(a) - 1

Product of 2 and a number less than 1 = 2a - 1

Learn more about liner equation;

https://brainly.com/question/3726207?referrer=searchResults

Answer:

x - 3y

Step-by-step explanation:

Step 1: Write expression

[tex]\frac{3x-9y}{3}[/tex]

Step 2: Factor

[tex]\frac{3(x-3y)}{3}[/tex]

Step 3: Simplify

x - 3y

Answer:

Step-by-step explanation:

0.2 times 0.8 =0.16

2.4 times 0.7 = 1.68

3.9 times 0.4 = 1.56

0.9 times 0.1 = 0.09

0.2 times 1.5= 0.3

0.6 times 0.6= 0.36

pls mark brainliest

Answer:

29

Step-by-step explanation:

all you do is divide.

Answer:

bruh its      9

Step-by-step explanation:

Answer:

[tex] \fbox{ \huge{ \sf{ a = - 8}}}[/tex]

Step-by-step explanation:

[tex] \bigstar{ \sf{ \: 19 = - 3a - 5}}[/tex]

[tex] \tt{Step \: 1 \: }[/tex] : Swap the sides of the equation

[tex] \longmapsto{ \sf{ - 3a - 5 = 19}}[/tex]

[tex] \tt{Step \: 2 \: }[/tex] : Move 5 to right hand side and change it's sign

[tex] \longmapsto{ \sf{ - 3a = 19 + 5}}[/tex]

[tex] \tt{Step \: 3 \: }[/tex] : Add the numbers : 19 and 5

[tex] \longmapsto{ \sf{ - 3a = 24}}[/tex]

[tex] \tt{Step \: 4 \: }[/tex] : Divide both sides by -3

[tex] \longmapsto{ \sf{ \frac{ - 3a}{ - 3} = \frac{24}{ - 3}}} [/tex]

[tex] \tt{Step \: 4}[/tex] : Calculate

[tex] \longmapsto{ \sf{a = - 8}}[/tex]

[tex] \sf ∴ \: the \: value \: of \: a \: is \: - 8.[/tex]

[tex] \sf{Hope \: I \: helped !} [/tex]

[tex] \sf{Best \: regards !!}[/tex]

~[tex] \sf{TheAnimeGirl}[/tex]

Answer:

Step-by-step explanation:

Answer:

B. The graph has no y-intercepts

Step-by-step explanation:

We see that we have vertical and horizontal asymptotes.

We also see that the right side of the graph has an x-intercept of (2, 0).

Therefore, A and D are incorrect.

We use the vertical asymptote x = 0 to get our answer B, as we will never cross the y-axis as x approaches negative and positive infinity.

Answer:

I got the answer 5 over 2

Answer:

5/2

Step-by-step explanation: hope it helps :)

Answer:

Let the number of nickels be x

Let the number of pennies be y

Let the number of dimes be z

Now z=x+y

FIrst equation:

z+x+y=16

Subsittue for z:

x+y+x+y=16

y=8-x (subsitution)

Hope this helps :)

Step-by-step explanation:

Answer:

h =10

Step-by-step explanation:

3/7 = h/14 -2\7

3/7 = 1/14 h + -2/7

1/14 h + -2/7 = 3/7

1/14 h + -2/7 +2/7 = 3/7 + 2/7

1/14 h = 5/7

14 * ( 1/14h) = 14* (5/7)

h =10

Answer:

  13 meters

Step-by-step explanation:

Adjacent sides form half the perimeter, so the sum of the unknown side and the given side is 34/2 = 17 meters.

  4 meters + width = 17 meters

  width = 13 meters . . . . . subtract 4 meters

Answer:

n = m − a

Step-by-step explanation:

Given:

a = m - n

Where,

a = Actual cost an item

m = Original price

n = amount of coupon

Solve the formula for the amount of the coupon

a = m - n

Add n to both sides

a + n = m - n + n

a + n = m

Subtract a from both sides

a + n - a = m - a

n = m - a

Amount of coupon, n = Original price of an item, m - Actual cost of an item, a

Answer:

[tex]\huge\boxed{\text{(A)}\ 0.36}[/tex]

Step-by-step explanation:

This sequence will have a pattern. Our goal is to try and find this pattern.

Our first two numbers are -45 and 9. The first relationship between these numbers that pops into my mind is 5. [tex]9 \cdot 5 = 45[/tex]. However, we go from -45 to 9. This means we have to divide by -5. [tex]-45 \div -5 = 9[/tex]

Let's check this actually is what the sequence is. It would be true if [tex]9 \div -5 = -1.8[/tex].

[tex]9 \div -5 = -1.8[/tex]

So -5 is the divisor.

To find the next term in the sequence, we divide -1.8 by -5.

[tex]-1.8 \div -5 = 0.36[/tex]

Hope this helped!

Answer and Explanation:

Number of classes = 8

    Highest value =2300

  Lowest value = 1250

Class width= highest value – lowest value / number of classes

               = 2300 – 1250/8

                = 131.25 = 132

So, we can write class as 1250+132=1382

Class                                        frequency

1250-1382                                 2

1382-1514                                 3

1514-1646                                 6

1646-1778                                 2

1778-1910                                 3

1910-2042                                 2

2042-2174                                 1

2174-2306                                 1

Answer:

a=8

Step-by-step explanation:

Answer:

1.8.09

2.-6

Step-by-step explanation:

1. 11b=89

b=89/11

8.09

2. 13+k/3=11

k/3=11-13

k/3=-2

k=-2*3

=-6

Answer:

Number 2 is - 6

Step-by-step explanation:

2. 13 + k/3 = 11

We can start off my subtracting 13 in both sides.

-13 + 13 + k/3 = 11 - 13

k/3 = -2. now we have to multiply 3 in both sides

3 x k/3 = -2 x 3

k = -6

Hope this helps!!

The measure of arc EF = 146 degrees because its central angle = 146 degrees.

4+5

134_75

56.4+6

68/8.7_2+1