i help plz i will make u a brainllest

Answer:

Step 3

Step-by-step explanation:

The solution is given in the image attached. The steps are:

Step 1:

[tex]2x-\frac{1}{4} -\frac{3}{5}x=\frac{55}{4}[/tex]

Step 2: simplifying the coefficients of x:

[tex]2x -\frac{3}{5}x-\frac{1}{4}=\frac{55}{4}\\\frac{10x-3}{5} -\frac{1}{4}=\frac{55}{4}\\\frac{7x}{5} -\frac{1}{4}=\frac{55}{4}[/tex]

Step 3: Adding 1/4 to both sides

[tex]\frac{7x}{5} -\frac{1}{4}+\frac{1}{4} =\frac{55}{4}+\frac{1}{4}\\ \frac{7x}{5}=\frac{55+1}{4}\\ \frac{7x}{5}=\frac{56}{4}\\[/tex]

Step 4: Multiplying both sides by 5/7

[tex]\frac{7x}{5}*\frac{5}{7} =\frac{56}{4}*\frac{5}{7} \\x=10[/tex]

The addition property of equality states that if a number is added to both sides of an equation, the equation is still valid (i.e the equation is still the same). From the steps above, The addition property of equality was applied in step 3

Answer:

c. step 3

Step-by-step explanation:

Answer:

All real numbers

Step-by-step explanation:

Linear functions have a domain and range of all real numbers because they reach from -∞ to ∞ on the x-axis and y-axis.

An example is given below. The domain and range of the function are all real numbers.

Answer:

£6.86

Step-by-step explanation:

10%=0.7

0.75*98=6.86

Answer:

£6.86

Step-by-step explanation:

98% × 7

0.98 × 7

= 6.86

98% of £7 is £6.86.

Answer:

192.154 ft²

Step-by-step explanation:

Area of a Hexagon Formula: A = 3√3/2(x)²

x is the side of the hexagon. We simply plug in 8.6 in for x:

A = 3√3/2(8.6)²

A = 3√3/2(73.96)

A = 221.88√3/2

A = 110.94√3

A = 192.154

Answer:

~192.2

Step-by-step explanation:

The area of a regular hexagon is calculated by:

A = [3*sqrt(3)/2]x side x side = 3*sqrt(3)/2 x 8.6^2 = ~192.2

Answer:

k = 4

Step-by-step explanation:

Step 1: Distribute

-14k + 21 = -35

Step 2: Subtract 21 on both sides

-14k = -56

Step 3: Divide both sides by -14

k = 4

Answer:

-14, -14, -56, 4.

Step-by-step explanation:

-7(2k-3)=-35

-14k + 21 = -35

-14k = -56

k = 4

So, your answers should be -14, -14, -56, 4.

Hope this helps!

Answer:

[tex] - 5 \sqrt{ - 2} [/tex]

Step-by-step explanation:

We can write sq root (- 18) as = sq root [3 x 3 x (-2)]

Similarly sq root ( - 8) = sq root [2 x 2 x (-2)]

2 sq root [2 x 2 x (-2)] - 3 sq root [3 x 3 x(-2)]

We simply,

2 x2 sq root (-2) - 3 x 3 sq root (-3)

4 sq root (-2) - 9 sq root (-2)

Bcoz sq root (-2) is common in bot term so

So

Sq root (-2) (4-9)

-5 sq root (-2) answer

Answer:

m<GEC = 17.9 deg

Step-by-step explanation:

First, use the Pythagorean theorem to find the length of GE.

(GE)^2 = (E?)^2 + (?G)^2

I am using ? in place of the front right corner point name that is not visible.

(GE)^2 = 12^2 + 3^2

GE = 12.3693

In triangle EGC, for angle GEC, GE is the adjacent leg, and GC is the opposite leg. We use the tangent.

tan GEC = opp/adj

tan GEC = GC/GE

tan GEC = 4/12.3693

tan GEC = 0.32338

Use inverse tangent to find the angle.

m<GEC = 17.9 deg

The angle ∠GEC of a cuboid will be:

"17.9°"

According to the question,

Three dimensions,

AC = 4 cm

EH = 12 cm

GH = 3 cm

By using Pythagoras theorem,

→ (GE)² = (EH)² + (GH)²

By substituting the values,

           = (12)² + (3)²

           = 144 + 9

           = 153

     GE = √153

           = 12.3693

Now, In ΔEGC

here, Adjacent leg = GE

        Opposite leg = GC

→ tan GEC = [tex]\frac{Opposite}{Adjacent}[/tex]

                 = [tex]\frac{GC}{GE}[/tex]

                 = [tex]\frac{4}{12.3693}[/tex]

                 = 0.32338  

Hence, by using inversing tangent

m∠GEC = 17.9°

Thus the above answer is correct.

Find out more information about Pythagoras theorem here:

https://brainly.com/question/24417148

Answer:

11/60 so around 18.33%

Step-by-step explanation:

hello

in total there are 120 ppl

22 are vanilla cones

so the probability that this person bought a vanilla a ice cream cone is 22/120=11/60

hope this helps

Answer:

a) From 10 to 11, Sarah rode 12 km in one hour. That means her velocity was 12 km/hr.

b) Sarah passed by her home at 12:45.

c) From 12 to 13, Sarah rode 15 km. Thus, her velocity was 15 km/hr. From 13 to 14 she rode 3 km. Thus, her velocity was 3 km/hr.

d) Her average velocity was 12+0+15+3/4, or 30/4 which is 7.5 km/hr.

Answer:

Step-by-step explanation:

nth term = (n-1)th term + common difference

d = -10

a₁ = 3

a₂ = a₁ + d = 3 + (-10) = -7

a₃ = a₂ + d = -7 + (-10) = -17

a₄ = a₃ + d = -17 + (-10) = -27

a₅ =a₄ + d = -27 + (-10) = -37

a₆ = a₅ + d = -37 + (-10) = -47

First six terms: 3 , -7 , -17, -27, -37 , -47

Answer:

below

Step-by-step explanation:

Answer:

1) -.91

2) .53

3) .04

Step-by-step explanation:

[tex]sin(24)[/tex] = -.905578362

-.91 rounded to the nearest hundredth

[tex]cos(45)[/tex] = .5253219888

.53 rounded to the nearest hundredth

[tex]tan(88)[/tex]= .0354205013

.04 rounded to the nearest hundredth

Answer:

3x - 21 = 3(x + 7).

Step-by-step explanation:

3x - 21 = 3(x + 7)

3x - 21 = 3x + 21

3x - 3x = 21 + 21

0 = 42

Since the two are not equal, this equation has no solution.

3x - 21 = 3(x - 7)

3x - 21 = 3x - 21

3x - 3x = -21 + 21

0 = 0

Since the two are equal, this equation has infinitely many solutions.

3x - 21 = x - 7

2x = 14

x = 7

This equation has one solution.

Since there is only one choice that makes sense, the answer won't be all of the choices.

The answer is A. 3x - 21 = 3(x + 7).

Hope this helps!

Answer:

x=-9

x+2=-7

Step-by-step explanation:

Let

x and (x+2)= the two consecutive integers

x=smaller odd integer

x+2=larger odd integer

1/3 of the smaller integer plus the larger integer =7 more than the sum of the two numbers

1/3x+(x+2)= (x)+(x+2)+(7)

x/3+x+2=x+x+2+7

x+3/3=2x+9

3/3x=2x+9

x=2x+9

x-2x=9

-x=9

x= -9

The smaller odd integer=x= -9

The larger odd integer=(x+2)=-9+2

= -7

Answer:

8.2

Step-by-step explanation:

Area of triangle is calculated by multiplying height to the base and that divided by two

20 × h ÷ 2 = 56^2

h = 5.6

The square length of CD is equal to sum of square length of height and base

6^2 + 5.6^2 = CD^2

CD = 8.2

Answer:

Triangle ABC and triangle MNO are congruent. A Rotation is a single rigid transformation that maps the two congruent triangles.

Step-by-step explanation:

ΔABC has vertices at A(12, 8), B(4,8), and C(4, 14).

ΔMNO has vertices at M(4, 16), N(4,8), and O(-2,8).

Therefore:

and ΔABC ≅ ΔMNO by SSS postulate.

In the picture attached, both triangles are shown. It can be seen that counterclockwise rotation of ΔABC around vertex B would map ΔABC into the ΔMNO.

Answer:

slope = -2

y-intercept = 2

equation: y = -2x + 2

Step-by-step explanation:

The equation of a line is

y = mx + b

We need to find the slope, m, and the y-intercept, b.

The graph crosses the y-axis at y = 2, so the y-intercept, b, equals 2.

Now we have

y = mx + 2

slope = m = rise/run

We see points (1, 0) and (0, 2) on the graph. Starting at (1, 0), we go up 2 units. That is a rise of 2. Then we go 1 unit left. That is a run of -1.

slope = m = rise/run = 2/(-1) = -2

The slope is -2.

The equation is

y = -2x + 2

Answer:

y=-2x+2

Step-by-step explanation:

Using rise over run the line travels down 2 and right one from one point to another giving u -2/1 or -2 as the slope and it passes through the y-axis at 2 giving you a y-intercept of 2 and the equation y=-2x+2.

Answer: 96

Step-by-step explanation:

A palindrome is a number that is the same when reading in both ways (right to left, and left to right), for example, 121

Then, we have 9 digits, and all the digits need to be even.

the options are: 0, 2, 4, 6, 8.

Now, we can tink a 9 digit number as 9 empty slots, and in each slot, we can put a number.

But because this is a palindrome, the first digit must be equal to the ninth, and the second digit must be equal to the eight, and so on.

So we can tink it as actually only 5 slots, where in each slot, we can put an even number, now let's count the options that we have in each selection.

For the first digit we have 4 options: 2, 4, 6 and 8 (0 is not counted here because if the first digit was a 0, then this would not be a 9 digit number).

for the second digit, we have also 4 options (because we already toked one, but now the 0 can be chosen)

for the third digit, we have 3 options

for the fourth digit, we have 2 options

for the fifth digit, we have only one option.

The total number of combinations is equal to the product of the number of options for each selection:

C = 4*4*3*2*1 = 96

Answer:

96

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

On the horizontal number line, -2.5 is located to the left of zero and 2.5 is located to the right of zero.

On the number line, the numbers left side of zero are all negative numbers, and the numbers right side of zero are all positive numbers.

Answer:

Justine needs to score a 100 to have an average of 93%.

Step-by-step explanation:

Given:

Justin scores 85, 92 and 95 on his science tests.

To find:

The score that he needs to earn to have an average of 93%?

Solution:

Let the score in next science test = [tex]x[/tex]

Formula for Average/Arithmetic Mean is given as:

[tex]Average = \dfrac{\text{Sum of all observations}}{\text{Total number of observations}}[/tex]

Here we have 4 number of total observations and average is 93%.

Now, put all the values here:

[tex]93 = \dfrac{85 +92+ 95+x}{4}\\\Rightarrow 93\times 4=85 +92+ 95+x\\\Rightarrow 372=272+x\\\Rightarrow x = 372-272\\\Rightarrow x = 100[/tex]

So, Justin needs to score 100 to have an average of 93%.

Answer:

Each side length of the square is [tex]8cm^{2}[/tex]

Step-by-step explanation:

We know that a square has 4 Equal sides.

To find the area of a triangle, you will have to use the formula [tex]A=\frac{1}{2} (bh )[/tex]

Then, you will substitute with 4 and 16.

[tex]A=\frac{1}{2} (4x16)[/tex] (x=times)

Then, simplify.

[tex]A=\frac{1}{2} (64)[/tex]

Then, simplify again :)

[tex]A=32cm^{2}[/tex]

Now, we know that the area of a triangle is [tex]32cm^{2}[/tex]. It tells us that the area of a square is double that.

So, we divide [tex]32[/tex] by [tex]4[/tex], since a square has 4 sides.

[tex]\frac{32}{4} = 8cm^{2}[/tex]

Hence, one side length of a square is [tex]8cm^{2}[/tex].

Hope that helps:D

-Jazz

Answer:

8cm

Step-by-step explanation:

First find the area of the the triangle:

4*16=64 64/2=32

The square is twice the area of the triangle:

32*2=64

A square has two lengths that are the same so that means two same numbers multiplied by each other would be 64

That number would be 8

Answer:

1/5

Step-by-step explanation:

Since we have given that

Quantity of orange juice = 30 ml

Quantity of apple juice = 20 ml

Quantity of coconut juice = 50 ml

Total quantity of cocktail = 100 ml

So, the ratio of orange juice to apple juice to coconut juice is given by

=30:20:50

= 3:2:5

Total ratio=3+2+5

=10

So, proportion of the cocktail of apple juice is given by

2/10×100

=1/5×100

=20%

Hence, the proportion of the cocktail is 1/5 apple juice

Answer:

x = -1 ± 2i

Step-by-step explanation:

Quadratic Formula: [tex]x = \frac{-b+/-\sqrt{b^2-4ac} }{2a}[/tex]

√-1 = i

Step 1: Factor GCF

3(x² + 2x + 5)

Step 2: Use quadratic formula

a = 1

b = 2

c = 5

[tex]x = \frac{-2+/-\sqrt{2^2-4(1)(5)} }{2(1)}[/tex]

[tex]x = \frac{-2+/-\sqrt{4-20} }{2}[/tex]

[tex]x = \frac{-2+/-\sqrt{-16} }{2}[/tex]

[tex]x = \frac{-2+/-i\sqrt{16} }{2}[/tex]

[tex]x = \frac{-2+/-4i }{2}[/tex]

[tex]x = \frac{-2(-1+/-2i) }{2}[/tex]

x = -1 ± 2i

The probability of two non-overlapping events A or B happening is:

p(A or B) = p(A) + p(B)

if you add an image of the question you are trying to answer, I can explain it better.

Answer:

If events A and B are non-overlapping events.

P(A or B) = P(A) + P(B)

To find the probability that one or the other occurs, you add the probability of both events occurring together.

Step-by-step explanation:

To multiply rational expressions, simply multiply the numerators together (the tops) and the denominators together (the bottoms).

For example:

[tex]\frac{x+a}{y+b}\times\frac{x+c}{y+d}[/tex]

[tex]= \frac{(x+a)(x+c)}{(y+b)(y+d)}[/tex]

[tex]=\frac{x^{2}+ax+cx+ac}{y^{2}+by+dy+bd}[/tex]

To divide by a rational expression, multiply by its reciprocal.  In other words, flip the fraction, then multiply.

For example:

[tex]\frac{x+a}{y+b}\div\frac{x+c}{y+d}[/tex]

[tex]=\frac{x+a}{y+b}\times\frac{y+d}{x+c}[/tex]

[tex]=\frac{(x+a)(y+d)}{(x+c)(y+b)}[/tex]

[tex]=\frac{xy+dx+ay+ad}{xy+bx+cy+bc}[/tex]

Answer:

C

Step-by-step explanation:

Given

x³ + 3x² + 3x + 9 ( factor first/second and third/fourth terms )

= x²(x + 3) + 3(x + 3) ← factor out (x + 3) from each term

= (x² + 3)(x + 3) → C

Answer: 0.35

Step-by-step explanation:

First there is a 50% chance, or a 0.5 chance that Stu gets a sandwich.  Then, ignoring the other .5, there is a .7 chance that he makes the bus.  Thus, 1/2 of .7 is 0.35.

Hope it helps <3

Answer:

Step-by-step explanation:

This is a binomial distribution because there are only two possible outcomes. It is either a randomly selected student is a male or a female. In this scenario, the probability of success, p is that a randomly selected student is a male and it is the same for any given number of trials. Therefore,

p = 40/100 = 0.4

The probability of failure, q would be that a randomly selected student is a female.

q = 1 - p = 1 - 0.4 = 0.6

Number of trials, n = 9

Therefore,

Mean = np = 9 × 0.4 = 3.6

Standard deviation = √npq = √9 × 0.4 × 0.6 = 1.47

The shape of the distribution is asymmetric.

Answer:

A

Step-by-step explanation:

Im not 100% but im sure I did this question

The diagram which correctly represents the statement "If it is a square, then it is a rectangle" is; Figure A.

From set theory;

The statement " if it is A, then it is B" simply can be translated mathematically as A is a subset of B.

In this case, Since the statement is; "If it is a square, then it is a rectangle".

The figure A correctly represents the statement; "If it is a square, then it is a rectangle".

Read more;

https://brainly.com/question/6075184

Answer:

12

Step-by-step explanation:

4 types of flowers, 3 messages, therefore 3x4=12

Sunflower:           Daisy:                   Tulip:                   Roses:

Birthday               Birthday               Birthday              Birthday

Holiday                Holiday                Holiday                Holiday

Anniversary         Anniversary         Anniversary        Anniversary

COUNT ALL OF THE HOLIDAYS AND THAT NUMBER IS GONNA BE YOUR ANSWER.

Answer:

6≤x>2

Step-by-step explanation:

2x+3(4-x)≤x<2(x+1)    simplify

2x+12-3x≤x<2x+2

first step:

-x+12≤x  

-x+12+x≤x+x

12≤2x , then 12/2 ≤ x

6≤x or x ≥ 6

second step: x<2x+2

x-2x<2x-2x+2

-x<2 when divide by negative the sign flip in this case from less to great than

x>2

6≤x>2