3. Copy these equations and add brackets so that the answers are correct. 42-8x3-22=80 b) 75+5x4-70=25 160÷4x3 + 2 = 200 d) 120÷2x3+5=25
​

Answer:

8232 South African Rand

Step-by-step explanation:

The question cuts off at "if the current exchange" so the exchange rate is not specified. At the time of writing this answer, the echnage rate from one sterling pound to South African Rand is 1=20.58. So, we just need to multiply 20.58*400 to get 8232.

150°

The correct answer is 150°

Answer:

15

Step-by-step explanation:

1+3+5+4+2

Answer:

None of the above

Step-by-step explanation:

Beacuse,

3*65 +9*55 = 690miles

4*65 + 8*55 = 700 miles

6*65 + 6*55 = 720 miles

8*65 + 4*55 = 740 miles

The total length is 750miles which is not suitable in this above four answers

The final answer is N * 58 + 64.

What is the PEMDAS?

The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication, Division (from left to right), Addition, and Subtraction (from left to right).

The order of operations (PEMDAS) tells us to perform the following steps:

Parentheses: (4 x 12 - 40) to the power of 2 = (-8)^2 = 64

Exponents: N * 58 + 64

Multiplication and Division: from left to right

Addition and Subtraction: from left to right

Hence, the final answer is N * 58 + 64, since we do not know the value of N we can't solve it.

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Correct answers:

1. -5(х+3)

1. -5(х+3)2. 5(-х-3)

Answer:

option 4th is answer ...............

-5x-15 =-5(x-3)

Answer:

Ms. Nahar is 7 years old.

Step-by-step explanation:

21/7 =3

Answer:

She is 7 years old if he is 21

Step-by-step explanation:

21/3

Answer:

B

Step-by-step explanation:

The numbers are the same so they would be on the same place on the number line.

Answer:

If A = B, where on the number line will A appear?

The correct answer is B. In exactly the same location as B.

This is because when we say A = B, it means that A and B have the same value, meaning they are located in the same place on a number line.

Answer:

this is very big question and the answer I think so is 11474

The floor that Ramon lives on, given the address that Ramon gave his friend in Johannesburg, is Floor 18.

Ramon's Flat number, given the address, is Flat 34.

In South Africa, there is a way to write the floor that a person stays on and the flat number, in the address that they give to you. The format is such that the first two numbers would represent the floor number. This means that an address of 0208 would means that the floor number is the 2nd floor.

The second two numbers would then be the flat number of the person which means that an address of 0208 would have a flat number of 08.

Ramon's address of 1834 Norman Heights Hillbrow Johannesburg would then be Floor 18 and Flat 34.

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Answer:

You can find the value of the tangent of any angle on a unit circle. Just draw a vertical line from the x-axis at either zero or pi until it intersects what is the extension of the radius through the angle. The length of that vertical line is the value of the tangent at the angle in question.

Step-by-step explanation:

In any right triangle, the tangent of an angle is the length of the opposite side (O) divided by the length of the adjacent side (A).

Helpful Tip!:)

Answer:

E

Step-by-step explanation:

Let x be the initial value

  after 1 year    value = 1.1 x

          after 2 yrs   v = 1.1 * 1.1 x

                after 3 yrs   v = 1.1 * 1.1 * 1.1 x

                     after 4 yrs    v = 1.1 * 1.1 * 1.1 * 1.1 x

or simply :    value = ( 1.1)^n x     where n = number of years

                       for n= 4 years    value = (1.1)^4 x = 1.4641 x

           this represents a .4641 increase or  46.41 % increase  Answer E

Answer:3 square root 27c7 • 3 square root 250c2 can be simplified by applying the property of square roots, (√a * √b) = √(ab) .

So, 3 square root 27c7 • 3 square root 250c2 = √(27c7 * 250c2) = √(27250c7c2) = √(675c7*c2) = √(675c9) = √(675) * √(c9) = 15c3

Therefore, 3 square root 27c7 • 3 square root 250c2 = 15c3 is the equivalent expression.

Step-by-step explanation:

So on solving the provided question we can say that here in both triangles are similar, y = 10; x = 12

A triangle is a polygon since it has three sides and three vertices. It is one of the basic geometric shapes. The name given to a triangle containing the vertices A, B, and C is Triangle ABC. A unique plane and triangle in Euclidean geometry are discovered when the three points are not collinear. Three sides and three corners define a triangle as a polygon. The triangle's corners are defined as the locations where the three sides converge. 180 degrees is the result of multiplying three triangle angles.

here in both triangles are similar,

y = 10

x = 12

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the photo is not loading ok this is your photo open this and see now that address now because you are so

Answer:

g(x) is translated 2 units up from f(x).

Step-by-step explanation:

f(x) = 4x

g(x) = 4x+2

g(x) = f(x) + d  where d is an upwards translation from f(x)

Adding 2 is a vertical translation up 2 units

Answer: [tex]x=9[/tex]

Step-by-step explanation:

[tex]3^{x-2}=3^7\\\\x-2=7\\\\x=9[/tex]

Answer: a. The value of n is 10, as there are 10 tosses of seven coins.

b. The value of Y2 is 6, as the number of heads in the second toss is 6.

c. The value of Y7 is 3, as the number of heads in the seventh toss is 3.

d. For i = 1, 2, 3, 4, the value of Y is 2. For i = 5, 8, the value of Y is 3. For i = 6, 9, 10, the value of Y is 4.

e. Yi-1 refers to the observation made in the previous toss (i-1), whereas Yi – 1 refers to the observation made in the current toss (i) minus 1.

f. Yi-1 = Y1 = 2 and Yi – 1 = Y2 – 1 = 6 – 1 = 5 for i = 2

g. The observations can be written as a vector Y = (2, 6, 2, 2, 5, 3, 5, 3, 3, 4)

Step-by-step explanation:

Using substitution method to solve the system of linear equations, the value of x and y are 4 and -24 respectively.

A system of linear equations is a set of two or more linear equations that contain two or more variables. The goal of solving a system of linear equations is to find the values of the variables that satisfy all of the equations in the system simultaneously. Linear equations are equations that can be written in the form of ax + by = c, where a, b, c, x and y are constants.

In this problem, the equations are

Using substitution method;

Put the value y in eq(i) into eq(ii)

-2x - (-6x) = 16

-2x + 6x = 16

4x = 16

x = 4

Put x = 4 into equ(i)

y = -6(4)

y = -24

The value of x and y are 4 and -24

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Answer: Each roll of fabric had 86.4 inches of fabric.

Step-by-step explanation:

Each roll of fabric used in the annual school play had a length of 14.4yd / 6 rolls = 2.4 yards of fabric.

1 yard = 36 inches

so, 2.4 yards = 2.4 x 36 inches = 86.4 inches

Each roll of fabric had 86.4 inches of fabric.

Explanation: The problem states that Chau used 6 rolls of blue fabric, and the total length of fabric used was 14.4 yards. Dividing the total length of fabric by the number of rolls gives the length of each roll, which is 2.4 yards or 86.4 inches.

Answer: 0.515

Step-by-step explanation:

Since our angle is between 0 and 90 degrees, it is located in Quadrant I

In the first quadrant, the values for sin, cos and tan are positive.

Since 31° is less than 90, we can express this in terms of a cofunction

sin(θ) = cos(90 - θ)

sin(31) = cos(90 - 31)

sin(31) = cos(59)

hope this helps!

The value of sin 31° is 0.51504.

Sin 31 degrees is the value of the sine trigonometric function for an angle equal to 31 degrees.

The sin of 31 degrees is 0.51504, but the sin of 31 degrees can also be expressed in radians. To obtain 31 degrees in radian multiply 31° by π/ 180° = 31/180π. Sin 31degrees = sin (31/180 ×π)

The results of sin31° are rounded to five decimal places.

The following are identities of sine 31° :

sin31°

= cos (90°-31°) = cos 59°

= sin (180°-31°) = sin 149°

-sin31°

= cos (90°+31°) = cos 121°

= sin (180°+31°) = sin 211°

Therefore, The value of sin 31° is 0.51504.

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Answer:

Third choice on the screenshot:
Yes, because the determinant of the coefficient matrix is 8

Step-by-step explanation:

If the determinant of a coefficient matrix is zero, then the linear system of equations it represents has no solution.

Here the coefficient matrix is

[tex]\begin{pmatrix}2&4\\ \:-1&2\end{pmatrix}[/tex]

The determinant of a matrix
[tex]\begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}[/tex]

is [tex]\:ad-bc[/tex]

So
[tex]\det \begin{pmatrix}2&4\\ -1&2\end{pmatrix} = 2\cdot \:2-4\left(-1\right) = 8[/tex]

Since it is non-zero, the system of equations will have a unique solution

Answer:

The change in gravitational potential energy from point A to point B can be calculated using the formula:

ΔU = mgh

Where:

m = mass of the pendulum = 1.5 kg

g = acceleration due to gravity = 9.8 m/s^2

h = change in height = yB - yA = 0.12 m - 0.04 m = 0.08 m

So, the change in gravitational potential energy from A to B is:

ΔU = (1.5 kg)(9.8 m/s^2)(0.08 m) = 1.176 J

So, the change in gravitational potential energy from A to B is 1.176 Joules.

I hope this helped you

Answer:

a = 3

Step-by-step explanation:

24 x 2ªx 3

8= 2ª

a= 3

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

[tex]\mathsf{24 = 2a \times 3}\\\mathsf{\rightarrow 2a \times 3 = 24}\\\mathsf{\rightarrow 2(3)(a) = 24}\\\mathsf{\rightarrow 6(a) = 24}\\\mathsf{\rightarrow 6a = 24}\\\\\text{DIVIDE 6 to BOTH SIDES}\\\\\mathsf{\rightarrow\dfrac{6a}{6} = \dfrac{24}{6}}\\\\\text{SIMPLIFY it}\\\\\mathsf{\rightarrow a = \dfrac{24}{6}}\\\\\mathsf{\rightarrow a = 4}\\\\\\\huge\text{Therefore, your answer should be:}\\\huge\boxed{\mathsf{a = 4}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

Answer: I believe the answer is A; 0.72

Answer: The largest marginal relative frequency is 0.90 and it represents the probability of an individual having brown hair given that they have brown eyes.

Step-by-step explanation:

The reason why 0.90 represents the probability of an individual having brown hair given that they have brown eyes is because the study shows that 90% of the people who have brown eyes also have brown hair. This is a conditional probability, which means that it is the probability of one event happening given that another event has already happened. In this case, the event of having brown hair is conditional on the event of having brown eyes. The probability of 0.90 is calculated by taking the total number of individuals with brown eyes and brown hair and dividing it by the total number of individuals with brown eyes. The number is large because 90% of the individuals with brown eyes have brown hair, it is the largest because it is the highest probability among the other marginal relative frequencies. This indicates that the majority of people with brown eyes also have brown hair

The domain and range are (0 , ∞) and (0 , ∞).

What is domain ?

The collection of all potential inputs for a function is its domain. For instance, the domain of f(x)=x2 and g(x)=1/x are all real integers with the exception of x=0.

The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.

The set of all initial elements in ordered pairs constitutes the domain (x-coordinates). The set of all second items in ordered pairs is the range (y-coordinates).

Given

y = 80 / x

As per the graph the domain and range are

domain : (0 , ∞)

{depth of the diamond > 0 }

range : (0 , ∞)

{ratio > 0}

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Answer:

Step-by-step explanation:

set up the composite function and simplify: first one is -3, second is -2

Answer:

Step-by-step explanation:

Assuming that the same ratio of invitees to respondents holds true for the 30 additional HRDs, the best estimate of the number of people employed by the 30 organisations is 67.5 (30/45*100). This means that the total number of people employed by the 363 organisations represented by the 333 invited HRDs and the 30 additional HRDs is 5,475 (5,407.5 + 67.5).

Answer:

Step-by-step explanation:

jake has 2 apples

if bob gotta two apples and Jake took it away then how many apples does bob have

Step-by-step explanation: