Clara bought 40 pencils for $0.35 each. Raina bought 70 pencils at the same price. How much more money did Raina spend?

The measure of the angle X for the trigonometric ratio of sine X equal to 0.7547 is 49° to the nearest degree.

The trigonometric ratios involves the relationship of an angle of a right-angled triangle to ratios of two side lengths. Basic trigonometric ratios includes; sine cosine and tangent.

For the sine of X equal to 0.7547, we can make x the subject by finding the sine inverse of 0.7547 as follows:

sin X = 0.7547

X = sin⁻¹(0.7547)

X = 48.9992

Therefore, the measure of the angle X for the trigonometric ratio of sine X equal to 0.7547 is 49° to the nearest degree.

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The numbers which multiplies each other to give 14 and adds to give -9 is -2 and -7

What are the factors of 14

14 = 1, 2, 7, 14

What two factors of 14 multiplies each other to give 14 and add each other to give -9

1 × 2 = 2

1 × 7 = 7

1 × 14 = 14 ; 1 + 14 = 15

2 × 7 = 14 ; 2 + 7 = 9

So,

-2 + - 7 = -9

Therefore, negative two plus negative seven multiplies to give 14 and adds to give -9

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There are 8 tenths in 4/5, There are five fifths in 1/10, there are 2 tenths in 1/5, there are 25 fifths in 5.

The digit that follows the decimal has the place value of tenth. It stands for the digit's 1/10 position.

The fifth of a number is obtained by multiplying five occurrences of the number n together: n5 = n n n n. A number's fourth power or its square by its cube can likewise be used to create fifth powers.

a) Given 4/5, multiply the numerator and denominator by 2 to obtain the tenths. We get =4/5 2/2 =8/10 =8(1/10). Similarly, in 1/5, calculate the tenths in 1/5.

c) 525/25 = 25 is the fifth in 5.

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Answer:

the height is 6ft

Step-by-step explanation:

2 x 3 = 6ft

We assume that with a linear relationship between two variables, for any fixed value of x, the observed residuals follows a normal distribution.

This assumption is based on the Central Limit Theorem, which states that when the sample size is large enough, the distribution of sample means will be approximately normal, regardless of the shape of the underlying population distribution.

In the case of a linear relationship between two variables, we can assume that the residuals (the difference between the observed y values and the predicted values based on the linear regression model) follow a normal distribution with mean 0 and constant variance. This assumption is important because it allows us to use statistical methods that rely on normality, such as hypothesis testing and confidence intervals.

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Answer:

Her regular weekly pay is $62 and her annual salary is $3100.

Step-by-step explanation:

Given that her hourly wage=$15.50 / hour

As she works 40 hours per week, so her weekly pay = 15.50 x 40 = $62/ week.

If she works 50 weeks each year, so her yearly pay = 62x50=$3100 /year.

Hence, her regular weekly pay is $62 and her annual salary is $3100.

Answer:

12 is a rational number because it can be expressed as the quotient of two integers: 12 ÷ 1.

12 belongs to the sets of natural numbers, integer numbers, rational numbers, and real numbers.

First, we can see that it is a whole number, so it is an integer number.

Also, all positive integers are natural numbers, so 12 is also a whole number.

Now, we also can rewrite 12 as:

12 = 12/1

So it is a quotient between two integer numbers, thus, 12 is also a rational number.

Finally, the trivial answer, 12 belongs to the set of the real numbers (the set that contains all the numbers).

Concluding:

12 belongs to the sets of whole numbers, integer numbers, rational numbers, and real numbers.

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Answer:

Step-by-step explanation:

substitution.

it will be easier to use this method since we are given what x is.

5(-3)+y=8

-15+y=8

y=23

x=-3

Answer:

a and bc

Step-by-step explanation:

Answer:

a and bc

Step-by-step explanation:

The number of cups of lemonade Beatrice made in total is 18 4/15. The correct option is C. 18 4/15

From the question, we are to determine the number of cups of lemonade Beatrice made in total

From the given information,

Beatrice made 7 2/3 cups of lemonade

Later, she made 10 3/5 more cups of lemonade

To find the total number of cups of lemonade she made, we will add the two quantities together

That is,

7 2/3 + 10 3/5

7 2/3 + 10 3/5 = (7 + 10) + 2/3 + 3/5

= (17) + (10 + 9)/15

= 17 + 19/15

= 17 + 1 + 4/15

= 18 + 4/15

= 18 4/15

Hence, the number of cups of lemonade Beatrice made in total is 18 4/15. The correct option is C. 18 4/15

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Answer:

34°

Step-by-step explanation:

A triangle measures 180°

An isosceles triangle has two angles and sides with equal measurements.

We know that one angle is 112°. Thus, we can use that to form an equation to solve for the unknown values:

112° + x + x = 180°

112° + 2x = 180°

2x = 68

x = 34°

The other two angles each measure 34°.

Check:

112 + 34 + 34 = 180

hope this helps and is right!! p.s. i really need brainliest :)

Answer:

34°

Step-by-step explanation:

Sum of interior angles of a triangle is 180°

Two of the interior angles of an Isosceles triangle are equal

Given one of the interior angles is 112° then the remaining two angle must be equal:

⇒ 112 + 2x = 180

⇒ 2x = 68

⇒ x = 34°

The equation of point where the curve intersects the y-axis is (0, 1), as the y-coordinate is always 1 when x is 0.

The equation of a curve in the form y = a×x represents an exponential function equation, "a" is the base of the exponential function, and it determines the rate of growth or decay.

When the curve intersects the y-axis,

The value of x is 0. Substituting x = 0 into the equation,

y = a×0

y = 1

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Answer:

A

Step-by-step explanation:

2b meaning two times the age then add three like the question says.

Therefore , the problem of equation comes out to be Four is the solution when transformed into an equation.

An equilibrium is a rule that shows two expressions are equal by using the equals sign.The connotations of the measures the overall and its cognates might differ slightly among languages. For example, whereas in English an equation is really any well-formed formula made up of two expressions connected by the equals sign, an equation in French is defined as comprising one or more variables.

When attempting to solve a variable equation, the first step is to identify the variables with values that lead to equality.

The equation's solutions are the values of the unknown variables that satisfy the equality as well as the unknown variables that the equation should be solved.

Here,

8N+2N-6=34

10N-6=34

10N=40

N=4

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Answer:

100

Step-by-step explanation:

So, the prime factors of 100 are written as 2 x 2 × 5 x 5 or 25*4

The function f(x) = x² - 7 is an example of a function that is neither even nor odd, as it does not exhibit either type of symmetry.

To determine whether a function is even, odd, or neither, we need to examine its algebraic form and look for a particular type of symmetry.

Let's apply this concept to the given function, f(x) = x² - 7. To determine whether f(x) is even or odd, we need to evaluate f(-x) and compare it to f(x).

f(-x) = (-x)² - 7 // substitute -x for x

= x² - 7 // simplify

Comparing f(-x) to f(x), we can see that they are not equal:

f(-x) = x² - 7

f(x) = x² - 7

Since f(-x) is not equal to f(x), the function is not even. To determine whether it is odd, we need to evaluate f(-x) + f(x) and see if the result is zero.

f(-x) + f(x) = (x² - 7) + (x² - 7) // substitute -x for x in the second term

= 2x² - 14

Since f(-x) + f(x) is not equal to zero for all values of x, the function is not odd either.

Therefore, we can conclude that the given function, f(x) = x² - 7, is neither even nor odd.

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In triangle ABC, angle B measures 75 degrees. This is determined by solving the equation representing the sum of the triangle's angles and substituting the value obtained for angle B.

In triangle ABC, let's assume the measure of angle A is x degrees. According to the given information, angle C is 25 degrees more than angle A, so angle C is (x + 25) degrees. Angle B is stated to be 30 degrees less than the sum of the other angles, which means angle B is (x + (x + 25) - 30) degrees, simplifying to (2x - 5) degrees.

Since the sum of the angles in a triangle is always 180 degrees, we can write the equation: x + (x + 25) + (2x - 5) = 180.

Solving this equation will give us the value of x, which represents the measure of angle A. Substituting this value back into the expression for angle B, we find that angle B is (2x - 5) degrees.

Step 3: By solving the equation x + (x + 25) + (2x - 5) = 180, we can find the value of x, which represents the measure of angle A. Once we have the value of x, we can substitute it back into the expression for angle B, (2x - 5), to find the measure of angle B.

Let's solve the equation: x + (x + 25) + (2x - 5) = 180.

Combining like terms, we get 4x + 20 = 180.

Subtracting 20 from both sides gives 4x = 160.

Dividing both sides by 4, we find x = 40.

Substituting x = 40 into the expression for angle B, we have angle B = (2x - 5) = (2 * 40 - 5) = 80 - 5 = 75 degrees.

Therefore, the measure of angle B is 75 degrees.

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Answer:

2=x

Step-by-step explanation:

tell me if im wronng

Answer:

x=2

Step-by-step explanation:

3x-(9)=-3

    +9    +9

3x=6

/3  /3

x=2

Answer:

453.6

Step-by-step explanation:

the rule is

R% x P x T

which in this question is:

r%= 9%

p= 630

t=8

so

630 x 8 x 9% = 453.6

that's the final answer and in order to make sure make

630+453.6=1083.6

Answer:

its the  1 one apperently

Step-by-step explanation:

Answer:

first one

Step-by-step explanation:

The exponential function, considering the base e, can be written as follows:

\(f(t) = 8000e^{0.02t}\)

The standard definition of an exponential function is given as follows:

\(A(t) = A(0)\left(1 + \frac{r}{n}\right)^{\frac{t}{n}}\).

The parameters are given as follows:

The function for this problem is given as follows:

\(f(t) = 5000(1.4)^{\frac{t}{20}}\)

Considering the base e, the rate of change is obtained as follows:

k = 0.4/20 = 0.02.

Hence the function is written as follows:

\(f(t) = 8000e^{0.02t}\)

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Answer:

C

Step-by-step explanation:

(c + 1)(c+1) = c² + c + c + 1 = c² + 2c + 1

B. 3y = 2x – 9

is not perpendicular to the given line.

The slopes of perpendicular lines are negative reciprocals

Given the line

y = -1.5x + 11

The slope is -1.5 or -3/2

Any line perpendicular to the one above must have its slope as 2/3

A. The slope is 2/3 . CORRECT

B. The slope is 2/3. CORRECT

C. The slope is 3/2. WRONG

D. The slope is 2/3. CORRECT

Step-by-step explanation:

4.5÷4= 1.125

so each time she goes around the rectangle she's covering 1.125 km and we seed the length is twice the breadth x+2x=1.125

so 1.125 / 3 to give x which is the breadth=0.375 x 2 is equal to 0.75 km or 750 m this is the length of the field

Step-by-step explanation:

The length of a rectangular field is twice it's breadth. A girl jogged around it 4 times and covered a distance of 4.5 km. What is the length of the field?

The distance cover in 4 laps is 4.5 km, So one lap is 4.5/4 = 1.125 km.

Let the breadth of the field be B so the length will be L or 2B.

The perimeter of the field is 2L+2B or 4B+2B = 6B = 1.125, so B = 1.125/6 = 0.1875 km and the length is 2*0.1875 = 0.375 km.

Check: perimeter = 2*0.375 + 2*0.1875 = 1.125 km and 4 laps covers 4*1.125 = 4.5 km. correct.

The field is 375 m long.

Answer:

put one number in front of the other

Intelligence Quotient (IQ) is a measurement of a person's intellectual ability. It is calculated by dividing mental age by chronological age and then multiplying by 100.

The meaning of the IQ scores for Fatma, Ayesha, and Warda.Fatma has an IQ score of 135: This implies that Fatma's mental age is higher than her chronological age. Fatma's score of 135 indicates that her mental age is 135 percent of her chronological age. An IQ score of 135 indicates that Fatma is very intelligent.Ayesha has an IQ score of 100: This implies that Ayesha's mental age is equal to her chronological age. A score of 100 implies that Ayesha has average intelligence for her age group.Warda has an IQ score of 80: This implies that Warda's mental age is lower than her chronological age. Warda's score of 80 indicates that her mental age is 80% of her chronological age. An IQ score of 80 indicates that Warda is below average intelligence for her age group.

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