9c-10(4c-2) I need help asap

The given expression can be simplified to obtain as 5a² + 4a + 5.

An algebraic expression can be obtained by doing mathematical operations on the variable and constant terms.

The variable part of an algebraic expression can never be added or subtracted from the constant part.

The given expression is (8a²+ 6a+ 5) + (-3a² - 2a).

It can be simplified as,

(8a²+ 6a+ 5) + (-3a² - 2a)

Arrange the like terms as,

⇒ 8a² - 3a² + 6a - 2a + 5

⇒ 5a² + 4a + 5

Hence, the simplification is obtained as 5a² + 4a + 5.

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The solution to the quadratic equation is x=5 and x = -5. Hence option C is the correct option.

What is a quadratic equation?

A quadratic equation is any equation in algebra that can be rearranged in a standard form where x represents an unknown value and a, b, and c represent known numbers, with a ≠ 0.

Given equation is

16x²-400=0

To solve the quadratic equation, equate the left side expression with y and graph it. The x-intercepts are the solution of the equation.

The equation becomes y = 16x²-400

Draw the graph.

The x-intercepts are x=5 and x = -5.

Divide the given equation by 16:

x²-25=0

To solve the quadratic equation, equate the left side expression with y and graph it. The x-intercepts are the solution of the equation.

The equation becomes y = x²-25

Draw the graph.

The x-intercepts are x=5 and x = -5.

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The movement of the object in centimeter per day is solved to be

The given problem is solved by conversion of units

feet to centimeters

1 feet = 30.48 cm

5 feet = ?

cross multiplying

? = 5 * 30.48

? = 152.4 cm

week to days

7 days = 1 week

? = 6 weeks

cross multiplying

? = 6 * 7

? = 42 days

speed in centimeters per day

= 152.4 cm / 42 days

= 3.63 cm per day

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Answer:2304 is the answer

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

Answer:

x = 0.295

Step-by-step explanation:

1/5/2023

7:24PM

Answer: yes

Step-by-step explanation:

The value of x from the system of equation will be 1 and 8 and the proportion equivalent is x² - 9x + 8 =0.

Polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and positive-integer powers of variables

Given the expression 1/2+1/2x=x² - 7x+10/4x

Multiply the first term by 2x/2x  and second term by 2/2 to have:

2x/4x + 2/4x = (x² - 7x+10)/4x

Multiply through by 4x to have:

2x+2=x² - 7x+10

Collect the like terms and factorize

x² - 7x+10-2x-2=0

x²-9x+8=0

Now factorize the given equation

x²-8x-x+8=0

x(x-8)-1(x-8)

(x-1)(x-8)=0

x=1 and x=8

Hence, the value of x from the system of equation will be 1 and 8 and the proportion equivalent is x² - 9x + 8 =0.

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Answer:

122387478565275582528

Answer:

x ≤ 1

Step-by-step explanation:

In the graph shown, the blue arrow is facing to the left, so we know that the inequality is some kind of less-than inequality (x < number).

We can also see that the blue arrow starts at a filled-in circle, so we know that the inequality will use the less-than-or-equal-to relator (≤).

Finally, the filled-in dot is at 1, so we can construct the equation:

x ≤ 1

Note that you could replace x with any other variable or even a blank space, since it isn't specified by the number line.

Answer:

C) f(x) = 2x - 3

Step-by-step explanation:

When you multiply the x value by 2 and divide it by three, you get the number that is in the right column.

Answer:

-2

-1

0

1

only this digit could satisfy your given function

Answer: 3.5

Step-by-step explanation: The 5 is in the tenth place.

The range of the function is {-30, -14, 0, 12, 22}

From the question, we have the following parameters that can be used in our computation:

f(x) = 13x - x²

Then, we have the domain to be

{-2, -1, 0, 1, 2}

Substitute  {-2, -1, 0, 1, 2} for x in f(x) = 13x - x²

So, we have

f(-2) = 13(-2) - (-2)² = -30

f(-1) = 13(-1) - (-1)² = -14

f(0) = 13(0) - (0)² = 0

f(1) = 13(1) - (1)² = 12

f(2) = 13(2) - (2)² = 22

Hence, the range is {-30, -14, 0, 12, 22}

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The astronaut is located at a distance of 2297.83 km from the Space Center

From the question, we have the following parameters that can be used in our computation:

Average height (h) = 400 km above the earth

Diameter (d) of the earth = 12,800 km

Because the astronaut on board the International Space Station sights along a tangent line to Earth,

The distance (x) between the astronaut and the Space Center can be calculated using the following secant theorem

x² = h * (h + d)

Substitute the known values in the above equation, so, we have the following representation

x² = 400 * (400 + 12800)

Evaluate the products

x² = 5280000

Take the square root of both sides

x = 2297.83

Hence, the distance is 2297.83 km

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The solution of the differential equation  (dP)/(dt) = sqrt(P(t)) with initial condition P(1) = 2 is P(t) = 0.74 exp(t)

To find the solution of a differential equation, take the integral of both sides, then apply the initial condition.

In the given problem:

dP/dt = sqrt (P(t))

dP/P(t) = dt

Take integral of both sides.

Recall that:

∫ 1/x dx = ln x + C

∫ dt = t + C

Hence,

1/P dP = dt

∫ 1/P dP = ∫ dt

ln P = t + C , with C = constant

P(t) = C . exp(t)  

Apply the initial condition:

P(1) = 2

C . exp(1) = 2

C = 2/exp(1) = 0.74

Hence, the solution is:

P(t) = 0.74 exp(t)

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The reasoning for the the ratios of AZ to ZB is 1, of AY to CY is 1, and of BX to CX is 1 is because of option C. Medians divide each side of the triangle in half.

Median is the line segment joining from a vertex of a triangle to the mid point of the opposite side to that vertex.

There are three medians for a triangle.

Median is a line segment from the vertex to the exact mid point of the opposite side.

So each median from a vertex make the opposite side into two equal parts. So each side has been divided into half and thus the ratio of the length of a side in terms of the mid point is same.

Hence the reasoning for the second step is due to that medians divide each side of the triangle in half.

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Answer: 48$

Step-by-step explanation:

20% of 40$ is 8$ so its 48$

Answer:

what the other guy said, 48$

Step-by-step explanation:

Answer:

A) 90 muffins were baked Monday

B) 24 blue berry muffins were made Tuesday.

Step-by-step explanation:

A

40% for what number is 36

.4x = 36  Divide both sides by .4

x = 90

B

40% of 60 is what number?

.4 x 60 = 24

The domain of the function is all values of x such that x ≥ 2.

A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.

Domain is the set of inputs which are the values of x.

The given expression is,

(x+3)^2/25 - (y-1)^2/4 = 1

(x+3)^2/25 - 1 = (y-1)^2/4

[tex](\frac{x+3}{5})^2 - 1=(\frac{y-1}{2})^2[/tex]

[tex]\sqrt{ (\frac{x+3}{5})^2 -1 }=\frac{y-1}{2}[/tex]

[tex]2\sqrt{ (\frac{x+3}{5})^2 -1 }+1=y[/tex]

The value of y is defined only when the value inside the root is non negative.

So [tex](\frac{x+3}{5})^2[/tex] ≥ 1

[tex]\frac{x+3}{5}[/tex] ≥ 1

x + 3 ≥ 5

x ≥ 2

Hence for all x ≥ 2, the function is defined.

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The coordinates of the orthocenter is (1,4)

The orthocenter of a triangle is the intersection of the perpendicular bisectors of the sides of the triangle. To determine if the orthocenter is inside, on, or outside the triangle, we first need to find the coordinates of the orthocenter.

We can find the equation of the perpendicular bisector of a line segment with the coordinates of its endpoints using the midpoint formula and the slope-intercept form of a line. The midpoint of a line segment with endpoints (x1, y1) and (x2, y2) is ((x1+x2)/2, (y1+y2)/2). The slope of the line perpendicular to a line with slope m is -1/m.

For example, the equation of the perpendicular bisector of side LM of the triangle is:

Midpoint of side LM: ((-3+5)/2, (2+2)/2) = (1,2)

Slope of side LM: (2-2)/(5-(-3)) = 0. Therefore the slope of the line perpendicular to it is undefined.

Equation of the perpendicular bisector: x = 1

Similarly, we can find the equations of the perpendicular bisectors of the other sides. The intersection of these lines gives us the coordinates of the orthocenter, which is (1,4)

Since the orthocenter is inside the triangle, it's inside the triangle.

The coordinates of the orthocenter is (1,4)

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The value of the variable x at the value y = 2 is 1. The correct option is A.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the expression is x + 3y = 7 and the value of y is 2. The value of x will be calculated as,

x + 3y = 7

x + ( 2 x 3 ) = 7

x = 7 - 6

x = 1

Hence, the value of x will be 1.

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The values of x in the figures are (13) 40⁰ (14) 130⁰ (15) 112⁰  (16) 23⁰  (17) 22⁰ (18) 120⁰

You should be knowledgeable with various types of angles for better understanding of the solutions

The solutions appear as follows

13) 43+57=100

=180-100=80 angle on a straight line

this means that 80/2= 40⁰

(14) 108-(80+50)

=180-130=50

x=180-50 = 130

(15) 180-44    angle on a straight line

= 136/2 68

68+44=112

(16) x=122-90   two opposite interior angles equals one exterior

x= 23⁰

(17) 103-x+2x=6x-7  (two opposite interior equals one exterior angle)

x-6x=-7-103

-5x=-110

Making x the subject of the relation we have

x= 110/5 = 22

(18) 60+60 = 120   angles of an equilateral triangle

x=120

In conclusion the various values of x are 40,130,112,23,22,120 respectively

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Answer:

300 + 12x ≥ 1500

where x represents the number of months William needs to save.

Answer: Step 1: Start by evaluating the expressions inside the parentheses first.

For the first set of parentheses: -4 - (-26) = -4 + 26 = 22

For the second set of parentheses: 7^2 - 35 = 49 - 35 = 14

Step 2: Next, substitute the values from step 1 into the original expression and perform the arithmetic in the order of operations:

BODMAS rule

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)

[22] + 19 ÷ 24 + 14

Step 3: Perform the division: 19 ÷ 24 = 0.7916666666666667

Step 4: Perform the addition: 22 + 0.7916666666666667 + 14 = 36.791666666666664

So the final answer is 36.791666666666664

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

The correct option is A one to one function.

A normal function can actually have two different input values that can produce the same answer, whereas a one to one function does not. Let’s go ahead and start with the definition and properties of one to one functions.

Given here, the function has unique image for every point x in the domain as we can observe and  is one-one as it passed the horizontal line test (as the horizontal line passes through only one point of the graph every time)

Hence, The correct option is A one to one function

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Considering the figure where PS is median bisecting ∠P.  ∠QPS is calculated to be 45 degree

A ray that divides an angle into two equal pieces is known as an angle bisector or the bisector of an angle.

In the given figure, PQ = PR hence ∠Q = ∠R isosceles triangle

∠Q + ∠R + ∠P = 180

45 + 45 + ∠P = 180

90 + ∠P = 180

∠P = 180 - 90

∠P = 90

PS is the angle bisector that divides ∠P which is angle 90 degrees, into two equal parts which are ∠QPS and ∠RPS, so that ∠QPS = ∠RPS

∠QPS + ∠RPS = 90 (adjacent angles)

∠QPS + ∠QPS = 90 (angle bisection)

2∠QPS = 90

∠QPS = 45

hence ∠QPS = 45 degrees

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The required probability of Jackie planting a tulip followed by a hyacinth is 0.1684.

Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.

To determine the probability that Jackie plants a tulip followed by a hyacinth, we can use the formula for conditional probability:

P(tulip and hyacinth) = P(tulip) × P(hyacinth | tulip).

First, we'll find the probability of Jackie choosing a tulip on the first pick: P(tulip) = 8/30 (there are 8 tulips out of 30 total bulbs in the box).

Next, we'll find the probability of Jackie choosing a hyacinth on the second pick, given that she chose a tulip on the first pick:

P(hyacinth | tulip) = 12/29 (there are 12 hyacinths remaining out of 29 total bulbs remaining in the box).

Finally, we'll multiply these two probabilities together to find the overall probability:

P(tulip and hyacinth) = 8/30 × 12/29 = 16/95 = 0.1684.

So the required probability is 0.1684.

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Answer:

[tex]\huge\boxed{\sf x = -14}[/tex]

Step-by-step explanation:

4(x + 2) = 3(x - 2)

4x + 8 = 3x - 6

4x - 3x + 8 = -6

x + 8 = -6

x = -6 - 8

[tex]\rule[225]{225}{2}[/tex]

The lengths of the sides of the triangle and the measures of the interior angles of the triangle found using the law of sines;

AB ≈ 49.4, AC = 26, BC = 26

m∠A = 64°, m∠B ≈ 31.3°, m∠C ≈ 84.7°

The law of sines states that the ratio of the length of a side of a triangle to the opposite angle to the specified side, is the same for the three sides and angles of a triangle.

The length of AB = c

The length of side BC = a = 45.0

The length of AC = b = 26

The measure of angle α = 64°

According to the law of sine, we get;

Plugging in the known values, we get;

45.0/(sin(65°) = 26/sin(β) = c/sin(γ)

sin(β) = 26 × sin(64°)/45.0

β = arcsin(26 × sin(64°)/45.0) ≈ 31.3°

m∠B = β ≈ 31.3°

According to the angle sum property of a triangle, we get;

α + β + γ = 180°

γ = 180° - (α + β)

Therefore; γ ≈ 180° - (64 + 31.3)° = 84.7°

m∠C = Angle γ ≈ 84.7°

45.0/(sin(65°) = c/sin(84.7°)

c = sin(84.7°) × 45.0/(sin(65°) ≈ 49.4

AB = c ≈ 49.4

The measure of the sides and angles of the triangle are;

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