I need help, I got 80 and 90 but it said I was wrong...​

Answer:

A = 18 cm²

Step-by-step explanation:

the area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

The 2 legs are perpendicular to each other , so

b = 6 and h = 6 , then

A = [tex]\frac{1}{2}[/tex] × 6 × 6 = 3 × 6 = 18 cm²

Answer:

x = 3.6

Step-by-step explanation:

8 + x = 3.5x - 1

x - 3.5x = -1 - 8

-2.5x = -9

x = 3.6

Answer:

x = 3.6

Step-by-step explanation:

8 + x = 3.5x - 1

subtract 8 from both sides

x = 3.5x - 9

subtract 3.5x from both sides

-2.5x = -9

divide by -2.5 from both sides

x = 3.6

Answer:

60%

Step-by-step explanation:

15/25 = x/100

0.60 = x/100

0.60 * 100 = x

60 = x

25 * 60% = 15

The slope of the line that goes through points (−3,−4) and (−7,16) is (-5)

What is slope?

If a line passes through [tex](x_1,y_1) \: and \: (x_2,y_2)[/tex] then slope of line will be [tex] \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Know more about line:

A line has length but not width. A line is a type of geometric shape that can move in either direction. A line consists of an infinite number of points. It is infinite and has no end on either side. The row is one-dimensional.

In geometry, the term line or straight line was introduced by ancient mathematicians to denote straight objects of negligible width and depth. It is often described as two points.

A line in a plane is often defined as a set of points whose coordinates correspond to a given linear equation in the sense of analytic geometry, while a line can be an independent object distinct from the points on it. drop geometry.

Here given two points are (−3,−4) and (−7,16).

According to rule,slope of the line that goes through points (−3,−4) and (−7,16)

[tex] = \frac{16 - ( - 4)}{ - 7 - ( - 3)} \\ = \frac{16 + 4}{ - 7 + 3} \\ = \frac{20}{ - 4} \\ = - 5[/tex]

Therefore, required slope of the equation is (-5).

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Answer:

True

Step-by-step explanation:

You would distribute the 3 across to each term( being x and -5) by multiplying 3 by x and 3 by -5 which would get you 3x-15

Answer:

true

Step-by-step explanation:

Answer:

6 3/4

Step-by-step explanation:

its on the 3 tic out of 4 .

Answer: -11 + (-13)

Step-by-step explanation: This shows that the stock has decreased by 24.

Answer:

no rest for meeeee U_U

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

y = -2x - 3

Step-by-step explanation:

Answer:

10 and 16

15 and 24

20 and 32

Step-by-step explanation:

Brainliest please?

Answer:12/16

Step-by-step explanation:

The probability that a female student has an A in the class is 0.8 or 80%.

To calculate the probability that a student has an A given that the student is female, we can use the formula for conditional probability:

[tex]P(A|F) = \dfrac{P(A U F)} { P(F)}[/tex]

where P(A|F) is the probability of having an A given that the student is female, P(A and F) is the probability of being both female and having an A, and P(F) is the probability of being female.

We are given that there are 25 students in the class, 15 of whom are female and 16 of whom have an A. We are also given that there are 12 students who are both female and have an A.

Using this information, we can calculate the probabilities as follows:

P(F) = 15/25 = 0.6

P(A and F) = 12/25

The probability that a student has an A given that the student is female is:

[tex]P(A|F) = \dfrac{P(A U F)} {P(F)} \\P(A|F) = \dfrac{\dfrac{12}{25} }{ (\dfrac{15}{25})} \\P(A|F)= 0.8[/tex]

The probability is 80%.

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Answer:

It's a 180 rotation

Step-by-step explanation:

The first set of chords are in the first quadrant while the second set of chords are in the third quadrant. If you draw the first triangle on a second sheet of paper in the same place a the first triangle and hold the paper so that the triangle you drew of the first triangle is directly on top of the first triangle and then hold the paper at the point (0,0) and move the paper 180 degrees, it doesn't matter which direction cause it's 180 degrees, the points of the triangle will have ended up in the third quadrant. So it's 180 degree rotation

Answer:

k = 4

Step-by-step explanation:

A perpendicular bisector is defined as a line or a line segment that divides a given line segment into two parts of equal measurement.

So WX = XY or WX = 1/2 WY

using WX = 7k + 5 and WY = 66

7k + 5 = 66/2

7k = 33 - 5

7k = 28

k = 4

Answer:

1 : 3, 1/3, 1 to 3

Step-by-step explanation:

if there is 1 dog, the first digit is 1

if there is 3 cats, the first digit is 3

1:3

Answer:

-3x + 40

Step-by-step explanation:

The constant given is 40 gallons and the rate at which the water in the bathtub decreases is 3 gallons per minute.

To write this as an equation we model 40 as the starting constant that is positive and, because the water is decreasing, we use a negative slope.

-3x represents the decrease in water over x intervals (Which in this case is minutes) and 40 gallons represent the initial value (water in the bathtub).

Therefore the water in the bathtub can be modeled with the equation

-3x + 40

Answer:

1/2 or 50%

Step-by-step explanation:

There is 2 sides of a coin, heads and tails, therefore, they have equal probability.

Cost of 40 pounds of apples at David's apple is $50.

Cost of 40 pounds of apples at Pam's orchards is $37.5.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Anna want to pick 40 pounds of apples,

Now, At David's apple orchard cost of first 10 pounds = $2 per pound

And, Each additional pounds $1 per pound.

So, Cost of 40 pounds of apples at David's apple is calculated as;

Cost of first 10 pounds = 10 * 2 = $20

And, Cost of 30 pounds of additional apples = 30 * 1 = $30

Hence, Cost of 40 pounds of apples at David's apple = $20 + $30

                                                                                  = $50

At Pam's orchards first cost of first 10 pounds = $1.50

And, Each additional pounds $0.75 per pound.

So, Cost of 40 pounds of apples at Pam's orchards is calculated as;

Cost of first 10 pounds = 10 * 1.50 = $15

And, Cost of 30 pounds of additional apples = 30 * 0.75 = $22.5

Hence,  Cost of 40 pounds of apples at Pam's orchards = $15 + $22.5

                                                                                      = $37.5

Therefore,

Cost of 40 pounds of apples at David's apple is $50.

Cost of 40 pounds of apples at Pam's orchards is $37.5.

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Answer:

3y-(-12) = 5(x-(-6)

3y+12= 5(x+6)

3y +12 = 5x + 30

3y = 5x +30 - 12

3y = 5x + 18

y = 5x + 6

Answer:

4/3

Step-by-step explanation:

Your Welcome

Answer:

I can't see that

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

87

Step-by-step

length x width=area

12*8=96-9=87

Answer:

f(x) = (x+10)^2 - 4

Step-by-step explanation:

vertex form is y = a(x-h)^2+k

to complete the square, we want to add a number on both sides so x^2+20x+whatver the number is, is the square of something

to find that number take 20, divide by 2, and then square it to get 100.

so, you would get f(x)+100 = x^2+20x+100+96

subtract 96 on both sides: x^2+20x+100 = f(x) + 4

factor: f(x) = (x+10)^2 - 4

Answer:

83

Step-by-step explanation:

x+7+90

x=83

The value of x is ABCD a kite would be 83 units. The correct answer would be an option (A).

A rhombus is a quadrilateral having four equal-length sides that are parallel to one another.

As we know Rhombuses' opposing interior angles are congruent, and their diagonals always bisect each other at right angles.

As per the given figure, this means (x + 7) = 90 degrees

⇒ (x + 7) = 90

⇒ x = 90 - 7

Apply the subtraction operation, and we get

⇒ x = 83

Thus, the value of x is ABCD a kite would be 83 units.

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Answer:

32

Step-by-step explanation:

4(2)+8(3) is the equivalent to 8+24, getting you to the answer of 32 once you add them together. Hope this helped! <3

Answer:

380 pages

Step-by-step explanation:

because if 30% equals 300 means 38% equals 380