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Wittaler [7]
3 years ago
13

What's the equation to solve this? Can't remember!

Mathematics
1 answer:
Lerok [7]3 years ago
7 0
Arc SCD is two times of angle SED, so arc SCD is 8x+22. Now set 8x+22, 5x-8, and 11x+10 to 360 and solve for x
You might be interested in
I need help with this question for math: "There are 5,280 feet in a mile. What part of a mile, in decimal form, will you drive u
monitta

Answer: About 0.1894 of a mile will be driven until you reach the exit 1000 feet if there are 5280 feet in a mile.

Units are used to describe the quantity of an object.

Given the conversion rate:

5280 feet = 1 mile

Next is to convert 1000feet to miles, we can write:

1000feet = x

Divide both expressions to get the value of x

This shows that about 0.1894 of a mile will be driven until you reach the exit 1000 feet

Step-by-step explanation:

8 0
3 years ago
The question is in the image
Drupady [299]

Answer:

h(t) = -5*t^2 + 20*t  + 2

Step-by-step explanation:

First, we know that the motion equation of the ball will be quadratic, so we write the equation:

h(t) = a*t^2 + b*t + c

Now we need to work with the data in the table.

h(1) = 17

h(3) = 17

h(1) = h(2) = 17

Then we have a symmetry around:

(3 - 1)/2 + 1 = 2

Remember that the symmetry is around the vertex of the parabola, then we can conclude that the vertex of the parabola is the point:

(2, h(2)) = (2, 22)

Remember that for a quadratic equation:

y = a*x^2 + b*x + c

with a vertex (h, k)

we can rewrite our function as:

y = a*(x - h)^2 + k

So in this case, we can rewrite our function as:

h(t) = a*(t - 2)^2 + 22

To find the value of a, notice the first point in the table:

(0, 2)

then we have:

h(0) = 2 = a*(0 - 2)^2 + 22

         = 2 = a*(-2)^2 + 22

            2 = a*(4) + 22

           2 - 22 = a*(4)

            -20/4 = -5 = a

Then our function is:

h(t) = -5*(t - 2)^2 + 22

Now we just expand it:

h(t) = -5*(t^2 - 4*t + 4) + 22

h(t) = -5*t^2 + 20*t  + 2

The correct option is the first one.

4 0
3 years ago
2. Find the correlation coefficient AND best fit line, of the following data use the linear model
shtirl [24]

Ans? u9999y

Step-by-step explanation:

Chelsea is making a kite in the shape of a triangle. To determine if the triangle is a right triangle, Chelsea completed the following steps.

Step 1:

Find the side lengths of the triangle: 30 inches, 24 inches, 18 inches.

Step 2:

Substitute the values into the Pythagorean theorem: 18 squared + 24 squared = 30 squared.

Step 3:

Combine like terms: (18 + 24) squared = 30 squared.

Step 4:

Evaluate each side: 1764 not-equals 900.

Chelsea says the triangle is not a right triangle. Which best describes the accuracy of her explanation?

The triangle is actually a right triangle. In step 2, Chelsea incorrectly substituted the values into the Pythagorean theorem.

The triangle is not a right triangle, but in step 2 Chelsea incorrectly substituted the values into the Pythagorean theorem.

The triangle is actually a right triangle. In step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.

The triangle is not a right triangle, but in step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.

7 0
3 years ago
Solve for B -9/3+ B equals -1
Sonja [21]

Answer:

-2

Step-by-step explanation:

-9/3=-3

-3+b=-1

b=-1+3

b=-2

7 0
2 years ago
The length of rectangle ABCD is 4 in. The length of similar rectangle DEFG is 6 in. How many times greater than the area of ABCD
Fiesta28 [93]
The length of the DEFG rectangle
is 6/4 of the length of the ABCD rectangle.

6/4=3/2 = 1,5

How many times greater than the surface of ABCD is the DEFG area?
1,5 times
7 0
4 years ago
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