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3 years ago

Simplify 3x^2+ 13x – 10 9x^2 - 4

Mathematics

1 answer:

svetlana [45]3 years ago

4 0

Answer:

The top one is (3x−2)(x+5)

the bottom one is (3x−2)(3x+2)

Step-by-step explanation:

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A central angle in a circle with a radius of 7in. intercepts an arc with a length of 9in. What is the radian measure of the cent

Vitek1552 [10]

A central angle in a circle with a radius of 7in. intercepts an arc with a length of 9in. What is the radian measure of the central angle?

8 0

3 years ago

Help pls ( I took a picture)

almond37 [142]

Answer:

The domain is [0,25] and the range is [0,20]

Step-by-step explanation:

The domain is the range of numbers and that the x value can be in the graph. The range is the range of numbers that the y value can be in the graph.

For the domain, the lowest x value you have is zero in the biggest x value is 25. since there is a dot when x is 25 and when x is 0 your answer is in brackets.

For the range, the lowest y value is 0 and the highest y value is 20. once again your answer is in brackets because there is a point when y is 0 and when y is 20.

3 0

3 years ago

A square pyramid has a base that measures 8 inches on each side.The height of the pyramid is 15.5 inches. Determine the volume o

wel

Answer:

Step-by-step explanation:

Volume = 1/3 * B * h

B = 8 * 8 = 64

h = 15.5

Volume = 1/3 * 64 * 15.5

Volume = 2976 cu in

8 0

3 years ago

Please help me ASAP! Triangle ABC is located at A (2, 3), B (4, 4), and C (6, 3). Zackary says that triangle ABC is an isosceles

son4ous [18]

<h2>Hello!</h2>

The answer is:

The second option,

Zackery, because AB=BC

To identify which type of triangle is the triangle formed by the given points, first, we need to calculate the distance between the points.

So, finding the distances we have:

From A to B: (2,3) and (4,4)

$distance=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}\\\\distance=\sqrt{(4-2)^{2} +(4-3)^{2}}=\sqrt{2^{2} +1^{2} }=\sqrt{4+1}=\sqrt{5}=2.24units$

From B to C: (4,4) and (6,3)

$distance=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}\\\\distance=\sqrt{(6-4)^{2} +(3-4)^{2}}=\sqrt{2^{2} +(-1)^{2} }=\sqrt{4+1}=\sqrt{5}=2.24units$

Hence, since the distances AB and BC are equal, the triangle is an isosceles triangle, so the answer is:

Zackery, because AB=BC

Have a nice day!

7 0

3 years ago

Help with this question(Will give brianlist and thanks)(Determine the area)

lana [24]

Answer:

The area of trapezium is (x+11) cm².

Step-by-step explanation:

Given that the formula of area of trapezium is :

$area = \frac{1}{2} \times (a + b) \times h$

In the formula, a and b represents the length of trapezium and h is the height. So you have to substitute the following expressions into the formula :

$let \: a = 5 \\ let \: b = x + 6 \\ let \: h = 2$

$area = \frac{1}{2} \times (5 + x + 6) \times 2$

$area = \frac{1}{2} \times 2 \times (x + 11)$

$area = 1 \times (x + 11)$

$area = (x + 11) \: {cm}^{2}$

3 0

4 years ago

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