Answer:
ADD ME ON FORtXVXVVXVXNIZZLE KE2DAEV12
Step-by-step explanation:
<span>f(x) =-(x+9)(x-21)
Manipulating algebrically,
We get,
</span>f(x) =-(x+9)(x-21)
= -(x^2 -21x + 9x - 189)
= -(x^2 -12x - 189)
= -x^2 + 12x + 189
Axis of symmetry = -b/2a
plugging the values,
x = -12/-2
= 6
The true statement about the right rectangular prisms include:
- The angles in the smaller prism measure 90 degrees.
- The perimeter of the rectangular bases changes by a factor of 2.
- The rectangular bases changes by a factor of 4.
<h3>How to illustrate the prism?</h3>
It should be noted that a prism simply means a shape that has two identical shapes that face each other.
Here, the angles in the smaller prism measure 90 degrees and the perimeter of the rectangular bases changes by a factor of 2.
Learn more about prism on:
brainly.com/question/23963432
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Answer:
448
Step-by-step explanation:
This is a proportion question. Keep the heights on one side of the proportion and the shadow length on the other.
height ratio shadow ratio
40 cm / x = 25 / 280 Cross multiply
25x = 40 * 280 Combine
25x = 11200 Divide by 25
x = 11200/25
x = 448 cm
The height of the corn plant is 448 cm
Answer:
42
Step-by-step explanation:
the 2 part of the ratio refers to 14 girls , then
14 ÷ 2 = 7 ← value of 1 part of the ratio , so
4 parts = 4 × 7 = 28 ← number of boys
total members = 14 + 28 = 42