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2 years ago

Please help me

Mathematics

1 answer:

larisa [96]2 years ago

6 0

Answer: C

Step-by-step explanation:

They are substituting PQ=25 from steps 1 and 3.

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The equation for the cross section of a parabolic satellite television dish is y = 1/45 x2, measured in inches. How far is the f

patriot [66]

Answer:

11.25

Step-by-step explanation:

The equation for a parabola is:

y − k = 1/(4p) (x − h)²

where (h, k) is the vertex and p is the distance from the focus to the vertex.

1/(4p) = 1/45

4p = 45

p = 11.25

The distance from the vertex to the focus is 11.25 inches.

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3 years ago

Which fraction represent the given fraction rewritten with their LCD?<br> 1/3x-9y, 6/5x-15y

Firlakuza [10]

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3 years ago

Figure ABCD is a parallelogram. What is the value of n?

Zigmanuir [339]

Answer

Find out the what is the value of n.

To prove

By using the parallelogram property .

In parallelogram opposite angels are congruent .

As shown in the figure .

∠B = ∠ D

As given

∠B = (2n + 32)°

∠D = (4n - 2)°

(2n + 32) = (4n - 2)

solving the above

4n -2n = 32 +2

2n = 34

$n = \frac{34}{2}$

n = 17

Therefore the value of n is 17 .

5 0

3 years ago

Read 2 more answers

What is the answer to 7(1 + 4k)

Sophie [7]

How to solve it:
•1. multiply 7 x 1= 7
•2. multiply 7 x 4k= 28k

so the answer is: 7+28k

i hope i have been helpful :)

8 0

3 years ago

Read 2 more answers

Solve this question

love history [14]

Answer:

$\frac{4x - 11}{2} \leqslant 3x - 3 < 4 \\ \\ = > \frac{4x - 11}{2} \leqslant 3x - 3 \: and \: 3x - 3 < 4 \\ \\ < = > 4x - 11 \leqslant 6x - 6 \: \: and \: \: 3x < 7 \\ \\ < = > 2x \geqslant - 5 \: \: and \: \: x < \frac{7}{3} \\ \\ < = > \frac{ - 5}{2} \leqslant x < \frac{7}{3}$

=> the greatest integer is 2

the smallest integer is -2

3 0

3 years ago