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2 years ago

I need help with these math problems Answer with format17.1819.etc.

Mathematics

1 answer:

Gnoma [55]2 years ago

5 0

Answer:

17) 9.05

18) 15.13

19) 2.641

text me if u need help

Step-by-step explanation:

to get x you would need to get x alone by adding of subtracting

ex) 17 subtract .37 from both sides to get x ---> x = 9.42 - .37

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3. Find f[h(a+4)], given the functions below. *

mote1985 [20]

Answer:

C 5a^2 +70a +240

Step-by-step explanation:

We have given these following functions:

$f(x) = 5x, g(x) = -2x + 1, h(x) = x^2 + 6x + 8$

h(a+4)

This function is:

$h(a+4) = (a+4)^2 + 6(a + 4) + 8$

$h(a+4) = a^2 + 8a + 16 + 6a + 24 + 8$

$h(a+4) = a^2 + 14a + 48$

f[h(a+4)]

$f(x) = 5x$

Thus

$f(h(a+4)) = f(a^2+14a+48) = 5(a^2 + 14a + 48) = 5a^2 + 70a + 240$

The correct answer is given by option C.

8 0

3 years ago

What are the x-intercepts of the graphed function?

DIA [1.3K]

Answer:

(-2,0) and (2,0)

Step-by-step explanation:

The x-intercepts are where the parabola touches the x-axis (aka when y is 0).

6 0

2 years ago

Triangle P Q R is shown. The length of P Q is 20 and the length of P R is 12. Angle Q P R is 68 degrees and angle P Q R is 36 de

Tom [10]

Answer:

<h2> 112.3 square units</h2>

Step-by-step explanation:

Find the sketch of the triangle attached.

Area of the triangle = $\frac{1}{2}|PQ| |PR| sinQPR$

Given PQ = 20, PR = 12 and ∠QPR = 68°

Area of the triangle = 1/2 * 20 * 12 * sin68°

Area of the triangle = 120sin68°

Area of the triangle = 112.26 square units

Area of the triangle ≈ 112.3 square units (to the nearest tenth of a square unit)

3 0

2 years ago

Read 2 more answers

Jeans are on sale for $16 per pair. How much will 4 pairs of jeans cost?

yKpoI14uk [10]

Answer:

4 pairs cost $64

Step-by-step explanation:

16*4=64$

5 0

3 years ago

Help. Please. I need help.

malfutka [58]

Answer:

C) 3x+20 < 50

Step-by-step explanation:

Since 50 is the limit as to what Mary wants to spend, the number on the left side should never be over 50, meaning that the total will be 'less' than 50

The 20 comes from how much she wants, meaning that 3x would be less than 10 dollars a gift.

5 0

2 years ago

I need help with these math problems Answer with format17.1819.etc.​

I need help with these math problems Answer with format17.1819.etc.