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VARVARA [1.3K]
3 years ago
15

Let h(x)=

ddle" class="latex-formula"> and k(x)=2x+7

Find the value of h(k(3))
Mathematics
1 answer:
PolarNik [594]3 years ago
7 0
So if we have h(x) if multiplication isolate k-3andx-6 2x-3 = 6+7=13 value=62
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Solve the equation for the specified variable.<br> T= BA-9, for B<br> What does b=
NARA [144]

9514 1404 393

Answer:

  B=\dfrac{T+9}{A}

Step-by-step explanation:

Add 9 to both sides of the equation, and divide by the coefficient of B.

  T = BA -9

  T +9 = BA

  (T +9)/A = B

We can rewrite that with B on the left:

  B = (T +9)/A

4 0
3 years ago
A rectangular window measures 54 inches by 24 inches. There is an a = 14-inch wiper blade attached by a b = 5-inch arm at the ce
nika2105 [10]
It the wiper blade (and arm) made a full rotation, 2 circles would be formed.

One small circle with radius b, and a larger circle with radius a+b.


The areas of these 2 circles are respectively:

\pi b^2=\pi\cdot 5^2=25 \pi (in^2)    and

\pi (a+b)^2=\pi (14+5)^2=361\pi (in^2)


120° is 1/3 of a complete angle 360° which form a circle, so the areas formed by the arm of length b, and the arm + the wiper blade (a+b) are:

\frac{25 \pi}{3} and \frac{361\pi}{3} in squared respectively.

the actual wiped area is \frac{361\pi}{3}-\frac{25 \pi}{3}= \frac{336\pi}{3}=112\pi \approx351.7 (in squared)


Area of the window is 54*24= 1296 (in squared)

thus, the ratio of the wiped area to the whole area of the window is 351.7/1296=0.271

Converted to percentages, this is 27.1%


Answer: 27.1%

3 0
3 years ago
PLS HELP I GIVE BRAINLIEST
barxatty [35]

Answer:

<h2>MN</h2>

Step-by-step explanation:

If ΔLMN ≅ ΔXYZ, then corresponding angles and corresponding segments are congruent:

∠L ≅ ∠X

∠M ≅ ∠Y

∠N ≅ ∠Z

and

LM ≅ XY

MN ≅ YZ

LN ≅ XZ

7 0
2 years ago
Read 2 more answers
You originally draw a design for an art contest on a 3 in. x 5 in. card. The second phase of the contest requires the drawing to
bagirrra123 [75]
The answer is 6.3

3 / 5 = x / 10.5
x = 6.3
6 0
2 years ago
Read 2 more answers
Kyle drives 330 miles on 15 gallons of gas. How many miles per gallon (mpg) did Kyle get? A) 12 mpg B) 16 mpg C) 19 mpg D) 22 mp
Vikki [24]

Answer:

d. 22mpg

Step-by-step explanation:

330/22

5 0
3 years ago
Read 2 more answers
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