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liberstina [14]
3 years ago
10

PLEASE HELP! Thanks!

Mathematics
1 answer:
rodikova [14]3 years ago
8 0

Answer:

116

Step-by-step explanation:

For the rectangle 8×12 is 96.

For the triangle 8×5 is 40.

40/2 is 20.

96+20=116

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A line with a slope of 3 passes through the points (9,7) and (10,c) what is the value of c?
Zina [86]

Answer:

The answer is 4. The line passes through the point (10,4).

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
7x5=20+8+<br> Fill in the missing number to make the equation true
antoniya [11.8K]
Answer: 7

step-by-step:
okay so first you do 7*5 which is 35 and 20+8 which is 28

then you get 35=28+x (the x is the ‘missing number’)

to find x you subtract 28 from both sides to keep the equation balanced

35-28=28-28+x

so 35-28 is 7 and 28-28 is 0 so then you have 7=x and your answer is 7

you’re doing algebra but instead of using variables your teacher is saying find the ‘missing number’ haha
3 0
3 years ago
Find the linear approximating polynomial for the following function centered at the given point a.point a. b. Find the quadratic
ZanzabumX [31]

Answer:

(a)L(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x+\frac{\pi}{4})\\(b)Q(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x+\frac{\pi}{4})+\frac{\sqrt{2} }{4}(x+\frac{\pi}{4})^2\\(c)L(-0.23\pi)=-0.6626\\Q(-0.23\pi)=-0.6613

Step-by-step explanation:

Given the function:

f(x)=sin x, a=-\frac{\pi}{4}

(a)Linear approximating polynomial

L(x)=f(a)+f'(a)(x-a)\\f(a)=sin(-\frac{\pi}{4})=-\frac{\sqrt{2} }{2}\\f'(x)=cos x, a=-\frac{\pi}{4}\\f'(a)=cos (-\frac{\pi}{4})=\frac{\sqrt{2} }{2} \\Therefore:\\L(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x-(-\frac{\pi}{4}))\\L(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x+\frac{\pi}{4})

(b)Quadratic approximating polynomial

Q(x)=L(x)+\frac{1}{2}f''(a)(x-a)^2\\f''(x)=-sin(x), \\f''(a)=-sin(-\frac{\pi}{4})=\frac{\sqrt{2} }{2}\\Q(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x+\frac{\pi}{4})+\frac{\sqrt{2} }{4}(x+\frac{\pi}{4})^2

(c)When x=-0.23\pi

Using Linear Approximation polynomial

L(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x+\frac{\pi}{4})\\L(-0.23\pi)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(-0.23\pi+\frac{\pi}{4})\\L(-0.23\pi)=-0.6626

Using the Quadratic approximating polynomial

Q(x)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(x+\frac{\pi}{4})+\frac{\sqrt{2} }{4}(x+\frac{\pi}{4})^2\\Q(-0.23\pi)=-\frac{\sqrt{2} }{2}+\frac{\sqrt{2} }{2}(-0.23\pi+\frac{\pi}{4})+\frac{\sqrt{2} }{4}(-0.23\pi+\frac{\pi}{4})^2=-0.6613

4 0
3 years ago
John is planning a 250 mile long road trip. His car gets 32 miles per gallon on the highway. Gas costs $3.50 a gallon. How much
lapo4ka [179]

Answer:

$27.34

Step-by-step explanation:

250 miles divided by 32 miles per gallon equals 7.8125  which is the number of gallons needed.    Then multiple 7.8125 by the cost per gallon $3.50 to determine the cost of the fuel needed.    

7 0
3 years ago
The stock market gained 9 points on Tuesday and lost 56 points on Wednesday. It had closed on Monday at 2512 points. Where did t
myrzilka [38]
So i do believe if you just do 2512+9
This gives you 2521. Since on wednesday it lost 56 pts, subtract 56 from 2521.
This gives you 2465. I'm pretty sure this'll be your answer :D
4 0
3 years ago
Read 2 more answers
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