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lana [24]
3 years ago
15

Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 440 miles on10 gallons

of gas. How far could you drive on 60 gallons of gas? What is the cars gas mileage?
i need this in form with fractions like ——— • ——-
Mathematics
1 answer:
Paraphin [41]3 years ago
7 0
Okay. So you can go 440 miles on 10 miles of gas. That’s 44 miles for 1 gallon of gas. For 60 miles of gas, you have to do 440 * 6. When you do that, your product should be 2,640. You can drive 2,640 miles on 69 gallons of gas and 44 miles per gallon of gas.
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8_murik_8 [283]

Answer:

12.5%

Step-by-step explanation:

7 0
3 years ago
6. Find an exact value. (1 point)
vladimir2022 [97]
<span>6 Find an exact value. 
sin 75°
</span>sin(A+B)=sin(A)cos(B)+cos(A)sin<span>(B)
</span>sin(45)=cos(45)=(2^0.5)/2    sin(30)=0.5      cos(30)=(3^0.5)/2
sin(45+30)=sin(45)cos(30)+cos(45)sin(30)=(6^0.5+2^0.5)/4
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<span>7. Find an exact value. 
sine of negative eleven pi divided by twelve.

</span>sin(-11pi/12) = -sin(11pi/12) = -sin(pi - pi/12) = -sin(pi/12) = -sin( (pi/6) / 2)

= - sqrt( (1-cos(pi/6) ) / 2) = -sqrt( (1-√3/2) / 2 ) = -(√3-1) / 2√2=(√2-√6)/4
the answer is the letter c) quantity square root of two minus square root of six divided by four.

<span>8. Write the expression as the sine, cosine, or tangent of an angle. 
sin 9x cos x - cos 9x sin x
</span>

sin(A−B)=sinAcosB−cosAsinB

sin(9x−x)= sin9xcosx−cos9xsinx= sin(8x)

the answer is the letter c) sin 8x

<span>9. Write the expression as the sine, cosine, or tangent of an angle. 
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</span>

cos(A−B)=cosAcosB<span>+sinA</span>sinB

cos(112−45)=cos112cos45<span>+sin112</span>sin45=cos(67)

the answer is the letter d) cos 67°

10. Rewrite with only sin x and cos x.

sin 2x - cos 2x

 

sin2x = 2sinxcosx<span>
cos2x = (cosx)^2 - (sinx)^2 = 2(cosx)^2 -1 = 1- 2(sinx)^2</span>

sin2x- cos2x=2sinxcosx-(1- 2(sinx)^2=2sinxcosx-1+2(sinx)^2

sin2x- cos2x=2sinxcosx-1+2(sinx)^2

<span>the answer is the letter <span>b) 2 sin x cos2x - 1 + 2 sin2x</span></span>
4 0
3 years ago
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Question<br> 9<br> What is the circumference of a circle whose diameter is ?<br> 2
ZanzabumX [31]

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Step-by-step explanation:

6 0
2 years ago
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I’m short word form 2,000,000+500,000+30,000+5,000+8
sasho [114]

Answer:

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4 0
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Jamie had 4/5 of a spool of twine. He then used 1/2 of a spool of twine to make friendship knots. Over. Explain how you know whe
Ganezh [65]

Answer:

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Step-by-step explanation:

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So we have :

8/10 - 5/10

Since denominators are equal ,we go ahead and subtract

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4 0
3 years ago
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