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kramer
4 years ago
9

Evaluate the expression 8z + 3; z=8

Mathematics
1 answer:
weqwewe [10]4 years ago
3 0
<span>Simplifying 8z + 3z = 8 Combine like terms: 8z + 3z = 11z 11z = 8 Solving 11z = 8 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Divide each side by '11'. z = 0.7272727273 Simplifying z = 0.7272727273</span>
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What is the difference between the least common and the most common pet lengths? A line plot with the title Pet Measurements and
Alexxx [7]

Answer:

Step-by-step explanation:

In the line plot, the red dots above each measurement on the number line indicates the frequency of that particular measurement.

From the information given,

Measurement Frequency

fifteen inches 4

Twenty five inches 7

Thirty five inches 3

Fourty five inches 5

Fifty five inches 1

Therefore, the most common pet length is Twenty five inches.

The least common pet length is Fifty five inches.

The difference between the least common and the most common pet lengths is 7 - 1 = 6

6 0
4 years ago
Can somebody help me with this quickly whoever answers first gets a thanks
Mariana [72]

G. From the origin move right 3 units,then up 6 units

H. From the origin move left 2 units,then up 11 units

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5 0
3 years ago
Just a little bit of math hw
blsea [12.9K]

Answer:

Put 0 in the box.

Step-by-step explanation:

The value x = 0 if replaced in the given equation will always make the denominator zero.

Best Regards!

7 0
4 years ago
Read 2 more answers
Last week, Martina drove m miles. This week, she drove 166 miles. Using m, write an expression for the total number of miles she
Soloha48 [4]

Answer:

T=m+166

Step-by-step explanation:

T is the total of miles that she drove in the two weeks. We know that last week she drove a quantity of m miles. This week she drove a quantity of 166 miles. Then we just need to add the two values m+166.

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5 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
the answer is the letter d) quantity square root of six plus square root of two divided by four.

<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
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<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>

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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
4 years ago
Read 2 more answers
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