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Rus_ich [418]
3 years ago
5

All questions, please help me thanks

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
6 0
73 teams
3min. 3sec.
18.5 miles

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Which of the following is the solution to the equation 25(z + 4) = 125? (6 points) z = 5.5 z = 3.5 z = −2.5 z = −0.5
Hunter-Best [27]

Answer:

Z=1

Step-by-step explanation:

25z+100=125

25z=25

Z=1

6 0
3 years ago
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In the midpoint rule for triple integrals we use a triple riemann sum to approximate a triple integral over a box b, where f(x,
Lana71 [14]
<span>The sub-boxes will have dimensions \frac{2-0}{2} \times \frac{2-0}{2} \times \frac{2-0}{2} =1\times1\times1=1 \ cubic \ units

x sub-intervals are 0 to 1 and 1 to 2. Midpoints are at x= \frac{1}{2} and </span><span>x= \frac{3}{4}
y sub-intervals are 0 to 1 and 1 to 2. Midpoints are at </span><span>y= \frac{1}{2} and </span><span>y= \frac{3}{4}
z sub-intervals are 0 to 1 and 1 to 2. Midpoints are at </span><span>z= \frac{1}{2} and </span><span><span>z= \frac{3}{4}</span>

Let f(x,y,z)=\cos{(xyz)}

\int\limits  \int\limits  \int\limits {f(x,y,z)} \, dV \approx f\left( \frac{1}{2} , \frac{1}{2} , \frac{1}{2} \right)+f\left( \frac{1}{2} , \frac{1}{2} , \frac{3}{4} \right)+f\left( \frac{1}{2} , \frac{3}{4} , \frac{1}{2} \right)+f\left( \frac{1}{2} , \frac{3}{4} , \frac{3}{4} \right)
+f\left( \frac{3}{4} , \frac{1}{2} , \frac{1}{2} \right)+f\left( \frac{3}{4} , \frac{1}{2} , \frac{3}{4} \right)+f\left( \frac{3}{4} , \frac{3}{4} , \frac{1}{2} \right)+f\left( \frac{3}{4} , \frac{3}{4} , \frac{3}{4} \right) \\  \\ \approx\cos{ \frac{1}{8} }+\cos{ \frac{3}{16} }+\cos{ \frac{3}{16} }+\cos{ \frac{9}{32} }+\cos{ \frac{3}{16} }+\cos{ \frac{9}{32} }+\cos{ \frac{9}{32} }+\cos{ \frac{27}{64} } \\  \\ \approx0.9922+0.9825+0.9825+0.9607+0.9825+0.9607+0.9607 \\ +0.9123 \\  \\ \approx\bold{7.734}</span>
5 0
3 years ago
What is the sum of 1/7 and 2/7
Vikentia [17]
They have the same denominator so add the numerators. It equals 3/7.
5 0
3 years ago
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What is an equation of the line that passes through the points (0, -4) and (-4, 6)?
Allushta [10]

I got this answer by first using the slope formula, which would result into \frac{0 - 4}{6 - 0}  \\for which the answer would be - ⅔ Then, the y-intercept could be found easily, since you already have it., which is (0,4). Since the format for all linear equations are y=mx+b , in which b means the y-intercept and m means the slope. So then, if you substitute - ⅔ for m and 4 for b , you would get

y =  -  \frac{2}{3} x + 4 \\

6 0
3 years ago
Rainbow bread company delivered a total of 180 loaves of bread to three markets. Savemart received 12 more loaves than vons. Ral
sasho [114]

Let vons market receive x  loaves. Then savemart received x+12 loaves and Ralphs received x + 12 + 6 = x + 18 loaves, Therefore:-

x + x + 12 + x + 18 = 180

3x + 30 = 180

3x = 150

x = 150/3 = 50  

So vons received 50, savemart received 62 and ralph's received 68 loves.  Answer


8 0
3 years ago
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