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SIZIF [17.4K]
2 years ago
8

Anybody know the anwser

Mathematics
1 answer:
Darya [45]2 years ago
3 0

Answer:

A 3 goes in the parentheses. The expression evaluates to 59.

Step-by-step explanation:

b = 3

2b^3 + 5 =

= 2(3)^3 + 5

= 2 * (3 * 3 * 3) + 5

= 2 * 27 + 5

= 54 + 5

= 59

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NEED HELP ASAP <br> given m||n find the value of x
solniwko [45]

The alternate interior angle theorem states that when two parallel lines are cut by a transversal, the resulting alternate interior angles are congruent.

This means that 6x-8=5x+14

x=22

Hope this helps. 頑張って!

4 0
3 years ago
20baskets into 4minutes
Crank
Put this into ratio form:

20 baskets/ 4 minutes.

This means for every 4 minutes, you can make 20 baskets.

Now solve for 1 minute...how many baskets can you make in one minute.

You can solve this in many ways:

1. Cross Multiply:

20/4 = x/1...20×1= 20 ÷ 4= 5 baskets per minute

2. Simplify- (simpler way to solve)

20 baskets ÷ 4 minutes= 5 baskets in 1 minute 

3. Critical Thinking:

how many times can 4 go into 20? 5 times. So there are:
 
5 baskets per minute
6 0
3 years ago
The authors of a certain paper describe a study to evaluate the effect of mobile phone use by taxi drivers in Greece. Fifty taxi
ladessa [460]

Answer:

The answer is below

Step-by-step explanation:

The mean (μ) = 3.7 m, standard deviation (σ) = 1.17 m, confidence (C) = 95% = 0.95, sample size (n) = 50

a) α = 1 - C = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

The z score of α/2 is the same as the z score of 0.475 (0.5 - 0.025) which is 1.96. Hence:

The margin of error (E) = z_\frac{\alpha}{2} *\frac{\sigma}{\sqrt{n}  }=1.96*\frac{1.17}{\sqrt{50} } =0.32

The confidence interval = μ ± E = 3.7 ± 0.32 = (3.38, 4.02)

b) This means that we are 95% sure that any distance between the taxi and the lead car is between 3.38 m and 4.02 m

6 0
3 years ago
What is the surface area of this design 5,8,4,8,4 inch
Gwar [14]

Answer:

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

5 0
2 years ago
A certain windshield wiper is 10 inches long. The rubber blade is 6 inches long and attached at the outside end. If the wiper sw
Sloan [31]
Area of sector=fraction of sector times area of circle
fraction of sector=degrees/360
and area of circle=pir^2

so
hold  a sec, we have the wiper on the outside, so we want to find the outside ring thing
do
area big sector-area small sector
or even better
(degrees/360) times (area big-areasmall)
big is 10
small is  4 (10-6=4)
areabig=10^2 times pi or 100pi
areasmall=4^2 times pi or 16pi
areabig-areasmall=100pi-16pi=84pi

then find the fraction

84pi times (150/360)=35pi square inches
4 0
3 years ago
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