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castortr0y [4]
2 years ago
7

Please tell me what is (7+3x)4

Mathematics
2 answers:
Savatey [412]2 years ago
5 0

Answer:

28+12x

Step-by-step explanation:

Multiply 7 with 4

Multiply 3x with 4

puteri [66]2 years ago
4 0

Answer:

28+12x

im pretty sure that is right

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The Federal Government is stepping up efforts to reduce average response times of fire departments to fire calls. Nationwide, th
TiliK225 [7]

Answer: in order to qualify, the time must be at least 15.93 minutes

Step-by-step explanation:

Let x be a random variable representing the average response times of fire departments to fire calls. Since it follows a normal distribution, we will determine the z score by applying the formula,

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = population standard deviation

From the information given,

µ = 12.8 minutes

σ = 3.7 minutes

in order to qualify for the special safety award, the probability value would be to the right of the z score corresponding to 80%

The z score corresponding to 80% on the normal distribution table is 0.845

Therefore,

0.845 = (x - 12.8)/3.7

0.845 × 3.7 = x - 12.8

3.13 = x - 12.8

x = 12.8 + 3.13 = 15.93

7 0
3 years ago
If UV = 6 and TV = 12, what is TU?
love history [14]

Answer:

TU = 6

Step-by-step explanation:

Using the Segment Addition Postulate, we know that TU + UV = TV, and since UV = 6 and TV = 12, we know that TU + 6 = 12, therefore, TU = 6.

3 0
3 years ago
The expression 4c gives the science test score that a student recives c correct problems. what score is for 18 correct problems
Shtirlitz [24]
4c
4(18)
72 is the score for 18 correct problems
5 0
3 years ago
a tree casts a shadow that is 20 ft long. the angle of elevation of the sun is 29°. how tall is the tree?
mars1129 [50]
You can use the trig ratios. Draw a diagram to see which one is appropriate. 
Tan would be used.
Tan29=x/20
20Tan29=x
Put this into your calculator and see what you get
3 0
3 years ago
4x=12+12<br>Find the value of x​
stepladder [879]

Answer:

\sf\longmapsto \: x = 6

Step-by-step explanation:

\sf\longmapsto \: 4x = 24

\sf\longmapsto \: x = 24 \div 4

\sf\longmapsto \: x = \: 6

4 0
3 years ago
Read 2 more answers
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