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2 years ago

Please help me with this question, i need a lot of help.

Mathematics

1 answer:

vivado [14]2 years ago

3 0

Answer:

The answer is C

Step-by-step explanation:

117 + 23 =140 and you have $140 in all so you spent it all

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Pediatricians work an average of 48 h per week. The standard deviation is 12 hours. What percentage of pediatricians work more t

cricket20 [7]

Answer: 2.28 %

Step-by-step explanation:

Given : Mean : $\mu=\ 48$

Standard deviation : $\sigma= 12$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x = 72

$z=\dfrac{72-48}{12}=2$

The p-value = $P(2$

$1-0.9772498=0.0227502\approx0.0228$

In percent, $0.0228\times100=2.28\%$

Hence, the percentage of pediatricians work more than 72 h per week = 2.28 %

4 0

2 years ago

Suppose there is a 1.2°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on

Nesterboy [21]

Answer: $49.7^{\circ}F$

Step-by-step explanation:

Given

The temperature on the ground is $56.9^{\circ}F$

temperature drop observed is $1.2^{\circ}F\ \text{per 1000 ft}$

The height of the plane is $6000\ ft$

The total increase in height per $1000\ ft$ is $6$ units

Temperature drop is

$\Rightarrow 1.2\times 6=7.2^{\circ}F$

The temperature at that altitude is

$\Rightarrow 56.9-7.2=49.7^{\circ}F$

5 0

2 years ago

Warm-Up

Tanzania [10]

Answer:

I think the answer is 200 feet

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

The table contains the lengths of the sides of different triangles. Do the given side lengths form a right triangle?

WARRIOR [948]

Answer:

ans: it's order wise

a) yes

b) no

c) no

d) no

Step-by-step explanation:

use pythagoras theorem

h² = p² + b²

data given satisfying the theorem form right angled triangle

8 0

2 years ago

F(x)=(1÷4)^x Is it and Incease,decrease or constant

Fynjy0 [20]

Answer:

Decrease

Step-by-step explanation:

The general form of exponential functions is $a$ · $b^x^-^h +k$ . If $b$ , or the base with the exponent, is bigger than 1, than the graph increases, experiencing growth. If the base is somewhere between 0 and 1, then the graph decreases, experiencing decay.

$\frac{1}{4}$ is a number in between 0 and 1, thus the graph would decrease.

5 0

2 years ago