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Blababa [14]
3 years ago
15

Can someone help me with this?

Mathematics
2 answers:
Gre4nikov [31]3 years ago
7 0
D

Hope this helps!!!!!
zubka84 [21]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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The temperature, T, for an oven can be described by the equation T = 44m +67 for the
My name is Ann [436]

Answer:

T-intercept = 67

Step-by-step explanation:

Given

T = 44m + 67

Required

Calculate and interpret the t-intercept

To calculate the t-intercept, we simply set the number of minutes (m) to 0

i.e. substitute 0 for m in T = 44m + 67

T = 44 * 0 + 67

T = 0 + 67

T = 67

Hence, the T-intercept is 67

The interpretation is that the initial temperature when the oven is turned on is 67 degrees

8 0
3 years ago
Which of the following properties can numbers have?
mr Goodwill [35]
They definitely can be positive they can be negative and they can have an absolute value but I would choose they both can be positive and negative
6 0
3 years ago
Which rate is equivalent to `72/9`? A. `8/1` B. `1/8` C. `8/2` D. `2/8`
Fed [463]

the answer is letter A. 8/1

4 0
3 years ago
Which statement is true about the polynomial
Ghella [55]

Answer:3 terms and a degree of 9

Step-by-step explanation:

7 0
3 years ago
A student group claims that first-year students at a university must study 2.5 hours (150 minutes) per night during the school w
AlekseyPX

Answer:

We have strong evidence that on average, students study less than 150 minutes per night during the school week

Step-by-step explanation:

Normal distribution:

mean     μ₀ = 150

Sample:

Sample size    n = 272

Sample mean   x = 141

Sample standard deviation  s  = 66

The standard error of the sample mean  SE = σ /√n

SE = 66/√272

SE = 66 / 16,49

SE = 4

Test Hypothesis:

Null hypothesis                            H₀             x  =   μ₀

Alternative hypothesis                Hₐ            x <    μ₀

z(s)  test statistics is:

z(s)  =  ( x  -  μ₀ ) / s/√n

z(s) = - 9 /4

z(s) =  -  2,25

p-value  for that z(s)      p-value  = 0,0122

Then for α =  0,05 p-value < 0,05

We are in the rejection region we need to reject H₀

7 0
3 years ago
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