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Kitty [74]
4 years ago
13

Which ratios can form a proportion

Mathematics
2 answers:
anyanavicka [17]4 years ago
3 0
The anawer is d.5/4,4/5
Viefleur [7K]4 years ago
3 0
C- 5/45 , 4/36
To find the answer, you have to cross multiply it.
Sorry if the drawing I showed you is a bit messy.

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Jimmy has a diecast metal car that is a scale model of an actual race car. If the actual length of the car is 10 feet 6 inches a
kirill115 [55]
The scale factor would be -8 because...

126 inches / 7 inches = 8 inches. 

Because the car is bigger than the scale, it would be a negative scale factor.
8 0
3 years ago
Researchers want to determine whether or not there is a difference in systolic blood pressure based on how many hours a person e
VARVARA [1.3K]

Answer:

(1) The between groups degrees of freedom is 2.

(2) TRUE.

(3) The correct option is (a).

Step-by-step explanation:

(1)

The between groups degrees of freedom for the study is:

\text{df}_{B}=k-1\\=3-1\\=2

Thus, the between groups degrees of freedom is 2.

(2)

The hypothesis for he one-way ANOVA is:

<em>H</em>₀: All the means are equal.

<em>Hₐ</em>: At least one of the mean is not equal.

The output of the ANOVA test is attached below.

The <em>p</em>-value of the test is 0.00005.

<em>p</em>-value = 0.00005 < <em>α</em> = 0.05

Thus, the result is statistically significant.

The statement is TRUE.

(3)

As the <em>p</em>-value of the test is less than the significance level, the researcher should make the decision to reject the null hypothesis.

The correct option is (a).

6 0
3 years ago
Which of the following ordered pairs satisfies the following linear pairs? 3x+2y=-2 x+2y=2​
melisa1 [442]

Answer:

-2

Step-by-step explanation:

you will group the like terms and add and subtract the remaining digits

3 0
2 years ago
Read 2 more answers
Use an algebraic equation to find the measure of each angle that is represented in terms of X
professor190 [17]

Answer:

16, 74

Step-by-step explanation:

3x +10 + 12x +50 = 90

15x + 60 = 90

15x = 90 -60

15x = 30

x = 30/15

x = 2

3x + 10 = 3*2 +10 = 6 +10 = 16

12x + 50 = 12*2 +50 = 24 + 50 = 74

5 0
3 years ago
What is the value of m?
zzz [600]

Answer:

23

Step-by-step explanation:

400 - 8m = 216

move 8m to the other side

400 = 216 + 8m

subtract 216 from both sides

8m = 184

divide both sides by 8

m = 23

3 0
3 years ago
Read 2 more answers
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