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8_murik_8 [283]
3 years ago
13

A coordinate grid is labeled from negative 5 to 0 to 5 on both x and y axes at increments of 1. Figure ABCD has A at ordered pai

r 1, 1, B at 3, 3, C at 4, 2, D at 4, 1. Figure A prime B prime C prime D prime has A prime at ordered pair 1, negative 3, B prime at 3, negative 1, C prime at 4, negative 2, D at 4, negative 3. Which angle in Figure A′B′C′D′ is equal to Angle BCD.? Angle D prime A prime B prime. Angle A prime B prime C prime. Angle B prime C prime D prime. Angle C prime D prime A prime.
Mathematics
1 answer:
tamaranim1 [39]3 years ago
5 0
The angles measures will not change and the alignment also will not change.
Angle B'C'D' is equal to BCD.
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Find the inverse f-1(x) for the given function f(x)=2x-5
skad [1K]

Answer:

Find the inverse f-1(x) for the given function f(x)=2x-5

Step-by-step explanation:

To find the inverse, interchange the variables and solve for  y

 f ^− 1 ( x ) = x /2 + 5/2

7 0
3 years ago
Help me please answer all because idk if I was correct scientific notation
valentina_108 [34]

Answer:

I think the first 4 are right

5-8

sorry I cant read it it it is too small so I will explain

5.1 x 10^-2 would be 0.051 just move the decimal left x spaces where x is the exponent

9

4.4 x 10^3

10

7.5 x 10^4

11

6.99 x 10^7

12

5.75 x 10^9

13

8.4 x 10^-2

14

9.9 x 10^-3

15

5.15 x 10^-7

16

3.07 x 10^-5

17

you got it right

18

you got it right

19

Singapore

Luxembourg

Australia

Egypt

Brazil

20

3,670,000,000

21

6.2 x 10^-6

22

125,000,000,000

1.25 x 10^11

Step-by-step explanation:

i hope I helped

3 0
3 years ago
Some transportation experts claim that it is the variability of speeds, rather than the level of speeds, that is a critical fact
scZoUnD [109]

Answer:

Explained below.

Step-by-step explanation:

The claim made by an expert is that driving conditions are dangerous if the variance of speeds exceeds 75 (mph)².

(1)

The hypothesis for both the test can be defined as:

<em>H</em>₀: The variance of speeds does not exceeds 75 (mph)², i.e. <em>σ</em>² ≤ 75.

<em>Hₐ</em>: The variance of speeds exceeds 75 (mph)², i.e. <em>σ</em>² > 75.

(2)

A Chi-square test will be used to perform the test.

The significance level of the test is, <em>α</em> = 0.05.

The degrees of freedom of the test is,

df = n - 1 = 55 - 1 = 54

Compute the critical value as follows:

\chi^{2}_{\alpha, (n-1)}=\chi^{2}_{0.05, 54}=72.153

Decision rule:

If the test statistic value is more than the critical value then the null hypothesis will be rejected and vice-versa.

(3)

Compute the test statistic as follows:

\chi^{2}=\frac{(n-1)\times s^{2}}{\sigma^{2}}

    =\frac{(55-1)\times 94.7}{75}\\\\=68.184

The test statistic value is, 68.184.

Decision:

cal.\chi^{2}=68.184

The null hypothesis will not be rejected at 5% level of significance.

Conclusion:

The variance of speeds does not exceeds 75 (mph)². Thus, concluding that driving conditions are not dangerous on this highway.

7 0
3 years ago
Need po ang answers ASAP nganong po exam namin
Sonja [21]
Opposite of the integers:
+56
+340
-39
-201
-1124

Solid figures:

Cube
Rectangular prism
Cylinder
Octahedron
Triangular pyramid
8 0
2 years ago
WILL GIVE BRAINLIST FOR CORRECT ANSWER (NO LINKS)
yuradex [85]

Answer:

30 in.

Step-by-step explanation:

You have to add the current length of the board with the length that was cut off.

18 + 12 = 30

6 0
3 years ago
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