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torisob [31]
3 years ago
14

Find 2D + A. Please

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer:

Below in bold.

Step-by-step explanation:

2D  = [1*2 0*2]  =   [2 0]

         [0*2 1*2]       [0 2]

2D + A =          [2 0]   +  [1  -1]     =    [3 -1]

                        [0 2]       [3 -2]           [3 0]

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What is the answer <br>3y+6=-2x
Anika [276]
SOLVE FOR X (FIRST BOX) SOLVE FOR Y (SECOND BOX)

7 0
3 years ago
At what height was the balloon at 9:45 AM and what was it doing ?
AfilCa [17]

Answer:

400

Step-by-step explanation:

because if u look sideways it shows just one step up and it's 400 or it can be 500 to get 9:45

4 0
4 years ago
Each algorithm is applied to a group of 52 sample problems. The new algorithm completes the sample problems with a mean time of
dem82 [27]

Answer:

Therefore we fail to reject the Null hypothesis H_0

Because the is no sufficient evidence to support the claim of the alternative hypothesis H_a

Step-by-step explanation:

From the question we are told that

Sample size n_1 =52

Mean time 1 \=x_1=24.04\ hours

Mean time 2 \=x_2=24.52\ hours

Standard deviation \partial _1=5.769

Standard deviation \partial _2=5.556

Level of significance 0.05

The null hypothesis is H_o: \mu_1=\mu_2

Alternative hypothesis H_a: \mu_1

Generally the test statistics is mathematically represented as

      Z= \frac{\=x_1-\=x_2}{\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}}

     Z= \frac{24.04-24.52}{\sqrt{\frac{5.769^2}{52}+\frac{5.5562^2}{52}}}

     Z= -0.4321583379

     Z= -0.43

From Table the Z-critical value at \alpha =0.05\ is\ -1.6449

Therefore

Zcal> Zcritical

(-0.43)=(-1.645)

Generally we fail to reject the null hypothesis H_0 at \alpha  = 0.05

Therefore we fail to reject theH_0

Because the is no sufficient evidence to support the claim of H_a

5 0
3 years ago
Given the diagram of parallelogram LMNO, solve for s.
Evgen [1.6K]
< o and < m are congruent because opposite angles are congruent
3t - 15 =  2t + 10
3t - 2t = 10 + 15
t = 25

3t - 15 = 3(25) - 15 = 75 - 15 = 60...< m = 60

< m and < o are consecutive angles and they are supplementary....so they add up to 180
< m + < o = 180
60 + < o = 180
< o = 180 - 60
< o = 120

3s = 120
s = 120/3
s = 40

6 0
4 years ago
Read 2 more answers
Two angles are complementary. one angle measure 22 degrees. The other measure 2x degrees. solve for x.​
snow_tiger [21]

Answer:

x=34^\circ

Step-by-step explanation:

Complementary angles sum up to 90^\circ.

90-22=2x\\\\x=34^\circ

Best Regards!

4 0
3 years ago
Read 2 more answers
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