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3 years ago

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

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SOLVE FOR X (FIRST BOX) SOLVE FOR Y (SECOND BOX)

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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:

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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 the $H_0$

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

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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:

$x=34^\circ$