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4 years ago

Is (1,1) a solution of the system?

Mathematics

2 answers:

alexdok [17]4 years ago

6 0

Answer:

Step-by-step explanation:

xxTIMURxx [149]4 years ago

3 0

Yes it is the solution to the system

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(-2)³ + 4 ÷ (-15 + 9)(3) - 4?

dsp73

Answer:

$-\frac{110}{9}$

Step-by-step explanation:

Given expression is $(-2)^{3} +4/(-15+9)(3)-4$

Let us perform the operations inside the parentheses first.

$-8 +4/(-6)(3)-4$

$-8 +4/(-18)-4$

$-8-\frac{4}{18} -4$

$=-12-\frac{4}{18}$

$=-12-\frac{2}{9}$

$=-\frac{110}{9}$

4 0

4 years ago

If anyone knows help :]

lana66690 [7]

Angle EBD and Angle DBE are adjacent

6 0

3 years ago

Will Mark Brainlest helpppp

Anvisha [2.4K]

Answer:

R = $\left[\begin{array}{ccc}-3&-2\\1&-3\\\end{array}\right]$

Step-by-step explanation:

P - Q + R = I ( I is the identity matrix )

$\left[\begin{array}{ccc}2&4\\3&5\\\end{array}\right]$ - $\left[\begin{array}{ccc}-2&2\\4&1\\\end{array}\right]$ + R = $\left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]$ ( subtract corresponding elements )

$\left[\begin{array}{ccc}2-(-2)&4-2\\3-4&5-1\\\end{array}\right]$ + R = $\left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]$

$\left[\begin{array}{ccc}4&2\\-1&4\\\end{array}\right]$ + R = $\left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]$

R = $\left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]$ - $\left[\begin{array}{ccc}4&2\\-1&4\\\end{array}\right]$ = $\left[\begin{array}{ccc}-3&-2\\1&-3\\\end{array}\right]$

6 0

3 years ago

2.<br> Which expression is equivalent to Xy 2/9

Lelu [443]

Answer:

4/18 or divide both by anything or times it

Step-by-step explanation:

3 0

3 years ago

A manufacturing process is designed to produce bolts with a 0.25-in. diameter. Once each day, a random sample of 36 bolts is sel

Troyanec [42]

Answer:

0.6170

Step-by-step explanation:

Given that a manufacturing process is designed to produce bolts with a 0.25-in. diameter.

i.e. no of bolts which are produced as per standard is X means then

X is normal with mean = 0.250 and std dev = 0.04

No of bolts tested = 36

If this mean falls outside the interval (0.230,0.270) the production would be shut down.

i.e. P(|x-25|>0.20) =production shut down probability

$P(|x-25|>0.20)\\=P(|Z|>0.5)\\=2(0.5-0.1915)\\= 0.6170$

3 0

3 years ago