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3 years ago

BRAINLIEST AND 20 POINTS

Mathematics

2 answers:

jek_recluse [69]3 years ago

5 0

Sin x = cos (90 - x)

Its B

Mice21 [21]3 years ago

3 0

Taking a wild guess here but I think it is D...

If wrong, let me know.

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A line that includes the point (9, 10) has a slope of -1/9 what is its equation in point-slope

Molodets [167]

You need to add by the root and then you will get the answer

7 0

3 years ago

What is the product

cricket20 [7]

Answer:

$\left[\begin{array}{cc}6&18\\\end{array}\right]$

Step-by-step explanation:

To find the product of the matrices: $\left[\begin{array}{cc}4&2\\\end{array}\right]$ × $\left[\begin{array}{cc}-2&5\\7&-1\\\end{array}\right]$

Multiply rows of the first matrix by the columns of the second matrix.

(4 × (–2) + 2 × 7 4 × 5 + 2 × (–1))

After simplifying this, we get the product $\left[\begin{array}{cc}6&18\\\end{array}\right]$

Hence, $\left[\begin{array}{cc}4&2\\\end{array}\right]$ × $\left[\begin{array}{cc}-2&5\\7&-1\\\end{array}\right]$ = $\left[\begin{array}{cc}6&18\\\end{array}\right]$

6 0

3 years ago

Use set builder notation to represent the following set. {... -3, -2, -1, 0} {x | x Z, x ≤ 0} {x | x N, x ≤ 0} {x | x R, x ≤ 0}

IceJOKER [234]

Answer:

$\boxed{\boxed{\left\{x\ |\ x\ \epsilon\ Z,\ x \le 0}\right\}}}$

Step-by-step explanation:

Set builder notation-

It is a notation for representing a set by enumerating its elements and stating the properties that its members must satisfy.

The given set is,

$\left \{.... -3, -2, -1, 0 \right \}$

This set is comprised of all negative integers. So symbol Z should be used in this case.

The set builder notation for this set is,

$\left\{x\ |\ x\ \epsilon\ Z,\ x \le 0}\right\}$

7 0

4 years ago

What is the 100th term in the following sequence: 25, 36, 49, 64...

Mandarinka [93]

The sequence is given by (n+5)²
For n=100:
(100+5)² = 105² = 11025

7 0

3 years ago

4 thousands less than 1.895

solmaris [256]

Answer:

You mean thousandths?

It’s 1.891

Step-by-step explanation:

The thousandths place is the 3rd digit to the right of the decimal. 5-4=1

8 0

3 years ago

Read 2 more answers