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4 years ago

What is the answer of 1-3 + 1-4

Mathematics

1 answer:

Art [367]4 years ago

8 0

Answer:

-5

Step-by-step explanation:

1-3+1-4

-2+1-4

-1-4

-5

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A wheel spines at a rate of 41 revolutions per minute. how many revolutions per hour does it spin

ch4aika [34]

This is simple math, you know 60 minutes in 1 hour, so do 60 x 41 = 2,460

So it spins 2,460 times per hour.

Hope this helps!

8 0

3 years ago

A triangle with the coordinates X(3, 2), Y(5, -1), and Z(-2, 3) is reflected across both the x- and y-axes. The coordinates afte

nata0808 [166]

Answer:

The coordinates of the reflected triangle are $X'(x,y) = (-3,-2)$ , $Y' (x,y) = (-5,1)$ and $Z'(x,y) = (2,-3)$ .

Step-by-step explanation:

Let be a point $(a,b)\in\mathbb{R}^{2}$ , reflections across x- and y-axes are represented by the following operations:

x-Axis reflection:

$d = d'$

$b - 0 = 0 - b'$

$b' = -b$

y-Axis reflection:

$d = d'$

$a - 0 = 0 - a'$

$a' = -a$

If we know that $X (x,y) = (3,2)$ , $Y(x,y) = (5,-1)$ and $Z (x,y) = (-2, 3)$ , the coordinates after both reflections are, respectively:

$X'(x,y) = (-3,-2)$

$Y' (x,y) = (-5,1)$

$Z'(x,y) = (2,-3)$

The coordinates of the reflected triangle are $X'(x,y) = (-3,-2)$ , $Y' (x,y) = (-5,1)$ and $Z'(x,y) = (2,-3)$ .

8 0

3 years ago

Evaluate the expression 3+ [5(2-3) - 6]

iragen [17]

Answer:

Answer is below

Step-by-step explanation:

3+5(2−3)−6

=3+(5)(−1)−6

=3+−5−6

=3+−11

=−8

So therefore, your answer would be -8

8 0

3 years ago

Read 2 more answers

Please help asap 30 pts

motikmotik

Answer:

20 or D.

Step-by-step explanation:

You simply plug in the values given for a and b:

$4(5)+7(-3)+3(5)-2(-3) = 20-21+15+6=20$

So, your answer is 20.

5 0

4 years ago

Read 2 more answers

The Side-Angle-Side Similarity Postulate states “If the measures of 2 sides of a triangle are proportional to the measures of 2

Alenkinab [10]

True, hope this helps

5 0

3 years ago

Read 2 more answers