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3 years ago

(-4)(5)+(-3)(-2) whats is it???

Mathematics

2 answers:

Vlada [557]3 years ago

5 0

Answer:

-14

Step-by-step explanation:

(-4)(5)+(-3)(-2)

=-20+6

=-14

joja [24]3 years ago

3 0

Answer:

-14

Step-by-step explanation:

Remember to follow PEMDAS. First multiply, then add.

Note:

If you multiply two negative numbers, the answer will be positive.

If you multiply one negative & one positive, the answer will be negative.

If you multiply two positive numbers, the answer will be positive.

(-4) * (5) = -20

(-3) * (-2) = 6

Add:

-20 + 6 = -14

-14 is your answer.

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Nuetrik [128]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
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B(\stackrel{x_2}{1}~,~\stackrel{y_2}{2})\qquad \qquad 
% distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
AB=\sqrt{(1-4)^2+(2-5)^2}\implies AB=\sqrt{(-3)^2+(-3)^2}
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2 years ago

Compute 7-9-2+10-4?

alexandr1967 [171]

I believe it would be 2. Since 7-9= -2 then subtract another 2 which equals -4 then add 10 which equals 6 then subtract 4. Which equals 2.

2 is the answer, hope this helps

3 0

3 years ago

which equation is the quadratic variation equation for the relatonship? the variable y varies directly with x^2 and y=36 when x=

svetoff [14.1K]

For this case we have a direct variation of the form:

$y = kx ^ 2$

Where,

<em>k: proportionality constant </em>

We must find the value of k.

For this, we use the following data:

$y = 36\\x = 3$

Therefore, replacing values we have:

$36 = k (3) ^ 2$

Rewriting:

$36 = 9k$

Clearing the value of k we have:

$k = \frac {36} {9}\\k = 4$

Therefore, the direct variation equation is given by:

$y = 4x ^ 2$

Answer:

The quadratic variation equation for the relatonship is:

$y = 4x ^ 2$

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2 years ago

On a scale drawing, the scale factor is 1/12. A plum tree is 7 inches tall on the scale drawing. What is the actual height of th

Sedbober [7]

B. 84

The scale factor is 1/12 which means to get back to the actual height, you would multiply 7x12

7 0

2 years ago

Read 2 more answers

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natima [27]

Answer:

N is a population parameter; the computation using an estimate of N is a statistic.

Step-by-step explanation:

A parameter is a measure of a population. The number of warplanes fielded total is N; this makes it the population. Thus N is a parameter.

A statistics is a measure of a sample. The number computed using an estimate of N would be based on a sample, since it is an estimate of N; this makes it a statistic.

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2 years ago