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3 years ago

Very easy question no kidding

Mathematics

2 answers:

Akimi4 [234]3 years ago

7 0

-33 - 20 = -53

----------------------

NeTakaya3 years ago

7 0

-c-p =?

If c=-33 an p=20 we have

-(-33) - 20 = +33 - 20 = 13

-c-p=13

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A helpful hand please

Tpy6a [65]

$\bf s=\sqrt{2gh}\quad 
\begin{cases}
s=speed\\
g=gravity\\
h=height\\
-----\\
s=34\\
g=32
\end{cases}\implies s^2=2gh\\\\\\ \cfrac{s^2}{2g}=h\implies \cfrac{34^2}{2\cdot 32}=h$

3 0

4 years ago

A and B are supplementary angles. If A = 7x - 18 and B = 8x + 3, find x.

Mila [183]

Answer:

x=13

Step-by-step explanation:

Angle A and angle B are supplementary

Supplementary angles add to 180 degrees

<A + <B = 180

7x-18 + 8x+3 = 180

Combine like terms

15x -15 = 180

Add 15 to each side

15x-15 +15 = 180+15

15x = 195

Divide by 15

15x/15 =195/15

x =13

3 0

3 years ago

If point A is reflected over the y -axis and it’s original location was (2,3), were is it’s new location

lutik1710 [3]

Answer:

(-2, 3)

Step-by-step explanation:

you take the opposite of the x-axis if flipped to the y-axis

4 0

3 years ago

The cost of a set of DVDs after a 35% mark up can be represented by the expression b + 0.35b. Simplify the expression.

Anika [276]

Answer:

35%/5 = 7 b=7 7 + 35x7= 966 / 21 = 46

Step-by-step explanation:

4 0

3 years ago

Hugo averages 58 words per minute on a typing test with a standard deviation of 11 words per minute. Suppose Hugo's words per mi

Black_prince [1.1K]

Answer:

The number of words that Hugo wrote in the test of Wednesday (74) is at a distance of 1.4545 standard deviations (11) to the right of his mean (58)

Step-by-step explanation:

A normal random variable with mean Mu = 58 and standard deviation sd = 11 is standardized with the transformation (z-score):

Z = (X - Mu) / sd = (X - 58) / 11

For a value of 74 for X, Z = (74 - 58) / 11 = 1.4545 > 0.

The z-score when X = 74 is 1.4545 > 0

This means that the number of words that Hugo wrote in the test of Wednesday (74) is at a distance of 1.4545 standard deviations (11) to the right of his average (58)

6 0

3 years ago