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3 years ago

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Mathematics

1 answer:

Kipish [7]3 years ago

4 0

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Step-by-step explanation:

step by step explanation

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The perimeter of a rectangular picture frame is 30 inches. The length of the frame is three less than twice the width. What are

Lera25 [3.4K]

width = 6

length= 3

30-6 = 24/4 = 6

4 0

3 years ago

Find the x and y intercept of -x-4y=16.

GREYUIT [131]

The answer is going too be -4 or you can write it as (0,-4) I think

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3 years ago

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An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 85 and in math 89. The over

frutty [35]

Answer:

She did better on the math exam compared with the other students

Step-by-step explanation:

Hi!

We to calculate how many standard deviations from the mean she scored we need to use the following formulae:

(score - mean)/std

for economics:

(85 - 75)/8 = 10/8 = 1.25

for math:

(89 - 68)/10 = 21/20 = 2.1

Since she scored 1.25 standard deviations higher than the mean in economics and 2.1 standard deviations higher than the mean in mathematics, she did better on the MATH exam

7 0

3 years ago

Determine whether the triangles are similar. if so, write a similarity statement and name the postulate ot theorem you used. if

Gekata [30.6K]

Answer: Explained.

Step-by-step explanation: The explanations are as follows :

(7) Since GF is parallel to JK and FK and GJ are tranversals, so we have

∠GFK = ∠JKH,

∠FGK = ∠KJH (pairs of alternate interior angles) and

∠GKF = ∠JHK (vertically opposite angles).

Therefore, both the triangles are similar by AAA similarity rule.

(8) Here,

$\dfrac{AN}{MP}=1,~\dfrac{AD}{PR}=\dfrac{4}{5}.$

Since the ratio of the corresponding sides are not proportional, so the triangles are not similar.

(9) Here,

$\dfrac{PS}{RS}=\dfrac{SQ}{ST}=\dfrac{PR}{QT}=\dfrac{2}{3}.$

So, the triangles are similar by proportionality rule.

(10) Here,

$\dfrac{RQ}{JK}=\dfrac{11}{16},~\dfrac{PR}{KL}=\dfrac{30}{45}=\dfrac{2}{3},~\dfrac{PQ}{JL}=\dfrac{2}{3}.$

Since all the ratios are not equal, so the triangles are not similar.

(11) Here , no angle of one triangle matches with the angle of the other triangle, so the given triangles are not similar.

(12) Here,

$\dfrac{GH}{AC}=\dfrac{GK}{AB}=\dfrac{KH}{BC}=\dfrac{1}{2}.$

So, the triangles are similar by the proportionality rule.

Hence explained.

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3 years ago

(See picture) Which expression gives the same result as (Picture included)

umka21 [38]

Answer:

Step-by-step explanation:

since 5 is a multiplier it can be placed outside the summation

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3 years ago

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