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lapo4ka [179]
3 years ago
11

Evaluate the expression described below if the number is 4. the difference between a number squared and the number.

Mathematics
2 answers:
elena55 [62]3 years ago
5 0
A. -4
b. 0
c. +8
d. +16
vitfil [10]3 years ago
4 0

Answer:

C) 12.

Step-by-step explanation:

Given  : if the number is 4. the difference between a number squared and the number.

To find : Evaluate the expression described below.

Solution : We have given

Number = 4 .

According to question :

difference between a number squared and the number.

Number squared = (4)².

Number =  4

Then Difference =  (4)²  - 4.

Difference =  16 - 4.

Difference =  12.

Therefore, C) 12.

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The closest temperature to zero during the week is -0.5 °F because it's absolute value, 0.5, is smaller than the other numbers.

The farthest temperature from zero during the week is 5 °F because it's absolute value, 5, is the highest out of all the other numbers.

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The warmest temperature would be 5 °F, because it is the farthest number on the right side of zero on the number line.

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The quadratic function f(x) has a turning point at (-3,6). the quadratic y=2/3f(x)+3 would have a turning point of
NARA [144]

Answer:

C. (-3,11)

Step-by-step explanation:

Tp is (-3,6) implies the quadratic could have been

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(2/3)f(x) = (2/3)[(x+3)²+6]

= (2/3)(x+3)²+4

(2/3)f(x)+3 = (2/3)(x+3)²+4+3

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No change in domain so x remains-3

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Joshua is 1.45 meters tall. At 2 p.m., he measures the length of a tree's shadow to be 31.65 meters. He stands 26.2 meters away
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Answer:

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Step-by-step explanation:

We are given that

Height of Joshua, h=1.45 m

Length of tree's shadow, L=31.65 m

Distance between tree and Joshua=26.2 m

We have to find the height of the tree.

BC=26.2 m

BD=31.65m

CD=BD-BC

CD=31.65-26.2=5.45 m

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All right triangles are similar .When two triangles are similar then the ratio of their corresponding sides are equal.

\triangle ABD\sim \triangle ECD

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