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loris [4]
3 years ago
12

Which shows -3.72 as a rational number in the form abab?

Mathematics
1 answer:
Helga [31]3 years ago
4 0

Answer:

-3.72 is rational because it ends at the hundredths place

Step-by-step explanation:

Rational. A rational number either terminates at a point or repeats in a pattern forever.

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Nachelle is 1.45 meters tall. At 11 a.m., she measures the length of a tree's shadow to be 23.05 meters. She stands 18.9 meters
GREYUIT [131]

Step-by-step explanation:

this creates 2 similar triangles.

that means all angles are the same. and all the side lengths of one triangle correlate to the corresponding side lengths of the other triangle by the same multiplication factor.

her shadow is 23.05 - 18.9 = 4.15 m long.

the factor between the shadow lengths is then

4.15 × f = 23.05

f = 23.05 / 4.15 = 5.554216867...

the same factor now applies to the relation of the heights :

1.45 × 5.554216867... = 8.053614458... m

rounded the tree is 8.05 m tall.

5 0
2 years ago
Pete borrowed $400 for 1 year. He paid back a total of $440. What was the interest rate per year?
OleMash [197]

I=PRT/100

1. Make R (rate) subject

R/100= I/PT

2. Substitute and calculate

r/100= i/pt

r/100= 40/400 × 1

(<em>4</em><em>0</em><em> </em><em>i</em><em>s</em><em> </em>from 440-400.<em>T</em><em>h</em><em>e</em><em> </em><em>i</em><em>n</em><em>t</em><em>e</em><em>r</em><em>e</em><em>s</em><em>t</em>)

r/100= 0.1

r/100×100= 0.1×100

r=10% (interest rate per year)

To confirm

I=PRT

I= 400×10/100×1

I= $40 (Interest)

5 0
3 years ago
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Svet_ta [14]

See the solution above..☝☝

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6 0
3 years ago
A right triangle has legs that are 11 inches and 13 inches long.What is the area of the triangle?
Citrus2011 [14]
Just use your right angled triangle formula.

A=\frac{ab}{2}

Plug n chug 

A=\frac{11*13}{2}
A=71.5 in^{2}
5 0
3 years ago
The function f(x) = (x - 4)(x-2) is shown.
ella [17]

Answer:

the range for f(x) = (x-4) (x-2) is [-1,∞)

Step-by-step explanation:

all real numbers greater than or equal to -1

4 0
3 years ago
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