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3 years ago

Multiply 13.4x0.05x1.8=

Mathematics

1 answer:

jek_recluse [69]3 years ago

3 0

13.4 x 0.05 = 0.67

0.67 x 1.8 = 1.206

So the answer if 1.206

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164 is 55% of what number? Please somebody help me

monitta

This is how you solve it; but first of all convert the percent into a decimal;55%= 0.55

0.55x = 164 (divide by 0.55 on both sides)
x = 164/0.55
x = 298.18 (rounded to the nearest hundredth)
so 164 is 55% of 298.18(rounded)

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3 years ago

If a data value in a normal distribution has a negative z-score, which of the following must be true?

Tamiku [17]

The data value must be less than the mean.

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3 years ago

Read 2 more answers

Triangle ABC has AB=5, BC=7, and AC=9. D is on AC with BD=5. Find the length of DC

e-lub [12.9K]

Answer:

$DC=\frac{8}{3}\ units$

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The triangle ABD is an isosceles triangle

because

AB=BD

The segment BM is a perpendicular bisector segment AD

In the right triangle ABM

Applying the Pythagorean Theorem

$BM^2=AB^2-AM^2$

we have

$AB=5\ units\\AM=x\ units$

substitute

$BM^2=5^2-x^2$

$BM^2=25-x^2$ -----> equation A

In the right triangle BMC

Applying the Pythagorean Theorem

$BM^2=BC^2-MC^2$

we have

$BC=7\ units\\MC=AC-AM=(9-x)\ units$

substitute

$BM^2=7^2-(9-x)^2$

$BM^2=49-(81-18x+x^2)$

$BM^2=49-81+18x-x^2$

$BM^2=-x^2+18x-32$ ----> equation B

equate equation A and equation B

$-x^2+18x-32=25-x^2$

solve for x

$18x=25+32\\18x=57\\\\x=\frac{57}{18}$

Simplify

$x=\frac{19}{6}$

Find the length of DC

$DC=AC-2x$

substitute the given values

$DC=9-2(\frac{19}{6})$

$DC=9-\frac{19}{3}\\\\DC=\frac{8}{3}\ units$

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3 years ago

Select all that justify the following statement. 2 • = 1

Dvinal [7]

Try using negative numbers

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3 years ago

A toy factory can produce approximately 36,000 building blocks in just one minute! The function B(t)=36,000t approximates the to

gogolik [260]

Answer:

all real numbers greater than or equal to 0

Step-by-step explanation:

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2 years ago