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3 years ago

A formula used in science isv=u + atWork out the value of v when u = 7, a=5 and t = 9

Mathematics

1 answer:

anygoal [31]3 years ago

6 0

Answer:

v = 52

Step-by-step explanation:

v = u + at

v = 7 + (5 ×9)

v = 7 + 45

v = 52

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Which shows the phrase "the product of a number and 3" as a variable expression?

JulijaS [17]

The algebraic expression for the word phrase "the product of a number and 3" as a variable expression is 3z

<h3>How to write an algebraic expression for the word phrase "the product of a number and 3" as a variable expression?</h3>

The word phrase is given as:

"the product of a number and 3"

Represent the number with z

So, the word phrase can be rewritten as:

"the product of a number z and 3"

The product of a number z and 3 is represented as:

z * 3

When evaluated,, the expression becomes

z * 3 = 3z

Hence, the algebraic expression for the word phrase "the product of a number and 3" as a variable expression is 3z

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Licemer1 [7]

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3 years ago

The measure of angle A is 15°, and the length of side

dangina [55]

Answer:

Part 1) $AB=30.9\ units$

Part 2) $AC=29.9\ units$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

$sin(A)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(15^o)=\frac{8}{AB}$

solve for AB

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Part 2

Find the length side AC

we know that

$tan(A)=\frac{BC}{AC}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

$tan(15^o)=\frac{8}{AC}$

solve for AC

$AC=\frac{8}{tan(15^o)}=29.9\ units$

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Step-by-step explanation:

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Step-by-step explanation:

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A formula used in science isv=u + atWork out the value of v when u = 7, a=5 and t = 9​

A formula used in science isv=u + atWork out the value of v when u = 7, a=5 and t = 9