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3 years ago

Evaluate the expression for u = –8 and v = 2. uv − u

Mathematics

2 answers:

sp2606 [1]3 years ago

4 0

Answer:

- 8

Step-by-step explanation:

- 8 × 2 - (- 8)

- 8 × 2 + 8

- 16 + 8

- 8

gtnhenbr [62]3 years ago

4 0

Answer:

-8 i think

Step-by-step explanation:

-8 * 2 + 8

-16 + 8

-8

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Alex73 [517]

Answer:

(0,5/2)

Step-by-step explanation:

(-4 , 8) ; (4 , -3)

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3 years ago

What is the value of e^ln7 x1 7e 7x 7

sweet-ann [11.9K]

Answer:

Both answer shown

IF it is

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IF it is

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Step-by-step explanation:

Given: Little confusion is in the question

e^ln7 x1

i.e $e^{ln 7x}$

To Find:

$e^{ln 7x}= ?$

Solution:

We know Logarithmic identity as

$\ln e = 1$

$\ln e^{x} = x$

Similarly,

$e^{\ln x}=x$

IF it is

$e^{ln 7x}= 7x$

IF it is

$e^{ln 7}\times 1}=7\times 1=7$

3 0

3 years ago

Read 2 more answers

Liz and Sara are making cookies for a bake sale. The graph shows the number of cookies that Liz bakes during a 5-hour period.

Radda [10]

Statements

case A) Sara had baked more cookies at the start of the $5$ hours than Liz

The statement is True

we know that

At the start of the $5$ hours Liz has baked $220$ cookies-----> see the graph

Find the number of cookies that Sara has baked for $x=5$ hours

$y=45x+38$

$y=45*5+38=263$

$263 > 220$

therefore

Sara had baked more cookies at the start of the $5$ hours than Liz

case B) Sara bakes $45$ cookies each hour

The statement is True

we know that

The number of cookies baked each hour is equal to the slope of the linear equation

The linear equation is

$y=45x+38$

The slope is $m=45\frac{cookies}{hour}$

case C) Liz bakes $19$ cookies each hour

The statement is false

Find the slope of the Liz graph

The slope is equal to

$m=\frac{y2-y1}{x2-x1}$

Let

$A(0,19)\ B(4,179)$

Substitute the values

$m=\frac{179-19}{4-0}$

$m=40\frac{cookies}{hour}$

case D) Liz bakes more cookies each hour than Sara

The statement is False

Sara bakes $45$ cookies each hour

Liz bakes $40$ cookies each hour

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