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3 years ago

10

Write an equation where a number is added to a variable, and a solution is -8.

1 answer:

IRISSAK [1]3 years ago

3 0

Answer:

heres a very simple one: x-18= -8 for x=10

Step-by-step explanation:

it just very simple, if you don't have any other choice.

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Oneta writes an algebraic expression with three terms. The y-term has a coefficient of -3, and the x-term has a coefficient of 1

Snowcat [4.5K]

Answer:

x - 3y + z

Step-by-step explanation:

Terms are just names for objects inside the equation -- anything that isn't an operation. A coefficient the is the number a given term (variable) is being mulitpled by. In this case, -3 for y, and 1 for. x. We can deduce from this the start of the expression (x has no coeff. bc of multiplicative identity)

x - 3y

We know we are missing one term, and we also know that the third term cannot be constant, so it must be another variable. In this case I have chosen Z, in theory it shouldn't really matter but z is the best variable name in this case.

5 0

3 years ago

Sara puts $4,000 into an investment yielding 5% annual simple interest; she left the money in for five years and 6 months. How m

aleksandr82 [10.1K]

Answer: $\$1100$

Step-by-step explanation:

Given

Principal amount is $P=\$4000$

Rate of interest $R=5\%$

Time period $T=5\ yr\ \text{and}\ \text{6 months}\equiv 5.5\ yr$

We know, Simple interest is

$\Rightarrow S.I.=\dfrac{P\times R\times T}{100}$

Putting values

$\Rightarrow S.I.=\dfrac{4000\times 5\times 5.5}{100}=\$1100$

Sara gets $\$1100$ after 5 years and 6 months

4 0

3 years ago

Which number is less than 130.29?

sergeinik [125]

The correct answer is B. 130,099.

Hope this helps!

8 0

4 years ago

Read 2 more answers

7. f(x) = Square root of quantity x plus nine. ; g(x) = 8x - 13 Find f(g(x)). (1 point) f(g(x)) = 2 Square root of quantity two

AlladinOne [14]

Answer:

f(g(x)) =

$\sqrt{8x \: - \: 13} \: + \: 9$

Step-by-step explanation:

f(x) =

$\sqrt{x} \: + \: 9$

g(x) = 8x - 13

f(g(x) =

$\sqrt{8x \: - 13} \: + \: 9$

5 0

3 years ago

Which function represents a reflection of f(x) = Three-sevenths(2)x over the x-axis?

uranmaximum [27]

<u>Given:</u>

The given function is $f(x)=\frac{3}{7}(2)^{x}$

We need to determine the reflection of f(x) over the x - axis

<u>Reflection over x - axis:</u>

The translation rule to reflect over the x - axis is given by

$(x, y) \rightarrow(x,-y)$

Thus, applying the rule, the function becomes

$-y=\frac{3}{7}(2)^{x}$

Multiplying both sides of the equation by -1, we have;

$y=-\frac{3}{7}(2)^{x}$

This can be written as

$g(x)=-\frac{3}{7}(2)^{x}$

Hence, the reflection of the function over the x - axis is $g(x)=-\frac{3}{7}(2)^{x}$

Thus, Option A is the correct answer.

4 0

3 years ago

Read 2 more answers