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2 years ago

See the picture below please help me and thank you.

Mathematics

1 answer:

svetoff [14.1K]2 years ago

6 0

Answer: -1.13

Step-by-step explanation:

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What is (-2)(-5)? Dhdjfhfhhdhd

lbvjy [14]

Answer:

$( - 2)( - 5) \\ - 2 \times - 5 \\ = - 10$

<h2>please mark me brainliest</h2>

6 0

2 years ago

Find x Help ASAP ASAP

Blizzard [7]

the given figure is a rhombus, so it's area =

$\frac{1}{2} \times \: d1 \times d2$

where, d1 and d2 are diagonals of the rhombus,

and since, the diagnonals of rhombus bisects each other, the values of their diagonals are

(2 × x) and (2 × 15) =》2x and 30 respectively,

so, by finding the area using the given diagonals and equating it with the real area, we get :

=》

$\frac{1}{2} \times 2x \times 30 = 300$

=》

$x \times 30 = 300$

=》

$x = \frac{300}{30}$

=》

$x = 10$

so,

value of x = 10 units

4 0

3 years ago

Suppose the population of a town is 15,200 and is growing 2% each year. Write an equation to model the population growth. Predic

larisa [96]

For this case, what you need to know is that to model this problem, you must use equations of the potential type:
y = A * (b) ^ t
Where:
A: initial population.
b: growth rate.
t: time.
Substituting values we have:
y = 15200 * (1.02) ^ t
After 10 years we have:
y = 15200 * (1.02) ^ 10
y = 18529
Answer:
An equation to model of the population growth is:
y = 15,200 ∙ 1.02 ^ x
the population after 10 years is:
about 18,529

5 0

2 years ago

Write the ratio in simplest form 3:9

horsena [70]

The ratio 3:9 can also be written as a fraction 3/9.
Divide the numerator and denominator by 3 to get 1/3.

3:9 = 1:3

4 0

3 years ago

Read 2 more answers

Xcel energy uses the equation c (x) =7.1+23logx to determine the cost of electricity for x hours. A. What would the function c^-

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

Note that the cost function is $c(x) = 7.1+23\ln(x)$ , which gives us the cost of electricity for x hours of consumption

a). The function $c^{-1}(x)[tex] which is the inverse function, tells us given a cost, the amount of hours we can consume electricty. b) Consider the equation [tex]y=7.1+23\ln(x)$

To find out the inverse function, we interchange the labels of x and y and solve for y, that is

$x = 7.1+23\ln(y)$

when solved for y we have

$e^{\frac{x-7.1}{23}}= y$

So the inverse function is given by $c^{-1}(x) = e^{\frac{x-7.1}{23}}$ .

c) We will use the inverse function to find the amount of hours the customer can use eelectricity. It is simple obtained by evaluating the inverse function at the desired cost (i.e $c^{-1}(15)$ )

that is

$e^{\frac{15-7.1}{23}} = 1.409$

that is, the custome can consume at most 1.41 hours of electricity.

7 0

2 years ago

Read 2 more answers