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3 years ago

Can somebody match these for me .

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

8 0

From left to right - (-2,6) (4,1) (-2,5) top (1,-3) bottom (-4,-1) (2,-5)

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Which number does not belong -(10)/(2) -13.4 \sqrt(18) 22.7777

ladessa [460]

Answer:18

Step-by-step explanation:

8 0

4 years ago

The population of a certain species of insects increases exponentially according to the model, P(0) = 952e0.12t where P is the n

NeX [460]

Answer:

A) 952 insects are in the original colony

B) 10494 insects are in the colony after 20 weeks

C) 25 weeks

Explanations:

The model representing the population of the species of insects

$P(t)=952e^{0.12t}$

An exponential growth is of the form:

$P(t)=P_0e^{kt}$

where P₀ is the original population

t is the time taken in weeks

Comparing the two equations:

$P_0=\text{ 952}$

952 insects are in the original colony

B. The number of insects that will be in the colony after 20 weeks

Substituting t = 20 into the function given

$\begin{gathered} P=952e^{0.12(20)} \\ \text{P = }10494 \end{gathered}$

C) If the population, P = 20000

$\begin{gathered} 20000=952e^{0.12t} \\ e^{0.12t}=\text{ }\frac{20000}{952} \\ e^{0.12t}=21.008 \\ 0.12t\text{ = ln(21.008)} \\ 0.12t\text{ = }3.04 \\ t\text{ = }\frac{3.04}{0.12} \\ t\text{ = }25 \end{gathered}$

8 0

1 year ago

The vertices of a triangle are A(4, 1), B(9, 1), C(2, 5). What is the area of this triangle.

kiruha [24]

Hey there!

$\large\boxed{10u^2}$

Formula for the area of a triangle is (1/2)bh.

Base of this triangle is 5, height is 4.

Image attached.

Plug values into the formula:

A = (1/2)(5)(4)

Simplify.

A = (1/2)(20)

A = 10

Area of the triangle is 10 units².

Hope this helps!

6 0

3 years ago

Read 2 more answers

A polling company reported that % of surveyed adults said that Complete parts (a) through (d) below.

SOVA2 [1]

Answer:

a) 376.66

b) Option 2: No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "quite annoying" because a count of people must result in a whole.

c) 377

d) 40.77%

Step-by-step explanation:

a) 37% of 1018 is;

37/100 × 1018 = 376.66

b) Thus, the result in a above is not a whole number. Thus;

No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "quite annoying" because a count of people must result in a whole.

c) from a above a, we got a value of 376.66.

Now the actual number would be preferably an integer. Thus, actual number is approximately 377.

d) percentage of respondents said that cellular phones are not at all harmful = 415/1018 × 100% = 40.77%

8 0

3 years ago

Which of the following ordered pairs is a possible solution to the equation y = -2/3x - 4

Karolina [17]

The ordered pair that is the possible solution for the equation is (-6,0) (0,-4).

<h3>What is the Slope-intercept form of a linear equation?</h3>

The slope-intercept form of a linear equation takes the form y= mx + b.

Here:

Slope = m
b = y-intercept

The function f(x) = y = $\mathbf{-\dfrac{2}{3}x-4}$

$\mathbf{y = -\dfrac{2}{3}x-4}$

The slope (m) = -2/3

The x-intercept is the value of x for which y = 0

x-intercept = (-6,0)

The y-intercept is the value of y for which x = 0

y-intercept = (0,-4)

Learn more about the slope-intercept form of a linear equation here:

brainly.com/question/1884491

#SPJ1

6 0

2 years ago