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3 years ago

The areas of two similar figures are 20 cm^2 and 45 cm^2. What is the scale factor of their corresponding sides?

Mathematics

1 answer:

ra1l [238]3 years ago

4 0

Answere areas of twosssss similar figures arddde 20 cm^2 and

Step-by-step explanation:

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What multiplies to 24 and adds to 13

algol13

I don't think that there is a number that can add to 13 exactly, because 12 times 2 is 24 and it equals 14. 3 and 8 equals 11, and 24 and 1 equals 24.

5 0

3 years ago

Identify the x- and y-intercepts of f(x) and the x- and y-intercepts of g(x). f(x) =3x−1;g(x)=2f(x)−4

Tju [1.3M]

F(x)=3x-1

y-intercept:
y=3(0)-1
y=-1

x-intercept:
0=3x-1
1=3x
1/3=x

g(x)=2f(x)-4

y-intercept:
y=2f(0)-4
y=2(-1)-4
y=-6

x-intercept:
0=2f(x)-4
0=2(3x-1)-4
0=6x-2-4
0=6x-6
0=x-1
1=x

Hope I helped :)

6 0

4 years ago

What is the mixed number of 7/2

Alona [7]

Answer:

3 1/2

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

–6m –8 = 24 what is m

GuDViN [60]

Hi there....

-6m - 8 = 24
-6m = 24 + 8
-6m = 32
m = 32/-6
m = -16/3
or if they ask you for decimal, it will be m= -5.33

4 0

3 years ago

A government watchdog association claims that 70% of people in the U.S. agree that the government is inefficient and wasteful. Y

nata0808 [166]

Answer:

Option D) There is sufficient evidence that the true population proportion is not equal to 70%.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1165

p = 70% = 0.7

Alpha, α = 0.02

Number of people who agreed , x = 746

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.7\\H_A: p \neq 0.7$

This is a two-tailed test.

Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{746}{1165} = 0.64$

$z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Putting the values, we get,

$z = \displaystyle\frac{0.64-0.7}{\sqrt{\frac{0.7(1-0.7)}{1165}}} = -4.46$

Now, $z_{critical} \text{ at 0.02 level of significance } = \pm 2.33$

Since,

Since, the calculated z statistic does not lie in the acceptance region, we fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

Thus, there is enough evidence to support the claim that the true proportion differs from 70%.

Option D) There is sufficient evidence that the true population proportion is not equal to 70%.

3 0

3 years ago