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Hatshy [7]
2 years ago
14

Find the area of each figure.719-​

Mathematics
1 answer:
Iteru [2.4K]2 years ago
5 0

Answer:

66.5

Step-by-step explanation:

A=b•h/2

A=19•7/2 19•7=133

A=133/2 133/2= 66.5

A=66.5

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Divide 56 in the ratio 5 3
bogdanovich [222]
I don't understand what you need.

But,

5 + 3 = 8

56/8 = 7

7*5 = 35
7*3 = 21

Hope this helps !

Photon
6 0
3 years ago
Read 2 more answers
Sorry i have another question what is the inequality of 8x−8≤−72.
vova2212 [387]

That answer is x≤−8


Inequality:

8x−8≤−72


Step number  1:  You have to Add 8 to both sides.

8x−8+8≤−72+8

8x≤−64



Step number 2: You have to Divide both sides by 8.

8x /8  ≤  −64 / 8


Ur Answer:

x≤−8


Hope this helps :)


7 0
3 years ago
Read 2 more answers
Britany sends between 10 and 20 text messages per day. Each text message costs $0.80. Suppose Britany's cellular bill spans a pe
Dafna11 [192]
Well if its between 10 & 20 take the median which is 15 and multiple it by the about of days which is 56 and you get 840 dollars <span />
3 0
3 years ago
Give a 98% confidence interval for one population mean, given asample of 28 data points with sample mean 30.0 and sample standar
klio [65]

We have a sample of 28 data points. The sample mean is 30.0 and the sample standard deviation is 2.40. The confidence level required is 98%. Then, we calculate α by:

\begin{gathered} 1-\alpha=0.98 \\ \alpha=0.02 \end{gathered}

The confidence interval for the population mean, given the sample mean μ and the sample standard deviation σ, can be calculated as:

CI(\mu)=\lbrack x-Z_{1-\frac{\alpha}{2}}\cdot\frac{\sigma}{\sqrt[]{n}},x+Z_{1-\frac{\alpha}{2}}\cdot\frac{\sigma}{\sqrt[]{n}}\rbrack

Where n is the sample size, and Z is the z-score for 1 - α/2. Using the known values:

CI(\mu)=\lbrack30.0-Z_{0.99}\cdot\frac{2.40}{\sqrt[]{28}},30.0+Z_{0.99}\cdot\frac{2.40}{\sqrt[]{28}}\rbrack

Where (from tables):

Z_{0.99}=2.33

Finally, the interval at 98% confidence level is:

CI(\mu)=\lbrack28.94,31.06\rbrack

4 0
1 year ago
Jim decided to go for a drive in his car. He started out at 0 miles per hour(mph). He then accelerated 20 mph down his street. T
sleet_krkn [62]

Answer:

37 mph

Step-by-step explanation:


if he starts at 0 then goes to 20 then add another 35 which gives you 55mph then he slows down you decrease 11 which is 44 then decrease again 7 gives you 37mph

4 0
3 years ago
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