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Digiron [165]
3 years ago
11

Help plzz in 1,2,3 thank u Alott

Mathematics
1 answer:
maria [59]3 years ago
8 0
Go to mathway and type in the problem and it shows you the answer.

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Find profit or loss %<br> A) cp= 150 and profit =250
Anon25 [30]

Answer:

166⅓ %

Step-by-step explanation:

250/150 × 100

500/3 = 166⅓ %

Or 166.67%

7 0
3 years ago
What is the value of f(-4) for the function f(x) = 3/2x-9 ?
oksian1 [2.3K]
F(x) = 3/2x - 9

f(-4) = 3/2(-4) - 9
f(-4) = -6 - 9
f(-4) = -15
7 0
3 years ago
• Expand and simplify the following<br> expressions:<br> • (a + b + 1)(a - b)
Kruka [31]

Answer:

a² + b² + a - b

Step-by-step explanation:

brackets mean multiplying everything by each individual

a² + ba + a - ba - b² - b

simplify buy collecting like terms:

highest values first and +ba mad -ba cancel out

a² + b² + a - b

8 0
3 years ago
The heights of children 2 years old are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches. pe
mariarad [96]
<span>Normal growth is a sign of good health. Monitoring for growth disturbances is fundamental to children's health care. Early detection and diagnosis of the causes of short stature allows management of underlying medical conditions, optimizing attainment of good health and normal adult height. Normal growth is a sign of good health. Monitoring for growth disturbances is fundamental to children's health care. Early detection and diagnosis of the causes of short stature allows management of underlying medical conditions, optimizing attainment of good health and normal adult height. Short stature with decreased weight-for-height ratio may indicate the presence of a chronic systemic disease.</span>
6 0
3 years ago
Read 2 more answers
Which expression can be used to find measure angle R
Novay_Z [31]

Answer:

cos-1(-4/14)

Step-by-step explanation:

If

4.5=r

3.5=s

2=t

By law of cosines:

r^{2}=s^{2}+t^{2}  -2st cosR\\\\CosR= \frac{r^{2} -s^{2} -t^{2} }{-2st}  \\\\R=cos^{-1} (\frac{(4.5)^{2}-3.5^{2} -2^{2}  }{-2(3.5)(2)} )\\R= cos^{-1} (-\frac{4}{14}  )

4 0
3 years ago
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