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AleksandrR [38]
2 years ago
6

+(5)-(10)+(5)-6+10=????

Mathematics
2 answers:
valentina_108 [34]2 years ago
5 0

Answer:

4

Step-by-step explanation:

Go by PEMDAS , Do all the +'s then the take aways. 15+5-16

Ronch [10]2 years ago
4 0

Answer:

4

Step-by-step explanation:

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Answer:

of what?

Step-by-step explanation:

3 0
3 years ago
A box with a square base and no top is to be made from a square piece of carboard by cutting 4 in. squares from each corner and
Lunna [17]

Answer:

C=27inch\ by\ 27inch

Step-by-step explanation:

Squares h=4inch

Volume v=1444in^3

Generally the equation for Volume of box is mathematically given by

 V=l^2h

 1444=l^2*4

 l^2=361

 l=19in

Since

Length of cardboard is

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 l_c=27in

Therefore

Dimensions of the piece of cardboard is

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7 0
2 years ago
A researcher at the University of Washington medical school believes that energy drink consumption may increase heart rate. Supp
Nana76 [90]

Answer:

Step-by-step explanation:

Given that:

mean μ = 70

sample size = 25

sample mean = 73

standard deviation = 7

level of significance = 0.10

The null hypothesis and the alternative hypothesis can be computed as follows:

\mathtt{H_o : \mu = 70} \\ \\  \mathtt{H_1 : \mu > 70 }

The z score for this statistics can be calculated by using the formula:

z = \dfrac{X- \mu}{\dfrac{\sigma}{\sqrt{n}}}

z = \dfrac{73- 70}{\dfrac{7}{\sqrt{25}}}

z = \dfrac{3}{\dfrac{7}{5}}

z = \dfrac{3 \times 5}{{7}{}}

z = 2.143

At level of significance of 0.10

degree of freedom = n -1

degree of freedom = 25 - 1

degree of freedom = 24

The p - value from the z score at   level of significance of 0.10 and degree of freedom of 24 is:

P - value = 1 - (Z < 2.143)

P - value =  1 - 0.9839

P - value =  0.0161

Decision Rule: since P value is lesser than the level of significance, we reject the null hypothesis.

Conclusion: We conclude that energy drink consumption increases heart rate.

5 0
3 years ago
a basketball court measures 94 feet in length and w feet in width. it's perimeter is 288 feet. which value of w makes the equati
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It is 50 a im hoping it is
5 0
3 years ago
An equation is shown below:
babymother [125]

Answer:

x=1

Step-by-step explanation:

5(2x - 8) + 15 = -15

Distribute

10x -40 +15  = -15

Combine like terms

10x -25 = -15

Add 25 to each side

10x -25+25 = -15+25

10x =10

Divide by 10

10x/10 = 10/10

x=1

8 0
2 years ago
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