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3 years ago

Item 3 What is the value of the expression? -9/16+9/8=

Mathematics

2 answers:

scZoUnD [109]3 years ago

6 0

Answer:

9/16

Step-by-step explanation:

Elina [12.6K]3 years ago

5 0

9/16 because I used a calculator

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When analyzing three linear functions, Daniel noticed that they all intersected at the point (7, 7). What conclusion can Daniel

liberstina [14]

That it has the highest y-intercept of all of the three linear functions.

(and that the question could be worded better, but don't put that in your answer)

7 0

3 years ago

Plsss help me:((( I really need it now:(((

pochemuha

Step-by-step explanation:

1. y--7=-2(x-0)

y+7=-2x

y=-2x-7

2. y--3=-2(x-1)

y+3=-2x+2

y=-2x+2-3

y=-2x-1

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2 years ago

What will the sign be on the solution to this problem: (-3)(-4)(5)(6)(-7)<br><br> +<br> -

Korvikt [17]

Answer:

Step-by-step explanation:

becuase (-3)(-4) will give you a positive and when you mutipy it with the 5 and 6 you will still get postive but when you multiply with -7, you will get a negitive

4 0

3 years ago

Read 2 more answers

An article in Knee Surgery, Sports Traumatology, Arthroscopy, "Arthroscopic meniscal repair with an absorbable screw: results an

igomit [66]

Answer:

Mean = 1.57

Variance=0.31

Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

1) Both surgeries are successful (X=2).

$P(e_1)=0.90*0.67=0.603$

2) Left knee unsuccessful and right knee successful (X=1).

$P(e_2)=(1-0.9)*0.67=0.1*0.67=0.067$

3) Right knee unsuccessful and left knee successful (X=1).

$P(e_3)=0.90*(1-0.67)=0.9*0.33=0.297$

4) Both surgeries are unsuccessful (X=0).

$P(e_4)=(1-0.90)*(1-0.67)=0.1*0.33=0.033$

Then, the mean can be calculated as the expected value:

$M=\sum p_iX_i=0.603*2+0.067*1+0.297*1+0.033*0\\\\M=1.206+0.067+0.297+0\\\\M=1.57$

The variance can be calculated as:

$V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111$

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3 years ago

For each triangle, find the missing side length to the nearest tenth. :

Lana71 [14]

We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.

3 0

3 years ago