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dimaraw [331]
3 years ago
8

2 x— = ———7 z + 10x = ???​

Mathematics
1 answer:
zysi [14]3 years ago
7 0

Answer:

28

Step-by-step explanation:

2x-3y+z=-3 , x-5y+7z=-11 , -10x+4y-6z=28

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The probability of choosing an apple-flavored juice box out of the refrigerator without looking is one. which term best scribes
Lunna [17]

Answer:

Certain

Step-by-step explanation:

The term probability describes the number chance that an event will happen.

The value of probability is 1 when an event is certain to happen.

An event that cannot possibly happen has a probability of 0.

The probability is between 0 and 1. If there is a chance that an event will happen.

4 0
3 years ago
For every blue strip you have, you need two yellow strips. You have 12 blue strips. How many yellow strips do you need ?
Katen [24]

Answer:

24 yellow strips

Step-by-step explanation:

since you need two yellow for every blue, you need to double the total of blue to get the number of yellow that are needed.

7 0
3 years ago
Read 2 more answers
Please I need step by step answer. facyorise a2+8a+15​
Papessa [141]
I have no idea what it is but I need to answer somthing so... ;-;
4 0
3 years ago
Read 2 more answers
A box contains 14 large marbles and 10 small marbles. Each marble is either green or white 8 of the large marbles are green, and
netineya [11]

The probability that the marble is large or white is 0.5714.

<h3>What is probability?</h3>

Probability is the branch of mathematics that studies the possible outcomes of given events together with the outcomes' relative likelihoods and distributions.

Probability of an event is

P(A) = Number of favorable outcomes/ Total Number of outcomes      

       = n(A)/n(S)

where

P(A) is the probability of an event “A”

n(A) is the number of favorable outcomes

n(S) is the total number of events in the sample space.

We have,

Number of large marbles = 14

Number of small marbles = 10

Number of large green marbles = 8 which implies

Number of large white marbles = 14 - 8 = 6

Number of small white marbles = 4 which implies

Number of small green marbles = 10 - 4 = 6.

Now, let

Let X be the event of drawing large marble.

Let Y be the event of drawing small marble.

Let M be the event of drawing white marbles.

Let N be the event of drawing green marbles.

Since only one marble is drawn at a time ,

so P(X) =  14/24

    P(Y) = 10/24

    P(M) = 10/24

    P(N) = 14/24

We have to find the probability that a marble is large or white i.e. P(X∪M).

P(X∪M) = P(X) + P(Y) - P(X∩M)

P(X∩M) = In 14 large marbles 6 are white marbles = 6/14.

P(X∪M) = P(X) + P(Y) - P(X∩M) = 14/24 + 10/24 - 6/14 = 0.5833+0.4167-0.4286 = 0.5714.

Therefore, the probability of drawing large or white marble is 0.5714.

To know more about probability, visit

brainly.com/question/19169117

#SPJ4

3 0
1 year ago
An independent-samples t test was conducted to compare high-altitude exercise to exercise at sea-level. Imagine the mean comfort
insens350 [35]

Answer:

-2.03, 2.03

Step-by-step explanation:

The degree of freedom (df) ;

Df total for the two samples = 35

Therefore, obtuaking the critical value using a T-test distribution at 95% confidence level.

(1 - 95%) / 2 = (1 - 0.95) / 2 = 0.05 / 2 = 0.025

Using a T critical value calculator or t table distribution ;

Tcritical, 0.025, df = 35 = 2.03

Left tail = - 2.03

Right = 2.03

Hence, critical cutoff :

(-2.03 ; 2.03)

7 0
3 years ago
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