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3 years ago

PLEASE HELP!!!!! Last question

Mathematics

2 answers:

Olin [163]3 years ago

8 0

Answer:

103

Step-by-step explanation:

To solve this you first have to find the complement to he 110 degree angle (z). You do this by subtracting 180-110 to get z=70 degrees. Next, because its a four sided figure you know the total angle sum should equal 360. Therefore, 360-100-87-70=angle y. Angle y= 103 degrees. Hope this helps

Sunny_sXe [5.5K]3 years ago

5 0

Answer: 103

Step-by-step explanation:

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Sasha and Mona practiced swimming every day. They increased the number of minutes of swimming every week as described below: Sas

Lemur [1.5K]

I think Sasha's number increased by a fixed number and Mona's increased in a fixed number (by the way my mom's name is mona)

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3 years ago

Solve the system using submsitution<br> x+y=-10<br> y=5x+2

Nitella [24]

Answer:

x+y= -10

y=5x+2

solution

x+(5x+2)= -10

x+5x+2= -10

6x+2= -10

6x= -10-2

6x= -12

6x/6= -12/6

x= -2

while y=5x+2

y= 5(-2)+2

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3 years ago

Helpppppppppppp plzzzzzzzzzzzzzzzzzzz

ZanzabumX [31]

Answer:

Step-by-step explanation:

$\left[\begin{array}{ccc}7&31\\142&19\end{array}\right]$ = 7(19) - 142(31) = <em>- 4269</em>

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$\left[\begin{array}{ccc}9.07&6.02&2.01\\-30.7&2.5&3.5\\3.55&-1.1&2.35\end{array}\right]$ = 9.07(2.5)(2.35) + 6.02(3.5)(3.55) + 2.01(- 30.7)(- 1.1) - 2.01(2.5)(3.55) - 9.07(3.5)(- 1.1) - 6.02(- 30.7)(2.35) = <em>647.3561</em>

4 0

3 years ago

How many times does the 8 fit into the 49

Vlada [557]

Answer:

6.125

Step-by-step explanation:

49 divided by 8

49÷8=6.125

4 0

3 years ago

Read 2 more answers

Mrs. Daly's reading classes were surveyed about their reading preferences. The data is summarized in the table below.

andriy [413]

Answer:

Required probability is 0.19

Step-by-step explanation:

The two-way table for the given data is,

Fiction Non-Fiction Total

9th grade 35 8 43

10th grade 52 12 64

Total 87 20 107

It is required to find the probability of the students who prefer to read non-fiction novels, given that they are in 9th grade.

That is, to find the conditional probability $P(Non-fiction| 9th\ grade)$ .

Now, $P(A|B)=\dfrac{P(A\bigcap B)}{P(B)}$

So, we get,

$P(Non-fiction| 9th\ grade)=\dfrac{(Non-fiction\bigcap 9th\ grade)}{P(9th\ grade)}\\\\P(Non-fiction| 9th\ grade)=\dfrac{8}{43}\\\\P(Non-fiction| 9th\ grade)=0.19$

<h3>Thus, the required probability is 0.19.</h3>

5 0

3 years ago