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shepuryov [24]
3 years ago
7

I don't get number 13 help please

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
3 0
(x-10)+(x+2)=90
2x-8=90
2x=98
x=49

angle E is 39 and angle F is 52
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Helppppp please. I’m so bad at thus
brilliants [131]
So you need to solve for the x and y values...I personally would use a graph. The is this website called desmos, it can help you with this kind of problem. You can see that the green point which is (10, 44) is on the line.. Lets check our work...

y = 4x + 4
44 = 4(10) + 4
44 = 40 + 4 
44 = 44
This is your answer. I hope this helps love! :)

4 0
3 years ago
Which expression is equivalent to 6m+(m-2)(m+7)+3
Vika [28.1K]

Answer:

m^{2} + 11m - 11

Step-by-step explanation:

6m+(m-2)(m+7)+3  =   6m   +  [ m*m - 14 -2m + 7m]  + 3

=  6m  + mm - 14 + 5m  + 3

=  mm + 11m - 11

6m+(m-2)(m+7)+3   = m^{2} + 11m - 11

5 0
4 years ago
Which expression is equivalent to startfraction m minus 4 over m 4 endfraction divided by (m 2) ?
sertanlavr [38]

Rational functions are written as fractions. The expression equivalent to \frac{\dfrac{m-4}{m+4} }{m+2} is \frac{m-4}{m^2+6m+8}

<h3>Rational functions</h3>

Given the rational function expressed as:

\frac{\dfrac{m-4}{m+4} }{m+2}

This can be further expressed as:

\frac{m-4}{(m+4(m+2)}


Factorize the denominator to have;

\frac{m-4}{m^2+4m+2m+8}\\ \frac{m-4}{m^2+6m+8}

Hence the expression equivalent to \frac{\dfrac{m-4}{m+4} }{m+2} is \frac{m-4}{m^2+6m+8}

Learn more on rational function here: brainly.com/question/1917026

#SPJ4


4 0
2 years ago
Can you help me with this? I’ll mark brainliest
koban [17]

Answer:

Step-by-step explanation:

The step you need next is RQ = RQ.

When I learned this stuff, saying that RQ = RQ is the reflexive property.

Now you have

RP = RS                 Given

<PRQ = <SRQ       The result of a bisected angle.

RQ = RQ                A line is always equal to itself.

So the triangles are congruent. The rest follows as stated.

3 0
4 years ago
Randy's average grade is 89 with a standard deviation of 3. His grades follow a normal distribution.
Shtirlitz [24]

Answer:

0.9545

Step-by-step explanation:

To calculate the probability, we need to get the standard score or z-score of each of the scores.

Mathematically;

z-score = (x-mean)/SD

mean = 89 and SD(standard deviation) = 3

for 83, the z-score = (83-89)/3 = -6/3 = -2

for 95, the z-score = (95-89)/3 = 6/3 = 2

The probability we are to calculate has the following range;

P(-2<z<2)

we use the standard score table to estimate this;

= P(z<2) - P(z<-2)

P(z<2) = 0.97725

P(z<-2) = 0.02275

Plugging these values into the equation, we have ;

P(-2<z<2) = 0.97725 - 0.02275 = 0.9545

3 0
3 years ago
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