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3 years ago

Solve the system... I will mark you brainliest!!!!!!

Mathematics

1 answer:

Virty [35]3 years ago

5 0

Answer:

(2,4),(−1,1)

Step-by-step explanation:

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Explane why kequally 10 is the consentof proporitomally

Oxana [17]

I don't understand the question, could you please re-word it and if I know it I will give u the answer

5 0

3 years ago

This Venn diagram shows the pizza topping preferences for 9 students. Let event A = The student likes pepperoni. Let event B = T

victus00 [196]

Answer:

$P(A\ or\ B)=\frac{7}{9}$

Step-by-step explanation:

We need to use the formula to calculate the probability of (A or B) where

A=Probability a student likes pepperoni

B=Probability a student likes olive

A and B =Probability a student likes both toppings in a pizza

A or B =Probability a student likes pepperoni or olive (and maybe both), a non-exclusive or

The formula is

$P(A\ or\ B)=P(A)+P(B)-P(A\ and\ B)$

Since 6 students like pepperoni out of 9:

$P(A) = \frac{6}{9}$

Since 4 students like olive out of 9:

$P(B) = \frac{4}{9}$

Since 3 students like both toppings out of 9

$P(A\ and\ B) = \frac{3}{9}$

Then we have

$P(A\ or\ B)=\frac{6}{9}+\frac{4}{9}-\frac{3}{9}$

$P(A\ or\ B)=\frac{7}{9}$

7 0

3 years ago

5. A monument casts a 78 ft. shadow at the same time that a vertical yardstick casts a 4.5 ft. shadow. How high is the monument?

rodikova [14]

Hello,

Using Thalès 's theorem:

Let's h the height of the monument.

$\dfrac{1}{h} =\dfrac{4.5}{78} \\\\h=\dfrac{78}{4.5} =\dfrac{156}{9} \approx{17.3\ (ft)}$

If you don't know what is the Thalès's theorem,

imagine that the similar triangles.

5 0

3 years ago

3/24 simplified fraction

Julli [10]

Answer:

The lowest fraction it can be simplified to is 1/8.

4 0

3 years ago

Read 2 more answers

I need help pls ASAP !!<br> (Extra points)<br><br> & explanation

sergey [27]

Answer:

x = 60

Step-by-step explanation:

Total degrees of all interior angles (the three angles inside the triangle) is always 180°

So u use 180/3 = 60 which is x

4 0

3 years ago