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aliina [53]
3 years ago
12

Hello i need help with these and if you would like to help more i will be posting multiple questions

Mathematics
1 answer:
8_murik_8 [283]3 years ago
4 0
#1<span> Plug equations 4, 5, 6, and 7 into equation 3
To better combine like terms ... rearange the numbers
combine like terms (y's and constants cancel out)
Divide by 5
Plug this back into equations 5 and 7

#2 </span><span>Apply concepts of density based on area and volume in modeling ... Mathematically proficient students can apply the mathematics they know to solve problems arising in ... In Grade 3, students used modeling to solve real-world problems involving perimeter of polygons.

#3 </span><span>D Ira built his model using cross sections that were cut parallel to the base what shape was each cross section </span>
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ASAP!!! PLEASE help me solve this question! No nonsense answers, and solve with full solutions.
malfutka [58]

Answer:

when two inscribed angles in one circle both equal 75°, the two angles must intercept the same arc that measures 75°.

Step-by-step Explanation:

The relationship between an intercepted arc and an inscribed angle is given as:

the measure of the intercepted arc = twice the inscribed angle that intercepts it.

Also, by virtue of this, when two inscribed angles intercepts the same arc, both inscribed angles are said to be congruent. And the measure of both angles equal the measure of the arc they both intercept.

Therefore, if the measure of an arc, that is intercepted by 2 inscribed angles, is given as 75°, both inscribed angles equal 75° as well. Thus, each of the inscribed angles is half the measure of the intercepted arc.

Therefore, the statement that is true about inscribed angles is: "when two inscribed angles in one circle both equal 75°, the two angles must intercept the same arc that measures 75°."

6 0
3 years ago
Find the probability of landing on an even number when spinning the spinner below.
Mariulka [41]

Answer:

There are 8 numbers.

4 of the numbers are even ( 2, 4, 6, 8)


The probability is the number of even numbers over the total numbers:


4/8 which reduces to 1/2.


The answer is 1/2



3 0
3 years ago
Which statement defines the term markup?
Alekssandra [29.7K]
A. The extra amount added to the selling price to arrive at the cost price
4 0
3 years ago
Read 2 more answers
Find the value of y for given value of x.
Scrat [10]
1.)x+5;x=3
(3) + 5
8


2.)7x;x=-5
7(-5)
35


3.)y=1-2x;x=9
y = 1 - 2(9)
y = 1 - 18
y = -17


4.)y=3x+2;x=0.5
y = 3(0.5) + 2
y = 1.5 + 2
y = 3.5 


5.)y=2x^3;x=3
y = 2(3^3)
y = 2(3)(3)(3)
y = 2(27)
y = 54


<span>6.)y=x/2+9;x=-12
y = (-12)/2 + 9
y = -6 + 9
y = -3</span>
6 0
4 years ago
Use the conversions given below to change 127 cm into feet
svetoff [14.1K]
127/2.54 = 50 inches which equals 4.16 ft
4 0
3 years ago
Read 2 more answers
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