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2 years ago

Hey!

Mathematics

1 answer:

sashaice [31]2 years ago

5 0

Answer:

angle y is 64⁰

Step-by-step explanation:

There are 2 ways to solve this.

first,

they are alternate angles

second,

you can solve by

180-64=116 (on a straight line)

180-116=64⁰

I'm not really good at explaining but hope this helps :)

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Solving simultaneous equation a+b=7 a-b=3

Lelu [443]

Answer: a=5 b=2

Step-by-step explanation:

They both satisfy the equation as 5+2=7 and 5-2=3

Hope this helps!

3 0

2 years ago

Find the lengths of the sides of the triangle PQR. P(4, 3, 4), Q(2, 1, 3), R(2, 7, 0) a. |PQ| = b. |QR| = c. |RP| =

Nat2105 [25]

Given :

Three points , P(4, 3, 4), Q(2, 1, 3), R(2, 7, 0) .

To Find :

The length of sides .

Given :

We know , length of two points P(x,y ,z) and Q(a,b,c) is given by :

$L=\sqrt{(x-a)^2+(y-b)^2+(z-c)^2}$

Length of PQ :

$PQ=\sqrt{(4-2)^2+(3-1)^2+(4-3)^2}\\\\PQ=\sqrt{4+4+1}=\sqrt{9}\\\\PQ=3$

Length of QR :

$QR=\sqrt{(2-2)^2+(1-7)^2+(3-0)^2}\\\\QR=\sqrt{0+6^2+3^2}\\\\QR=\sqrt{36+9}\\\\QR=\sqrt{45}\\\\QR=3\sqrt{5}$ :

Length of RP :

$RP=\sqrt{(2-4)^2+(7-3)^2+(0-4)^2}\\\\RP=\sqrt{2^2+4^2+4^2}\\\\RP=\sqrt{4+16+16}\\\\RP=\sqrt{36}\\\\RP=6$

Hence , this is the required solution .

4 0

3 years ago

When solving negative one over eight (x + 35) = −7, what is the correct sequence of operations?

Fantom [35]

The answer is Multiply each side by −8, subtract 35 from each side

 $- \frac{1}{8}(x+35)=-7$

Multiply each side by -8:
 $(-8)(- \frac{1}{8})(x+35)=(-8)(-7) \\ \\ 
1(x + 35) = 56 \\ 
x + 35 = 56$

Subtract 35 from each side:
 $x + 35 -35 = 56-35 \\ \\ 
x + 0 =21 \\ \\ 
x = 21$

7 0

2 years ago

A city received 2 inches of rain each day for 3 days. the meteorologist said that if the rain had been snow , each inch of rain

muminat

30 inch of snow that day

3 0

3 years ago

The mean height of a basketball team is 6 feet with a standard deviation of 0.2 feet. The team's center is 6.9 feet tall. Find

ANTONII [103]

Answer:

z-score = 3.5, Yes, z-score is unusual.

Step-by-step explanation:

7 0

2 years ago