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2 years ago

Giovanna has a score of

Mathematics

1 answer:

12345 [234]2 years ago

7 0

Answer:'

-9.7 minus, in 13

Step-by-step explanation:

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Vikentia [17]

Answer:

(Please vote me Brainliest if this helped!)

Letter A

Step-by-step explanation:

Pythagorean Triples $c^2=a^2+b^2$

A) Not a Pythagorean Triple

$40^2=12^2+35^2$ : 1,600 ≠ 144 + 1,225

B) Pythagorean Triple

$53^{2} = 28^{2} + 45^{2} :$ 2,809 = 784 + 2,025

C) Pythagorean Triple

$65^2= 33^2+56^2$ : 4,225 = 1,089 + 3,136

D) Pythagorean Triple

$85^{2} = 36^{2} + 77^{2}$ : 7,225 = 1,296 + 5,929

3 0

3 years ago

Read 2 more answers

Evaluate this expression if x = -4, y = 5, and z = -13.<br><br> x - (-z)

LiRa [457]

Answer:

-17

Step-by-step explanation:

x - (-z)

Subtracting a negative is like adding

x+z

x = -4 and z = -13

-4 + -13

-17

8 0

3 years ago

Read 2 more answers

if a piece of string which is 368cm long must be cut into 8 equal pieces how long will each piece be (answer in mm)

Maksim231197 [3]

1cm= 10mm
So you do 368 divided by 80 which is 4.6mm

3 0

2 years ago

Is the airplanes altitude a function of time

Natali5045456 [20]

Answer:

yes because any input of time results in only one output of altitude

yes because the airplane increases and decreases in altitude at the same rate

pick either one :>

3 0

2 years ago

For what value of “a”are the graphs of 5y = -2x + 10 and 3y = aX- 15 parallel

Pie

Answer:

a = -6/5

Step-by-step explanation:

For the graphs to be parallel the graphs should have same slope(m)

So we rewrite both our equations in the slope-intercept form then compare the slope to find the value of a like this,

$y=mx+b$

This equation is the slope-intercept form we convert both our equations in this form firstly taking equation 1

$5y=-2x+10\\\\y=\frac{-2x+10}{5} \\\\y=\frac{-2}{5}x+\frac{10}{5} \\\\y=\frac{-2}{5}x+2$

so if we compare it with y = mx + b the coefficient of x is m and hence

m= -2/5 now solving for equation 2

$3y=ax-15\\\\y=\frac{ax-15}{3} \\\\y=\frac{ax}{3}-\frac{15}{3} \\\\y=\frac{a}{3}x-5\\\\$

so here if we compare it with y = mx + b the coeffienct of x is a/3 so since parallel lines have same slope by the formula:

$m_1=m_2$

we equation both the slope to each other to find the value of a like this,

$m_1=m_2\\\\\frac{-2}{5}=\frac{a}{3}\\\\-2(3)=a(5)\\\\-6=5a\\-6/5=a$

so the value of a equals

a= -6/5

8 0

2 years ago