MATHEMATICS MIDDLE SCHOOL

Anyone please help me?

Answers

Answer 1

Answer:

Hi!

This is an equilateral triangle. Meaning all sides equal the same.

A triangle's angles add up to 180.

60+60+60=180

Angle 2=60 degrees

-Seth

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multiply or divide and then simplify (x+1)^2/(x-5)*(x-3)/(x+1)3x+3/2 divided by 4/9x+94a/3a-3*3(a-1)/16ax+2/x-1 divided by 5x+10/x-2
ASAP, pls I need help with these questions
Isabella and Sophia share a reward of $60 in a ratio of 2 : 3. What fraction of the total reward does Isabella get?
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Approximate the real zeros of f(x)=2x^4-x^3+x-2 to the nearest tenth. a. , 1 c. 0, 1 b. , d. , 0 Please select the best answer from the choices provided

Answers

ANSWER

-1.0, 1.0

EXPLANATION

The given polynomial function is

$f(x) = 2 {x}^(4) - {x}^(3) + x - 2$

According to the Rational Roots Theorem, the possible roots of this function are;

$\pm1,\pm (1)/(2)$

We now use the Remainnder Theorem to obtain;

$f(1) = 2 {(1)}^(4) - {(1)}^(3) + 1 - 2$

$f(1) = 2 - 1+ 1 - 2 = 0$

$f( - 1) = 2 {( - 1)}^(4) - {( - 1)}^(3) - 1 - 2$

$f( - 1) = 2 + 1 - 1 - 2 = 0$

But;

$f( (1)/(2) ) = - 1.5$

$f( - (1)/(2) ) = - 2.25$

Since f(1)=0 and f(-1)=0, the real zeros to the nearest tenth are:

-1.0 and 1.0

Answer:

Step-by-step explanation:

Just took the test

Rina drove for 1 hour at 45 mph and 1.5 hours at 50 mph. What was her average speed for the trip?

Answers

Answer:

Her average speed for the trip was 48 mph.

Step-by-step explanation:

Rina drove 1 hour at the speed = 45 mph

Distance covered in 1 hour = 45 miles

she drove 1.5 hours at the speed = 50 mph

Distance covered in 1.5 hour = 50 × 1.5 = 75 miles

Total distance covered by Rina = 45 + 75 = 120 miles

Total time taken by Rina = 1 + 1.5 = 2.5 hours

Average speed = Total distance / Total time

= 120 ÷ 2.5 = 48 mph

Her average speed for the trip was 48 mph.

1hour at 45mph , total distance = 45miles
1.5hours at 50kmph , total distance= 50 × 1.5 = 75miles

total distance tracaled = 120mls
total time = 2.5 hours

$(miles)/(hour) = (120)/(2.5) = 48mph$

Figure TUVW ≌ figure ABCD, UV = 9, WT = 17, and TU = 13.What is the measure of AB? Please this is my last question then I have no more points.

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Answers

that symbol means congruent which means they are the so tu=ab
this means ab=13

$TUVW \cong ABCD \Rightarrow \overline{AB}=\overline{TU}=13$

The measure of an angle is three more then twice its supplement. What is the measure of the angle?

Answers

Answer:

121 degrees.

Step-by-step explanation:

If the angle is x degrees then its supplement is 180-x degrees.

So we have the equation:

x = 2(180-x) + 3

x = 360 - 2x + 3

3x = 363

x = 121.

Solve the system of equations and choose the correct answer from the list of options. (4 points)x − y = 7
y = 3x + 12

Select one:
a. 2 /19 comma 2 / 33
b. negative 2 / 19 comma negative 33 / 2
c. negative 19 / 2 comma negative 33 / 2
d. 19 / 2 comma 33 / 2

Answers

Answer:

c. negative 19 / 2 , negative 33 / 2

Step-by-step explanation:

x − y = 7

y = 3x + 12

Substitute y = 3x + 12 into x − y = 7

x − (3x + 12) = 7

x - 3x - 12 = 7

-2x - 12 = 7

-2x = 19

x = -19/2

Substitute x = -5/2 into x − y = 7

-19/2 − y = 7

y = -19/2 - 7

y = - 5/2 - 14/2

y = -33/2

Answer:

x = -19/2, y = -33/2

Find the y-intercept of y=4(1/3)^x+1+2

Answers

y intercept is where the line crosses the y axis, that only happens when x=0
so set x=0 and find what y intercet is

y=4(1/3)^0+1+2
y=4(1)+1+2
y=4+1+2
y=5+2
y=7

y intercept is y=7 aka the point (0,7)

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A van is traveling 1.5 kilometers per minute. Approximately how fast is the van traveling in miles per hour?