Mathematics High School

Will give Brainliest and 50 points question above

Answers

Answer 1

Answer:

12.something units squared

Step-by-step explanation:

Answer 2

Answer:

12.something units squared

Step-by-step explanation:

Related Questions

16) Find the surface area of a square pyramid: square base is 3 centimeters by 3 centimeters and the slant
height is 4.6 centimeters.

Answers

Answer:

73.2 cm

Step-by-step explanation:

area = 2 bases + 4 sides

area = 2× 3×3 + 4× 3×4.6

area = 2×9 + 4×13.8

area = 18 + 55.2

area = 73.2 cm

y=−2x+9 write in standard form

Answers

Answer:

2 x − y = − 9

Step-by-step explanation:

I am not 100% sure but I think this is right.

Answer:

Step-by-step explanation:

2x+y=9

Which relationship between the legs and the hypotenuse of the right triangle is correct?

Answers

Answer:The answer is the option C

Step-by-step explanation:we know that

In a right triangle the Pythagorean Theorem states that

where

c is the hypotenuse (the greater side)

a,b are the legs of the right triangle

in this problem we have

substitute the values

Answer:

15^2 + 16^2= x^2

Step-by-step explanation:

I took the usa test prep test and this is how you calculate it

Gabriella ran several laps around a 1/4-mile track. Then she ran 2 1/2 miles on a trail. In all, she ran 4 miles. Write and solve an equation to find l, the number of laps Gabriella ran.

Answers

9514 1404 393

Answer:

1/4×l +(2 1/2) = 4l = 6

Step-by-step explanation:

For l laps around a 1/4 mile track, the total distance is ...

l×(1/4)

After adding 2 1/2 miles to that, Gabriella's total distance was 4 miles:

l×(1/4) +(2 1/2) = 4 . . . . an equation to find l

We can solve this equation by subtracting 2 1/2, then multiplying by 4.

l×(1/4) = 1 1/2

l = 4(1 1/2)

l = 6

Gabriella ran 6 laps on the track.

Two friends tried to rewrite the expression 12 + 20 using the distributive property. Which friend is correct? Explain.

Ahmad: 6(3+7)

Deena: 4(3+5)

Answers

Answer:

Deena

Step-by-step explanation:

The perimeter of a triangle is 59 cm. The first side is 7 cm shorter than the second side. The third side is 4 cm less than twice the length of the first side. Find length of each side

Answers

Given:

The perimeter of a triangle is 59 cm.

The first side is 7 cm shorter than the second side.

The third side is 4 cm less than twice the length of the first side.

To find:

The length of each side.

Solution:

Let x be the second side.

Then, according to the question,

First side = x-7

Third side = 2(x-7)-4

Perimeter of a triangle is the sum of all of its sides.

[tex](x-7)+x+(2(x-7)-4)=59[/tex]

[tex]x-7+x+2x-14-4=59[/tex]

[tex]4x-25=59[/tex]

Add 25 on both sides.

[tex]4x=59+25[/tex]

[tex]4x=84[/tex]

Divide both sides by 4.

[tex]x=21[/tex]

Now,

First sides =21 - 7=14 cm

Second side = 21 cm

Third side = 2(14)-4 = 24 cm

Therefore, the three sides of triangle are 14 cm, 21 cm and 24 cm respectively.

If there are 3 apples for every 4 oranges, how many apples would you have if you had 20 oranges?

Answers

Answer:

6 Apples

Step-by-step explanation:

There would be six apples and 2 oranges left over.

Hope this Helps!

Answer:

I was kind of confused on this one but is it 15 apples?

Step-by-step explanation:

3, 6, 9, 12, 15

4, 8, 12, 16, 20

I think the answer is 15 apples.

0.409 +0.681
can you add this with the repeating decimals?

Answers

Answer:

Yes, you can and the answer would be 1.09.

Step-by-step explanation:

The answer is 1.09 I believe

Help! I Greatly appreciated it.

Answers

it is proportional

cause it is trust me

Answer: it's proportional

Step-by-step explanation:

Which of the following equations has exactly one solution? A. 4 x − 4 + 2 x = 6 x − 4 B. 4 x − 8 = 4 ( x − 4 ) C. 3 x + 5 = 2 x − 6 D. 2 ( 4 x + 5 ) = 8 x + 10

Answers

Answer:

C. 3x + 5 = 2x -6

Step-by-step explanation:

Chet started to slow his eating speed down later in the evening. He was
now eating only 1/4 of a turkey every 2 hours. What was his unit rate
later in the evening?

Answers

Answer:

The unit rate is:

1/8 turkey/per hour.

Step-by-step explanation:

As Chet was eating 1/4 of a turkey every 2 hours.

This tells us that every two hours, Chet will eat 175 1/4 of a turkey.

Unit rate basically means 'how much of something per 1 unit of something else'.

A unit rate is a rate with a denominator of 1 unit.

This means, in 1 hour, Chet will eat half of what he eats every 2 hours.

so Chet will eat [tex]\frac{\frac{1}{4}}{2}=\frac{1}{8}[/tex] of a turkey in 1 hour.

i.e.

[tex]\frac{\frac{1}{4}}{2}=\frac{1}{8}[/tex]

Therefore, the unit rate is:

1/8 turkey/per hour.

f(x)=2x+3 g(x)=x-4 Find (fg)(x) (Hint use FOIL)

Answers

Answer:

2x^2-5x-12

Step-by-step explanation:

using foil this should be the answer, do you need the solution values?

Helppp will mark brainliestttt

Answers

The set of ordered pairs represents a function because every input has only one corresponding output.

3x+2=2x+2+x
How many solutions does the equation have? Explain why and how

Answers

Step-by-step explanation:

3x-2x -x = 2-2

x=0

the solutions =2

1) must moves the numbers

2) solve them

The hypotenuse of a right triangle is 8.2 inches long and one of the legs is 6.4 inches long. What is the length of the other leg?

Answers

Answer:

5.1

Step-by-step explanation:

To solve this equation I will use the formula a²+b²=c². For these terms I will represent the missing value as the variable a. The equation should be renewed as this: a²+6.4²=8.2², simplified: a²+40.96=67.24. I will now subtract 40.96 from 67.24 to get "a" by itself, as of which now I have a²=26.28. Next I square root both values: √a² =√26.28. The final answer is "a"= 5.1264022471905, otherwise, when rounded, "5.1". Hopefully this helps. A word of advice, when a problem gives you two values for a triangle, always refer to the equation a²+b²=c², as you will always find the missing value. Also remember that the legs cannot be of greater value than the hypotenuse which is the diagonal line. The hypotenuse is always "c".

Solve for x
-22=2(x-10)

Answers

Answer:

−

(

−

)

x-22={\color{#c92786}{2(x-10)}}

x−22=2(x−10)

−

Step-by-step explanation:

Answer:

x=-21

Step-by-step explanation:

first expand the brackets

-22=2x-20

then make x on its own

-42=2x

then dived by 2

-21=x

Write a factored equation that has the solutions x=6 and x=-1

Answers

Answer:

y = (x - 6)(x + 1)

Step-by-step explanation:

Use factored form, y = a(x - r1)(x - r2), where r1 and r2 are roots.

Since the solutions are 6 and -1, plug in these numbers:

y = (x - 6)(x + 1)

So, the factored equation is y = (x - 6)(x + 1)

Answer: (x-6)(x+1)

Step-by-step explanation:

Por un kilo y medio de merluza se ha pagado 21,30 €. A cuanto estaba el kilo?

Answers

Lo siento mucho, no hablo muy bien español ... ¡Ojalá pudiera! Sería mucho más útil de esa manera

Assume that y varies directly with x. If y= 2/5 when x= 1/3, find y when x = 1/4

Answers

Step-by-step explanation:

y1/x1=y2/x2

2/5÷1/3=y÷1/4

y=3/10=0.3

ANSWER ASAP PLEASE & SHOW UR WORK!!!
Find the real or imaginary solutions. x^4 + 3x^2 - 18 = 0

Answers

Answer:

[tex]x_1=\mathbf{i}\sqrt{6},\ x_2=-\mathbf{i}\sqrt{6},\ x_3=\sqrt{3},\ x_4=-\sqrt{3}[/tex]

Step-by-step explanation:

Biquadratic Equations

Solve:

[tex]x^4 + 3x^2 - 18 = 0[/tex]

The biquadratic equations are equations of degree 4 without the terms of degree 1 and 3.

Solving such equations requires to express the equation as a second-degree equation with [tex]x^2[/tex] as the variable.

Rewriting the equation:

[tex](x^2)^2 + 3(x^2) - 18 = 0[/tex]

The quadratic equation can be factored as:

[tex](x^2+6)(x^2-3)=0[/tex]

It leads to two equations:

[tex]x^2+6=0[/tex]

[tex]x^2-3=0[/tex]

The first equation has imaginary roots. Solving for x:

[tex]x^2=-6[/tex]

[tex]x=\pm\sqrt{-6}[/tex]

[tex]x_1=\mathbf{i}\sqrt{6}[/tex]

[tex]x_2=-\mathbf{i}\sqrt{6}[/tex]

Where

[tex]\mathbf{i}=\sqrt{-1}[/tex]

The second equation has two real roots:

[tex]x^2-3=0[/tex]

[tex]x^2=3[/tex]

[tex]x=\pm\sqrt{3}[/tex]

[tex]x_3=\sqrt{3}[/tex]

[tex]x_4=-\sqrt{3}[/tex]

The roots are:

[tex]\mathbf{x_1=\mathbf{i}\sqrt{6},\ x_2=-\mathbf{i}\sqrt{6},\ x_3=\sqrt{3},\ x_4=-\sqrt{3}}[/tex]

If a person walks 1/4 of a mile in 1/8 of an hour. Determine how many miles they are running per hour.

Answers

Answer:

1&1/8 m/h

Step-by-step explanation:

2/8 of a mile = 1/8 of an hour

add 7/1 to both sides thats 1 and 1/8 of a mile in 1 hour

What is 75% of 80?
A.
20
B.
45
C.
60
D.
75

Answers

Answer:

the answer is C. 60 .....

Answer:

-2

Step-by-step explanation:

The final equation is y= -2x+4, so the slope is -2

Answer:

The slope is -2

Step-by-step explanation:

This equation is in point slope form

(y-y1) = m(x-x1) where m is the slope and ( x1,y1) is a point on the line

y+2=−2(x−3)

y- -2=−2(x−3)

The slope is -2 and a point on the line is ( -3,-2)

Allison has a $35 budget for the county fair. She spends $15 at a craft booth and she wants to buy some kettle corn for her friends that cost $4 for each bag.
Let x = number of friend's

Answers

Answer: she can buy it for 5 friends

Step-by-step explanation:

$35(budget)- $15(craft booth) =$25

then $25 divided by $4 equals 5

So 5 people she can but for.

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