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3 years ago

What is 12(18)>8+34-98=

Mathematics

2 answers:

Elan Coil [88]3 years ago

8 0

216>-56

I’m pretty sure this is how you want this answered.

Law Incorporation [45]3 years ago

5 0

Answer:

12*18?8+34-98

216>-56

TRUE

Step-by-step explanation:

You might be interested in

Gustavo is in a contest where he will win one of four possible

bulgar [2K]

Answer:

Step-by-step explanation:

One of four in number form is 1/4 this is the only thing I can tell you without knowing what the answer choices are or what the question is

3 0

3 years ago

For what values of b are the vectors \langle -46, b, 10 \rangle and \langle b, b^2, b \rangle orthogonal

Jet001 [13]

Answer:

b = 6 or b = -6 (non-zero vectors)

b = 0 (zero vector)

Step-by-step explanation:

Two vectors $\vec{a}=\langle a_1,a_2,a_3\rangle$ and $\vec{b}=\langle b_1,b_2,b_3\rangle$ are orthogonal if their dot product is equal to 0, or in other words

$a_1\cdot b_1+a_2\cdot b_2+a_3\cdot b_3=0$

In your case,

$\vec{a}=\langle -46, b, 10\rangle\\ \\\vec{b}=\langle b,b^2,b\rangle$

Hence, if vectors a and b are orthogonal, then

$-46\cdot b+b\cdot b^2+10\cdot b=0\\ \\-46b+b^3+10b=0\\ \\b^3-36b=0\\ \\b(b^2-36)=0\\ \\b(b-6)(b+6)=0\\ \\b=0\text{ or }b=6\text{ or }b=-6$

Note, then if b = 0, then $\vec{b}=\langle 0,0,0\rangle$ and zero-vector is orthogonal to any other vectors.

Thus, b = 6 or b = -6.

7 0

3 years ago

The length of a rectangular football field, including both end zones, is 120 yards. The area of the field is 57,600 square feet.

egoroff_w [7]

Answer:

3a.False,the width is 53.33 yards

3b.true, the Length is 120 yards=360 feet

3c.True, width of the field is 160 feet.

3d. True,rea of the field is 6,400 square yards.

Step-by-step explanation:

Hello , I think I can help you with this

to solve this you must know the equivalence between feet and yard, which is

3 feet = 1 yard

Also, the area of a rectangle is the product of its length by its width

Area=length *width

Step 1

convert 120 yards into feet using a rule of three

3 feet = 1 yard

x feet= 120 yards

3/1=x/120

x=(120*3)/1

x=360 feet

120 yards= 360 feet

Step 2

isolate the width from the area´s equation to find out it.

Area=57600 square feet

length=360 feet

Area=length *width

width=Area/length

Width=57600 square feet/360 feet

Width=160 feet

Step 3

convert 160 feet into yards

1 yard= 3 feet

x yard= 160 feet

1/3=x/160

x=(1*160)/3

x=53.33 yards

width=53.33 yards

the area is (square yards)

Area=120 yards*53.33 yards

Area=6400 square yards

Step 4

Answer the questions.

3a.False,the width is 53.33 yards

3b.true, the Length is 120 yards=360 feet

3c.True, width of the field is 160 feet.

3d. True,rea of the field is 6,400 square yards.

Have a nice day.

7 0

3 years ago

The school science club raised $325.After buying equipment for an experiment they had $168 left.How much did they spend ?

Vsevolod [243]

325-x=168
325-168=x
x=157
325-157=168

They spent $157.

5 0

4 years ago

A pilot knows she descended 1,000 feet and traveled a diagonal distance of 18,000 feet.

Arada [10]

The horizontal distance covered by pilot is 17,972.2 feet.

Step-by-step explanation:

Given,

Distance covered descending = 1000 feet

Diagonal distance = 18,000 feet

The horizontal distance will form a right triangle, therefore, we can find the horizontal distance by using pythagoras theorem.

Here,

a = 1000

b = horizontal distance

c = 18000

$a^2+b^2=c^2\\(1000)^2+b^2=(18000)^2\\1000000+b^2=324000000\\b^2 = 324000000-1000000\\b^2=323000000$

Taking square root on both sides

$\sqrt{b^2}=\sqrt{323000000}\\b=17972.2$

The horizontal distance covered by pilot is 17,972.2 feet.

Keywords: pyathoras theorem, square root

Learn more about square root at:

#LearnwithBrainly

3 0

3 years ago