Help please for math

Answer:

y =1.6 x

Step-by-step explanation:

hope this is right!!!

Answer:

y=0.5+0.8x

Step-by-step explanation:

solve for the first variable in one of the equations and then substitute the result into the other equation

Answer:

x = 4 y = 2✓3

Step-by-step explanation:

I'm big brain

Answer:

1,3,4 and 5 are the angles which are less than 90°.

Step-by-step explanation:

A 90° angle looks like this |_.

So if there's any any angle that has measure less than 90° likely looks like this /_ ( Just connect the fixed and the terminal ray. I couldn't do it here. )

Hope this helps you.

Answer:

1, 3, 4, 5

Step-by-step explanation:

They are all less than 90°!

Hai!

I believe this would be 11.

Brainliest please?

Answer:

the difference between the 2 pens is 4.8 cm

Answer:

-0.09

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

g(12) = 5/4(12)-7 = 15-7 = 8

Answer:

-5

Step-by-step explanation:

3.8x= -19

3.8x/3.8= -19/3.8

x=-5

Answer:

17= Prime number

54= Composite

77=Composite

23=Prime

Hello there!

Prime numbers have 2 factors and composite numbers have 3 or more factors.

17 is prime because it has only 2 factors: 1 and itself.

54 is composite because it has more than 3 factors.

77 is composite because it has more than 3 factors.

23 is prime because it has only 2 factors.

Hope this helps you!

~Just a joyful teen

[tex]SilentNature[/tex]

Answer:

22.86

Step-by-step explanation:

2.54 x 9 will give you the answer.

Answer:

22.86

Step-by-step explanation:

2.54×9 = 22.86

hope this helps :)

Step-by-step explanation:

this is the answer I hope it helps

Answer: Its A

Step-by-step explanation:

Answer:

Sometimes, fractions can be written in 'improper' form, meaning that the top number (numerator) is bigger than the bottom number (denominator). So anything multiplied by a fraction like this will give a bigger number.

For example:

5 × 2/1 = 10

10 x 10/1 = 100

Step-by-step explanation:

Answer:

Step-by-step explanation:

There are two cases where this is true. When the fraction has the same numerator and denominator, or when the numerator is much larger than the denominator.

[tex]2*\frac{4}{4}=2[/tex]

[tex]2*\frac{100}{2}=100[/tex]

ok the first one

and this is the second one

Answer:

(39) -6x+7 (40) 33n+15 (41) -4a-4 (42) 2k

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

just use logic it really helps you have to think things through

Answer:

4 feet

Step-by-step explanation:

?+8=12

4+8=12

12*4=48

Making the answer 4 feet

Answer:

.

Step-by-step explanation:

.

Answer:

Step-by-step explanation:

166:581

Answer:

[tex]x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}[/tex]

Step-by-step explanation:

Given;

x² - 2x - 1 = 0

Solve by completing the square method;

⇒ take the constant to the right hand side of the equation.

x² - 2x = 1

⇒ take half of coefficient of x = ¹/₂ x -2 = -1

⇒ square half of coefficient of x and add it to the both sides of the equation

[tex]x^2 + (-1)^2 = 1 + (-1)^2[/tex]

[tex](x-1)^2 = 1 + 1\\\\(x-1)^2 = 2\\\\[/tex]

⇒ take the square root of both sides;

[tex]x-1 = +/- \ \ \sqrt{2} \\\\x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}[/tex]

Therefore, option B is the right solution.

Answer:

p = 20, q = 20, r = 30

Step-by-step explanation:

The triangle to the left of OA is isosceles ( 2 equal radii ), then the base angles are congruent, so

p = 20

The 3 angles in this triangle sum to 180°, then the angle at O is

180 - (20 + 20) = 180 - 40 = 140°

AB is a straight line so angle in triangle containing q is 180 - 140 = 40

The triangle containing q is also isosceles ( 2 equal radii ) then base angles are congruent, then

q = [tex]\frac{180-140}{2}[/tex] = [tex]\frac{40}{2}[/tex] = 20

The triangle to the right of OA is also isosceles ( 2 equal radii ) then the base angles are congruent, so

r = 30

Then p = 20, q = 20, r = 30

Answer:

Step-by-step explanation:

Step 2, she factored the trinomial incorrectly. She did, "what two numbers multiply to equal 6 but add to equal 5?" She should have asked multiply to equal -6 and add to equal 5. The correct factorization would be:

(x+6)(x-1) = 0

x = -6 and 1

Answer:

850.9 feet

Step-by-step explanation:

The horizontal distance between Ryan and the dolphin is 850.907 feet.

One area of mathematics known as trigonometry examines the relationship between the sides and angles of a right triangle. The relationship between sides and angles is defined for 6 trigonometric functions.

We have,

Ryan is 228 feet above the water and the angle of depression to the dolphin is 15.

Using trigonometry

tan 15 = 228/ x

x= 228/ tan 15

x= 228 / 0.26794919243

x = 850.907  feet

Learn more about Trigonometry here:

https://brainly.com/question/29002217

#SPJ2

Answer:

Tayler has 35 SHKITTLES IN ALL

Step-by-step explanation:

Since Tayler has 20 red Skittles, and the ratio of blue skittles to red skittles is 3 to 4, that means that Tayler has 3/4 as many blue skittles as she does red skittles. 3/4 of 20 is 15

20 + 15 = 35

Thus, Tayler has 35 skittles

SHKITTLES lol

Answer:

In quadrilaterals all parrallelograms which incude

Rectangle, Square, Rhoumbus and Parrallelogram have their diagnoos bisecting each other

Other than Parrallelograms Non Parrallelogram shapes like Trapezium also has its Diagnols bisectneach other

Hope it helps

Answer:

1. h=1.5d. 2. 30cm in 20 days

Step-by-step explanation:

2. 20×1.5

Answer:

Hey there, the answer is

C. 32,200 cm

Step-by-step explanation:

I took the test and got it correct, hope this helps!

Answer:

32,200 cm³

Step-by-step explanation:

Took the test