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3 years ago

WILL GIVE BRANLIEST,VOTE, AND RATE!!!!!!!!!!!

Mathematics

1 answer:

kondaur [170]3 years ago

4 0

Step-by-step explanation:

1st digit is 1 number (1)

2nd digit is (3,4,5) so it's 3 numbers

third digit is (6,7,8,9) is it's 4 numbers

last 7 digits is 10 (0,1,2,3,4,5,6,7,8,9)

multiply

1*3*4*10=120

so answer is 120 phone numbers

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Please help!

topjm [15]

Answer:

option A is correct .

<h2>knowing that</h2>

 ${6}^{2} + {8}^{2} = {10}^{2}$ 

<h2>draw the 6-foot side and the 8-foot side and a right angle between them the 10-foot side with complete the right triangle</h2>

3 0

2 years ago

Which of the graphs below correctly solves for x in the equation −x2 − 3x − 1 = −x − 4?

gtnhenbr [62]

Answer:

Graph of quadratic opening downward and linear sloping up to the left. They intersect at point negative 3, negative 1 and point 1, negative 5

Step-by-step explanation:

we have

$-x^{2} -3x-1=-x-4$

we can separate the expression above into two equations

$y=-x^{2} -3x-1$ ----> equation A

This is a quadratic equation ( vertical parabola) open downward (the leading coefficient is negative)

$y=-x-4$ ----> equation B

This is a linear equation with negative slope (decreasing function).so linear sloping up to the left

The solution of the original expression are the x-coordinates of the intersection point both graphs

using a graphing tool

The intersection points are (-3,-1) and (1,-5)

see the attached figure

4 0

3 years ago

A summer camp cookout is planned for the campers and their families. there is room for 450 people. each adult costs $7, and each

Yuri [45]

Hence, the required inequality is x+y≤4, 7x+4y≤1150

<h2>What is inequality?</h2>

inequality, In mathematics, a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

<h3>How to solve?</h3>

Let x be the number of adults and y be the number of campers.

There are rooms for 450 people, so

x+y≤450.

Each adult costs $7, then x adults cost $7x.

Each camper costs $4, then y campers cost $4y.

There is a maximum budget of $1,150, so

7x+4y≤1,150

Hence, you get the system of two inequalities:

x+y≤4

7x+4y≤1150

to learn more about inequality: brainly.com/question/16562548

#SPJ4

3 0

2 years ago

Which equation shows y=−1/2x+4 is in standard form?

gavmur [86]

Y = -1/2x + 4

2y = -x + 8

x + 2y = 8: the standard form

4 0

3 years ago

5. 4. Ms. Le has a bag of marbles. The table below shows the amount she drew of each marble. Color Amount Blue 8 Red 10 Yellow 9

Pavel [41]

Answer:

A, 2/5

Step-by-step explanation:

8 + 10 + 9 + 6 + 7 = 40

9 + 7 = 16

16/40

divide both sides by 8 (common factor)

2/5

7 0

2 years ago