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4 years ago

PLEASE! Help me with the third one. I am totally lost. I appreciate any help. If you can't see the picture let me know

Mathematics

1 answer:

vazorg [7]4 years ago

3 0

I can only tell u the formula
a²+b²=c²

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At Elisa's printing company llc there are two kinds of printing presses: model a which can print 70 books per day and model b wh

Vilka [71]

70a + 55b = 905
a + b = 14
55a + 55b = 770

(70a-55a) + (55b-55b) = 905 - 770
15a = 135
a = 9

a + b = 14
9 + b = 14
b = 5

7 0

3 years ago

During the school year, each student planted 2 x 10^2 trees as part of a community service project. If there are 3.5 x 10^3 stud

amm1812

Answer:

Total number of trees planted = $7\times 10^{5}$ trees

Step-by-step explanation:

Trees planted by each student = $2\times 10^2$

Total number of students = $3.5\times 10^3$

Using unitary method to find total number of trees planted by all the students in school.

1 student plants = $2\times 10^2$ trees

$3.5\times 10^3$ student would plant = $(2\times 10^2)\times (3.5\times 10^3)$

We apply the product rule of exponents to multiply $[a^xa^y=a^{x+y}]$

⇒ $(2\times 3.5)\times(10^2\times 10^3)$

⇒ $7\times 10^{2+3}$

⇒ $7\times 10^{5}$ trees

Total number of trees planted = $7\times 10^{5}$ trees

4 0

4 years ago

What is the equation of a horizontal line that passes through the point<br> (7, 11)

Vlad1618 [11]

Your answer is D

A horizontal line is parallel to the x-axis and passes through all points in the plane with the same y-coordinate the equation is y = c where c is the value of the y-coordinate the line passes

Sure hope this helps you

4 0

2 years ago

Read 2 more answers

What is the horizontal difference between (4, 8) and (-2, 2)?

Stolb23 [73]

Answer:

6 units

Step-by-step explanation:

the horizontal difference is the distance between the x values of both points. we know the distance between 4 and -2 is 6.

4 0

3 years ago

What is 1,562 divided by 34

marishachu [46]

This would be 45.9
Get a calculator or try long division :-)

3 0

3 years ago

Read 2 more answers