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3 years ago

Evaluate the expression. (-5)(5) +5=

Mathematics

1 answer:

Ierofanga [76]3 years ago

8 0

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(-5)(5) +5 Equation

Step 2

(-5)(5) +5 Simplify

(-5)(5) +5

Step 3

(-5)(5) +5 Add and multiply them

(-25)+5

answer

-20

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Of the 630 seats in the cafeteria 70% earners how many seats are being used

stepladder [879]

Answer:

441 seats are being used :]

Step-by-step explanation:

4 0

3 years ago

Given \tan A = \frac{7}{{24}}, find the cos B

Natali5045456 [20]

We are given

$tan(A)=\frac{7}{24}$

we know that

$tan(A)=\frac{opposite}{adjacent}$

so, we get

opposite =7

adjacent=24

now, we can find hypotenuse

$hypotenuse=\sqrt{7^2+24^2}$

$hypotenuse=25$

now, we can draw triangle and then switch vertices accordingly

we can find cos(B) using second triangle

$cos(B)=\frac{adjacent}{hypotenuse}$

In second triangle:

adjacent=7

hypotenuse =25

so, we get

$cos(B)=\frac{7}{25}$ ................Answer

8 0

3 years ago

A train is going at 200/KM per hour

olya-2409 [2.1K]

Answer:

It moved for 152.7 seconds

Step-by-step explanation:

Time taken/ period, T :

${ \sf{T = \frac{distance}{speed} }}$

substitute the variables:

${ \sf{T = \frac{8482}{(200 \times 1000)} }} \\ \\ { \sf{T =0.042 \: hours }}$

In seconds:

${ \sf{T = (0.042 \times 3600) \: s}} \\ { \sf{T = 152.7 \: seconds}}$

6 0

3 years ago

Read 2 more answers

What is the gradient of the graph shown?

JulijaS [17]

Answer:

Step-by-step explanation:

5 0

2 years ago

Need help with this.

skelet666 [1.2K]

Answer:

-5/2(3x+4)<6-3x (multiply with -5/2)

-15/2x-10<6-3x (multiply with 2)

-15x-20<12-6x (change sides)

-15x+6x<12+20

-9x<12+20

-9x<32

x>-32/9

Hope this will help u :)

3 0

3 years ago