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2 years ago

Can someone help me pleaseee

Mathematics

1 answer:

slavikrds [6]2 years ago

7 0

Answer:

£13,831.72

Step-by-step explanation:

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Help Image attached Please

Stels [109]

Answer:

Step-by-step explanation:

-5x + 10 > -15

-5x > -25

x < 5

(switch direction of inequality sign when multiplying or dividing by a negative number)

Because x < 5, the arrow would go left (more negative) starting at 5, so the answer would be A.

4 0

2 years ago

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Please for the love of god anwser my question lay correctly I really need your help :( I will give 25 points :)! This is geometr

tangare [24]

Answer:

$\displaystyle \rm A_{ \text{c - pentagon}} =41$

$\rm \displaystyle P _{ \rm c - pentagon} = 20+ 4 \sqrt{2}$

Step-by-step explanation:

we have a square and a triangle

we want to figure out the area and the perimeter of the pentagon

to figure out the area of the pentagon we can use the given formula:

$\displaystyle \rm A_{ \text{c - pentagon}} = A_{ \text{squre}} - A_{ \text{triangle}}$

let's figure out $A_{\rm square}$ :

since the given shape is a square Every angle of its 90° Thus the triangle is a right angle triangle

therefore the height is 4

$\displaystyle A _{ \rm triangle} = \frac{1}{2} \times b \times h$

substitute h and b

$\displaystyle A _{ \rm triangle} = \frac{1}{2} \times 4 \times 4$

reduce fraction:

$\displaystyle A _{ \rm triangle} = 2 \times 4$

simplify multiplication:

$\displaystyle A _{ \rm triangle} = 8$

likewise square

$\displaystyle A _{ \rm squre} = {s}^{2}$

substitute s:

$\displaystyle A _{ \rm squre} = {7}^{2}$

simplify square

$\displaystyle A _{ \rm squre} = 49$

hence,

$\displaystyle \rm A_{ \text{c - pentagon}} =49- 8$

$\displaystyle \rm A_{ \text{c - pentagon}} =41$

to figure out perimeter

let's figure out hypotenuse first

$\displaystyle h = \sqrt{ {4}^{2} + {4}^{2} }$

$\displaystyle h = \sqrt{ 16 + 16}$

$\displaystyle h = 4 \sqrt{2}$

therefore,

$\rm \displaystyle P _{ \rm c - pentagon} = 3 + 3 + 4 \sqrt{2} + 7 + 7$

$\rm \displaystyle P _{ \rm c - pentagon} = 6 + 4 \sqrt{2} + 14$

$\rm \displaystyle P _{ \rm c - pentagon} = 20+ 4 \sqrt{2}$

5 0

3 years ago

A triangle has angle measures 23 degreea and 35 degrees. What is the measure of the third angle?

Simora [160]

Answer:

122 degrees

Step-by-step explanation:

All the angles of a triangle have to add up to 180 degrees, and 180-35-23=122 degrees

3 0

2 years ago

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I need MATH HELP!! I cant understand!

SSSSS [86.1K]

Answer:

Step-by-step explanation:

X( -9 , 2) & Y(5 , -4)

$distance = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\\\XY=\sqrt{(5-[-9])^{2}+(-4-2)^{2}}\\\\=\sqrt{(5+9)^{2}+(-6)^{2}}\\\\=\sqrt{(14)^{2}+(-6)^{2}}\\\\=\sqrt{196+36}\\\\=\sqrt{232}\\\\= 15.23$

4 0

2 years ago

If zn = z√, what value of n makes this equation true?

GarryVolchara [31]

Answer:

$zn\:=\:z\sqrt{n^2}$

Step-by-step explanation:

zn = z√?

√? = $\frac{zn}{z}$

√? = n

? = n²

Therefore z√n² makes the statement zn true

4 0

2 years ago

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