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2 years ago

I need help with this , 15-17

Mathematics

1 answer:

vladimir1956 [14]2 years ago

4 0

Answer:

-2

Step-by-step explanation:

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Find the area of the following parallelogram: 1.5 cm 2.5 cm 2.25 cm A= [?] cm

Serggg [28]

Answer:

given,

base (b) = 2.25cm

height (h) = 1.5 cm

now,

area (a) = b×h

or, a=2.25cm×1.5cm

therefore the area of parallelogram is 3.375cm^2.

hope it helps..

7 0

2 years ago

43=0.34x+19.5 What is x

Angelina_Jolie [31]

Step-by-step explanation:

43=0.34x+19.5

=> 0.34x+19.5 = 43

=> 0.34x = 43 - 19.5

= 23.5

$= > x = \frac{23.5}{0.34}$

=> x = 69.117 (Ans)

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2 years ago

Find the point-slope equation for

Marizza181 [45]

$(\stackrel{x_1}{7}~,~\stackrel{y_1}{-21})\qquad (\stackrel{x_2}{-4}~,~\stackrel{y_2}{23}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{23}-\stackrel{y1}{(-21)}}}{\underset{run} {\underset{x_2}{-4}-\underset{x_1}{7}}} \implies \cfrac{23 +21}{-4 -7} \implies \cfrac{ 44 }{ -11 }\implies -4$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-21)}=\stackrel{m}{-4}(x-\stackrel{x_1}{7})\implies y+21=-4(x-7)$

4 0

1 year ago

What are solutions to the equation sinx cosx = square root 3 over4

andrey2020 [161]

$\sin(x)\cos(x)=\dfrac{\sqrt{3}}{4}\\\\2\sin(x)\cos(x)=\dfrac{\sqrt{3}}{2}\\\\\sin(2x)=\dfrac{\sqrt{3}}{2}\\\\2x=\arcsin\left( \dfrac{\sqrt{3}}{2} \right)\\\\2x=\left\{ \dfrac{\pi}{3},\dfrac{2\pi}{3}\right\}+2n\pi\\\\\boxed{x=\left\{ \dfrac{\pi}{6},\dfrac{\pi}{3}\right\}+n\pi}$

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3 years ago

Kelly had a part time job last year.She paid the state $234 income tax.The state income tax rate is 5.2 percent.How much did Kel

castortr0y [4]

Answer:

$4500

Step-by-step explanation:

Given data

State income tax= $234

we are told that the tax paid is 5.2% of her income

Let her earnings be x

5.2% of x = $234

5.2/100*x=234

0.052x= 234

x= 234/0.052

x= $4500

Hence her earnings is $4500

8 0

2 years ago