1 year ago

Cual es el valor de x-7=13

Mathematics

1 answer:

Ghella [55]1 year ago

3 0

Answer:

Step-by-step explanation:

u add 13+7 and that gives you 20, so if you subtract 20 and 7 that gives you 13

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Solve for side AB. Show all your work Please help!

mrs_skeptik [129]

Given triangle is a right angle triangle so we are allowed to use trigonometric formulas.

We want to find Hypotenuse using angle A and base 7 cm

so right choice is to use cosine

$\cos(A)=\frac{AC}{AB}$

$\cos(25^{\circ})=\frac{7}{AB}$

$0.90631=\frac{7}{AB}$

$AB=\frac{7}{0.90631}$

$AB=7.72362657369$

Hence value of side AB is approx 7.72 cm.

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2 years ago

What is the standard form of (1-3i)(2+5i)

artcher [175]

Answer:

17 - i

Step-by-step explanation:

Step 1: FOIL out

(1 - 3i)(2 + 5i)

(2) + (1 * 5i) + (-3i * 2) + (-3i * 5i)

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3 years ago

Determine the intercepts of the line.

jeyben [28]

Answer:

y- intercept = - 13 , x- intercept = $\frac{13}{5}$

Step-by-step explanation:

To find the y- intercept, substitute x = 0 into the equation and solve for y

y = 5(0) - 13 = 0 - 13 = - 13 ← y- intercept

To find the x- intercept substitute y = 0 into the equation and solve for x

0 = 5x - 13 ( add 13 to both sides )

13 = 5x ( divide both sides by 5 )

$\frac{13}{5}$ = x

x- intercept = $\frac{13}{5}$ = 2 $\frac{3}{5}$ = 2.6

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2 years ago

An isosceles triangle has two sides of equal length. The third side is 7 less than twice the length of one of the other sides. I

mixer [17]

2x+y=44
y+7=2x
y=18.5
x=12.75

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3 years ago

Read 2 more answers

Make y the subject in the formula v = u2 – t

AlekseyPX

Hw r v gon do that if y aint there in yo expression?

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2 years ago