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3 years ago

Solve for x. -x + 7 = x - 5 Will mark brainlest

Mathematics

2 answers:

Natasha_Volkova [10]3 years ago

8 0

Well this is how you do it.

vladimir1956 [14]3 years ago

3 0

Answer:

x=6

Step-by-step explanation:

to remove the negative x on one side add it to both sides.

then add 5 to both sides.

then divide by 2

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Changle. Show all work. Round each length to the nearest tenth and each angle to the

Sedaia [141]

Answer:

Part 1) $BC=12.2\ units$

Part 2) $m\angle A=55^o$

Part 3) $m\angle C=35^o$

Step-by-step explanation:

Part 1) Find AC

we know that

In the right triangle ABC of the figure

Applying the Pythagorean Theorem

$AC^2=AB^2+BC^2$

substitute the given values

$AC^2=7^2+10^2$

$AC^2=149\\AC=12.2\ units$

Part 2) Find the measure of angle A

we know that

In the right triangle ABC

$tan(A)=\frac{BC}{AB}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the values

$tan(A)=\frac{10}{7}$

using a calculator

$m\angle A=tan^{-1}(\frac{10}{7})=55^o$

Part 3) Find the measure of angle C

we know that

In the right triangle ABC

$m\angle A+m\angle C=90^o$ ----> by complementary angles

substitute the given value

$55^o+m\angle C=90^o$

$m\angle C=90^o-55^o=35^o$

8 0

3 years ago

The measure of angle 3 is 42 degrees

tia_tia [17]

Angle 1 is equal to 48°
if angle 3 and 2 are known you add them and subtract from 180

4 0

3 years ago

Read 2 more answers

Round each fraction to the nearest half and find the estimate.

erastova [34]

Answer: The result is one half ( $\frac{1}{2}$ )

Step-by-step explanation:

We have the following expression:

$\frac{2}{6}+\frac{1}{6}$

Since both fractions have the same denominator, we can just add both numerators and keep the denominator:

$\frac{2+1}{6}=\frac{3}{6}$

Dividing numerator and denominator by $3$ :

$\frac{\frac{3}{3}}{\frac{6}{3}}=\frac{1}{2}$ This is the result

3 0

3 years ago

What is 15% of 60? Create a model to prove your answer (this is the question. I didn't really understand today's lesson in class

skelet666 [1.2K]

If you have instagram dm me and ill show you how to make the graph my instagram is ____ella.grace____ 4 underscores btw

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3 years ago

Two particles travel along the space curves r1(t) = t, t2, t3 r2(t) = 1 + 2t, 1 + 6t, 1 + 14t . Find the points at which their p

rusak2 [61]

Answer:

DNE

Step-by-step explanation:

Given that two particles travel along the space curves

$r_1(t) = (t, t^2, t^3)\\ r_2(t) = (1 + 2t, 1 + 6t, 1 + 14t )$

To find the points of intersection:

At points of intersection both coordinates should be equal.

i.e. r1 =r2

Equate corresponding coordinates

$t=1+2t\\t^2=1+6t\\t^3=1+14t$

I equation gives t =-1

Substitute in II equation to get $t^2 = -5$

i.e. t cannot be real

Hence no point of intersection

DNE

8 0

3 years ago