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3 years ago

5

Aidan has four cards with +, -, x, ÷ printed on them.

1 answer:

lutik1710 [3]3 years ago

6 0

9514 1404 393

Answer:

multiply (×)

Step-by-step explanation:

5 ×4 - 3 +2 ÷1 = 19

Emma would place the multiply (×) operation first.

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6. WILL MARK BRAINLIEST!!! HELP!!

Evgesh-ka [11]

The answer is 4.66

3
——— = 8
y-2

y-2 = 8/3 —> 2.66

y = 2.66 + 2 —> 4.66

8 0

3 years ago

Finding Hypotenuse Lengths. Find the length of the hypotenuse.

ioda

Answer:

11) $\frac{3\sqrt{5}}{2}$

12) $4\sqrt{5}$

13) $22$

14) $18$

15) $2$

16) $24\sqrt{3}$

Step-by-step explanation:

For these problems I used the pythagorean theorem: $a^{2}+ b^{2}= c^{2}$ and SOHCAHTOA

Sin = $\frac{opposite}{hypotenuse}$

Cos = $\frac{adjacent}{hypotenuse}$

Tan = $\frac{opposite}{hypotenuse}$

11)

First find the length of the bottom side by using Cos

$cos(60)=\frac{x}{3}$

$3(cos(60))=x$

$1.5=x$

Then plug it into the formula for the pythagorean theorem to find the hypotenuse

$3^{2}+ 1.5^{2}= c^{2}$

$9+2.25=c^{2}$

$\sqrt{11.25}=\sqrt{c^{2}}$

$\frac{3\sqrt{5}}{2}$

12)

Find the length of the bottom side using Cos

$cos(60)=\frac{x}{8}$

$8(cos(60))=x$

$4=x$

Then plug it into the formula for the pythagorean theorem to find the hypotenuse

$8^{2}+ 4^{2}= c^{2}$

$64+16=c^{2}$

$\sqrt{80} =\sqrt{c^{2} }$

$4\sqrt{5}$

13)

Find the length of the other side by using Tan

$tan(30)=\frac{x}{11\sqrt{3} }$

$11\sqrt{3}* (tan(30)=x$

$11=x$

Then plug it into the formula for the pythagorean theorem to find the hypotenuse

$(11\sqrt{3}) ^{2}+ 11^{2}= c^{2}$

$363+121=c^{2}$

$\sqrt{484} =\sqrt{c^{2}}$

$22$

14)

(This is probably an easier way to do these problems)

Find the hypotenuse by using Cos ( $\frac{adjacent}{hypotenuse}$ )

$cos(60)=\frac{9}{x}$

$cos(60)x=9$

$x=\frac{9}{cos(60)}$

$x=18$

15)

Find the hypotenuse using Sin ( $\frac{opposite}{hypotenuse}$ )

$sin(30)=\frac{1}{x}$

$sin(30)x=1\\x=\frac{1}{sin(x)}$

$x=2$

16)

Find the hypotenuse using Cos ( $\frac{adjacent}{hypotenuse}$ )

$cos(60)=\frac{12\sqrt{3} }{x}$

$cos(60)x=12\sqrt{3}$

$x=\frac{12\sqrt{3} }{cos(60)}$

$x=24\sqrt{3}$

5 0

4 years ago

Please answer correctly ASAP !!!!!! Will mark brainliest !!!!!!!!!

BigorU [14]

Answer:

X=3/2 and 2/3

Step-by-step explanation:

6x^2 - 13^x + 6= 0

6x^2 - 4x - 9x + 6=0

By factorising...

2x(3x - 2) - 3(3x - 2)=0

(2x - 3) (3x - 2)=0

2x - 3=0

2x=3

X=3/2

3x - 2=0

3x=2

X=2/3

Hence, X=3/2 and 2/3

7 0

3 years ago

What is the value of the expression r +1988 if r =2976

OlgaM077 [116]

I think 4,967

Substitue r with 2976-

r +1988 to 2976 +1988

/-

8 0

4 years ago

Solve 25t+5/3<-9 for t.

KATRIN_1 [288]

Answer:

t<-32/75

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

4 0

3 years ago

Read 2 more answers