3 years ago

Can some one help me I’ll mark brainliest answer‼️‼️

Mathematics

1 answer:

gogolik [260]3 years ago

4 0

Answer:

i think its 5.652 hope it helps

Step-by-step explanation:

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tigry1 [53]

Answer:

C) $-\frac{47}{49}$

Step-by-step explanation:

By the cos double angle formula, we know $\cos(2\theta)=2\cos^2\theta-1.$ Substituting $\cos \theta$ into the formula, we get

$\cos(2\theta)=2(-\frac{1}{7})^2-1\\~~~~~~~~~~=\frac{2}{49}-1\\~~~~~~~~~~=\boxed{-\frac{47}{49}}$ .

The answer is C.

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2 years ago

Which graph represents the solution set for the system 2x + 5y ≤ 9 and 3x + 5y ≤ 9?

Solnce55 [7]

The answer is graph B. Have a nice day!

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3 years ago

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Please help answer these questions

vfiekz [6]

Step 1

given

Step 2

$\angle HKM \cong \angle OKM, \angle HMK \cong \angle OMK$

Step 3

$\overline{KM} \cong \overline{KM}$

Reason: Reflexive property

Step 4

ASA

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2 years ago

Solve the following system of equations using the SUBSTITUTION method. Show all your work! x = 2y + 1 x + y = 4

Alexxandr [17]

Answer:

Step-by-step explanation:

4x+y=14

x-2y=8

then;

x=8-2y

substitute;

4(8-2y)+8-2y=14

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3 years ago

Multi step equation using distributive property answer equals 5

artcher [175]

This equation has x terms on both the left and the right. To solve an equation like this, you must first get the variables on the same side of the equal sign. You can subtract 5x on each side of the equal sign, which gives a new equation: x + 5 = 10. hope this helps

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3 years ago

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